<script data-pm-proxy="intercept"></script><?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" xmlns:googleplay="http://www.google.com/schemas/play-podcasts/1.0"><channel><title><![CDATA[Zdenek Sipek Substack]]></title><description><![CDATA[Komplexní systémy, dlouhověkost, rakovina jako choroba metabolismu a potlačení buněčných funkcí intracelulárními patogeny. (Complex systems, longevity, cancer as a metabolic disease and suppression of cellular functions by intracellular pathogens).
 ]]></description><link>https://zdeneksipek.substack.com</link><image><url>https://substackcdn.com/image/fetch/$s_!sauP!,w_256,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fzdeneksipek.substack.com%2Fimg%2Fsubstack.png</url><title>Zdenek Sipek Substack</title><link>https://zdeneksipek.substack.com</link></image><generator>Substack</generator><lastBuildDate>Fri, 04 Sep 2026 09:13:58 GMT</lastBuildDate><atom:link href="/__u/zdeneksipek.substack.com/feed" rel="self" type="application/rss+xml"/><copyright><![CDATA[Zdeněk Šípek]]></copyright><language><![CDATA[en]]></language><webMaster><![CDATA[zdeneksipek@substack.com]]></webMaster><itunes:owner><itunes:email><![CDATA[zdeneksipek@substack.com]]></itunes:email><itunes:name><![CDATA[Zdeněk Šípek]]></itunes:name></itunes:owner><itunes:author><![CDATA[Zdeněk Šípek]]></itunes:author><googleplay:owner><![CDATA[zdeneksipek@substack.com]]></googleplay:owner><googleplay:email><![CDATA[zdeneksipek@substack.com]]></googleplay:email><googleplay:author><![CDATA[Zdeněk Šípek]]></googleplay:author><itunes:block><![CDATA[Yes]]></itunes:block><item><title><![CDATA[Longevity World Cup 2025 Winners Share What They Did to Get Hyper-healthy]]></title><description><![CDATA[A Business Insider Article]]></description><link>https://zdeneksipek.substack.com/p/longevity-world-cup-2025-winners</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/longevity-world-cup-2025-winners</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 08 Aug 2026 10:05:04 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!fFSM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fabadc76c-f1b7-4d18-99bc-403614aecdb2_1200x630.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="image-gallery-embed" data-attrs="{&quot;gallery&quot;:{&quot;images&quot;:[{&quot;type&quot;:&quot;image/png&quot;,&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/abadc76c-f1b7-4d18-99bc-403614aecdb2_1200x630.png&quot;}],&quot;caption&quot;:&quot;&quot;,&quot;alt&quot;:&quot;&quot;,&quot;staticGalleryImage&quot;:{&quot;type&quot;:&quot;image/png&quot;,&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/abadc76c-f1b7-4d18-99bc-403614aecdb2_1200x630.png&quot;}},&quot;isEditorNode&quot;:true}"></div><p>The pursuit of human longevity has entered a competitive arena with the launch of the <strong>Longevity World Cup</strong>, a tournament that ranks participants based on their ability to reduce their biological age. Founded by software engineer and Bitcoin developer Adam Ficsor&#8212;who aims to achieve &#8220;longevity escape velocity&#8221;&#8212;the inaugural competition awarded its first Bitcoin-funded prizes in January.</p><p>Rankings were determined using <strong>PhenoAge</strong>, an algorithm that estimates biological age and mortality risk using chronological age combined with standard blood markers such as cholesterol, blood sugar, and inflammation. While scientific experts emphasize that these scores are statistical estimates rather than definitive measurements of the aging process, they can effectively track health improvements over time.</p><p>To uncover what drives these remarkable results, <em>Business Insider</em> spoke with the competition&#8217;s top three finishers:</p><ul><li><p><strong>Michael Lustgarten (1st Place):</strong> A research scientist who lowered his estimated PhenoAge by 22.1 years through a decade of meticulous data collection, regular blood testing, optimized nutrition, and exercise.</p></li><li><p><strong>Zden&#283;k &#352;&#237;pek (2nd Place):</strong> Who reversed his biological age by 20.6 years by maintaining strict personal discipline, affordable health interventions, and mindfulness practices rooted in Eastern and Western philosophies.</p></li><li><p><strong>Wen Zhuang (3rd Place):</strong> A short-sprint track and field athlete who reduced his estimated PhenoAge by 20.1 years by focusing on sleep, rigorous athletic training, a nutrient-dense diet, and a vast supplement routine.</p></li></ul><p>Together, these biohackers demonstrate how a combination of data tracking, disciplined lifestyle habits, and a focus on health fundamentals can dramatically shift biological age markers.</p><div><hr></div><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p>Source: </p><p><a href="https://health.yahoo.com/wellness/healthy-aging/longevity/articles/top-longevity-competitors-lowered-estimated-133111918.html">Top biohackers share what they did to get hyper-healthy</a></p>]]></content:encoded></item><item><title><![CDATA[Amoniak jako motor rakoviny]]></title><description><![CDATA[a jeho blokace prost&#345;ednictv&#237;m fenylbutyr&#225;tu sodn&#233;ho]]></description><link>https://zdeneksipek.substack.com/p/amoniak-jako-motor-rakoviny</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/amoniak-jako-motor-rakoviny</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 02 Aug 2026 13:43:20 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!RHQ-!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>&#268;l&#225;nek shrnuje poznatky o roli amoniaku jako kl&#237;&#269;ov&#233;ho regul&#225;toru metabolismu rakovinn&#253;ch bun&#283;k. Tradi&#269;n&#283; byl amoniak pova&#382;ov&#225;n za prost&#253; metabolick&#253; odpad, av&#353;ak sou&#269;asn&#225; anal&#253;za nazna&#269;uje, &#382;e funguje jako centr&#225;ln&#237; hybatel bun&#283;&#269;n&#253;ch proces&#367; podporuj&#237;c&#237;ch iniciaci, progresi a rezistenci rakoviny v&#367;&#269;i l&#233;&#269;b&#283;.</p><p>Mezi nejd&#367;le&#382;it&#283;j&#353;&#237; zji&#353;t&#283;n&#237; pat&#345;&#237;:</p><ul><li><p><strong>Metabolick&#233; p&#345;eprogramov&#225;n&#237;:</strong> Amoniak vynucuje p&#345;echod z oxidativn&#237;ho na anaerobn&#237; metabolismus (Warburg&#367;v efekt) prost&#345;ednictv&#237;m mitochondri&#225;ln&#237; dysfunkce.</p></li><li><p><strong>Sign&#225;ln&#237; funkce:</strong> P&#367;sob&#237; jako bezprecedentn&#237; sign&#225;ln&#237; molekula aktivuj&#237;c&#237; synt&#233;zu lipid&#367; a angiogenezi, co&#382; jsou procesy nezbytn&#233; pro r&#367;st n&#225;doru.</p></li><li><p><strong>Imunitn&#237; &#250;nik:</strong> Vysok&#225; hladina amoniaku v n&#225;dorov&#233;m mikroprost&#345;ed&#237; vy&#269;erp&#225;v&#225; T-bu&#328;ky a zp&#367;sobuje dysfunkci dendritick&#253;ch bun&#283;k, co&#382; vede k rezistenci v&#367;&#269;i imunoterapii.</p></li><li><p><strong>Terapeutick&#253; potenci&#225;l:</strong> L&#225;tky pro sni&#382;ov&#225;n&#237; hladiny amoniaku (nap&#345;. fenylbutyr&#225;t sodn&#253;) vykazuje potenci&#225;l v naru&#353;en&#237; r&#367;stov&#253;ch drah n&#225;doru a zlep&#353;en&#237; imunitn&#237; reakce.</p></li></ul><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p><strong>Amoniak jako v&#253;znamn&#253; regul&#225;tor n&#225;dorov&#233;ho fenotypu</strong></p><p>Chronick&#253; stres o&#382;ivuje prav&#283;k&#233; genetick&#233; adaptace bun&#283;k na prost&#345;ed&#237; s n&#237;zk&#253;m obsahem kysl&#237;ku. V takov&#253;ch podm&#237;nk&#225;ch amoniak nefunguje pouze jako vedlej&#353;&#237; produkt, ale jako aktivn&#237; sign&#225;l pro bun&#283;&#269;n&#253; r&#367;st a d&#283;len&#237;.</p><ul><li><p><strong>Souvislost s dusitany:</strong> Amoniak je prekurzorem dusitan&#367;. V&#253;zkum ukazuje, &#382;e sn&#237;&#382;en&#237; kontaminace pitn&#233; vody dusitany vedlo k v&#253;znamn&#233;mu poklesu &#250;mrtnosti na rakovinu (nap&#345;. v &#268;&#237;n&#283; po roce 2004). Dusitany v krevn&#237;m ob&#283;hu indukuj&#237; hypoxii, kter&#225; spou&#353;t&#237; hydrol&#253;zu mo&#269;oviny a oxidaci amonn&#233;ho iontu.</p></li><li><p><strong>Pseudohypoxemie:</strong> Amoniak zvy&#353;uje expresi faktoru HIF-1&#945; (Hypoxia-Inducible Factor-1 alpha), &#269;&#237;m&#382; vytv&#225;&#345;&#237; stav &#8220;pseudohypoxemie&#8221;. Bu&#328;ky reaguj&#237;, jako by m&#283;ly nedostatek kysl&#237;ku, i kdy&#382; je jeho hladina v norm&#283;.</p></li></ul><p><strong>Mitochondri&#225;ln&#237; energetick&#225; krize</strong></p><p>Amoniak zp&#367;sobuje z&#225;va&#382;nou dysfunkci mitochondri&#237; prost&#345;ednictv&#237;m n&#283;kolika mechanism&#367;, kter&#233; vedou k rychl&#233;mu vy&#269;erp&#225;n&#237; ATP.</p><ul><li><p><strong>Fragmentace mitochondri&#237;:</strong> K fragmentaci doch&#225;z&#237; b&#283;hem n&#283;kolika minut po vystaven&#237; amoniaku, co&#382; vede ke ztr&#225;t&#283; sestavy superkomplex&#367; elektronov&#233;ho transportn&#237;ho &#345;et&#283;zce.</p></li><li><p><strong>Katapler&#243;za:</strong> Amoniak od&#269;erp&#225;v&#225; alfa-ketoglutar&#225;t z citr&#225;tov&#233;ho (TCA) cyklu pro synt&#233;zu glutaminu. Tento proces p&#345;evy&#353;uje schopnost bu&#328;ky dopl&#328;ovat tyto meziprodukty.</p></li><li><p><strong>Posun k anaerobn&#237;mu metabolismu:</strong> V&#253;sledn&#225; energetick&#225; krize vede k akumulaci lakt&#225;tu a posunu k glykol&#253;ze, co&#382; je charakteristick&#253; znak rakovinn&#253;ch bun&#283;k (Warburg&#367;v efekt).</p></li><li><p><strong>Vyt&#283;sn&#283;n&#237; drasl&#237;ku:</strong> Amoniak m&#367;&#382;e vyt&#283;snit drasl&#237;k z vnit&#345;ku bu&#328;ky, co&#382; d&#225;le sni&#382;uje bun&#283;&#269;nou respiraci.</p></li></ul><p><strong>Podpora r&#367;stu: Angiogeneze a lipogeneze</strong></p><p>Amoniak p&#345;&#237;mo podporuje kl&#237;&#269;ov&#233; procesy nezbytn&#233; pro biomasu a &#353;&#237;&#345;en&#237; n&#225;doru:</p><ul><li><p><strong>Angiogeneze:</strong> Aktivac&#237; dr&#225;hy PI3K/Akt zvy&#353;uje amoniak expresi angiogenn&#237;ch faktor&#367;, jako je VEGF, co&#382; vede k tvorb&#283; nov&#253;ch c&#233;v vy&#382;ivuj&#237;c&#237;ch n&#225;dor.</p></li><li><p><strong>Synt&#233;za lipid&#367;:</strong> Amoniak uvoln&#283;n&#253; z glutaminu aktivuje proteiny SREBP1 (sterol regulatory element-binding proteins). To p&#345;&#237;mo spojuje z&#225;vislost rakoviny na glutaminu se zv&#253;&#353;enou produkc&#237; lipid&#367; pot&#345;ebn&#253;ch pro replikaci bun&#283;k.</p></li></ul><p><strong>Reprogramov&#225;n&#237; mo&#269;ovinov&#233;ho cyklu (UC)</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!lujF!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 424w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 848w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 1272w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!lujF!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png" width="680" height="363" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 424w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 848w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 1272w, /__u/substackcdn.com/image/fetch/$s_!lujF!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe1c6d023-5496-4d30-a9fd-19ff769019a8_680x363.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><ul><li><p><strong>Role ASS1:</strong> U ASS1-pozitivn&#237;ch n&#225;dor&#367; doch&#225;z&#237; k masivn&#237; p&#345;em&#283;n&#283; citrulinu na arginin, kter&#253; je n&#225;sledn&#283; vyu&#382;it pro tvorbu polyamin&#367; (putrescin, spermidin, spermin) podporuj&#237;c&#237;ch rychlou proliferaci.</p></li></ul><p><strong>Imunosuprese a odolnost v&#367;&#269;i l&#233;&#269;b&#283;</strong></p><p>Amoniak je z&#225;sadn&#237;m faktorem imunitn&#237;ho &#250;niku v n&#225;dorov&#233;m mikroprost&#345;ed&#237; (TME).</p><ul><li><p><strong>Dysfunkce dendritick&#253;ch bun&#283;k:</strong> Amoniak naru&#353;uje schopnost t&#283;chto bun&#283;k prezentovat antigeny a aktivovat imunitn&#237; odpov&#283;&#271;.</p></li><li><p><strong>Vy&#269;erp&#225;n&#237; T-bun&#283;k:</strong> Vysok&#233; hladiny NH3 vedou k ni&#382;&#353;&#237;mu po&#269;tu T-bun&#283;k a k jejich funk&#269;n&#237;mu vy&#269;erp&#225;n&#237;. To m&#367;&#382;e vysv&#283;tlovat, pro&#269; a&#382; 70 % pacient&#367; nereaguje na imunoterapii.</p></li><li><p><strong>Klinick&#225; implikace:</strong> Strategie sni&#382;uj&#237;c&#237; hladinu amoniaku by mohly p&#345;em&#283;nit imunitn&#283; &#8220;studen&#233;&#8221; n&#225;dory na &#8220;hork&#233;&#8221;, kter&#233; reaguj&#237; na kontroln&#237; body imunitn&#237;ho syst&#233;mu.</p></li></ul><p><strong>Dal&#353;&#237; mechanismy po&#353;kozen&#237;</strong></p><ul><li><p><strong>Hypoxie:</strong> Amoniak zp&#367;sobuje posun disocia&#269;n&#237; k&#345;ivky hemoglobinu doleva, co&#382; sni&#382;uje uvol&#328;ov&#225;n&#237; kysl&#237;ku do bun&#283;k a pre-kondicionuje je pro malign&#237; transformaci.</p></li><li><p><strong>Kachexie:</strong> Existuje p&#345;&#237;m&#225; souvislost mezi hyperamon&#233;mi&#237; a zv&#253;&#353;enou expres&#237; myostatinu, co&#382; vede k &#250;bytku svalov&#233; hmoty u onkologick&#253;ch pacient&#367;.</p></li><li><p><strong>Inhibice ADH a naru&#353;en&#237; kyseliny retinov&#233;:</strong> Amoniak inhibuje alkohol-dehydrogen&#225;zu (ADH), co&#382; m&#367;&#382;e v&#233;st k deficitu kyseliny retinov&#233; a naru&#353;en&#237; bun&#283;&#269;n&#233; diferenciace.</p></li><li><p><strong>Vazba m&#283;di:</strong> Amoniak m&#367;&#382;e zp&#367;sobit uvoln&#283;n&#237; m&#283;di, co&#382; stabilizuje HIF-1&#945; i v normoxick&#253;ch podm&#237;nk&#225;ch.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!RHQ-!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!RHQ-!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!RHQ-!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dae6892-0a2d-4b55-b3ea-f6a7fc085034_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>Fenylbutyr&#225;t sodn&#253; a jeho potenci&#225;l v onkologick&#233; l&#233;&#269;b&#283;</strong></p><p>Fenylbutyr&#225;t sodn&#253; (FB) p&#345;edstavuje unik&#225;tn&#237; p&#345;&#237;klad &#8222;repurposingu&#8220; (zm&#283;ny &#250;&#269;elu) l&#233;&#269;iva. P&#367;vodn&#283; schv&#225;len FDA pro poruchy mo&#269;ovinov&#233;ho cyklu, tento agent vykazuje potenci&#225;l v onkologii d&#237;ky sv&#233; schopnosti dosahovat terapeutick&#253;ch koncentrac&#237; v milimol&#225;rn&#237;m m&#283;&#345;&#237;tku p&#345;i zachov&#225;n&#237; vysok&#233; bezpe&#269;nosti. FB umo&#382;&#328;uje dlouhodobou expozici, kter&#225; vedla k historicky bezprecedentn&#237;m v&#253;sledk&#367;m, v&#269;etn&#283; kompletn&#237; regrese tumoru u rekurentn&#237;ho malign&#237;ho gliomu. Jeho mechanismus &#250;&#269;inku je multifaktori&#225;ln&#237;: kombinuje epigenetickou modulaci, metabolick&#233; p&#345;eprogramov&#225;n&#237; (zvr&#225;cen&#237; Warburgova efektu), depleci amoniaku a selektivn&#237; oxida&#269;n&#237; stres. Kl&#237;&#269;ovou v&#253;hodou je vysok&#225; biologick&#225; dostupnost (78 %) a schopnost prostupovat hematoencefalickou bari&#233;rou, co&#382; z n&#283;j &#269;in&#237; ide&#225;ln&#237;ho kandid&#225;ta pro l&#233;&#269;bu mozkov&#253;ch n&#225;dor&#367; a kombinovan&#233; terapie.</p><div><hr></div><p><strong>Mechanismy protin&#225;dorov&#233;ho &#250;&#269;inku</strong></p><p>Fenylbutyr&#225;t sodn&#253; p&#367;sob&#237; prost&#345;ednictv&#237;m n&#283;kolika vz&#225;jemn&#283; propojen&#253;ch drah, kter&#233; c&#237;l&#237; na epigenetick&#233; a metabolick&#233; zranitelnosti rakovinn&#253;ch bun&#283;k.</p><ul><li><p><strong>Inhibice histondeacetyl&#225;zy (HDACi):</strong> FB indukuje apopt&#243;zu a z&#225;stavu bun&#283;&#269;n&#233;ho cyklu. P&#345;i klinicky dosa&#382;iteln&#253;ch koncentrac&#237;ch zvy&#353;uje expresi p21WAF1/CIP1 o 521 %.</p></li><li><p><strong>Metabolick&#233; p&#345;eprogramov&#225;n&#237;:</strong> Jako inhibitor kin&#225;z pyruv&#225;tdehydrogen&#225;zy (PDK) nut&#237; rakovinn&#233; bu&#328;ky p&#345;ej&#237;t z aerobn&#237; glykol&#253;zy (Warburg&#367;v efekt) zp&#283;t k oxidativn&#237; fosforylaci. To vede ke sn&#237;&#382;en&#237; produkce lakt&#225;tu a zv&#253;&#353;en&#237; spot&#345;eby kysl&#237;ku, co&#382; je pro glykol&#253;zu dependentn&#237; tumory fat&#225;ln&#237;.</p></li><li><p><strong>Inhibice epiteli&#225;ln&#283;-mezenchym&#225;ln&#237;ho p&#345;echodu (EMT):</strong> Sni&#382;uje invazivitu a migraci rakovinn&#253;ch bun&#283;k (zejm&#233;na u karcinomu dutiny &#250;stn&#237;) prost&#345;ednictv&#237;m downregulace signalizace TGF-&#946;.</p></li><li><p><strong>Selektivn&#237; oxida&#269;n&#237; stres:</strong> Zat&#237;mco v norm&#225;ln&#237;ch bu&#328;k&#225;ch ROS (reaktivn&#237; formy kysl&#237;ku) sni&#382;uje, v malign&#237;ch bu&#328;k&#225;ch je p&#345;echodn&#283; zvy&#353;uje, co&#382; p&#345;isp&#237;v&#225; k pro-apoptotick&#233;mu mechanismu.</p></li><li><p><strong>Radiosenzitizace:</strong> Zvy&#353;uje &#250;&#269;innost radioterapie (koeficienty 1,3&#8211;1,5), zejm&#233;na u glioblastomu s mutantn&#237;m p53, t&#237;m, &#382;e br&#225;n&#237; oprav&#283; DNA vyvolan&#233; z&#225;&#345;en&#237;m.</p></li></ul><p><strong>Klinick&#233; d&#367;kazy a specifick&#233; indikace</strong></p><p><strong>Glioblastom a mozkov&#233; n&#225;dory</strong></p><p>Z&#225;sadn&#237;m p&#345;&#237;padem je tzv. <strong>&#8222;Z&#225;zrak z Moffittova centra&#8220;</strong>:</p><ul><li><p><strong>Pacientka:</strong> 44let&#225; &#382;ena s rekurentn&#237;m, multicentrick&#253;m malign&#237;m gliomem po selh&#225;n&#237; radiace a n&#283;kolika cykl&#367; chemoterapie.</p></li><li><p><strong>L&#233;&#269;ba:</strong> <strong>Monoterapie</strong> fenylbutyr&#225;tem (po&#269;&#225;te&#269;n&#237; d&#225;vka 18 g/den).</p></li><li><p><strong>V&#253;sledek:</strong> Kompletn&#237; radiografick&#225; odpov&#283;&#271; po 9 m&#283;s&#237;c&#237;ch. Remise trvala v&#237;ce ne&#382; 4 roky p&#345;i udr&#382;ovac&#237; n&#237;zk&#233; d&#225;vce (4,5 g/den) s Karnofsk&#233;ho sk&#243;re 100 %.</p></li><li><p><strong>Kombinace:</strong> V kombinaci s pazopanibem, everolimem a bevacizumabem bylo u rekurentn&#237;ho glioblastomu dosa&#382;eno 54,5% m&#237;ry objektivn&#237; odpov&#283;di.</p></li></ul><p><strong>Dal&#353;&#237; malignity</strong></p><ul><li><p><strong>Rakovina slinivky:</strong> Pacienti l&#233;&#269;en&#237; kombinac&#237; s FB dos&#225;hli medi&#225;nu celkov&#233;ho p&#345;e&#382;it&#237; 10,5 m&#283;s&#237;ce (oproti 2,9&#8211;6,5 m&#283;s&#237;ce u standardn&#237;ch terapi&#237; druh&#233; linie).</p></li><li><p><strong>Hematologick&#233; n&#225;dory:</strong> U akutn&#237; myeloidn&#237; leukemie a myelodysplastick&#233;ho syndromu bylo dosa&#382;eno hematologick&#233;ho zlep&#353;en&#237; u 4 z 27 pacient&#367; ve f&#225;zi I klinick&#253;ch test&#367;.</p></li><li><p><strong>Solidn&#237; tumory:</strong> Vykazuje synergii s cisplatinou u nemalobun&#283;&#269;n&#233;ho karcinomu plic (NSCLC) a vysokou citlivost u rakoviny hlavy a krku.</p></li></ul><p><strong>Synergie a protektivn&#237; &#250;&#269;inky</strong></p><p>Fenylbutyr&#225;t vykazuje pozoruhodn&#233; synergick&#233; efekty p&#345;i kombinaci s jin&#253;mi l&#225;tkami:</p><ol><li><p><strong>Doxorubicin:</strong> FB poskytuje <strong>kardioprotekci</strong>, sni&#382;uje kardiotoxicitu vyvolanou adriamycinem o v&#237;ce ne&#382; 70 % prost&#345;ednictv&#237;m upregulace mangan-superoxid dismut&#225;zy. To umo&#382;&#328;uje bezpe&#269;n&#283;j&#353;&#237; pod&#225;v&#225;n&#237; vy&#353;&#353;&#237;ch d&#225;vek chemoterapie.</p></li><li><p><strong>Vitamin D3:</strong> Kombinace vede k siln&#283;j&#353;&#237; a trvalej&#353;&#237; supresi drah NF-&#954;B a STAT3 a posouv&#225; rovnov&#225;hu od imunosupresivn&#237;ch T-regula&#269;n&#237;ch bun&#283;k k efektorov&#253;m T-bu&#328;k&#225;m (CD4+ a CD8+).</p></li><li><p><strong>Temozolomid:</strong> V p&#345;&#237;pad&#283; glioblastomu tato kombinace indukuje v&#253;raznou autofagickou bun&#283;&#269;nou smrt.</p></li></ol><p><strong>D&#367;le&#382;it&#233; upozorn&#283;n&#237;: Modulace IL-8</strong></p><p>U n&#283;kter&#253;ch typ&#367; rakoviny (&#382;aludek, vaje&#269;n&#237;ky) m&#367;&#382;e FB zvy&#353;ovat expresi IL-8 (CXCL8), co&#382; m&#367;&#382;e podporovat migraci n&#225;doru. V t&#283;chto p&#345;&#237;padech je strategicky vhodn&#233; kombinovat FB s inhibitory IL-8 nebo drah ERK/Gab2 pro maximalizaci protin&#225;dorov&#233;ho &#250;&#269;inku.</p><p><strong>Farmakokinetika, d&#225;vkov&#225;n&#237; a bezpe&#269;nost</strong></p><ul><li><p><strong>D&#225;vkov&#225;n&#237;:</strong> Maxim&#225;ln&#237; tolerovan&#225; d&#225;vka (MTD) pro solidn&#237; tumory je 27 g denn&#283;. B&#283;&#382;n&#233; terapeutick&#233; koncentrace se pohybuj&#237; kolem 706 &#956;M (p&#345;i 9 g/den) a&#382; 1 225 &#956;M (p&#345;i 27 g/den).</p></li><li><p><strong>Vedlej&#353;&#237; &#250;&#269;inky:</strong> Nej&#269;ast&#283;j&#353;&#237; jsou gastrointestin&#225;ln&#237; symptomy, m&#237;rn&#233; neurokognitivn&#237; &#250;&#269;inky a t&#283;lesn&#253; z&#225;pach. Vz&#225;cn&#283; se m&#367;&#382;e objevit hypokalc&#233;mie nebo hypokal&#233;mie.</p></li><li><p><strong>Nutri&#269;n&#237; interakce:</strong> Vysokoproteinov&#225; dieta m&#367;&#382;e sni&#382;ovat &#250;&#269;innost FB, proto&#382;e l&#233;&#269;ivo je pak &#8222;vypl&#253;tv&#225;no&#8220; na odstra&#328;ov&#225;n&#237; dus&#237;ku ze stravy m&#237;sto z n&#225;doru.</p></li><li><p><strong>Riziko amoniaku:</strong> P&#345;i agresivn&#237;m d&#225;vkov&#225;n&#237; u pacient&#367; s kompromitovan&#253;mi j&#225;try m&#367;&#382;e doj&#237;t k selh&#225;n&#237; zpracov&#225;n&#237; amoniaku a n&#225;sledn&#233; neurotoxicit&#283;.</p></li><li><p><strong>Obsah sod&#237;ku:</strong> 1 gram fenylbutyr&#225;tu obsahuje 125 mg sod&#237;ku. Management vy&#382;aduje dietu s n&#237;zk&#253;m obsahem sod&#237;ku a suplementaci drasl&#237;ku.</p></li></ul><p><strong>Budouc&#237; v&#253;voj</strong></p><p>V&#253;voj sm&#283;&#345;uje k nov&#253;m formulac&#237;m, kter&#233; &#345;e&#353;&#237; sou&#269;asn&#225; omezen&#237;:</p><ul><li><p><strong>AN-113:</strong> Pro-drug s 20kr&#225;t vy&#353;&#353;&#237; potenc&#237; p&#345;i zachov&#225;n&#237; bezpe&#269;nosti.</p></li><li><p><strong>Ravicti (Glycerol-fenylbutyr&#225;t):</strong> Bez chuti, poskytuje stabiln&#283;j&#353;&#237; expozici l&#233;&#269;ivu.</p></li><li><p><strong>Biomarkery:</strong> Status p53 nebo metylace MGMT mohou v budoucnu slou&#382;it jako prediktory pro optim&#225;ln&#237; nasazen&#237; PB v kombinovan&#253;ch protokolech.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!akNp!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!akNp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!akNp!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2dd1f27c-7458-483b-aa77-097cf2e93d0b_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p>Z&#225;v&#283;rem uv&#225;d&#237;m p&#345;&#237;padovou studii dokumentuj&#237;c&#237; &#250;sp&#283;ch pacienta Jorgeho s glioblastomem u n&#283;ho&#382; selhala standardn&#237; l&#233;&#269;ba a kter&#253; p&#345;esto &#382;ije v&#237;ce ne&#382; dv&#283; dek&#225;dy od diagn&#243;zy.</p><p>V prosinci 2002 byl pacientovi diagnostikov&#225;n tento tumor; po selh&#225;n&#237; standardn&#237; radioterapie a chemoterapie (temozolomid) p&#345;e&#353;el na experiment&#225;ln&#237; multi-c&#237;len&#253; p&#345;&#237;stup. Tento protokol kombinoval konven&#269;n&#237; chemoterapii (CCNU), tamoxifen, vysok&#233; d&#225;vky melatoninu a dopl&#328;ky stravy biochemicky ekvivalentn&#237; fenylbutyr&#225;tu sodn&#233;mu (NaFB). V&#253;sledkem byla kompletn&#237; regrese n&#225;doru do 14 m&#283;s&#237;c&#367; od diagn&#243;zy. </p><p><strong>Detailn&#237; anal&#253;za l&#233;&#269;ebn&#233;ho protokolu</strong></p><p>Jorgeho p&#345;&#237;stup se odch&#253;lil od monoterapie sm&#283;rem ke strategii zasahuj&#237;c&#237; v&#237;ce biologick&#253;ch drah sou&#269;asn&#283;. Protokol zahrnoval n&#225;sleduj&#237;c&#237; slo&#382;ky:</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Hnr_!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 424w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 848w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Hnr_!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png" width="687" height="385" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 424w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 848w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Hnr_!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F206968c5-bf01-42f3-a65e-f1bedcb73aa4_687x385.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Role fenylbutyr&#225;tu a antineoplaston&#367;</strong></p><p>Kl&#237;&#269;ov&#253;m a nejpozoruhodn&#283;j&#353;&#237;m prvkem protokolu byl dopln&#283;k <strong>Aminocare A10</strong>, kter&#253; v tehdej&#353;&#237; form&#283; obsahoval deriv&#225;ty L-glutaminu.</p><p><strong>Biochemick&#225; ekvivalence a mechanismus</strong></p><p>Dopln&#283;k A10 je v textu identifikov&#225;n jako biochemick&#253; ekvivalent metabolit&#367; produkovan&#253;ch <strong>fenylbutyr&#225;tem sodn&#253;m (NaPB)</strong>, konkr&#233;tn&#283; jde o fenylacetylglutamin (PAG) a fenylacet&#225;t.</p><ol><li><p><strong>D&#225;vkov&#225;n&#237;:</strong> Jorge u&#382;&#237;val 18 kapsl&#237; A10 denn&#283;, co&#382; odpov&#237;dalo p&#345;ibli&#382;n&#283; 2,52 g fenylacetylglutaminu. Tento objem je ekvivalentn&#237; zhruba <strong>16,5&#8211;21 gram&#367;m fenylbutyr&#225;tu sodn&#233;ho</strong>, co&#382; je terapeutick&#225; d&#225;vka odpov&#237;daj&#237;c&#237; &#250;sp&#283;&#353;n&#253;m klinick&#253;m p&#345;&#237;pad&#367;m.</p></li></ol><p><strong>Synergie: P&#345;&#237;stup &#8220;Dokonal&#233; bou&#345;e&#8221;</strong></p><p>&#218;sp&#283;ch Jorgeho protokolu nebyl d&#225;n jedinou l&#225;tkou, ale jejich vz&#225;jemn&#253;m pos&#237;len&#237;m (synergi&#237;):</p><ul><li><p><strong>&#218;tok na integritu DNA:</strong> Zaji&#353;t&#283;n chemoterapi&#237; (CCNU).</p></li><li><p><strong>Epigenetick&#253; zvrat:</strong> Zaji&#353;t&#283;n fenylbutyr&#225;tem/A10 (inhibice HDAC).</p></li><li><p><strong>Senzibilizace:</strong> Melatonin, tamoxifen a fenylbutyr&#225;t spole&#269;n&#283; zv&#253;&#353;ily citlivost n&#225;doru na toxick&#233; &#250;&#269;inky l&#233;&#269;by.</p></li><li><p><strong>Metabolick&#233; vyhladov&#283;n&#237;:</strong> Kombinace bezcukrov&#233; diety a &#8220;glutaminov&#233; pasti&#8221; (NaPB) omezila zdroje energie pro tumor.</p></li><li><p><strong>Ochrana zdrav&#253;ch bun&#283;k:</strong> Melatonin a fenylbutyr&#225;t p&#367;sobily preventivn&#283; proti nadm&#283;rn&#233; toxicit&#283;.</p></li></ul><div><hr></div><p><strong>&#268;asov&#225; osa zotaven&#237;</strong></p><ul><li><p><strong>Prosinec 2002:</strong> Diagn&#243;za GBM po epileptick&#253;ch projevech (nesrozumiteln&#225; &#345;e&#269;); n&#225;sledn&#225; operace.</p></li><li><p><strong>Poopera&#269;n&#237; f&#225;ze:</strong> Selh&#225;n&#237; standardn&#237; l&#233;&#269;by (radiace + temozolomid); n&#225;dor pokra&#269;oval v r&#367;stu.</p></li><li><p><strong>Zm&#283;na strategie:</strong> Zah&#225;jen&#237; experiment&#225;ln&#237;ho protokolu (CCNU + Tamoxifen + Melatonin + A10).</p></li><li><p><strong>1. m&#283;s&#237;c l&#233;&#269;by:</strong> MRI prok&#225;zalo m&#237;rn&#233; zmen&#353;en&#237; n&#225;doru.</p></li><li><p><strong>6. m&#283;s&#237;c l&#233;&#269;by:</strong> Dokon&#269;en&#237; cyklu CCNU bez v&#253;znamn&#253;ch vedlej&#353;&#237;ch &#250;&#269;ink&#367;.</p></li><li><p><strong>Leden 2004 (14 m&#283;s&#237;c&#367; od diagn&#243;zy):</strong> MRI uk&#225;zalo kompletn&#237; regresi n&#225;doru; p&#345;&#237;tomna byla pouze jizva.</p></li><li><p><strong>Listopad 2023 (21 let pozd&#283;ji):</strong> MRI potvrdilo stav bez n&#225;lezu recidivy.</p></li></ul><div><hr></div><p><strong>Modern&#237; kontext a sou&#269;asn&#233; poznatky</strong></p><p>Jorgeho p&#345;&#237;pad p&#345;edznamenal modern&#237; v&#253;zkumy v oblasti kombinovan&#233; terapie a repurposingu l&#233;k&#367;.</p><ul><li><p><strong>SEF Chemo (Side-Effect-Free Chemotherapy):</strong> V&#253;zkum Dr. Kena Matsumury vyu&#382;&#237;v&#225; kombinaci karboplatiny a fenylbutyr&#225;tu sodn&#233;ho, p&#345;i&#269;em&#382; uv&#225;d&#237; vysokou &#250;sp&#283;&#353;nost pr&#225;v&#283; u t&#233;to kombinace.</p></li><li><p><strong>Dostupnost:</strong> Antineoplastony (A10) ji&#382; nejsou v p&#367;vodn&#237; form&#283; dostupn&#233; a slo&#382;en&#237; voln&#283; prodejn&#253;ch dopl&#328;k&#367; se zm&#283;nilo. Nicm&#233;n&#283; fenylbutyr&#225;t sodn&#253; z&#367;st&#225;v&#225; l&#233;kem schv&#225;len&#253;m FDA pro poruchy mo&#269;ovinov&#233;ho cyklu, co&#382; umo&#382;&#328;uje jeho potenci&#225;ln&#237; vyu&#382;it&#237; v r&#225;mci &#8220;off-label&#8221; l&#233;&#269;by pod l&#233;ka&#345;sk&#253;m dohledem.</p></li><li><p><strong>V&#253;znam udr&#382;ovac&#237; l&#233;&#269;by:</strong> Jorgeho dlouhodob&#233; u&#382;&#237;v&#225;n&#237; tamoxifenu a melatoninu nazna&#269;uje, &#382;e pro prevenci recidivy u GBM je kl&#237;&#269;ov&#225; i f&#225;ze po dosa&#382;en&#237; remise.</p></li></ul><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje: </p><p><a href="https://synergiesforcancertreatments.blogspot.com/p/ammonia-in-cancer-development.html">Synergies for Cancer Treatment - Ammonia</a></p><p><a href="https://synergiesforcancertreatments.blogspot.com/p/17-year-glioblastoma-survivor.html">Synergies For Cancer Treatment - Case Report: Remarkable Recovery from Glioblastoma</a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[An average of 18 years younger biological age]]></title><description><![CDATA[PhenoAge result from January &#8211; July 2026]]></description><link>https://zdeneksipek.substack.com/p/an-average-of-18-years-younger-biological</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/an-average-of-18-years-younger-biological</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Mon, 20 Jul 2026 13:52:28 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!VzOX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VzOX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VzOX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!VzOX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png 424w, /__u/substackcdn.com/image/fetch/$s_!VzOX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png 848w, /__u/substackcdn.com/image/fetch/$s_!VzOX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VzOX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbf4c0908-1f7c-4639-92ef-8e9f41bce1ad_1408x768.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>The following numbers are the average of four tests.</p><ul><li><p>Albumin 46.4 g/L</p></li><li><p>Creatinine 68.8 &#181;mol/L</p></li><li><p>Glucose 4.6 mmol/L</p></li><li><p>CRP 0 mg/L (calculated 0.2 mg/L) - every lab presented the lowest value they can measure from the start of testing)</p></li><li><p>LYM 46.7%</p></li><li><p>MCV 89.49 fL</p></li><li><p>ALP 0.896 &#181;kat/L</p></li><li><p>WBC 4.82 giga/L (but 4.1 giga/L from today)</p></li><li><p>RDW 12.26%</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!m-IX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffd1117f4-ce37-491d-85fc-7ce628bb54f1_1367x748.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!m-IX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!m-IX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffd1117f4-ce37-491d-85fc-7ce628bb54f1_1367x748.png 1456w" sizes="100vw"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>My average <strong>Levine</strong> PhenoAge result is very much in line with <strong>the Bortz biological age</strong>, despite me being &#8216;handicapped&#8217; by my creatinine and cholesterol <strong>results</strong>.</p><p>My average cystatin C is <strong>0.585</strong> mg/L and my eGFR (Cystatin C) is <strong>&gt;120</strong>, which is <strong>excellent / optimal</strong>.</p><p>My creatinine went down from <strong>80.0</strong> to <strong>68.8</strong> &#181;mol/L despite <a href="https://www.youtube.com/watch?v=l_mCAO7L5vw">adding muscle mass</a>.</p><p>My cholesterol is tightly managed: Triglycerides are <strong>0.40</strong> mmol/L, total cholesterol is <strong>3.90</strong> mmol/L, HDL is <strong>1.70</strong> mmol/L, and LDL is <strong>2.00</strong> mmol/L. My Lp(a) is <strong>8.00</strong> nmol/L.</p><p>My urea was <strong>5.38</strong> mmol/L and GGT was <strong>0.172</strong> &#181;kat/L.</p><p>Absolute lymphocytes continue to dominate my immune profile at <strong>2.23 &#215; 10&#8313;/L</strong> (with monocytes at <strong>1.85 &#215; 10&#8313;/L</strong>).</p><p>I am currently working on pushing my HbA1c under <strong>5.0%</strong> (from <strong>5.2%</strong>) and doing some minor tweaking around my RDW and MCV.</p><p><strong>My kidney</strong> and liver subprotocols seem to work like clockwork, and I will <strong>probably</strong> publish them with my <strong>complete 2026 protocol</strong> by the end of the year.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p></p>]]></content:encoded></item><item><title><![CDATA[Pottengerovy kočky]]></title><description><![CDATA[Biologick&#225; sabot&#225;&#382; budouc&#237;ch generac&#237;: Pr&#367;myslov&#283; upraven&#225; strava jako cesta k reproduk&#269;n&#237;mu krachu]]></description><link>https://zdeneksipek.substack.com/p/pottengerovy-kocky</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/pottengerovy-kocky</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 19 Jul 2026 08:29:13 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!VwQa!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VwQa!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 424w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 848w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!VwQa!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png" width="1155" height="626" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:626,&quot;width&quot;:1155,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1076656,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/205470896?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 424w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 848w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VwQa!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4e4f0fd4-1169-4bf7-a46b-73863a3901e9_1155x626.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tento &#269;l&#225;nek p&#345;edstavuje podrobn&#253; rozbor klasick&#233; studie Dr. Francise M. Pottengera ml., kter&#225; zkoumala vliv tepeln&#283; zpracovan&#233; stravy na zdrav&#237; a v&#253;voj n&#283;kolika generac&#237; ko&#269;ek. Studie, prob&#237;haj&#237;c&#237; v letech 1932 a&#382; 1942, poskytuje z&#225;sadn&#237; poznatky o nutri&#269;n&#237; degeneraci a jej&#237;m p&#345;enosu na potomstvo.</p><p>Desetilet&#253; v&#253;zkum Dr. Pottengera na vzorku v&#237;ce ne&#382; 900 ko&#269;ek prok&#225;zal, &#382;e <strong>pouze strava obsahuj&#237;c&#237; 100 % syrov&#233;ho masa a syrov&#233;ho ml&#233;ka zaji&#353;&#357;uje optim&#225;ln&#237; zdrav&#237;</strong>. Jak&#253;koli stupe&#328; tepeln&#233;ho zpracov&#225;n&#237; stravy vedl k progresivn&#237; fyzick&#233; a psychick&#233; degeneraci, kter&#225; se s ka&#382;dou dal&#353;&#237; generac&#237; zhor&#353;ovala.</p><p><strong>Kl&#237;&#269;ov&#233; z&#225;v&#283;ry studie:</strong></p><ul><li><p><strong>Genera&#269;n&#237; &#250;padek:</strong> Zat&#237;mco prvn&#237; generace na va&#345;en&#233; strav&#283; vykazovala zn&#225;mky nedostatku, t&#345;et&#237; generace byla natolik fyziologicky degradov&#225;na, &#382;e v&#283;t&#353;ina jedinc&#367; nep&#345;e&#382;ila d&#233;le ne&#382; &#353;est m&#283;s&#237;c&#367;, &#269;&#237;m&#382; linie zanikla.</p></li><li><p><strong>Fyzick&#233; symptomy:</strong> Degenerace se projevovala deformacemi kostry, z&#250;&#382;en&#237;m obli&#269;ejov&#253;ch struktur (v&#269;etn&#283; zubn&#237;ch oblouk&#367;), m&#283;knut&#237;m kost&#237; a &#250;bytkem v&#225;pn&#237;ku a fosforu.</p></li><li><p><strong>Reproduk&#269;n&#237; selh&#225;n&#237;:</strong> Va&#345;en&#225; strava vedla k drastick&#233;mu n&#225;r&#367;stu potratovosti, obt&#237;&#382;n&#253;m porod&#367;m a ztr&#225;t&#283; mate&#345;sk&#233;ho pudu. Ve druh&#233; generaci bylo 83 % samc&#367; funk&#269;n&#283; steriln&#237;ch.</p></li><li><p><strong>Psychick&#233; a endokrinn&#237; zm&#283;ny:</strong> Zv&#237;&#345;ata na va&#345;en&#233; strav&#283; vykazovala zv&#253;&#353;enou podr&#225;&#382;d&#283;nost, zm&#283;ny v sexu&#225;ln&#237;m chov&#225;n&#237;, hypotyre&#243;zu a rozs&#225;hl&#233; alergick&#233; stavy.</p></li><li><p><strong>Mo&#382;nost regenerace:</strong> N&#225;vrat k syrov&#233; strav&#283; mohl zvr&#225;tit degenerativn&#237; procesy, av&#353;ak k obnoven&#237; zdrav&#237; u siln&#283; po&#353;kozen&#253;ch lini&#237; bylo zapot&#345;eb&#237; p&#345;ibli&#382;n&#283; &#269;ty&#345; generac&#237; optim&#225;ln&#237; v&#253;&#382;ivy.</p></li></ul><div><hr></div><p><strong>Metodika a definice skupin</strong></p><p>Dr. Pottenger rozd&#283;lil experiment&#225;ln&#237; zv&#237;&#345;ata do t&#345;&#237; z&#225;kladn&#237;ch kategori&#237; na z&#225;klad&#283; jejich stravy a zdravotn&#237;ho stavu:</p><ol><li><p><strong>Norm&#225;ln&#237; ko&#269;ky:</strong> Narozeny zdrav&#253;m rodi&#269;&#367;m, krmeny optim&#225;ln&#237; stravou (syrov&#233; maso, syrov&#233; ml&#233;ko, olej z tres&#269;&#237;ch jater). Slou&#382;ily jako kontroln&#237; skupina.</p></li><li><p><strong>Deficientn&#237; ko&#269;ky:</strong> Krmeny stravou obsahuj&#237;c&#237; jednu nebo v&#237;ce tepeln&#283; zpracovan&#253;ch slo&#382;ek. Jsou d&#283;leny na prvn&#237;, druhou a t&#345;et&#237; generaci podle d&#233;lky trv&#225;n&#237; nutri&#269;n&#237;ho nedostatku v jejich rodov&#233; linii.</p></li><li><p><strong>Regeneruj&#237;c&#237; ko&#269;ky:</strong> Potomci deficientn&#237;ch matek, kte&#345;&#237; byli po narozen&#237; nebo v pr&#367;b&#283;hu v&#253;voje p&#345;evedeni zp&#283;t na optim&#225;ln&#237; syrovou stravu.</p></li></ol><p><strong>Srovn&#225;n&#237; stravy: Syrov&#233; vs. va&#345;en&#233; maso</strong></p><p>Experiment uk&#225;zal radik&#225;ln&#237; rozd&#237;ly mezi skupinou krmenou syrov&#253;m masem (2/3 syrov&#233; maso, 1/3 syrov&#233; ml&#233;ko) a skupinou na va&#345;en&#233;m mase (2/3 va&#345;en&#233; maso, 1/3 syrov&#233; ml&#233;ko).</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!oOAz!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e7be769-fd79-484d-942f-18bdcf709ee3_781x387.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!oOAz!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e7be769-fd79-484d-942f-18bdcf709ee3_781x387.png 424w, /__u/substackcdn.com/image/fetch/$s_!oOAz!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!oOAz!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6e7be769-fd79-484d-942f-18bdcf709ee3_781x387.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Vliv zpracov&#225;n&#237; ml&#233;ka</strong></p><p>Dr. Pottenger testoval &#269;ty&#345;i druhy ml&#233;ka: syrov&#233;, pasterizovan&#233;, kondenzovan&#233; a slazen&#233; kondenzovan&#233;.</p><ul><li><p><strong>Syrov&#233; ml&#233;ko:</strong> Podporovalo norm&#225;ln&#237; r&#367;st a v&#253;voj.</p></li><li><p><strong>Pasterizovan&#233; ml&#233;ko:</strong> Vedlo ke kostern&#237;m zm&#283;n&#225;m a respira&#269;n&#237;m probl&#233;m&#367;m podobn&#253;m t&#283;m u va&#345;en&#233;ho masa.</p></li><li><p><strong>Kondenzovan&#225; ml&#233;ka:</strong> Zp&#367;sobovala nejt&#283;&#382;&#353;&#237; deformace, nadm&#283;rn&#233; ukl&#225;d&#225;n&#237; tuku a extr&#233;mn&#237; nervovou podr&#225;&#382;d&#283;nost.</p></li><li><p><strong>Ml&#233;ko s metabolizovan&#253;m vitam&#237;nem D:</strong> Zp&#367;sobovalo u samc&#367; z&#225;va&#382;n&#233; poruchy kost&#237;, k&#345;ivici a p&#345;ed&#269;asnou smrt (&#269;asto do 10 m&#283;s&#237;c&#367;), samice se jevily jako m&#233;n&#283; zasa&#382;en&#237;, ale tak&#233; degenerovaly.</p></li></ul><p><strong>Dentofaci&#225;ln&#237; a kostern&#237; degradace</strong></p><p>Jedn&#237;m z nejmarkantn&#283;j&#353;&#237;ch zji&#353;t&#283;n&#237; byl vliv v&#253;&#382;ivy na strukturu lebky a hustotu kost&#237;.</p><ul><li><p><strong>Zubn&#237; oblouky:</strong> Deficientn&#237; strava vedla k z&#250;&#382;en&#237; &#269;elist&#237;, co&#382; znemo&#382;&#328;ovalo spr&#225;vn&#233; pro&#345;ez&#225;n&#237; trval&#253;ch zub&#367;. V&#253;sledkem byla malokluze, crowding (t&#283;sn&#225;n&#237; zub&#367;) a impakce.</p></li><li><p><strong>Mineralizace kost&#237;:</strong> Anal&#253;za femuru (stehenn&#237; kosti) uk&#225;zala progresivn&#237; pokles obsahu v&#225;pn&#237;ku a fosforu. U t&#345;et&#237; generace deficientn&#237;ch ko&#269;ek klesl obsah v&#225;pn&#237;ku na pouh&#253;ch 1,5 % a&#382; 3 %, p&#345;i&#269;em&#382; kosti byly doslova m&#283;kk&#233; jako guma.</p></li><li><p><strong>Osteopor&#243;za:</strong> Rentgenov&#233; sn&#237;mky odhalily postupnou ztr&#225;tu trabekul&#225;rn&#237; struktury kost&#237; (vnit&#345;n&#237; s&#237;&#357;oviny), kter&#225; se s ka&#382;dou generac&#237; st&#225;vala hrub&#353;&#237;, a&#382; p&#345;ipom&#237;nala &#8220;s&#237;&#357; proti kom&#225;r&#367;m&#8221;.</p></li></ul><p><strong>Alergie a endokrinn&#237; dysfunkce</strong></p><p>Studie identifikovala p&#345;&#237;mou souvislost mezi tepeln&#283; upravenou stravou a rozvojem nespecifick&#253;ch zdravotn&#237;ch pot&#237;&#382;&#237;:</p><ul><li><p><strong>Alergie:</strong> Incidence alergi&#237; u t&#345;et&#237; generace na va&#345;en&#233; strav&#283; dosahovala t&#233;m&#283;&#345; 100 %. Zahrnovaly k&#253;ch&#225;n&#237;, sv&#283;d&#283;n&#237; a astma. Alergie na ml&#233;ko byly b&#283;&#382;n&#233; u deficientn&#237;ch zv&#237;&#345;at, ale zmizely, jakmile bylo ml&#233;ko ze stravy vy&#345;azeno.</p></li><li><p><strong>&#352;t&#237;tn&#225; &#382;l&#225;za:</strong> U ko&#357;at narozen&#253;ch deficientn&#237;m matk&#225;m byla diagnostikov&#225;na hypotyre&#243;za, projevuj&#237;c&#237; se malou lebkou, retardovan&#253;m v&#253;vojem obli&#269;eje a nekvalitn&#237;mi svaly, chrupavkami a org&#225;ny.</p></li><li><p><strong>Org&#225;nov&#225; atrofie:</strong> Pitvy odhalily atrofii jater, varlat a vaje&#269;n&#237;k&#367;, z&#225;n&#283;ty ledvin a nervov&#233;ho syst&#233;mu (v&#269;etn&#283; meningitidy).</p></li></ul><p><strong>Regenerace a mezigenera&#269;n&#237; obnova</strong></p><p>Pokud byla deficientn&#237; zv&#237;&#345;ata vr&#225;cena na syrovou stravu, do&#353;lo k postupn&#233;mu zlep&#353;en&#237;:</p><ul><li><p>Prvn&#237; generace regeneruj&#237;c&#237;ch ko&#357;at vykazovala zlep&#353;en&#237; odolnosti v&#367;&#269;i nemocem, ale kostern&#237; zm&#283;ny p&#345;etrv&#225;valy.</p></li><li><p>&#218;pln&#233; obnoven&#237; norm&#225;ln&#237;ho v&#253;voje lebky a zub&#367; trvalo &#269;asto a&#382; <strong>&#269;ty&#345;i generace</strong>.</p></li><li><p>Kritick&#253; poznatek: Pokud byla samice krmena deficientn&#237; stravou po dobu 12 a&#382; 18 m&#283;s&#237;c&#367;, jej&#237; schopnost porodit zcela norm&#225;ln&#237; ko&#357;ata byla trvale po&#353;kozena, i kdy&#382; byla n&#225;sledn&#283; krmena optim&#225;ln&#283;.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!YxHU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1cd2b1e0-f1d4-41a6-b24d-54fdce25b974_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" 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zv&#237;&#345;at:</p><ul><li><p><strong>Skot:</strong> Kr&#225;vy krmen&#233; na pastv&#283; (zelen&#225; p&#237;ce) m&#283;ly v ml&#233;ce vy&#353;&#353;&#237; koncentraci r&#367;stov&#253;ch faktor&#367; ne&#382; kr&#225;vy na such&#233;m krmivu.</p></li><li><p><strong>Dr&#367;be&#382;:</strong> Ku&#345;ata z farem (p&#345;irozen&#225; strava) m&#283;la pevn&#283;j&#353;&#237; kosti (dvojn&#225;sobek v&#225;pn&#237;ku) ne&#382; ku&#345;ata z l&#237;hn&#237; na such&#253;ch sm&#283;s&#237;ch.</p></li><li><p><strong>Mor&#269;ata:</strong> Krmen&#237; polosuchou tr&#225;vou, kter&#225; se cestou v pytl&#237;ch zapa&#345;ila a &#8220;pova&#345;ila&#8221;, vedlo k vypad&#225;v&#225;n&#237; srsti a paral&#253;ze. Okam&#382;it&#233; zlep&#353;en&#237; nastalo po zaveden&#237; &#269;erstv&#283; posekan&#233; tr&#225;vy a pobytu na slunci.</p></li></ul><p>Proces va&#345;en&#237; a tepeln&#233;ho zpracov&#225;n&#237; ni&#269;&#237; nebo znehodnocuje <strong>termolabiln&#237; faktory</strong> (enzymy, vitam&#237;ny C a B, rozpustnost miner&#225;l&#367;), kter&#233; jsou nezbytn&#233; pro zdrav&#253; v&#253;voj savc&#367;. Tyto nutri&#269;n&#237; nedostatky se kumuluj&#237; nap&#345;&#237;&#269; generacemi a vedou k definitivn&#237;mu biologick&#233;mu &#250;padku druhu. Pokud jsou v&#253;sledky u ko&#269;ek aplikovateln&#233; na &#269;lov&#283;ka, p&#345;edstavuje nutri&#269;n&#283; zp&#367;soben&#225; degenerace z&#225;sadn&#237; v&#253;zvu pro sou&#269;asnou a budouc&#237; generace.</p><p><strong>Lidsk&#225; v&#253;&#382;iva a dopady nutri&#269;n&#237; degradace</strong></p><p>Pr&#225;ce Dr. Pottengera v oblasti lidsk&#233; v&#253;&#382;ivy vych&#225;z&#237; z p&#345;edpokladu, &#382;e lid&#233; a ko&#269;ky sd&#237;lej&#237; jako sav&#269;&#237; syst&#233;my analogick&#233; biologick&#233; reakce na nutri&#269;n&#237; nedostatky. Hlavn&#237;m zji&#353;t&#283;n&#237;m je, &#382;e degradace zp&#367;soben&#225; tepeln&#283; upravenou stravou (zejm&#233;na ml&#233;kem) a absenc&#237; kojen&#237; vede u lid&#237; k podobn&#253;m degenerativn&#237;m zm&#283;n&#225;m, jak&#233; byly pozorov&#225;ny v kontrolovan&#253;ch experimentech u ko&#269;ek.</p><p><strong>Kl&#237;&#269;ov&#233; z&#225;v&#283;ry:</strong></p><ul><li><p><strong>Struktur&#225;ln&#237; integrita:</strong> Existuje p&#345;&#237;m&#225; korelace mezi kojen&#237;m a spr&#225;vn&#253;m v&#253;vojem l&#237;cn&#237;ch kost&#237; (malar growth), co&#382; je z&#225;sadn&#237; pro formov&#225;n&#237; obli&#269;eje a zubn&#237; oblouky.</p></li><li><p><strong>Kvalita ml&#233;ka:</strong> Syrov&#233; ml&#233;ko je identifikov&#225;no jako nutri&#269;n&#283; nad&#345;azen&#233; tepeln&#283; upraven&#233;mu ml&#233;ku v kontextu v&#253;voje skeletu a prevence chronick&#253;ch onemocn&#283;n&#237;.</p></li><li><p><strong>Transgenera&#269;n&#237; dopad:</strong> Nutri&#269;n&#237; naru&#353;en&#237; v prenat&#225;ln&#237;m a postnat&#225;ln&#237;m obdob&#237; m&#225; trval&#233; n&#225;sledky na hustotu kost&#237; a schopnost dosp&#283;l&#233;ho jedince zvl&#225;dat stres.</p></li><li><p><strong>Civiliza&#269;n&#237; choroby:</strong> Nedostatky ve v&#253;&#382;iv&#283; jsou p&#345;&#237;mo spojeny s n&#225;r&#367;stem alergi&#237;, artritidy a dent&#225;ln&#237;ch patologi&#237; v modern&#237; spole&#269;nosti.</p></li></ul><div><hr></div><p><strong>Kojen&#237; a v&#253;voj obli&#269;eje</strong></p><p>V&#253;zkum se podrobn&#283; zab&#253;v&#225; srovn&#225;n&#237;m v&#253;voje obli&#269;eje u kojen&#253;ch kojenc&#367; a d&#283;t&#237; &#382;iven&#253;ch z l&#225;hve.</p><ul><li><p><strong>R&#367;st l&#237;cn&#237;ch kost&#237; (Malar Growth):</strong> Prokazuje statisticky v&#253;znamnou korelaci mezi p&#345;irozen&#253;m kojen&#237;m a pln&#253;m rozvojem l&#237;cn&#237;ch struktur.</p></li><li><p><strong>V&#283;kov&#233; skupiny:</strong> Pozorov&#225;n&#237; byla rozd&#283;lena na d&#283;ti do 12 let a v&#283;kovou skupinu 12 a&#382; 25 let, p&#345;i&#269;em&#382; v obou p&#345;&#237;padech byla potvrzena superiorita p&#345;irozen&#233; v&#253;&#382;ivy pro spr&#225;vnou formaci obli&#269;ejov&#233;ho skeletu.</p></li><li><p><strong>Dentofaci&#225;ln&#237; anom&#225;lie:</strong> Nedostate&#269;n&#253; v&#253;voj l&#237;cn&#237;ch kost&#237; je spojen se z&#250;&#382;en&#237;m zubn&#237;ch oblouk&#367; a n&#225;sledn&#253;mi ortodontick&#253;mi probl&#233;my.</p></li></ul><p><strong>Klinick&#253; v&#253;znam syrov&#233;ho ml&#233;ka</strong></p><p>Dr. Pottenger p&#345;edkl&#225;d&#225; experiment&#225;ln&#237; a klinick&#233; d&#367;kazy o vysok&#233; biologick&#233; hodnot&#283; syrov&#233;ho ml&#233;ka.</p><ul><li><p><strong>P&#345;&#237;padov&#225; studie Randleigh Farm:</strong> Odkazuje na pr&#225;ci Oscara Erfa, kter&#225; potvrzuje nutri&#269;n&#237; v&#253;hody syrov&#253;ch ml&#233;&#269;n&#253;ch produkt&#367;.</p></li><li><p><strong>Prevence degenerativn&#237;ch stav&#367;:</strong> Syrov&#233; ml&#233;ko vykazuje ochrann&#233; faktory proti:</p><ul><li><p><strong>Vysok&#233;mu cholesterolu:</strong> Strava bohat&#225; na p&#345;irozen&#233; tuky v syrov&#233;m stavu paradoxn&#283; pom&#225;h&#225; regulovat metabolismus lipid&#367;.</p></li><li><p><strong>Z&#225;n&#283;tliv&#253;m onemocn&#283;n&#237;m:</strong> Pozitivn&#237; vliv byl zaznamen&#225;n u pacient&#367; s artritidou a parodont&#243;zou.</p></li><li><p><strong>Alergi&#237;m:</strong> Syrov&#233; ml&#233;ko nezp&#367;sobuje senzibilizaci organismu v takov&#233; m&#237;&#345;e jako ml&#233;ko tepeln&#283; upraven&#233;.</p></li></ul></li></ul><p><strong>Ml&#233;ko a lidsk&#253; skelet</strong></p><p>Anal&#253;za se zam&#283;&#345;uje na proces kalcifikace a hustotu kost&#237; v z&#225;vislosti na typu konzumovan&#233;ho ml&#233;ka.</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Es32!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 424w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 848w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Es32!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png" width="754" height="234" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/ed10a607-0214-44c7-8e55-7aea625607cc_754x234.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:234,&quot;width&quot;:754,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:39516,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/205470896?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 424w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 848w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Es32!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fed10a607-0214-44c7-8e55-7aea625607cc_754x234.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><ul><li><p><strong>Srovn&#225;vac&#237; RTG studie:</strong> Rentgenov&#233; sn&#237;mky prokazuj&#237;, &#382;e kvalita ml&#233;ka p&#345;&#237;mo ovliv&#328;uje hustotu a pevnost lidsk&#253;ch kost&#237; ji&#382; od d&#283;tstv&#237;.</p></li></ul><p><strong>Nutri&#269;n&#237; naru&#353;en&#237; a v&#253;voj pod stresem</strong></p><p>Tato &#269;&#225;st zkoum&#225;, jak naru&#353;en&#225; v&#253;&#382;iva ovliv&#328;uje kosti vyv&#237;jej&#237;c&#237; se v z&#225;t&#283;&#382;ov&#253;ch podm&#237;nk&#225;ch.</p><ul><li><p><strong>Prenat&#225;ln&#237; a postnat&#225;ln&#237; vlivy:</strong> Kvalita v&#253;&#382;ivy matky b&#283;hem t&#283;hotenstv&#237; a kvalita stravy d&#237;t&#283;te po narozen&#237; jsou ur&#269;uj&#237;c&#237;mi faktory pro budouc&#237; zdrav&#237;.</p></li><li><p><strong>Zvl&#225;d&#225;n&#237; stresu:</strong> Pr&#225;ce Harveyho E. Billiga, Jr. zd&#367;raz&#328;uje korelaci mezi kvalitou d&#283;tsk&#233; v&#253;&#382;ivy a schopnost&#237; dosp&#283;l&#233;ho jedince fyziologicky zvl&#225;dat stresov&#233; faktory.</p></li><li><p><strong>Nutri&#269;n&#237; principy:</strong> Stabiln&#237; v&#253;voj vy&#382;aduje p&#345;&#237;tomnost termolabiln&#237;ch (teplem ni&#269;en&#253;ch) faktor&#367;, kter&#233; jsou v modern&#237; strav&#283; &#269;asto eliminov&#225;ny pr&#367;myslov&#253;m zpracov&#225;n&#237;m.</p></li></ul><div><hr></div><p><strong>Kl&#237;&#269;ov&#233; z&#225;v&#283;ry</strong></p><p>Anal&#253;za lidsk&#233; populace potvrzuje paralely s &#8220;ko&#269;i&#269;&#237; studi&#237;&#8221;:</p><ul><li><p><strong>Struktur&#225;ln&#237; degenerace:</strong> Lid&#233;, kte&#345;&#237; opustili tradi&#269;n&#237; (pr&#367;myslov&#283; nezpracovan&#233;) potraviny, vykazuj&#237; stejn&#233; zn&#225;mky fyzick&#233;ho &#250;padku jako ko&#269;ky na deficitn&#237; diet&#283;.</p></li><li><p><strong>Role tepeln&#233;ho zpracov&#225;n&#237;:</strong> Teplo ni&#269;&#237; vit&#225;ln&#237; &#8220;&#382;iv&#233; faktory&#8221; v ml&#233;ce a mase, co&#382; vede k rozvoji chronick&#253;ch onemocn&#283;n&#237;, kter&#225; byla d&#345;&#237;ve vz&#225;cn&#225;.</p></li><li><p><strong>Preventivn&#237; medic&#237;na:</strong> Pr&#225;ce Dr. Pottengera nab&#237;z&#237; vhled do p&#345;&#237;&#269;in civiliza&#269;n&#237;ch chorob, kter&#233; jsou preventabiln&#237; skrze n&#225;vrat k nutri&#269;n&#283; bohat&#253;m, minim&#225;ln&#283; zpracovan&#253;m potravin&#225;m.</p></li></ul><p>Dr. Francis M. Pottenger se d&#225;le zam&#283;&#345;uje na &#353;ir&#353;&#237; ekologick&#233; a dietetick&#233; souvislosti v&#253;&#382;ivy. Jeho anal&#253;za vych&#225;z&#237; z konceptu vz&#225;jemn&#233;ho propojen&#237; zdrav&#237; p&#367;dy, rostlin, zv&#237;&#345;at a lid&#237; a definuje principy optim&#225;ln&#237; lidsk&#233; stravy zalo&#382;en&#233; na v&#283;deck&#253;ch pozorov&#225;n&#237;ch.</p><p>Kl&#237;&#269;ov&#253;m poznatkem je existence <strong>recipro&#269;n&#237;ho vztahu</strong> mezi kvalitou p&#367;dy a zdrav&#237;m organism&#367;, kter&#233; z t&#233;to p&#367;dy &#269;erpaj&#237; &#382;iviny. Prost&#345;ednictv&#237;m experiment&#367; s p&#283;stov&#225;n&#237;m fazol&#237; v p&#367;d&#283; hnojen&#233; exkrementy ko&#269;ek s r&#367;zn&#253;mi typy diet bylo prok&#225;z&#225;no, &#382;e nutri&#269;n&#237; hodnota odpadn&#237;ch l&#225;tek p&#345;&#237;mo ovliv&#328;uje r&#367;st a kvalitu rostlinn&#233; produkce. Dokument d&#225;le identifikuje z&#225;sadn&#237; roli syrov&#253;ch potravin, specifick&#253;ch tuk&#367; a &#382;elatiny p&#345;i podpo&#345;e tr&#225;ven&#237; a prevenci degenerativn&#237;ch onemocn&#283;n&#237;. V&#253;sledkem je definice &#8222;Vysoce ochrann&#233; diety&#8220;, kter&#225; poskytuje praktick&#253; r&#225;mec pro dosa&#382;en&#237; optim&#225;ln&#237;ho zdrav&#237; prost&#345;ednictv&#237;m specifick&#253;ch stravovac&#237;ch vzorc&#367; a v&#253;b&#283;ru potravin bohat&#253;ch na &#382;iviny.</p><div><hr></div><p><strong>Recipro&#269;n&#237; vztah: P&#367;da, rostliny a zv&#237;&#345;ata</strong></p><p>Centr&#225;ln&#237;m t&#233;matem je prov&#225;zanost biologick&#233;ho &#345;et&#283;zce. Pottenger dokl&#225;d&#225;, &#382;e zdrav&#237; nen&#237; izolovan&#253; stav, ale v&#253;sledek cyklu &#382;ivin za&#269;&#237;naj&#237;c&#237;ho v p&#367;d&#283;.</p><p><strong>Experiment s fazolemi (1939&#8211;1940)</strong></p><p>Tento experiment slou&#382;&#237; jako prim&#225;rn&#237; d&#367;kaz pro vliv &#382;ivo&#269;i&#353;n&#233; v&#253;&#382;ivy na ekosyst&#233;m.</p><ul><li><p><strong>Metodika:</strong> Fazole byly vysazov&#225;ny p&#345;&#237;mo do v&#253;b&#283;h&#367; experiment&#225;ln&#237;ch ko&#269;ek, &#269;&#237;m&#382; byly vystaveny vlivu exkrement&#367; zv&#237;&#345;at krmen&#253;ch bu&#271; optim&#225;ln&#237; stravou (syrov&#233; maso a ml&#233;ko), nebo stravou deficitn&#237; (va&#345;en&#233; maso, pasterizovan&#233;/zpracovan&#233; ml&#233;ko).</p></li><li><p><strong>Rozsah anal&#253;zy:</strong> V&#253;zkum zahrnoval detailn&#237; sledov&#225;n&#237; n&#283;kolika f&#225;z&#237;:</p><ul><li><p>Anal&#253;za prvn&#237; generace fazol&#237;.</p></li><li><p>Anal&#253;za druh&#233; generace fazol&#237;.</p></li><li><p>Anal&#253;za cel&#253;ch rostlin a lusk&#367; druh&#233; generace.</p></li></ul></li><li><p><strong>Z&#225;v&#283;ry:</strong> Kvalita hnojen&#237; (derivovan&#225; z diety zv&#237;&#345;at) ur&#269;uje chemick&#233; slo&#382;en&#237; a vitalitu rostlin. Tento proces uzav&#237;r&#225; biologick&#253; kruh, kde zdrav&#237; zv&#237;&#345;ete ovliv&#328;uje p&#367;du, kter&#225; n&#225;sledn&#283; ur&#269;uje nutri&#269;n&#237; hodnotu rostlin pro dal&#353;&#237; generace.</p></li></ul><div><hr></div><p><strong>Nutri&#269;n&#237; principy a modern&#237; m&#253;ty</strong></p><p>Pottenger podrobuje kritice tehdej&#353;&#237; modern&#237; trendy a definuje z&#225;klady skute&#269;n&#233; v&#253;&#382;ivy.</p><ul><li><p><strong>M&#243;dn&#237; diety versus optim&#225;ln&#237; v&#253;&#382;iva:</strong> Rozli&#353;uje mezi kr&#225;tkodob&#253;mi trendy a biologick&#253;mi po&#382;adavky t&#283;la. Optim&#225;ln&#237; v&#253;&#382;iva mus&#237; respektovat historicky prov&#283;&#345;en&#233; zdroje &#382;ivin.</p></li><li><p><strong>V&#253;znam tuk&#367;:</strong> Anal&#253;za se zam&#283;&#345;uje na rozd&#237;ly mezi nasycen&#253;mi a nenasycen&#253;mi tuky a jejich specifickou roli v metabolismu.</p></li><li><p><strong>Syrov&#225; strava a &#382;elatina:</strong></p><ul><li><p>Zd&#367;raz&#328;uje se hodnota syrov&#253;ch potravin pro zachov&#225;n&#237; teplem ni&#269;en&#253;ch faktor&#367;.</p></li><li><p>&#381;elatiny je vyu&#382;&#237;v&#225;no jako kl&#237;&#269;ov&#233;ho prvku pro podporu efektivity tr&#225;ven&#237;.</p></li></ul></li></ul><div><hr></div><p><strong>Vysoce ochrann&#225; dieta (The High Protective Diet)</strong></p><p><strong>Dietn&#237; vzorce</strong></p><p>Dokument definuje specifick&#233; struktury pro jednotliv&#225; j&#237;dla dne:</p><ul><li><p><strong>Sn&#237;da&#328;ov&#253; vzorec:</strong> Zam&#283;&#345;en&#237; na nastartov&#225;n&#237; metabolismu.</p></li><li><p><strong>Ob&#283;dov&#253; a ve&#269;ern&#237; vzorec:</strong> Vyv&#225;&#382;en&#233; kombinace b&#237;lkovin a ochrann&#253;ch faktor&#367;.</p></li></ul><p><strong>Doporu&#269;en&#233; kategorie potravin a jejich v&#253;znam</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!-XVh!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 424w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 848w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 1272w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!-XVh!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png" width="723" height="326" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:326,&quot;width&quot;:723,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:52310,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/205470896?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 424w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 848w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 1272w, /__u/substackcdn.com/image/fetch/$s_!-XVh!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a8354a2-cb1f-4785-b4a8-24731a887d99_723x326.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Terapeutick&#233; recepty</strong></p><p>Sou&#269;&#225;st&#237; ochrann&#233; diety jsou specifick&#233; receptury navr&#382;en&#233; k &#345;e&#353;en&#237; nutri&#269;n&#237;ch deficit&#367;:</p><ul><li><p><strong>Recept A:</strong> &#381;elatina (podpora tr&#225;ven&#237;).</p></li><li><p><strong>Recept B &amp; C:</strong> &#218;prava jater a mozku pro maxim&#225;ln&#237; vyu&#382;it&#237; nutrient&#367;.</p></li><li><p><strong>Recept D &amp; E:</strong> &#268;erstv&#233; mlet&#233; hov&#283;z&#237; maso (zachov&#225;n&#237; syrov&#253;ch faktor&#367;).</p></li><li><p><strong>Recept F:</strong> Pol&#233;vky jako koncentrovan&#253; zdroj miner&#225;l&#367;.</p></li><li><p><strong>Recept G:</strong> Techniky kl&#237;&#269;en&#237; semen.</p></li></ul><div><hr></div><p><strong>Z&#225;v&#283;ry pro lidsk&#233; zdrav&#237;</strong></p><ol><li><p><strong>Interaktivita prost&#345;ed&#237;:</strong> Lidsk&#233; zdrav&#237; nelze odd&#283;lit od kvality zem&#283;d&#283;lstv&#237; a zpracov&#225;n&#237; p&#367;dy.</p></li><li><p><strong>Ochrana termolabiln&#237;ch prvk&#367;:</strong> Va&#345;en&#237; a tepeln&#233; zpracov&#225;n&#237; (nap&#345;. pasterizace ml&#233;ka) m&#283;n&#237; fyziochemick&#253; stav potravin, &#269;in&#237; miner&#225;ly m&#233;n&#283; rozpustn&#253;mi a ni&#269;&#237; enzymy a vitam&#237;ny.</p></li><li><p><strong>Prevence jako c&#237;l:</strong> Vysoce ochrann&#225; dieta nen&#237; pouze l&#233;&#269;ebn&#253;m n&#225;strojem, ale p&#345;edev&#353;&#237;m preventivn&#237;m opat&#345;en&#237;m proti &#8222;nutri&#269;n&#283; zp&#367;soben&#233; degeneraci&#8220;, kter&#225; by se jinak mohla p&#345;en&#225;&#353;et na dal&#353;&#237; generace.</p></li></ol><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!KLZB!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 424w, /__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 848w, /__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:627,&quot;width&quot;:1157,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1197093,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/205470896?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 424w, /__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 848w, /__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 1272w, /__u/substackcdn.com/image/fetch/$s_!KLZB!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd6211df4-718d-482d-a505-6aff8fa2906e_1157x627.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje:</p><p>Pottenger, Francis M., Jr. <em>Pottenger's Cats: A Study in Nutrition</em>. Price-Pottenger Nutrition Foundation, 1983.</p>]]></content:encoded></item><item><title><![CDATA[Kombinovaná terapie melatoninem, léčebným konopím a kyslíko-ozonovou terapií u glioblastomu multiforme]]></title><description><![CDATA[P&#345;&#237;padov&#225; studie vyl&#233;&#269;en&#237; GBM]]></description><link>https://zdeneksipek.substack.com/p/kombinovana-terapie-melatoninem-lecebnym</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/kombinovana-terapie-melatoninem-lecebnym</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Mon, 13 Jul 2026 14:12:16 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!wVX2!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!wVX2!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!wVX2!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!wVX2!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!wVX2!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!wVX2!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!wVX2!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c0dace5-4830-4bda-9650-ab04e25ac504_2752x1536.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tento stru&#269;n&#253; &#269;l&#225;nek shrnuje p&#345;&#237;padovou studii pacientky s glioblastomem (GBM), nejagresivn&#283;j&#353;&#237;m typem mozkov&#233;ho n&#225;doru, u kter&#233; do&#353;lo k &#250;pln&#233; a trval&#233; remisi onemocn&#283;n&#237;. Pot&#233;, co pacientka po &#269;&#225;ste&#269;n&#233; chirurgick&#233; resekci odm&#237;tla standardn&#237; chemoterapii (temozolomid) kv&#367;li z&#225;va&#382;n&#253;m vedlej&#353;&#237;m &#250;&#269;ink&#367;m, podstoupila netradi&#269;n&#237; l&#233;&#269;ebn&#253; protokol. Ten zahrnoval kombinaci <strong>kysl&#237;ko-ozonov&#233; terapie (O2O3), vysok&#253;ch d&#225;vek melatoninu a l&#233;&#269;ebn&#233;ho konop&#237;</strong> (produkty Bedrocan a Bedrolite). Sedm let po stanoven&#237; diagn&#243;zy, kter&#225; m&#225; obvykle medi&#225;n p&#345;e&#382;it&#237; pouze 15 m&#283;s&#237;c&#367;, z&#367;st&#225;v&#225; pacientka na&#382;ivu a je pova&#382;ov&#225;na za zcela vyl&#233;&#269;enou. Tento v&#253;sledek nazna&#269;uje potenci&#225;l pro budouc&#237; v&#253;zkum v oblasti adjuvantn&#237; terapie GBM.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>Charakteristika onemocn&#283;n&#237; a standardn&#237; p&#233;&#269;e</strong></p><p>Glioblastoma multiforme (GBM) p&#345;edstavuje z&#225;va&#382;nou medic&#237;nskou v&#253;zvu z n&#225;sleduj&#237;c&#237;ch d&#367;vod&#367;:</p><ul><li><p><strong>Agresivita:</strong> Podle WHO jde o gliom IV. stupn&#283;. Tvo&#345;&#237; 48,6 % prim&#225;rn&#237;ch malign&#237;ch n&#225;dor&#367; mozku.</p></li><li><p><strong>Progn&#243;za:</strong> Medi&#225;n p&#345;e&#382;it&#237; je 15 m&#283;s&#237;c&#367;. M&#237;ra p&#283;tilet&#233;ho p&#345;e&#382;it&#237; je pouze 7,2 %.</p></li><li><p><strong>Standardn&#237; protokol (od roku 2005):</strong> Chirurgick&#225; resekce n&#225;sledovan&#225; radioterapi&#237; (RT) a soub&#283;&#382;nou chemoterapi&#237; temozolomidem (TMZ), co&#382; je nespecifick&#233; alkyla&#269;n&#237; &#269;inidlo zp&#367;sobuj&#237;c&#237; po&#353;kozen&#237; DNA n&#225;dorov&#253;ch bun&#283;k.</p></li></ul><p><strong>Anal&#253;za p&#345;&#237;padu</strong></p><p><strong>Klinick&#253; n&#225;lez a diagn&#243;za</strong></p><ul><li><p><strong>Pacientka:</strong> 36let&#225; &#382;ena, hospitalizov&#225;na v srpnu 2016 po 15 dnech nereaguj&#237;c&#237;ch bolest&#237; hlavy.</p></li><li><p><strong>N&#225;lez (CT):</strong> Dva objemn&#233; &#250;tvary v lev&#233; fronto-pariet&#225;ln&#237; oblasti (52 &#215; 41 mm a 40 &#215; 20 mm) s nekrotick&#253;mi oblastmi a posunem st&#345;edov&#253;ch struktur o 1 cm.</p></li><li><p><strong>Histologie:</strong> Vysoce proliferuj&#237;c&#237; bun&#283;&#269;n&#233; elementy (index MIB-1 70 %), metylovan&#253; MGMT, IDH-1 wild type. Diagn&#243;za: GBM s nep&#345;&#237;znivou progn&#243;zou.</p></li></ul><p><strong>Pr&#367;b&#283;h konven&#269;n&#237; l&#233;&#269;by</strong></p><ol><li><p><strong>Chirurgie:</strong> &#268;&#225;ste&#269;n&#233; odstran&#283;n&#237; n&#225;doru (24. srpna 2016). Poopera&#269;n&#237; CT uk&#225;zalo rezidu&#225;ln&#237; pevn&#233; lo&#382;isko o velikosti 2 cm.</p></li><li><p><strong>Radioterapie:</strong> 59,4 Gy ve 33 frakc&#237;ch.</p></li><li><p><strong>Chemoterapie:</strong> Zah&#225;jen prvn&#237; cyklus TMZ (120 mg denn&#283;), kter&#253; v&#353;ak pacientka n&#225;sledn&#283; ukon&#269;ila kv&#367;li trombocytopenii a subjektivn&#283; nesnesiteln&#253;m vedlej&#353;&#237;m &#250;&#269;ink&#367;m.</p></li></ol><p><strong>Netradi&#269;n&#237; l&#233;&#269;ebn&#253; protokol</strong></p><p>V listopadu 2016 pacientka zah&#225;jila integrovanou terapii sest&#225;vaj&#237;c&#237; ze t&#345;&#237; slo&#382;ek:</p><p><strong>A. Kysl&#237;ko-ozonov&#225; terapie (O2O3)</strong></p><p><strong>B. Melatonin (MLT)</strong></p><p><strong>C. L&#233;&#269;ebn&#233; konop&#237;</strong></p><p>Vyu&#382;ity byly dva standardizovan&#233; produkty s odli&#353;n&#253;m pom&#283;rem kanabinoid&#367;:</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!6Sc6!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 424w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 848w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 1272w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!6Sc6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png" width="613" height="127" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:127,&quot;width&quot;:613,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:20971,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/206844590?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 424w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 848w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 1272w, /__u/substackcdn.com/image/fetch/$s_!6Sc6!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd2062c51-24ff-41ca-9684-d3b584b7b5c3_613x127.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p><strong>Terapie <span>O2O3</span></strong> spo&#269;&#237;vala v rekt&#225;ln&#237;m pod&#225;v&#225;n&#237; O2O3 (97 % kysl&#237;ku, 3 % ozonu) v objemu <strong>2,5 ml/kg</strong> o koncentraci <strong>80 &#181;g/ml</strong>, a to <strong>ve 2 denn&#237;ch d&#225;vk&#225;ch</strong> (v intervalu &#353;esti hodin) po dobu 4 po sob&#283; n&#225;sleduj&#237;c&#237;ch dn&#367; v t&#253;dnu b&#283;hem prvn&#237;ho m&#283;s&#237;ce. P&#225;t&#253; den byl proveden kontroln&#237; krevn&#237; obraz a na konci m&#283;s&#237;ce kompletn&#237; biochemick&#233; vy&#353;et&#345;en&#237;. V n&#225;sleduj&#237;c&#237;ch 2 m&#283;s&#237;c&#237;ch l&#233;&#269;ba zahrnovala jednu denn&#237; d&#225;vku po dobu 4 po sob&#283; n&#225;sleduj&#237;c&#237;ch dn&#367; v t&#253;dnu. Po ukon&#269;en&#237; prvn&#237;ch 3 m&#283;s&#237;c&#367; terapie <span>O2O3</span> pacientka l&#233;&#269;bu na 3 m&#283;s&#237;ce p&#345;eru&#353;ila. Terapie byla pot&#233; znovu zah&#225;jena a udr&#382;ov&#225;na a&#382; do dne&#353;n&#237;ho dne, p&#345;i&#269;em&#382; t&#253;denn&#237; cykly byly zredukov&#225;ny ze &#269;ty&#345; na dva a st&#345;&#237;daly se 3 m&#283;s&#237;ce l&#233;&#269;by s 3 m&#283;s&#237;ci pauzy.</p><p><strong>MLT (melatonin)</strong> byl zpo&#269;&#225;tku pod&#225;v&#225;n <em>per os</em> (&#250;sty) v d&#225;vce <strong>100 mg</strong> jednou denn&#283; a pot&#233; zvy&#353;ov&#225;n o 100 mg ka&#382;d&#233; 4 dny a&#382; do maxima <strong>2000 mg (2g)</strong>.</p><p>Pokud jde o <strong>l&#233;&#269;ebn&#233; konop&#237;</strong>, pacientka u&#382;&#237;vala po&#269;&#225;te&#269;n&#237; d&#225;vku <strong>50 mg</strong> p&#345;&#237;pravku Bedrolite <strong>&#269;ty&#345;ikr&#225;t denn&#283;</strong> (CBD 9 %, THC 0,4 %) a <strong>100 mg</strong> p&#345;&#237;pravku Bedrocan <strong>&#269;ty&#345;ikr&#225;t denn&#283;</strong> (THC 22 % a CBD &lt; 1,0 %). B&#283;hem prvn&#237;ch 2 let se tato d&#225;vka zv&#253;&#353;ila na 1&#8211;5 g denn&#283; u obou p&#345;&#237;pravk&#367;. Od roku 2019 byla l&#233;&#269;ba Bedrolitem zm&#283;n&#283;na na 100 mg &#269;ty&#345;ikr&#225;t denn&#283; b&#283;hem f&#225;ze pauzy v terapii <span>O2O3</span> a na 50 mg &#269;ty&#345;ikr&#225;t denn&#283; b&#283;hem prob&#237;haj&#237;c&#237; terapie <span>O2O3</span>.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!zM8v!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 424w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 848w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 1272w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!zM8v!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png" width="1155" height="631" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 424w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 848w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 1272w, /__u/substackcdn.com/image/fetch/$s_!zM8v!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0d43d67a-5d95-4203-a4b7-63354daec104_1155x631.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Dosa&#382;en&#233; v&#253;sledky</strong></p><p>V&#253;sledky l&#233;&#269;by jsou v kontextu GBM pova&#382;ov&#225;ny za v&#253;jime&#269;n&#233;:</p><ul><li><p><strong>Rychl&#225; remise:</strong> Ji&#382; po prvn&#237;m cyklu O2O3 terapie (&#250;nor 2017) nebyla rezidu&#225;ln&#237; 2cm n&#225;dorov&#225; masa na MRI patrn&#225;.</p></li><li><p><strong>Dlouhodob&#225; stabilita:</strong> Kontroln&#237; vy&#353;et&#345;en&#237; MRI v letech 2021 a 2022 potvrdila stabiln&#237; n&#225;lez bez recidivy n&#225;doru.</p></li><li><p><strong>Klinick&#253; stav:</strong> Pacientka je 7 let od diagn&#243;zy na&#382;ivu, bez progrese onemocn&#283;n&#237; a bez rozvoje vedlej&#353;&#237;ch &#250;&#269;ink&#367; spojen&#253;ch s touto netradi&#269;n&#237; terapi&#237;. Dokument ji uv&#225;d&#237; jako &#8220;zcela vyl&#233;&#269;enou&#8221;.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!sdlg!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!sdlg!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 424w, /__u/substackcdn.com/image/fetch/$s_!sdlg!, /__u/zdeneksipek.substack.com/w_848, 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/__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!sdlg!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png" width="1456" height="801" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 424w, /__u/substackcdn.com/image/fetch/$s_!sdlg!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 848w, /__u/substackcdn.com/image/fetch/$s_!sdlg!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 1272w, /__u/substackcdn.com/image/fetch/$s_!sdlg!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb8bd970f-01c9-4d28-a00f-af8c7281313d_4299x2365.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">(a) 21. srpna 2016, CT sn&#237;mek s kontrastn&#237; l&#225;tkou p&#345;ed operac&#237;. (b) 12. &#345;&#237;jna 2016, CT sn&#237;mek s kontrastn&#237; l&#225;tkou po &#269;&#225;ste&#269;n&#233;m odstran&#283;n&#237; (parci&#225;ln&#237; resekci) levostrann&#233;ho front&#225;ln&#237;ho multicentrick&#233;ho novotvaru (neoplazie). (c) 9. &#250;nora 2017, sn&#237;mek z magnetick&#233; rezonance (MRI), T1 sekvence s kontrastn&#237; l&#225;tkou po prvn&#237;m cyklu kysl&#237;kovo-ozonov&#233; terapie. (d) 12. &#269;ervence 2021, MRI sn&#237;mek, sekvence FLAIR. (e) 24. &#250;nora 2022, MRI sn&#237;mek, sekvence FLAIR. (f) 11. &#345;&#237;jna 2022, MRI sn&#237;mek, sekvence FLAIR. Po celkem 5 letech od &#269;&#225;ste&#269;n&#233;ho opera&#269;n&#237;ho odstran&#283;n&#237; (parci&#225;ln&#237; resekce) z&#367;stal morfologick&#253; obraz stabiln&#237; a pacientka byla pova&#382;ov&#225;n za vyl&#233;&#269;enou.</figcaption></figure></div><p><strong>Teoretick&#233; mechanismy &#250;&#269;inku</strong></p><p>Studie uv&#225;d&#237; v&#283;deck&#233; podklady pro pou&#382;it&#237; jednotliv&#253;ch slo&#382;ek:</p><ul><li><p><strong>Kanabinoidy:</strong> Interaguj&#237; s receptory CB1 a CB2 (vysoce exprimovan&#233; u GBM). Mechanismus zahrnuje indukci apopt&#243;zy n&#225;dorov&#253;ch bun&#283;k, inhibici bun&#283;&#269;n&#233; proliferace a blokov&#225;n&#237; angiogeneze a metast&#225;z.</p></li><li><p><strong>Melatonin:</strong> Vykazuje onkostatick&#233; p&#367;soben&#237;, stimuluje produkci cytokin&#367; (IL-2, IL-6, IL-12) a zvy&#353;uje imunitn&#237; odpov&#283;&#271; T-helper&#367;. P&#367;sob&#237; tak&#233; jako antioxidant sni&#382;uj&#237;c&#237; z&#225;n&#283;tlivou reakci. </p><p>To je v&#353;ak jen &#353;pi&#269;ka ledovce. Je t&#345;eba si uv&#283;domit, &#382;e melatonin je jednou z nejstar&#353;&#237;ch sign&#225;ln&#237;ch molekul na t&#233;to planet&#283; a spektrum jeho &#250;&#269;ink&#367; &#8211; a to i v p&#345;&#237;pad&#283; n&#225;dorov&#253;ch onemocn&#283;n&#237; &#8211; je mimo&#345;&#225;dn&#283; &#353;irok&#233;. Nam&#225;tkou jsou to nap&#345;&#237;klad dr&#225;hy AMPK, PI3K/AKT/mTOR, p53, IGF-1, STAT3, VEGF, c-MYC atd. V takto vysok&#253;ch d&#225;vk&#225;ch tak&#233; nezanedbateln&#253;m zp&#367;sobem blokuje jak glykol&#253;zu, tak glutaminol&#253;zu.</p></li><li><p><strong>Ozon (O2O3):</strong> P&#367;sob&#237; prost&#345;ednictv&#237;m modulace m&#237;rn&#233;ho oxidativn&#237;ho stresu (oxidativn&#237; prekondice), co&#382; chr&#225;n&#237; bu&#328;ky p&#345;ed po&#353;kozen&#237;m voln&#253;mi radik&#225;ly a podporuje antioxida&#269;n&#237; rovnov&#225;hu bun&#283;k. M&#367;&#382;e tak&#233; zvy&#353;ovat &#250;&#269;innost jin&#253;ch terapi&#237; a sni&#382;ovat jejich vedlej&#353;&#237; &#250;&#269;inky.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!rzNa!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 424w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 848w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 1272w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!rzNa!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png" width="1159" height="632" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 424w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 848w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 1272w, /__u/substackcdn.com/image/fetch/$s_!rzNa!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff1b0e77c-e483-47c9-b8b3-736210290743_1159x632.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Z&#225;v&#283;r a doporu&#269;en&#237;</strong></p><p>P&#345;edlo&#382;en&#225; kazuistika dokumentuje mimo&#345;&#225;dn&#253; &#250;sp&#283;ch l&#233;&#269;by GBM pomoc&#237; kombinace O2O3, melatoninu a kanabinoid&#367;. A&#269;koliv jde o ojedin&#283;l&#253; p&#345;&#237;pad a st&#225;vaj&#237;c&#237; v&#283;deck&#225; literatura je zat&#237;m nedostate&#269;n&#225; pro potvrzen&#237; obecn&#233; &#250;&#269;innosti tohoto celostn&#237;ho protokolu, v&#253;sledek (p&#345;e&#382;it&#237; 7 let vs. o&#269;ek&#225;van&#253;ch 15 m&#283;s&#237;c&#367;) je klinicky signifikantn&#237;.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje: </p><p><a href="https://www.mdpi.com/2571-841X/6/2/22"><span>Antonini M, Aguzzi C, Fanelli A, Frassineti A, Zeppa L, Morelli MB, Pastore G, Nabissi M, Luongo M. The Effects of a Combination of Medical Cannabis, Melatonin, and Oxygen&#8211;Ozone Therapy on Glioblastoma Multiforme: A Case Report. </span></a><em><a href="https://www.mdpi.com/2571-841X/6/2/22">Reports</a></em><a href="https://www.mdpi.com/2571-841X/6/2/22"><span>. 2023; 6(2):22. https://doi.org/10.3390/reports6020022</span></a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[Cílená metabolická terapie (TMT) v léčbě nádorů]]></title><description><![CDATA[Komplexn&#237; komplement&#225;tn&#237; strategie]]></description><link>https://zdeneksipek.substack.com/p/cilena-metabolicka-terapie-tmt-v</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/cilena-metabolicka-terapie-tmt-v</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 11 Jul 2026 12:11:05 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!jWLi!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!jWLi!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!jWLi!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!jWLi!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa3201e51-044a-4ce9-9fd5-fd114a8c5a20_2752x1536.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tento &#269;l&#225;nek p&#345;edstavuje relativn&#283; nekomplikovan&#233; shrnut&#237; z&#225;klad&#367; <strong>c&#237;len&#233; metabolick&#233; terapie (Targeted Metabolic Therapy &#8211; TMT)</strong>, co&#382; je komplexn&#237; terapeutick&#253; r&#225;mec vn&#237;maj&#237;c&#237; rakovinu nikoliv pouze jako genetickou poruchu, ale p&#345;edev&#353;&#237;m jako syst&#233;mov&#233; metabolick&#233; onemocn&#283;n&#237;. TMT je navr&#382;ena tak, aby sou&#269;asn&#283; zasahovala t&#345;i kl&#237;&#269;ov&#233; dom&#233;ny: vnit&#345;n&#237; metabolick&#233; dr&#225;hy n&#225;dorov&#253;ch bun&#283;k, podp&#367;rn&#233; mikroprost&#345;ed&#237; n&#225;doru a celkovou syst&#233;movou metabolickou dysfunkci hostitele.</p><p><strong>Maxim&#225;ln&#237; l&#233;&#269;ebn&#253; efekt lze o&#269;ek&#225;vat kombinac&#237; standardn&#237; l&#233;&#269;by a TMT.</strong></p><p>Hlavn&#237;m p&#345;&#237;nosem TMT je koordinovan&#253; tlak na v&#237;ce c&#237;l&#367; najednou, &#269;&#237;m&#382; se omezuje schopnost n&#225;doru adaptovat se a vytv&#225;&#345;et si rezistenci na l&#233;&#269;bu. Strategie integruje dietn&#237; opat&#345;en&#237; (ketogenn&#237; dieta, dieta imituj&#237;c&#237; p&#367;st, &#269;asov&#283; omezen&#233; stravov&#225;n&#237;), &#8220;repurposed&#8221; l&#233;ky (p&#367;vodn&#283; ur&#269;en&#233; pro jin&#233; indikace, nap&#345;. metformin, ivermektin), nutraceutika, vitam&#237;ny a &#250;pravy &#382;ivotn&#237;ho stylu. P&#345;esto&#382;e v&#283;t&#353;ina d&#367;kaz&#367; poch&#225;z&#237; z preklinick&#253;ch studi&#237;, TMT nab&#237;z&#237; slibn&#253; r&#225;mec pro zlep&#353;en&#237; citlivosti na konven&#269;n&#237; l&#233;&#269;bu a dosa&#382;en&#237; dlouhodob&#233; kontroly nebo ide&#225;ln&#283; eliminace onemocn&#283;n&#237;.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p><strong>1. Koncep&#269;n&#237; r&#225;mec: Rakovina jako metabolick&#233; onemocn&#283;n&#237;</strong></p><p>Standardn&#237; l&#233;&#269;ba se &#269;asto zam&#283;&#345;uj&#237; na izolovan&#233; onkogenn&#237; c&#237;le, co&#382; vede k aktivaci alternativn&#237;ch drah a l&#233;kov&#233; rezistenci. TMT vych&#225;z&#237; z poznatk&#367; Warburga a Seyfrieda, kter&#233; definuj&#237; rakovinu jako stav charakterizovan&#253; dysregulac&#237; metabolismu gluk&#243;zy a glutaminu.</p><p><strong>T&#345;i pil&#237;&#345;e progrese n&#225;doru (c&#237;le TMT):</strong></p><ol><li><p><strong>Vnit&#345;n&#237; metabolismus n&#225;dorov&#253;ch bun&#283;k:</strong> P&#345;eprogramov&#225;n&#237; energetick&#253;ch a sign&#225;ln&#237;ch s&#237;t&#237; (nap&#345;. Warburg&#367;v efekt).</p></li><li><p><strong>Mikroprost&#345;ed&#237; n&#225;doru (TME):</strong> Podm&#237;nky jako acid&#243;za, hypoxie a chronick&#253; z&#225;n&#283;t, kter&#233; chr&#225;n&#237; n&#225;dor a podporuj&#237; metast&#225;zov&#225;n&#237;.</p></li><li><p><strong>Syst&#233;mov&#225; dysfunkce hostitele:</strong> Hyperglyk&#233;mie, z&#225;n&#283;ty a nutri&#269;n&#237; deficity, kter&#233; vytv&#225;&#345;ej&#237; p&#345;&#237;zniv&#233; prost&#345;ed&#237; pro r&#367;st n&#225;doru.</p></li></ol><div><hr></div><p><strong>2. Kl&#237;&#269;ov&#233; vnit&#345;n&#237; metabolick&#233; a sign&#225;ln&#237; dr&#225;hy</strong></p><p>N&#225;dorov&#233; bu&#328;ky vyu&#382;&#237;vaj&#237; extr&#233;mn&#237; metabolickou plasticitu k zaji&#353;t&#283;n&#237; neust&#225;l&#233;ho p&#345;&#237;sunu &#382;ivin a ochrany p&#345;ed smrt&#237;.</p><ul><li><p><strong>Glykol&#253;za a Warburg&#367;v efekt:</strong> N&#225;dory spot&#345;ebov&#225;vaj&#237; 10&#8211;15&#215; v&#237;ce gluk&#243;zy ne&#382; norm&#225;ln&#237; bu&#328;ky. P&#345;em&#283;&#328;uj&#237; ji na lakt&#225;t i za p&#345;&#237;tomnosti kysl&#237;ku, co&#382; acidifikuje okoln&#237; mikroprost&#345;ed&#237; a potla&#269;uje imunitu.</p></li><li><p><strong>Glutaminol&#253;za:</strong> &#8220;Z&#225;vislost na glutaminu&#8221; poskytuje dus&#237;k a uhl&#237;k pro synt&#233;zu nukleotid&#367; a aminokyselin a dopl&#328;uje meziprodukty TCA cyklu. Je tak&#233; kl&#237;&#269;ov&#225; pro antioxida&#269;n&#237; obranu (glutathion).</p></li><li><p><strong>Angiogeneze a hypoxie:</strong> Nedostatek kysl&#237;ku stabilizuje faktor HIF-1&#945;, kter&#253; spou&#353;t&#237; tvorbu nov&#253;ch c&#233;v (VEGF) a zvy&#353;uje glykolytickou kapacitu.</p></li><li><p><strong>Rezistence v&#367;&#269;i apopt&#243;ze:</strong> N&#225;dory naru&#353;uj&#237; rovnov&#225;hu protein&#367; rodiny Bcl-2, &#269;&#237;m&#382; se vyh&#253;baj&#237; programovan&#233; bun&#283;&#269;n&#233; smrti.</p></li><li><p><strong>Osa IGF-1/PI3K-AKT-mTOR:</strong> Centr&#225;ln&#237; regul&#225;tor r&#367;stu aktivovan&#253; inzulinem a r&#367;stov&#253;mi faktory; podporuje anabolismus a potla&#269;uje autofagii.</p></li><li><p><strong>Dr&#225;ha Wnt/&#946;-catenin:</strong> &#344;&#237;d&#237; osud bun&#283;k a udr&#382;uje populaci n&#225;dorov&#253;ch kmenov&#253;ch bun&#283;k (CSC).</p></li></ul><div><hr></div><p><strong>3. Ovlada&#269;e progrese v mikroprost&#345;ed&#237; a u hostitele</strong></p><p><strong>N&#225;dorov&#233; mikroprost&#345;ed&#237;</strong></p><ul><li><p><strong>N&#225;dorov&#233; kmenov&#233; bu&#328;ky (CSC):</strong> Podskupina bun&#283;k odoln&#225; v&#367;&#269;i chemoterapii a radioterapii, zodpov&#283;dn&#225; za recidivu.</p></li><li><p><strong>Metastatick&#225; kask&#225;da:</strong> Podporov&#225;na lakt&#225;tem (invaze) a krevn&#237;mi desti&#269;kami (ochrana v ob&#283;hu). <strong>Galektin-3</strong> usnad&#328;uje adhezi k endotelu.</p></li><li><p><strong>Acid&#243;za:</strong> <strong>N&#237;zk&#233; pH</strong> zvy&#353;uje invazivitu aktivac&#237; prote&#225;z (matrixov&#233; metaloprotein&#225;zy - <strong>MMP</strong>, serinov&#233; prote&#225;zy - <strong>uPA</strong>, katepsiny cysteinov&#233; prote&#225;zy) a zhor&#353;uje funkci T-lymfocyt&#367; a NK bun&#283;k.</p></li></ul><p><strong>Syst&#233;mov&#233; faktory hostitele</strong></p><ul><li><p><strong>Hyperglyk&#233;mie a inzulinov&#225; rezistence:</strong> Vysok&#225; hladina gluk&#243;zy p&#345;&#237;mo syt&#237; n&#225;dor; inzulin aktivuje dr&#225;hu PI3K-AKT-mTOR.</p></li><li><p><strong>Chronick&#253; z&#225;n&#283;t:</strong> M&#283;&#345;iteln&#253; pomoc&#237; CRP a ESR; podporuje angiogenezi a tvorbu pre-metastatick&#253;ch nik.</p></li><li><p><strong>Abnorm&#225;ln&#237; krevn&#237; obraz:</strong> An&#233;mie zhor&#353;uje hypoxii n&#225;doru, trombocyt&#243;za chr&#225;n&#237; cirkuluj&#237;c&#237; n&#225;dorov&#233; bu&#328;ky a lymfopenie zna&#269;&#237; oslabenou imunitu.</p></li><li><p><strong>Kachexie:</strong> Metabolick&#253; syndrom charakterizovan&#253; ztr&#225;tou svalov&#233; hmoty, vyvolan&#253; syst&#233;mov&#253;mi z&#225;n&#283;tliv&#253;mi cytokiny (IL-6, TNF-&#945;).</p></li></ul><div><hr></div><p><strong>4. Interven&#269;n&#237; strategie TMT</strong></p><p>TMT integruje r&#367;zn&#233; kategorie intervenc&#237; pro vytvo&#345;en&#237; koordinovan&#233;ho tlaku.</p><p><strong>Dietn&#237; p&#345;&#237;stupy a p&#367;sty</strong></p><p>V&#253;b&#283;r diety z&#225;vis&#237; na typu a genetick&#233;m profilu n&#225;doru.</p><ul><li><p><strong>Ketogenn&#237; dieta (KD):</strong> Omezuje sacharidy, sni&#382;uje hladinu inzulinu a IGF-1, &#269;&#237;m&#382; tlum&#237; proliferaci.</p></li><li><p><strong>St&#345;edomo&#345;sk&#225; dieta s n&#237;zk&#253;m obsahem cukr&#367; a omezen&#253;m mno&#382;stv&#237;m &#382;ivo&#269;i&#353;n&#253;ch protein&#367;</strong> (p&#345;ev&#225;&#382;n&#283; z ryb).</p></li><li><p><strong>P&#345;eru&#353;ovan&#253; p&#367;st (IF - 16h denn&#283; okno bez j&#237;dla) a prodlou&#382;en&#253; p&#367;st (48&#8211;72h):</strong> Senzibilizuje n&#225;dory na l&#233;&#269;bu (diferenci&#225;ln&#237; stresov&#225; rezistence) a podporuje regeneraci imunitn&#237;ho syst&#233;mu.</p></li></ul><p><strong>Repurposed l&#233;ky (L&#233;ky s nov&#253;m c&#237;len&#237;m)</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!DPLI!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F00810857-d86c-450e-bf74-679c157642c7_1044x461.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!DPLI!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F00810857-d86c-450e-bf74-679c157642c7_1044x461.png 424w, /__u/substackcdn.com/image/fetch/$s_!DPLI!, /__u/zdeneksipek.substack.com/w_848, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06f56e05-bf1f-4e41-87af-5eff52744395_1037x466.png 424w, /__u/substackcdn.com/image/fetch/$s_!UzGk!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06f56e05-bf1f-4e41-87af-5eff52744395_1037x466.png 848w, /__u/substackcdn.com/image/fetch/$s_!UzGk!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F06f56e05-bf1f-4e41-87af-5eff52744395_1037x466.png 1272w, 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8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>D&#225;vkov&#225;n&#237; dle p&#345;&#237;balov&#233;ho let&#225;ku, respektive st&#225;dia choroby (<a href="/__u/zdeneksipek.substack.com/p/fenbendazol-a-jeho-potencialni-protinadorove">viz. p&#345;edchoz&#237; &#269;l&#225;nky</a>).</p><p>Syst&#233;mov&#233; a systematick&#233; nasazen&#237; <strong>itraconazolu</strong> by m&#283;lo b&#253;t zv&#225;&#382;eno zejm&#233;na v kontextu mo&#382;n&#233;ho rozvoje rakoviny v d&#367;sledku <a href="/__u/zdeneksipek.substack.com/p/rakovina-teorie-potlaceni-bunecnych">potla&#269;en&#237; bun&#283;&#269;n&#253;ch funkc&#237; oportunistick&#253;mi patogeny</a> (prim&#225;rn&#283; fung&#225;ln&#237;ho p&#367;vodu) a <a href="https://www.nature.com/articles/s41392-023-01334-6">fung&#225;ln&#237;ho mycobiomu jako nejnov&#283;j&#353;&#237;ho  charakteristick&#233;ho znaku rakoviny</a>.</p><p><strong>Nutraceutika a dopl&#328;ky</strong></p><ul><li><p><strong>Curcumin:</strong> 2000-4000 mg r&#225;no + 2000-4000 mg ve&#269;er. Potla&#269;uje NF-&#954;B z&#225;n&#283;tlivou signalizaci a glykolytick&#233; enzymy (LDH-A).</p></li><li><p><strong>Berberin: </strong>500 mg r&#225;no + 500 mg ve&#269;er.<strong> </strong>Aktivuje AMPK a zlep&#353;uje inzulinovou citlivost.</p></li><li><p><strong>Omega-3 MK: </strong>3000-4000 mg/den. Sni&#382;uj&#237; z&#225;n&#283;t a naru&#353;uj&#237; lipidov&#233; rafty v membr&#225;n&#225;ch n&#225;dorov&#253;ch bun&#283;k.</p></li><li><p><strong>Modifikovan&#253; citrusov&#253; pektin (MCP): </strong>10-15 g/den<strong>. </strong>Inhibuje galektin-3, &#269;&#237;m&#382; omezuje metast&#225;zov&#225;n&#237;.</p></li><li><p><strong>L&#233;&#269;iv&#233; houby (&#946;-glukany):</strong> <strong>Coriolus</strong>: 2000 mg/den. Aktivuj&#237; vrozenou imunitu (NK bu&#328;ky, makrof&#225;gy).</p></li></ul><p>Doporu&#269;en&#233; zna&#269;ky: <strong>Now Foods, Swanson, Mycomedica, BrainMarket, MCS Formulas.</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!KOAX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 424w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 848w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 1272w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!KOAX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png" width="1123" height="502" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 424w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 848w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 1272w, /__u/substackcdn.com/image/fetch/$s_!KOAX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4371820d-c312-495a-aa84-31b7dc908536_1123x502.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!_m_f!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 424w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 848w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 1272w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!_m_f!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png" width="1088" height="499" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 424w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 848w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 1272w, /__u/substackcdn.com/image/fetch/$s_!_m_f!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe5d62b2c-e78c-445c-8b5e-dad166840497_1088x499.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Vitam&#237;ny, miner&#225;ly a redoxn&#237; terapie</strong></p><ul><li><p><strong>Vitam&#237;n D3 + K2:</strong> Reguluje diferenciaci a posiluje protin&#225;dorovou imunitu.</p></li><li><p><strong>Zinek, Magnesium (Ho&#345;&#269;&#237;k), Boron a Selen:</strong> Kl&#237;&#269;ov&#233; pro opravu DNA (p53), podporu T-lymfocyt&#367; a antioxida&#269;n&#237; obranu.</p></li><li><p><strong><a href="https://www.sciencedirect.com/science/article/pii/S2667394026000213">Jedl&#225; soda (Bikarbon&#225;t sodn&#253;)</a>:</strong> Pufruje kyselost v mikroprost&#345;ed&#237; n&#225;doru, &#269;&#237;m&#382; omezuje invazi.</p></li><li><p><strong>Hyperbarick&#225; oxygenoterapie (HBOT):</strong> Zvy&#353;uje okysli&#269;en&#237;, &#269;&#237;m&#382; potla&#269;uje HIF-1&#945; a zvy&#353;uje citlivost na oxidativn&#237; stres.</p></li><li><p><strong>IVC</strong> (Intraven&#243;zn&#237;/infuzn&#237; Vitamin C)<strong>:</strong> Pod&#225;v&#225;n&#237; velmi vysok&#253;ch d&#225;vek kyseliny askorbov&#233; (zpravidla 15 a&#382; 75 gram&#367; i v&#237;ce na jednu infuzi). Ve vysok&#253;ch koncentrac&#237;ch se vitamin C st&#225;v&#225; pro-oxidativn&#237;m, kdy&#382; reaguje v mezibun&#283;&#269;n&#233;m prostoru s voln&#253;m &#382;elezem a m&#283;d&#237; za vzniku <strong>peroxidu vod&#237;ku</strong>. Zdrav&#233; bu&#328;ky maj&#237; dostatek enzymu katal&#225;zy, kter&#253; peroxid neutralizuje. Mnoho typ&#367; n&#225;dorov&#253;ch bun&#283;k (nap&#345;. s mutac&#237; genu <strong>KRAS</strong>) v&#353;ak tento enzym postr&#225;d&#225;, peroxid je po&#353;kod&#237; a dovede k apopt&#243;ze (bun&#283;&#269;n&#233; smrti).</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!vXiZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 424w, /__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 848w, /__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 1272w, /__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!vXiZ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png" width="1051" height="503" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 424w, /__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 848w, /__u/substackcdn.com/image/fetch/$s_!vXiZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F20048a5a-f406-4c38-b5c7-098feb6e9808_1051x503.png 1272w, 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8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!CrdI!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!CrdI!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png 424w, /__u/substackcdn.com/image/fetch/$s_!CrdI!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png 848w, /__u/substackcdn.com/image/fetch/$s_!CrdI!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png 1272w, /__u/substackcdn.com/image/fetch/$s_!CrdI!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!CrdI!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png" width="1067" height="492" 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/__u/substackcdn.com/image/fetch/$s_!CrdI!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9a6526d7-9728-4ccb-aa29-aa2a78499cf2_1067x492.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>5. Implementace a shrnut&#237; c&#237;l&#367;</strong></p><p>TMT nen&#237; pevn&#283; dan&#253; protokol, ale strukturovan&#253; r&#225;mec pro individu&#225;ln&#237; kombinace l&#233;&#269;iv a postup&#367;. <strong>V klinick&#233; praxi by m&#283;la b&#253;t TMT aplikov&#225;na jako dopln&#283;k ke standardn&#237; l&#233;&#269;b&#283; (imunoterapie, chemoterapie, radioterapie, chirurgie).</strong></p><p><strong>P&#345;ehled c&#237;len&#237; TMT </strong></p><ol><li><p><strong>R&#367;stov&#233; dr&#225;hy:</strong> <strong><a href="/__u/zdeneksipek.substack.com/p/glioblastoma-multiforme-ii">Ketogenn&#237; dieta</a></strong>, metformin a <strong>berberin</strong> c&#237;l&#237; na <strong>glykol&#253;zu</strong> a mTOR; <strong>EGCG</strong> (400 mg r&#225;no + 400 mg ve&#269;er) a vysokod&#225;vkov&#253; <strong>melatonin</strong> (20 - 200 mg) na <strong>glutaminol&#253;zu</strong>, <strong>ivermektin</strong> na <strong>Wnt/&#946;-catenin</strong>.</p></li><li><p><strong>Mikroprost&#345;ed&#237;:</strong> <strong>MCP</strong> a <strong>aspirin</strong> proti <strong>metast&#225;z&#225;m</strong>; <strong>bikarbon&#225;t</strong> a <strong>HBOT</strong> proti <strong>acid&#243;ze a hypoxii</strong>.</p><p>Regulaci mikroprost&#345;ed&#237; lze d&#225;le intenzifikovat pomoc&#237; c&#237;len&#237; na <strong>vnitrobun&#283;&#269;n&#233; okyselen&#237; rakovinn&#253;ch bun&#283;k</strong>, kter&#233; je shrnut&#233; v m&#233;m star&#353;&#237;m &#269;l&#225;nku <a href="https://krizekolaps.wordpress.com/2019/05/05/rakovina-metabolismus-metabloc-bunecne-ph-a-acidifikace-nadoru/">zde</a>.</p></li><li><p><strong>Hostitel:</strong> Cvi&#269;en&#237; a optimalizace sp&#225;nku pro n&#225;pravu cirkadi&#225;nn&#237;ch rytm&#367;; <strong>omega3</strong>, <strong>curcumin</strong> a p&#345;&#237;padn&#283; <strong>boswellia</strong> nebo <strong>NSAID</strong> (<strong>diclofenac, ibuprofen</strong>) pro sn&#237;&#382;en&#237; syst&#233;mov&#233;ho z&#225;n&#283;tu (CRP), <a href="/__u/zdeneksipek.substack.com/p/radikalni-remise">optimalizace du&#353;evn&#237;ho stavu a eliminace stresu</a>.</p></li></ol><div><hr></div><p><strong>6. Omezen&#237; a z&#225;v&#283;r</strong></p><p><strong>Omezen&#237;:</strong></p><ul><li><p>V&#283;t&#353;ina d&#367;kaz&#367; je <strong>preklinick&#233;ho charakteru</strong> (in vitro, zv&#237;&#345;ec&#237; modely nebo p&#345;&#237;padov&#233; studie).</p></li><li><p>Chyb&#237; rozs&#225;hl&#233; randomizovan&#233; klinick&#233; studie pro koordinovan&#233; protokoly TMT (ty vzhledem k fungov&#225;n&#237; syst&#233;mu, kter&#253; nem&#225; z&#225;jem o komplexn&#237; kombinace nepatentovateln&#253;ch l&#225;tek ov&#353;em nelze v dohledn&#233; dob&#283; o&#269;ek&#225;vat).</p></li><li><p>Bezpe&#269;nostn&#237; profily a interakce p&#345;i kombinaci mnoha l&#225;tek nebyly systematicky testov&#225;ny.</p></li><li><p>Vhodn&#253; je klinick&#253; dohled a individu&#225;ln&#237; &#250;prava d&#225;vkov&#225;n&#237;.</p></li></ul><p><strong>Z&#225;v&#283;r:</strong></p><p><strong>C&#237;len&#225; metabolick&#225; terapie p&#345;edstavuje posun od hled&#225;n&#237; &#8220;z&#225;zra&#269;n&#233; pilulky&#8221; k syst&#233;mov&#233;mu tlaku na v&#237;ce front&#225;ch. T&#237;m, &#382;e se sou&#269;asn&#283; zam&#283;&#345;uje na palivo n&#225;doru (gluk&#243;za/glutamin), jeho ochranu (acidick&#233; mikroprost&#345;ed&#237;) a fyzick&#233; zdrav&#237; a du&#353;evn&#237; stav hostitele, m&#367;&#382;e TMT potenci&#225;ln&#283; zm&#283;nit trajektorii onemocn&#283;n&#237; sm&#283;rem k dlouhodob&#233; kontrole nebo remisi. Tato strategie nab&#237;z&#237; praktick&#253; n&#225;stroj pro konstrukci mechanisticky podlo&#382;en&#253;ch l&#233;&#269;ebn&#253;ch pl&#225;n&#367;, kter&#233; zvy&#353;uj&#237; &#250;&#269;inek konven&#269;n&#237; onkologick&#233; p&#233;&#269;e a p&#345;i komplexn&#237;m kombinovan&#233;m nasazen&#237; vedou v n&#283;kter&#253;ch p&#345;&#237;padech k remis&#237;m i v tzv. &#8220;nel&#233;&#269;iteln&#253;ch p&#345;&#237;padech&#8221; (<a href="https://thelifeorganic.com/">1</a>,<a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8072186/">2</a>).</strong></p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p></p><p>Zdroje: </p><p>Anane Y. Targeted Metabolic Therapy in Cancer: A Comprehensive Metabolic Treatment Strategy. Cureus. 2026 May 6;18(5):e108373. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC13240970/">doi: 10.7759/cureus.108373. PMID: 42255869; PMCID: PMC13240970</a>.</p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[Why Living Past 115 Is Almost Impossible]]></title><description><![CDATA[Business Insider's The Limit series]]></description><link>https://zdeneksipek.substack.com/p/why-living-past-115-is-almost-impossible</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/why-living-past-115-is-almost-impossible</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Wed, 08 Jul 2026 12:41:09 GMT</pubDate><enclosure url="https://substackcdn.com/image/youtube/w_728,c_limit/WKi9FHrGAjA" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>The episode "Why Living Past 115 Is Almost Impossible" from Business Insider's <em>The Limit</em> series mentions my 2nd place finish in the 2025 Longevity World Cup and serves as a high-quality, brief, and easy-to-understand introduction to the world of longevity.</p><div id="youtube2-WKi9FHrGAjA" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;WKi9FHrGAjA&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/WKi9FHrGAjA?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><div><hr></div><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div>]]></content:encoded></item><item><title><![CDATA[PAI-1, dlouhověkost a rakovina]]></title><description><![CDATA[Pro&#269; jeden protein rozhoduje o tom, jak dlouho &#8212; a jak zdrav&#283; &#8212; budeme &#382;&#237;t]]></description><link>https://zdeneksipek.substack.com/p/pai-1-dlouhovekost-a-rakovina</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/pai-1-dlouhovekost-a-rakovina</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 04 Jul 2026 12:00:26 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!3r2v!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p>Existuje protein, o kter&#233;m jste pravd&#283;podobn&#283; nikdy nesly&#353;eli, a p&#345;itom je jedn&#237;m z nejv&#253;znamn&#283;j&#353;&#237;ch regul&#225;tor&#367; va&#353;eho biologick&#233;ho v&#283;ku. Jmenuje se <strong>PAI-1</strong> &#8212; inhibitor aktiv&#225;toru plazminogenu typu 1 &#8212; a v&#253;zkum posledn&#237;ch dvou dek&#225;d ho prom&#283;nil z obskurn&#237;ho hemostatick&#233;ho faktoru v jeden z c&#237;l&#367; l&#233;&#269;by rakoviny i st&#225;rnut&#237;.</p><p>Pokud v&#225;s zaj&#237;m&#225;, pro&#269; n&#283;kte&#345;&#237; lid&#233; v 75 letech vypadaj&#237; na 55, a pro&#269; jin&#237; ve 55 vypadaj&#237; na 75 &#8212; PAI-1 je sou&#269;&#225;st&#237; odpov&#283;di.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><div><hr></div><p><strong>Co je PAI-1 a co d&#283;l&#225;</strong></p><p>PAI-1 je glykoprotein produkovan&#253; endoteli&#225;ln&#237;mi bu&#328;kami, j&#225;try, tukov&#253;mi bu&#328;kami a krevn&#237;mi desti&#269;kami. Jeho prim&#225;rn&#237; fyziologick&#225; role je jednoduch&#225;: blokuje enzymy, kter&#233; rozpou&#353;t&#283;j&#237; krevn&#237; sra&#382;eniny (t-PA a urokin&#225;zu), a t&#237;m zastavuje krv&#225;cen&#237; po zran&#283;n&#237;.</p><p>To zn&#237; prosp&#283;&#353;n&#283; &#8212; a akutn&#283; to prosp&#283;&#353;n&#233; je. Probl&#233;m nast&#225;v&#225;, kdy&#382; hladiny PAI-1 z&#367;stanou chronicky zv&#253;&#353;en&#233;. Tehdy se z ochr&#225;nce st&#225;v&#225; sabot&#233;r:</p><ul><li><p>Fibrin se nekompletn&#283; odstra&#328;uje &#8594; <strong>tromb&#243;zy</strong></p></li><li><p>Bun&#283;&#269;n&#233; struktury se nemohou spr&#225;vn&#283; remodelovat &#8594; <strong>fibr&#243;za org&#225;n&#367;</strong></p></li><li><p>Bu&#328;ky vstupuj&#237; do stavu permanentn&#237; senescence &#8594; <strong>zrychlen&#233; st&#225;rnut&#237;</strong></p></li><li><p>N&#225;dorov&#233; bu&#328;ky z&#237;sk&#225;vaj&#237; ochranu p&#345;ed apopt&#243;zou &#8594; <strong>podpora rakoviny</strong></p></li></ul><p>PAI-1 nen&#237; jen biomarker. Je to aktivn&#237; &#250;&#269;astn&#237;k patologick&#253;ch proces&#367;, kter&#233; n&#225;s zab&#237;jej&#237;.</p><div><hr></div><p><strong>Ami&#353;sk&#253; d&#367;kaz: genetick&#225; zkratka k dlouhov&#283;kosti</strong></p><p>V roce 2017 publikoval t&#253;m z Northwestern University p&#345;ekvapivou <a href="https://www.science.org/doi/10.1126/sciadv.aao1617">studii v &#269;asopise </a><em><a href="https://www.science.org/doi/10.1126/sciadv.aao1617">Science Advances</a></em>. Sledovali komunitu Ami&#353;&#367; v Indian&#283;, v n&#237;&#382; se vyskytuje heterozygotn&#237; mutace genu SERPINE1 &#8212; mutace, kter&#225; sni&#382;uje produkci PAI-1 p&#345;ibli&#382;n&#283; o polovinu.</p><p>Nositel&#233; mutace vykazovali oproti sv&#253;m p&#345;&#237;buzn&#253;m bez mutace pr&#367;m&#283;rn&#233; prodlou&#382;en&#237; &#382;ivota o <strong>7 let</strong>.</p><p>Konkr&#233;tn&#283; byl <strong>pr&#367;m&#283;rn&#253; v&#283;k &#250;mrt&#237;</strong> u nositel&#367; <strong>82 &#177; 10 let</strong>, zat&#237;mco u neposti&#382;en&#253;ch jedinc&#367; to bylo <strong>75 &#177; 12 let</strong>. <strong>Medi&#225;n p&#345;e&#382;it&#237;</strong> byl u skupiny nositel&#367; rovn&#283;&#382; v&#253;znamn&#283; vy&#353;&#353;&#237;, a to <strong>85 let</strong> (interkvartiln&#237; rozmez&#237; 73 a&#382; 88 let), oproti <strong>75 let&#367;m</strong> (interkvartiln&#237; rozmez&#237; 70 a&#382; 83 let) u jedinc&#367; bez mutace.</p><p>Toto prodlou&#382;en&#237; dlouhov&#283;kosti je pravd&#283;podobn&#283; ovlivn&#283;no n&#283;kolika faktory spojen&#253;mi s touto mutac&#237;:</p><ul><li><p><strong>V&#253;znamn&#283; del&#353;&#237; telomery leukocyt&#367;</strong>, kter&#233; byly u nositel&#367; po o&#269;i&#353;t&#283;n&#237; o v&#283;k a pohlav&#237; o 10 % del&#353;&#237; ne&#382; u nenositel&#367;.</p></li><li><p><strong>Ni&#382;&#353;&#237; hladina inzul&#237;nu nala&#269;no</strong>, kter&#225; byla u nositel&#367; mutace o 28 % ni&#382;&#353;&#237;.</p></li><li><p><strong>Ni&#382;&#353;&#237; v&#253;skyt cukrovky 2. typu</strong>, kter&#253; u nositel&#367; mutace &#269;inil 0 %, zat&#237;mco u neposti&#382;en&#233; skupiny to bylo 7 %</p></li></ul><p>Toto je p&#345;&#237;m&#253; genetick&#253; d&#367;kaz. M&#233;n&#283; PAI-1 = del&#353;&#237; a zdrav&#283;j&#353;&#237; &#382;ivot. </p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!3r2v!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!3r2v!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!3r2v!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F90ba8af7-602d-40e3-b6a6-9537df911ab1_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>PAI-1 a bun&#283;&#269;n&#225; senescence: za&#269;arovan&#253; kruh st&#225;rnut&#237;</strong></p><p>Jedn&#237;m z nejzaj&#237;mav&#283;j&#353;&#237;ch objev&#367; posledn&#237;ch let je, &#382;e PAI-1 nefiguruje jen jako <em>d&#367;sledek</em> st&#225;rnut&#237;, ale aktivn&#283; ho <em>zp&#367;sobuje</em>.</p><p>Senescen&#269;n&#237; bu&#328;ky &#8212; bu&#328;ky, kter&#233; p&#345;estaly se d&#283;lit, ale odm&#237;taj&#237; zem&#345;&#237;t &#8212; produkuj&#237; koktejl proz&#225;n&#283;tliv&#253;ch molekul ozna&#269;ovan&#253; jako <strong>SASP</strong> (Senescence-Associated Secretory Phenotype). PAI-1 je jednou z kl&#237;&#269;ov&#253;ch slo&#382;ek SASP.</p><p>Jen&#382;e PAI-1 s&#225;m o sob&#283; m&#367;&#382;e senescenci indukovat &#8212; aktivuje dr&#225;hu p53/p21, kter&#225; zastavuje bun&#283;&#269;n&#253; cyklus. T&#237;m vznik&#225; smy&#269;ka:</p><p><strong>Stres/z&#225;n&#283;t/CDR &#8594; PAI-1 &#8593; &#8594; senescence &#8594; v&#237;ce PAI-1 &#8594; senescence okoln&#237;ch bun&#283;k &#8594; dysfunkce &#8594; st&#225;rnut&#237;</strong></p><p>Tato smy&#269;ka prob&#237;h&#225; ve v&#353;ech org&#225;nech sou&#269;asn&#283;. V srdci vytv&#225;&#345;&#237; fibr&#243;zu. V j&#225;trech cirh&#243;zu. U tukov&#253;ch bun&#283;k chronick&#253; z&#225;n&#283;t. V mozku neurodegeneraci.</p><p>P&#345;eru&#353;it tuto smy&#269;ku je jedn&#237;m z hlavn&#237;ch c&#237;l&#367; medic&#237;ny zam&#283;&#345;en&#233; na dlouhov&#283;kost.</p><div><hr></div><p><strong>PAI-1 a metabolick&#253; syndrom: kdo koho poh&#225;n&#237;</strong></p><p>PAI-1 a metabolick&#233; poruchy jsou navz&#225;jem propojeny do syst&#233;mu pozitivn&#237; zp&#283;tn&#233; vazby. Obezita &#8212; zejm&#233;na <strong>viscer&#225;ln&#237; tuk</strong> &#8212; je jedn&#237;m z nejv&#283;t&#353;&#237;ch zdroj&#367; PAI-1 v t&#283;le. Tukov&#233; bu&#328;ky jsou masivn&#237;mi producenty tohoto proteinu.</p><p><strong>Hyperinzulin&#233;mie p&#345;&#237;mo stimuluje expresi PAI-1</strong> prost&#345;ednictv&#237;m inzulinov&#253;ch receptor&#367; na endoteli&#225;ln&#237;ch bu&#328;k&#225;ch a hepatocytech. Chronicky <strong>vysok&#253; kortizol (stres) </strong>d&#283;l&#225; tot&#233;&#382; p&#345;es <strong>glukokortikoidn&#237; receptory</strong>. <strong>Angiotensin II</strong> (kl&#237;&#269;ov&#253; hr&#225;&#269; vysok&#233;ho krevn&#237;ho tlaku) <strong>PAI-1 zvy&#353;uje p&#345;es AT1 receptory</strong>.</p><p>V&#253;sledkem je, &#382;e &#269;lov&#283;k s metabolick&#253;m syndromem m&#225; prakticky v&#382;dy v&#253;razn&#283; zv&#253;&#353;en&#253; PAI-1 &#8212; a vysok&#253; PAI-1 zp&#283;tn&#283; zhor&#353;uje inzulinovou senzitivitu, z&#225;n&#283;t a vaskul&#225;rn&#237; funkci.</p><div><hr></div><p><strong>PAI-1 v onkologii: FDA-schv&#225;len&#253; prognostick&#253; marker</strong></p><p>Zde se p&#345;&#237;b&#283;h PAI-1 st&#225;v&#225; je&#353;t&#283; zaj&#237;mav&#283;j&#353;&#237;m a komplexn&#283;j&#353;&#237;m.</p><p>PAI-1 je <strong>jedin&#253;m proteinem (spolu s uPA), jeho&#382; hladina v n&#225;doru je schv&#225;lena FDA jako prognostick&#253; marker</strong> &#8212; konkr&#233;tn&#283; u karcinomu prsu ve stadiu bez posti&#382;en&#237; uzlin (N0):</p><ul><li><p>PAI-1 &gt; 14 ng/mg &#8594; <strong>vysok&#233; riziko recidivy &#8594; adjuvantn&#237; chemoterapie doporu&#269;ena</strong></p></li><li><p>PAI-1 &#8804; 14 ng/mg &#8594; <strong>n&#237;zk&#233; riziko &#8594; chemoterapie lze vynechat</strong></p></li></ul><p><strong>Jak PAI-1 podporuje n&#225;dory</strong></p><p>V n&#225;dorech PAI-1 hraje protumorigenn&#237; roli prost&#345;ednictv&#237;m n&#283;kolika mechanism&#367;:</p><p><strong>Ochrana p&#345;ed apopt&#243;zou.</strong> PAI-1 se v&#225;&#382;e na vitronektin a aktivuje PI3K/Akt signalizaci &#8212; jednu z hlavn&#237;ch anti-apoptotick&#253;ch drah. N&#225;dorov&#233; bu&#328;ky s vysok&#253;m PAI-1 jsou odoln&#283;j&#353;&#237; v&#367;&#269;i chemoterapii i imunitn&#237;mu &#250;toku.</p><p><strong>Angiogeneze.</strong> PAI-1 podporuje VEGF-indukovanou tvorbu nov&#253;ch c&#233;v a z&#225;rove&#328; inhibuje anti-angiogenn&#237; faktory jako trombospondin-1. N&#225;dor bez c&#233;v neum&#237; r&#367;st; PAI-1 mu c&#233;vn&#237; z&#225;soben&#237; pom&#225;h&#225; budovat.</p><p><strong>Imunosuprese.</strong> Vysok&#253; PAI-1 v n&#225;dorov&#233;m mikroprost&#345;ed&#237; inhibuje migraci NK bun&#283;k a cytotoxick&#253;ch T lymfocyt&#367; do n&#225;doru a podporuje diferenciaci makrof&#225;g&#367; na imunosupresivn&#237; M2 fenotyp.</p><p><strong>Metast&#225;zy.</strong> PAI-1 reguluje dynamiku integrin&#367; &#8212; molekul&#225;rn&#237;ch &#8220;h&#225;k&#367;&#8221;, kter&#253;mi bu&#328;ky p&#345;ilnou k povrch&#367;m. PAI-1 kompetitivn&#283; vyt&#283;s&#328;uje integriny z vazby na vitronektin v extracelul&#225;rn&#237; matici (ECM). Tento proces uvol&#328;uje bu&#328;ky z pevn&#233; adheze a p&#345;ep&#237;n&#225; je do migra&#269;n&#237;ho fenotypu, co&#382; usnad&#328;uje invazi.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!DsDM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 424w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 848w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 1272w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!DsDM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png" width="1157" height="623" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/9d47716c-d34d-475f-909d-38786553f452_1157x623.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:623,&quot;width&quot;:1157,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1069142,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/201994552?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 424w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 848w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 1272w, /__u/substackcdn.com/image/fetch/$s_!DsDM!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9d47716c-d34d-475f-909d-38786553f452_1157x623.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>PAI-1 v kontextu specifick&#253;ch typ&#367; n&#225;dor&#367;</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!FXAc!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 424w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 848w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 1272w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!FXAc!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png" width="768" height="408" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/c97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:408,&quot;width&quot;:768,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:84557,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/201994552?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 424w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 848w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 1272w, /__u/substackcdn.com/image/fetch/$s_!FXAc!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc97c18a3-4105-4df4-a66e-d1325c03ed11_768x408.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>Biomarkery: co sledovat spolu s PAI-1</strong></p><p>PAI-1 nejde m&#283;&#345;it izolovan&#283; &#8212; je sou&#269;&#225;st&#237; s&#237;t&#283; metabolick&#253;ch, z&#225;n&#283;tliv&#253;ch a hormon&#225;ln&#237;ch proces&#367;. Komplexn&#237; obraz vy&#382;aduje panel koreluj&#237;c&#237;ch marker&#367;.</p><p><strong>P&#345;&#237;m&#233; markery fibrinolytick&#233;ho syst&#233;mu</strong></p><p><strong>PAI-1 antigen</strong> (plazma): ide&#225;ln&#237; &lt; 15 ng/ml. Pozor na cirkadi&#225;ln&#237; rytmus &#8212; r&#225;no jsou hodnoty vy&#353;&#353;&#237;, testujte konzistentn&#283;.</p><p><strong>PAI-1 aktivita</strong>: &lt; 10 IU/ml. Funk&#269;n&#237; test &#8212; lep&#353;&#237; prediktor trombotick&#233;ho rizika ne&#382; samotn&#253; antigen.</p><p><strong>t-PA antigen</strong>: 1&#8211;12 ng/ml. Kompenzatorn&#283; stoup&#225; p&#345;i chronicky vysok&#233;m PAI-1.</p><p><strong>D-dimer</strong>: &lt; 0,5 mg/l FEU. Paradoxn&#283; m&#367;&#382;e b&#253;t n&#237;zk&#253; p&#345;i dominanci PAI-1 (fibrinol&#253;za je blokov&#225;na).</p><p><strong>Fibrinogen</strong>: ide&#225;ln&#283; &lt; 3 g/l. Stoup&#225; p&#345;i z&#225;n&#283;tu; substr&#225;t pro tromby.</p><p><strong>Metabolick&#233; a z&#225;n&#283;tliv&#233; markery</strong></p><p><strong>hsCRP</strong> (high-sensitivity CRP): ide&#225;ln&#283; &lt; 0,5 mg/l. Siln&#225; korelace s PAI-1; marker NF-&#954;B aktivity.</p><p><strong>IL-6</strong>: &lt; 2 pg/ml. P&#345;&#237;m&#253; induktor PAI-1 p&#345;es TGF-&#946; kask&#225;du.</p><p><strong>TGF-&#946;1</strong>: &lt; 1000 pg/ml. Nejsiln&#283;j&#353;&#237; induktor PAI-1; z&#225;rove&#328; marker fibrotick&#253;ch proces&#367;.</p><p><strong>Inzul&#237;n nala&#269;no + HOMA-IR</strong>: inzul&#237;n &lt; 5 mIU/l, HOMA-IR &lt; 1,5. Hyperinzulin&#233;mie je pravd&#283;podobn&#283; nejv&#283;t&#353;&#237; modifikovateln&#253; driver PAI-1.</p><p><strong>HbA1c</strong>: &lt; 5,4 %. Chronick&#225; hyperglyk&#233;mie &#8594; glykace &#8594; oxidativn&#237; stres &#8594; PAI-1.</p><p><strong>Kortizol</strong> (rann&#237;): 150&#8211;500 nmol/l. Chronick&#253; stres = chronicky vysok&#253; PAI-1.</p><p><strong>Angiotensin II</strong>: &lt; 20 pg/ml. P&#345;&#237;m&#253; induktor p&#345;es AT1 receptory.</p><p><strong>Biomarkery senescence a biologick&#233;ho v&#283;ku</strong></p><p><strong>GDF-15</strong>: &lt; 500 pg/ml (u osob do 40 let). Stoup&#225; se senescenc&#237;; koreluje s PAI-1 a mitochondri&#225;ln&#237;m stresem.</p><p><strong>D&#233;lka telomer</strong>: v&#283;kov&#233; percentily. PAI-1 telomery zkracuje p&#345;es oxidativn&#237; po&#353;kozen&#237; DNA.</p><p><strong>NAD+</strong>: 20&#8211;50 &#181;mol/l. Kles&#225; se st&#225;rnut&#237;m; koreluje s PAI-1 p&#345;es sirtuin signalizaci.</p><p><strong>Klotho</strong> (s&#233;rov&#253;): &gt; 700 pg/ml. Anti-aging hormon; n&#237;zk&#253; klotho koreluje s vysok&#253;m PAI-1.</p><p><strong>Epigenetick&#253; v&#283;k</strong> (komer&#269;n&#237; testy jako DunedinPACE nebo Horvath Clock): chronologick&#253; v&#283;k nebo ni&#382;&#353;&#237;. PAI-1 akceleruje epigenetick&#233; st&#225;rnut&#237;.</p><p><strong>Lipidov&#233; a vaskul&#225;rn&#237; markery</strong></p><p><strong>Triglyceridy</strong>: &lt; 1,0 mmol/l ide&#225;ln&#283;. Siln&#225; p&#345;&#237;m&#225; korelace s PAI-1.</p><p><strong>oxLDL</strong> (oxidovan&#253; LDL): &lt; 60 U/l. P&#345;&#237;m&#253; induktor PAI-1 v endoteli&#225;ln&#237;ch bu&#328;k&#225;ch.</p><p><strong>Lp(a)</strong>: &lt; 50 nmol/l. Kompetitor s plazminogenem; synergicky s PAI-1 zvy&#353;uje trombotick&#233; riziko.</p><p><strong>Homocystein</strong>: &lt; 8 &#181;mol/l. Endoteli&#225;ln&#237; dysfunkce &#8594; PAI-1.</p><div><hr></div><p><strong>Protokol pro sn&#237;&#382;en&#237; PAI-1</strong></p><p>Intervence jsou se&#345;azeny hierarchicky. Vy&#353;&#353;&#237; tier bez ni&#382;&#353;&#237;ho nefunguje naplno. Farmakologie bez &#382;ivotn&#237;ho stylu je jako stav&#283;t na p&#237;sku.</p><div><hr></div><p><strong>Tier 1 &#8212; &#381;ivotn&#237; styl (z&#225;klad, povinn&#253;)</strong></p><p>Toto je jedin&#253; tier, kde &#250;&#269;inek m&#283;&#345;&#237;me des&#237;tkami procent, nikoliv procenty. Bez tohoto z&#225;kladu je zbytek margin&#225;ln&#237;.</p><p><strong>Stravov&#225;n&#237;</strong></p><p>Nej&#250;&#269;inn&#283;j&#353;&#237; dietn&#237; intervenc&#237; pro sn&#237;&#382;en&#237; PAI-1 je eliminace hyperinzulin&#233;mie. Prakticky to znamen&#225;:</p><p><em>N&#237;zkosacharidov&#225; nebo ketogenn&#237; dieta</em> (&lt; 50 g sacharid&#367;/den) &#8212; minimalizuje postprandi&#225;ln&#237; inzul&#237;n, kter&#253; je p&#345;&#237;m&#253;m induktorem PAI-1.</p><p><em>P&#345;eru&#353;ovan&#253; p&#367;st 16:8 nebo 18:6</em> &#8212; sni&#382;uje chronick&#233; baz&#225;ln&#237; hladiny inzul&#237;nu, IL-6 a TGF-&#946;. </p><p><em>Omega-3 bohat&#225; strava</em> &#8212; tu&#269;n&#233; ryby 4-6&#215; t&#253;dn&#283;; EPA a DHA inhibuj&#237; NF-&#954;B a TGF-&#946;.</p><p><em>Polyfenoly</em> &#8212; bor&#367;vky, gran&#225;tov&#233; jablko, zelen&#253; &#269;aj, extra panensk&#253; olivov&#253; olej.</p><p><em>Eliminace ultra-zpracovan&#253;ch potravin a pr&#367;myslov&#253;ch rostlinn&#253;ch olej&#367;</em> &#8212; trans-tuky a oxidovan&#233; mastn&#233; kyseliny p&#345;&#237;mo stimuluj&#237; PAI-1 v endotelu.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!pYLj!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 424w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 848w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!pYLj!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png" width="1148" height="610" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 424w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 848w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pYLj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcb3e4987-de2e-4b59-9ec0-d9385ca6248f_1148x610.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Fyzick&#225; aktivita</strong></p><p><em>Aerobn&#237; tr&#233;nink v z&#243;n&#283; 2</em> (60&#8211;70 % maxim&#225;ln&#237; tepov&#233; frekvence, 45&#8211;60 min, 4&#8211;5&#215; t&#253;dn&#283;) &#8212; chronicky sni&#382;uje PAI-1 o 20&#8211;40 % prost&#345;ednictv&#237;m zlep&#353;en&#237; inzulinov&#233; senzitivity, sn&#237;&#382;en&#237; viscer&#225;ln&#237;ho tuku a p&#345;&#237;m&#233; stimulace fibrinol&#253;zy.</p><p><em>Silov&#253; tr&#233;nink</em> 2&#8211;3&#215; t&#253;dn&#283; &#8212; zlep&#353;uje inzulinovou senzitivitu a redukuje viscer&#225;ln&#237; tuk.</p><p><em>Ch&#367;ze po j&#237;dle</em> 10&#8211;20 minut &#8212; jeden z nejjednodu&#353;&#353;&#237;ch a nej&#250;&#269;inn&#283;j&#353;&#237;ch zp&#367;sob&#367;, jak sn&#237;&#382;it postprandi&#225;ln&#237; glyk&#233;mii a inzul&#237;n.</p><p><strong>Sp&#225;nek a stres</strong></p><p><em>Sp&#225;nek 7&#8211;9 hodin</em> je z&#225;klad. Sp&#225;nkov&#253; deficit zvy&#353;uje kortizol, IL-6 a PAI-1 p&#345;&#237;mou cestou. Jedna zkr&#225;cen&#225; noc (&lt; 6 hodin) zv&#253;&#353;&#237; PAI-1 o des&#237;tky procent.</p><p><em>Sauna</em> &#8212; finsk&#233; studie ukazuj&#237;, &#382;e sauna 3&#8211;4&#215; t&#253;dn&#283; (80&#8211;100&#176;C, 15&#8211;20 minut) sni&#382;uje fibrinogen, CRP a nep&#345;&#237;mo PAI-1. Efekt je srovnateln&#253; s m&#237;rn&#253;m aerobn&#237;m cvi&#269;en&#237;m.</p><p><em>Management chronick&#233;ho stresu</em> &#8212; chronicky aktivovan&#225; osa HPA (hypotalamus-hypof&#253;za-nadledviny) znamen&#225; chronicky vysok&#253; kortizol, kter&#253; p&#345;&#237;mo transkrip&#269;n&#283; aktivuje PAI-1. Meditace, saunov&#225;n&#237;, p&#345;&#237;roda, kvalitn&#237; soci&#225;ln&#237; vztahy &#8212; to nejsou dopl&#328;ky. To jsou intervence.</p><div><hr></div><p><strong>Tier 2 &#8212; Suplementy (evidence-based)</strong></p><p><strong>Omega-3 mastn&#233; kyseliny (EPA + DHA)</strong> &#8212; nejsiln&#283;j&#353;&#237; evidence. Meta-anal&#253;zy potvrzuj&#237; sn&#237;&#382;en&#237; PAI-1 o 20&#8211;35 %. D&#225;vka: 3&#8211;4 g EPA+DHA denn&#283;, triglyceridov&#225; forma s j&#237;dlem je l&#233;pe vst&#345;ebateln&#225;.</p><p><strong>Nattokinasa</strong> &#8212; enzym z japonsk&#233;ho pokrmu natto, kter&#253; p&#345;&#237;mo &#353;t&#283;p&#237; fibrin a sni&#382;uje PAI-1 aktivitu. Klinick&#233; studie: sn&#237;&#382;en&#237; PAI-1 o 15&#8211;30 %. D&#225;vka: 2000&#8211;4000 FU denn&#283;, nala&#269;no nebo 2 hodiny po j&#237;dle. Opatrnost p&#345;i soub&#283;&#382;n&#233; antikoagulaci.</p><p><strong>Vitamin D3 + K2</strong> &#8212; deficience D3 siln&#283; koreluje s elevac&#237; PAI-1. VDR (receptor vitaminu D) reguluje transkripci PAI-1. Suplementace sni&#382;uje PAI-1 u deficientn&#237;ch jedinc&#367; o 15&#8211;25 %. D&#225;vka: D3 5000&#8211;10 000 IU/den + K2 MK-7 200 &#181;g/den.</p><p><strong>Berberine</strong> &#8212; aktivuje AMPK stejn&#253;m mechanismem jako metformin, sni&#382;uje inzul&#237;n, TGF-&#946; a NF-&#954;B. Klinicky srovnateln&#253; efekt s metforminem na HOMA-IR. D&#225;vka: 500 mg 2&#8211;3&#215; denn&#283; p&#345;ed j&#237;dlem.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!k2hx!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!k2hx!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png 424w, /__u/substackcdn.com/image/fetch/$s_!k2hx!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png 848w, /__u/substackcdn.com/image/fetch/$s_!k2hx!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png 1272w, /__u/substackcdn.com/image/fetch/$s_!k2hx!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!k2hx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png" width="1004" height="353" 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/__u/substackcdn.com/image/fetch/$s_!k2hx!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3cd173a9-c0a8-4c7e-ae96-038823fc5b85_1004x353.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Quercetin</strong> &#8212; flavonoid s p&#345;&#237;m&#253;m inhibi&#269;n&#237;m efektem na NF-&#954;B a senolytickim potenci&#225;lem. D&#225;vka: 500&#8211;1000 mg/den.</p><p><strong>Curcumin</strong> &#8212; inhibice NF-&#954;B, TGF-&#946; a IL-6. Probl&#233;mem je biologick&#225; dostupnost: nutno u&#382;&#237;vat fosfolipidovou formu (fitosomy) nebo v kombinaci s piperinem (+20 % absorpce). D&#225;vka: 1500&#8211;2000 mg/den.</p><p><strong>Resveratrol</strong> &#8212; aktivuje SIRT1, inhibuje NF-&#954;B a sni&#382;uje SASP. Biologick&#225; dostupnost je u standardn&#237;ch forem n&#237;zk&#225; &#8212; hledejte trans-resveratrol a kombinujte s piperinem. D&#225;vka: 500&#8211;1000 mg/den s j&#237;dlem.</p><p><strong>Magnesium</strong> &#8212; deficience ho&#345;&#269;&#237;ku (postihuje odhadem 50&#8211;80 % populace) koreluje s elevac&#237; PAI-1 prost&#345;ednictv&#237;m kortizolu a z&#225;n&#283;tu. D&#225;vka: 400&#8211;600 mg/den, preferovat glycin&#225;t, mal&#225;t nebo threon&#225;t.</p><p><strong>Sulforafan (brokolicov&#253; extrakt)</strong> &#8212; aktivuje Nrf2, kl&#237;&#269;ov&#253; regul&#225;tor bun&#283;&#269;n&#233; ochrany p&#345;ed oxidativn&#237;m stresem. 50&#8211;100 mg sulforafanu denn&#283; (nebo 200 g &#269;erstv&#233; brokolice &#8212;  va&#345;en&#237; sulforafan ni&#269;&#237;).</p><p><strong>NAD+ prekurzory (NMN nebo NR)</strong> &#8212; zv&#253;&#353;en&#237; NAD+ aktivuje sirtuiny (SIRT1/SIRT3), kter&#233; sni&#382;uj&#237; SASP a nep&#345;&#237;mo PAI-1. D&#225;vka: NMN 500&#8211;1000 mg/den r&#225;no.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VZSX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 424w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 848w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!VZSX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png" width="1000" height="420" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 424w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 848w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VZSX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faf19dc83-495e-40cd-bb3d-03c9d5d0597c_1000x420.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>Tier 3 &#8212; Farmakologie (pod l&#233;ka&#345;sk&#253;m dohledem)</strong></p><blockquote><p><em>Farmakologick&#233; intervence jsou indikov&#225;ny p&#345;i v&#253;razn&#283; zv&#253;&#353;en&#233;m PAI-1, metabolick&#233;m syndromu nebo nedostate&#269;n&#233;m efektu Tier 1 a 2. Vy&#382;aduj&#237; l&#233;ka&#345;sk&#253; dohled nebo profesion&#225;ln&#237; znalosti.</em></p></blockquote><p><strong>Metformin</strong> &#8212; aktivace AMPK, inhibice NF-&#954;B a TGF-&#946;, sn&#237;&#382;en&#237; PAI-1 o 20&#8211;40 %. Nejrobustn&#283;j&#353;&#237; longevitn&#237; data ze v&#353;ech schv&#225;len&#253;ch l&#233;k&#367; (studie TAME). D&#225;vka: 500&#8211;2000 mg/den s j&#237;dlem. Suplementovat B12 (metformin ji vy&#269;erp&#225;v&#225;). Kontraindikov&#225;n p&#345;i eGFR &lt; 45.</p><p><strong>ARB / ACE inhibitory</strong> &#8212; blok&#225;da angiotensinu II je jednou z nejp&#345;&#237;m&#283;j&#353;&#237;ch farmakologick&#253;ch cest ke sn&#237;&#382;en&#237; PAI-1. Losartan 50&#8211;100 mg/den nebo perindopril 5&#8211;10 mg/den. Studie LIFE a HOPE potvrzuj&#237; p&#345;&#237;m&#233; sn&#237;&#382;en&#237; PAI-1 o 25&#8211;35 %. Vhodn&#233; pro pacienty s hypertenz&#237;, diabetickou nefropati&#237; nebo srde&#269;n&#237;m selh&#225;n&#237;m.</p><p><strong>Statiny</strong> &#8212; pleiotropn&#237; efekty p&#345;esahuj&#237; sn&#237;&#382;en&#237; LDL: inhibice NF-&#954;B, sn&#237;&#382;en&#237; oxidativn&#237;ho stresu, endoteli&#225;ln&#237; protekce. Meta-anal&#253;zy ukazuj&#237; sn&#237;&#382;en&#237; PAI-1 o 15&#8211;25 % nez&#225;visle na lipidov&#233;m efektu. Rosuvastatin 10&#8211;20 mg/den.</p><p><strong>GLP-1 agonist&#233; (semaglutid, liraglutid)</strong> &#8212; sn&#237;&#382;en&#237; inzulinov&#233; rezistence, t&#283;lesn&#233; hmotnosti a z&#225;n&#283;tu &#8594; nep&#345;&#237;m&#233; sn&#237;&#382;en&#237; PAI-1. Kardiovaskul&#225;rn&#237; studie (LEADER, SUSTAIN) ukazuj&#237; v&#253;raznou protektivitu. Onkologick&#225; data nazna&#269;uj&#237; ni&#382;&#353;&#237; v&#253;skyt n&#225;dor&#367; u l&#233;&#269;en&#253;ch pacient&#367;. Semaglutid 0,5&#8211;2 mg t&#253;dn&#283; sc.</p><p><strong>Fenofibr&#225;t</strong> &#8212; PPAR-&#945; agonista s p&#345;&#237;mou inhibic&#237; PAI-1 exprese. Sni&#382;uje triglyceridy (jeden z hlavn&#237;ch korel&#225;t&#367; PAI-1) a p&#345;&#237;mo ovliv&#328;uje PPAR-&#945; dependentn&#237; transkripci PAI-1. 145&#8211;200 mg/den.</p><p><strong>Fisetin (senolytikum)</strong> &#8212; flavonoid s v&#253;razn&#253;mi senolytick&#253;mi vlastnostmi potvrzen&#253; Mayo Clinic studiemi u my&#353;&#237;. Eliminuje senescen&#269;n&#237; bu&#328;ky, &#269;&#237;m&#382; sni&#382;uje SASP-PAI-1. D&#225;vka: 1000&#8211;1500 mg/den po dobu 2 dn&#367; v m&#283;s&#237;ci (pulsn&#237; protokol). Dostupn&#253; jako suplement.</p><div><hr></div><p><strong>Tier 4 &#8212; Experiment&#225;ln&#237; intervence (longevitn&#237; kliniky, klinick&#233; studie)</strong></p><p><strong>Rapamycin (n&#237;zk&#225; intermitentn&#237; d&#225;vka)</strong> &#8212; mTOR inhibitor s nejrobustn&#283;j&#353;&#237;mi longevitn&#237;mi daty u savc&#367;. Prodlu&#382;uje &#382;ivot u my&#353;&#237; o 25 %, prob&#237;haj&#237; klinick&#233; studie (PEARL, AGELESS). P&#345;&#237;m&#225; inhibice SASP a PAI-1 exprese. Off-label v longevity: 1&#8211;6 mg t&#253;dn&#283;. Vy&#382;aduje l&#233;ka&#345;sk&#253; dohled (imunosuprese, hyperglyk&#233;mie).</p><p><strong>CAR-T senoterapie (v&#253;zkumn&#225; f&#225;ze)</strong> &#8212; publikace v <em>Nature</em> (2023) uk&#225;zala, &#382;e CAR-T bu&#328;ky c&#237;len&#233; na uPAR (receptor urokin&#225;zy, kter&#253; je na povrchu senescen&#269;n&#237;ch bun&#283;k) dok&#225;&#382;&#237; eliminovat senescen&#269;n&#237; bu&#328;ky u my&#353;&#237; a prodlou&#382;it jejich &#382;ivot. Toto je pravd&#283;podobn&#283; budoucnost senoterapie &#8212; p&#345;&#237;m&#233;, precizn&#237; odstra&#328;ov&#225;n&#237; bun&#283;k, kter&#233; produkuj&#237; SASP-PAI-1.</p><p><strong>Plazmatick&#225; diluce / plazmafer&#233;za</strong> &#8212; v&#253;zkum UC Berkeley (Irina Conboy) uk&#225;zal, &#382;e n&#225;hrada st&#225;rnouc&#237; plazmy fyziologick&#253;m roztokem sni&#382;uje hladiny progeronick&#253;ch faktor&#367; (PAI-1, TGF-&#946;, &#946;2-mikroglobulin) a zlep&#353;uje kognitivn&#237; a svalov&#233; funkce u my&#353;&#237;. Lidsk&#233; klinick&#233; studie teprve za&#269;&#237;naj&#237;.</p><div><hr></div><p><strong>Monitoring: jak v&#283;d&#283;t, &#382;e to funguje</strong></p><p>Protokol bez m&#283;&#345;en&#237; je jen v&#237;ra. Doporu&#269;en&#233; testov&#225;n&#237;:</p><p><strong>Ka&#382;d&#233; 3 m&#283;s&#237;ce:</strong> PAI-1 antigen a aktivita, hsCRP, inzul&#237;n nala&#269;no + HOMA-IR, HbA1c, lipidov&#253; panel (triglyceridy, HDL, LDL), kompletn&#237; krevn&#237; obraz, jatern&#237; a ren&#225;ln&#237; funkce, vitamin D3.</p><p><strong>Ka&#382;d&#253;ch 6&#8211;12 m&#283;s&#237;c&#367;:</strong> TGF-&#946;1, IL-6, kortizol, IGF-1, DHEA-S, GDF-15, d&#233;lka telomer (komer&#269;n&#237; testy), epigenetick&#253; v&#283;k (GrimAge2), klotho, oxLDL, Lp(a), homocystein.</p><p><strong>C&#237;lov&#233; hodnoty PAI-1</strong></p><p>Kategorie PAI-1 antigen</p><p><strong>Optimum</strong>: &lt; 10 ng/ml, N&#237;zk&#233; riziko: 10&#8211;20 ng/ml, Hrani&#269;n&#237; &#8212; intervenovat: 20&#8211;40 ng/ml, Zv&#253;&#353;en&#253; &#8212; farmakoterapie: 40&#8211;80 ng/ml, Kritick&#253; &#8212; urgentn&#237;: &gt; 80 ng/ml</p><div><hr></div><p><strong>Z&#225;v&#283;r: Co to v&#353;echno znamen&#225;</strong></p><p>PAI-1 je neobvykl&#253; biomarker v tom smyslu, &#382;e za n&#237;m nestoj&#237; jen statistick&#225; korelace &#8212; za n&#237;m stoj&#237; mechanismus. Ch&#225;peme, jak ho stres zvy&#353;uje, jak ho inzul&#237;nov&#225; rezistence poh&#225;n&#237;, jak blokuje fibrinol&#253;zu, jak indukuje senescenci, jak chr&#225;n&#237; n&#225;dorov&#233; bu&#328;ky p&#345;ed smrt&#237;.</p><p>A ch&#225;peme, jak ho sn&#237;&#382;it.</p><p>Ami&#353;sk&#225; studie n&#225;m uk&#225;zala p&#345;irozen&#253; experiment: co se stane, kdy&#382; PAI-1 funguje jen nap&#367;l. Odpov&#283;&#271; byla jasn&#225; &#8212; lid&#233; &#382;ij&#237; d&#233;le, l&#233;pe, s m&#233;n&#283; chorobami. My nem&#225;me v&#253;hodnou mutaci. Ale m&#225;me intervence, kter&#233; &#250;&#269;inek imituj&#237;.</p><p>&#381;ivotn&#237; styl tvo&#345;&#237; z&#225;klad. Suplementy ho prohlubuj&#237;. Farmakologie ho roz&#353;i&#345;uje. A v&#253;zkum &#8212; senolytika, CAR-T senoterapie, plazmatick&#225; diluce &#8212; ukazuje, kam sm&#283;&#345;uje budoucnost.</p><p>PAI-1 nen&#237; jen &#269;&#237;slo v krevn&#237;m testu. Je to okno do toho, jak rychle st&#225;rnete &#8212; a jak moc nebo m&#225;lo m&#225;te nad procesy s n&#237;m spojen&#253;mi kontrolu.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!xyhr!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!xyhr!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png 424w, /__u/substackcdn.com/image/fetch/$s_!xyhr!, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png 424w, /__u/substackcdn.com/image/fetch/$s_!xyhr!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png 848w, /__u/substackcdn.com/image/fetch/$s_!xyhr!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png 1272w, /__u/substackcdn.com/image/fetch/$s_!xyhr!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fcd5e7638-4525-4ab0-a368-f059ba6d8fb3_1157x643.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje:</p><p><span>Sadiya S. Khan </span><em><span>et al.</span></em><span>, A null mutation in </span><em><span>SERPINE1 </span></em><span>protects against biological aging in humans. </span><em><span>Sci. Adv. </span></em><span>3, eaao1617 (2017). DOI:</span><a href="https://doi.org/10.1126/sciadv.aao1617"><span>10.1126/sciadv.aao1617</span></a></p><p>Al Shaer NSH, Tleyjeh A, Al-Attas MA, Alibrahim JH, Khan MI and Yaqinuddin A (2026) Plasminogen activator inhibitor-1 as an oncologic target: biology, therapeutic inhibitors, and clinical translation. Front. Oncol. 16:1737975. <a href="https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2026.1737975/full">DOI: 10.3389/fonc.2026.1737975</a></p>]]></content:encoded></item><item><title><![CDATA[Imunitní restart - TRIIM-X Trials Update]]></title><description><![CDATA[Srovn&#225;n&#237; p&#345;irozen&#233;ho st&#225;rnut&#237; a regenerace brzl&#237;ku]]></description><link>https://zdeneksipek.substack.com/p/imunitni-restart-trim-x-trials-update</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/imunitni-restart-trim-x-trials-update</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 28 Jun 2026 12:10:35 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!ZYBZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!ZYBZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!ZYBZ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!ZYBZ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F68406a68-9b8b-4516-9054-2bc8407f03f8_2752x1536.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>N&#237;&#382;e uveden&#253; p&#345;&#237;sp&#283;vek shrnuje nejnov&#283;j&#353;&#237; prezentaci Dr. Grega Fahyho, kter&#253; v n&#237; p&#345;edstavuje posledn&#237; v&#253;stupy z TRIIM-X Trials.</p><p><strong>1. &#218;vod do problematiky: Brzl&#237;k jako &#8222;mistrovsk&#233; hodiny&#8220; imunity</strong></p><p>Z pohledu biogerontologick&#233; architektury mus&#237;me brzl&#237;k (thymus) ch&#225;pat nikoliv jako margin&#225;ln&#237; &#382;l&#225;zu, ale jako centr&#225;ln&#237; pedagogick&#233; pracovi&#353;t&#283; imunitn&#237;ho syst&#233;mu. Je to m&#237;sto, kde doch&#225;z&#237; ke &#353;kolen&#237; a selekci elitn&#237; slo&#382;ky imunitn&#237;ho syst&#233;mu T-lymfocyt&#367;, kter&#233; tvo&#345;&#237; z&#225;kladn&#237; k&#225;men na&#353;&#237; obranyschopnosti proti patogen&#367;m a malignit&#225;m. Trag&#233;di&#237; lidsk&#233; biologie je v&#353;ak proces zvan&#253; <strong>thymick&#225; involuce</strong> &#8211; programovan&#253; z&#225;nik tohoto org&#225;nu, kter&#253; za&#269;&#237;n&#225; prakticky ihned po dosa&#382;en&#237; pohlavn&#237; dosp&#283;losti.</p><p>Data ze zdrojov&#253;ch studi&#237; vykresluj&#237; nekompromisn&#237; &#269;asovou osu &#250;padku:</p><ul><li><p>Do <strong>25 let</strong> v&#283;ku doch&#225;z&#237; k eliminaci <strong>75 %</strong> funk&#269;n&#237;ch bun&#283;k.</p></li><li><p>Do <strong>31 let</strong> zb&#253;v&#225; pouh&#253;ch <strong>10 %</strong> p&#367;vodn&#237; kapacity; zbytek je nahrazen nefunk&#269;n&#237;m tukem.</p></li></ul><p>&#8222;V&#283;t&#353;ina lid&#237; neum&#237;r&#225; p&#345;&#237;mo na st&#225;&#345;&#237; jako takov&#233;, ale na nep&#345;&#237;m&#233; d&#367;sledky involuce brzl&#237;ku. Selh&#225;n&#237; tohoto org&#225;nu znamen&#225; ztr&#225;tu schopnosti t&#283;la prov&#225;d&#283;t imunitn&#237; dozor, identifikovat rakovinn&#233; bu&#328;ky a eliminovat infekce d&#345;&#237;ve, ne&#382; se stanou fat&#225;ln&#237;mi.&#8220;</p><p>Tento biologick&#253; &#250;padek nen&#237; line&#225;rn&#237; proces, ale syst&#233;mov&#233; selh&#225;n&#237;, kter&#233; n&#225;s stav&#237; p&#345;ed nevyhnuteln&#253; imunologick&#253; kolaps, pokud nezas&#225;hneme do samotn&#233;ho mechanismu st&#225;rnut&#237;.</p><p><strong>2. P&#345;irozen&#225; cesta: Imunitn&#237; &#250;padek a &#8222;Naylor&#367;v &#250;tes&#8220;</strong></p><p>Lidsk&#253; organismus p&#345;e&#382;&#237;v&#225; dek&#225;dy po z&#225;niku brzl&#237;ku d&#237;ky extr&#233;mn&#237; dlouhov&#283;kosti T-bun&#283;k vytvo&#345;en&#253;ch v ml&#225;d&#237;. Tato pasivn&#237; rezerva je v&#353;ak k&#345;ehk&#225;. S postupuj&#237;c&#237;m v&#283;kem nar&#225;&#382;&#237;me na tzv. <strong>Naylor&#367;v &#250;tes</strong> &#8211; kritick&#253; zlom v imunitn&#237;m reperto&#225;ru (celkov&#233; diverzit&#283; antigen&#367;, kter&#233; syst&#233;m dok&#225;&#382;e rozpoznat).</p><p>Mezi <strong>62. a 78. rokem</strong> doch&#225;z&#237; k drastick&#233;mu propadu: imunitn&#237; reperto&#225;r ztr&#225;c&#237; <strong>dva &#345;&#225;dy (100n&#225;sobek)</strong> sv&#233; versality. Tento p&#225;d z &#8222;&#250;tesu&#8220; vysv&#283;tluje, pro&#269; je star&#353;&#237; organismus n&#225;hle bezbrann&#253; v&#367;&#269;i nov&#253;m hrozb&#225;m.</p><p><strong>Rizika spojen&#225; s p&#345;irozenou involuc&#237; (logaritmick&#253; n&#225;r&#367;st):</strong></p><ul><li><p><strong>Infek&#269;n&#237; mortalita:</strong> Riziko &#250;mrt&#237; na ch&#345;ipku roste mezi 10. a 70. rokem <strong>100n&#225;sobn&#283;</strong>.</p></li><li><p><strong>Pandemick&#225; zranitelnost:</strong> &#218;mrtnost na COVID-19 vykazuje identick&#253;, logaritmicky rostouc&#237; trend &#250;m&#283;rn&#283; v&#283;ku.</p></li><li><p><strong>Onkologick&#225; progrese:</strong> Riziko rakoviny (nap&#345;. prostaty) dramaticky stoup&#225; v korelaci s &#250;bytkem thymick&#233; kontroly.</p></li><li><p><strong>Vaskul&#225;rn&#237; integrita:</strong> V&#253;zkumy (nap&#345;. Wake Forest) nazna&#269;uj&#237;, &#382;e brzl&#237;k reguluje vaskul&#225;rn&#237; zdrav&#237;; jeho absence zvy&#353;uje riziko kardiovaskul&#225;rn&#237;ch &#250;mrt&#237;, kter&#225; jsou hlavn&#237; p&#345;&#237;&#269;inou mortality.</p></li></ul><p>Kl&#237;&#269;ov&#253;m v&#283;deck&#253;m poznatkem je role <strong>CD4 T-bun&#283;k</strong>, kter&#233; v ml&#225;d&#237; fyzicky p&#345;en&#225;&#353;ej&#237; telomery do senescentn&#237;ch (zest&#225;rl&#253;ch) bun&#283;k, &#269;&#237;m&#382; je &#8222;opravuj&#237;&#8220;. P&#345;i involuci brzl&#237;ku tento mechanismus zanik&#225;, co&#382; vede k nekontrolovan&#233; akumulaci bun&#283;&#269;n&#233;ho odpadu v org&#225;nech.</p><p><strong>3. Regenerativn&#237; zlom: Protokol TRIIM a obnova funkce</strong></p><p>Dlouholet&#233; dogma o nevratnosti involuce bylo vyvr&#225;ceno protokolem <strong>TRIIM</strong> (Thymus Regeneration, Immunorestoration, and Insulin Mitigation). Tento p&#345;&#237;stup p&#345;edstavuje <strong>syst&#233;mov&#253; restart</strong>, kter&#253; m&#283;n&#237; t&#283;lo z katabolick&#233;ho stavu st&#225;rnut&#237; do stavu anabolick&#233; obnovy.</p><p>J&#225;drem terapie je <strong>R&#367;stov&#253; hormon (GH)</strong>. V biogerontologii mus&#237;me odm&#237;tnout m&#253;tus, &#382;e GH je pro-aging faktor. Tento omyl vznikl jako artefakt transgenn&#237;ch model&#367; (my&#353;i s modifikac&#237; v 5. dni v&#253;voje). Ve skute&#269;nosti je st&#225;rnut&#237; v j&#225;dru <strong>katabolick&#253; proces</strong> (rozklad), kter&#233;mu GH oponuje svou anabolickou funkc&#237;, regeneruje srdce, ledviny a p&#345;edev&#353;&#237;m brzl&#237;k.</p><p><strong>Slo&#382;en&#237; protokolu:</strong></p><ol><li><p><strong>R&#367;stov&#253; hormon:</strong> Motor regenerace.</p></li><li><p><strong>DHEA a Metformin:</strong> Ochrann&#253; &#353;t&#237;t eliminuj&#237;c&#237; diabetogenn&#237; efekty GH (kontrola inzul&#237;nu a glyk&#233;mie).</p></li><li><p><strong>Zinek a Vitamin D3:</strong> Nutri&#269;n&#237; substr&#225;ty nezbytn&#233; pro maturaci T-lymfocyt&#367;.</p></li></ol><p><strong>Srovn&#225;n&#237; brzl&#237;ku (MRI 3D Rendering):</strong></p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!92I-!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 424w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 848w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 1272w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!92I-!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png" width="685" height="225" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:225,&quot;width&quot;:685,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:34242,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/203949416?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 424w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 848w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 1272w, /__u/substackcdn.com/image/fetch/$s_!92I-!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F565b088c-6297-434e-9c9f-0f0302b44d90_685x225.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p><strong>4. Srovn&#225;vac&#237; anal&#253;za: Stav &#8222;P&#345;ed&#8220; vs. &#8222;Po&#8220; terapii</strong></p><p>Regenerace nen&#237; jen struktur&#225;ln&#237;, ale funk&#269;n&#237;. Biologick&#253; v&#283;k se v tomto kontextu st&#225;v&#225; <strong>dynamick&#253;m parametrem</strong>, nikoliv fixn&#237; veli&#269;inou.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!IaYq!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 424w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 848w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 1272w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!IaYq!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png" width="684" height="476" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 424w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 848w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 1272w, /__u/substackcdn.com/image/fetch/$s_!IaYq!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F9dd1fb34-4a55-4ec3-8eb4-74ea737efa70_684x476.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Z&#225;sadn&#237;m pr&#367;lomem je schopnost protokolu zvr&#225;tit i <strong>inverzi pom&#283;ru CD4/CD8</strong>. U pacient&#367; s chronick&#253;mi infekcemi (nap&#345;. EBV), kde imunitn&#237; syst&#233;m selh&#225;v&#225; pod n&#225;porem viru, dok&#225;&#382;e TRIIM pom&#283;r normalizovat &#8211; co&#382; bylo d&#345;&#237;ve pova&#382;ov&#225;no za nemo&#382;n&#233;.</p><p><strong>5. Projevy vitality v re&#225;ln&#233;m &#382;ivot&#283;: Od bun&#283;k k v&#253;konu</strong></p><p>&#218;&#269;inky regenerace brzl&#237;ku se manifestuj&#237; skrze makroskopick&#233; zm&#283;ny, kter&#233; definujeme jako &#8222;n&#225;vrat k anabolismu&#8220;.</p><ul><li><p><strong>Fyzick&#225; s&#237;la:</strong> &#218;&#269;astn&#237;ci vykazuj&#237; pr&#367;m&#283;rn&#253; <strong>15% n&#225;r&#367;st svalov&#233; s&#237;ly</strong> bez p&#345;idan&#233;ho cvi&#269;en&#237; (ekvivalent 4&#8211;11 let omlazen&#237;). Kazuistika &#8222;Incredible Hulk&#8220; uv&#225;d&#237; mu&#382;e, kter&#253; zv&#253;&#353;il po&#269;et klik&#367; ze 120 na <strong>240</strong> za 15 m&#283;s&#237;c&#367;.</p></li><li><p><strong>Kardiovaskul&#225;rn&#237; zdrav&#237;:</strong> Zlep&#353;en&#237; <strong>VO2 max o 21 %</strong> (omlazen&#237; o <strong>22 let</strong>). Pozorov&#225;n je i pokles klidov&#233;ho tepu (nap&#345;. ze 72 na 62) a diastolick&#233;ho tlaku. P&#345;&#237;kladem je <strong>81let&#253; mu&#382;</strong>, kter&#253; po terapii za&#269;al vyhr&#225;vat 5km b&#283;&#382;eck&#233; z&#225;vody.</p></li><li><p><strong>Estetick&#233; a metabolick&#233; ukazatele:</strong> Doch&#225;z&#237; k <strong>ztmavnut&#237; &#353;ed&#253;ch vlas&#367;, vous&#367; a &#345;as</strong>. Pacienti pr&#367;m&#283;rn&#283; ztr&#225;cej&#237; <strong>4 kg tuku</strong> a z&#237;sk&#225;vaj&#237; <strong>1,3 kg svalov&#233; hmoty</strong>.</p></li><li><p><strong>Kognitivn&#237; potenci&#225;l:</strong> P&#345;edb&#283;&#382;n&#225; data ukazuj&#237; na omlazen&#237; mozku o <strong>3&#8211;4 roky</strong>, v&#269;etn&#283; n&#225;r&#367;stu b&#237;l&#233; hmoty mozkov&#233;.</p></li></ul><p><strong>6. Z&#225;v&#283;r: &#8222;milionov&#253; brzl&#237;k&#8220; a budoucnost dlouhov&#283;kosti</strong></p><p>Koncept &#8222;milionov&#233;ho brzl&#237;ku&#8220; nen&#237; sci-fi, ale medic&#237;nsk&#225; realita potvrzen&#225; daty. Regenerace tohoto org&#225;nu nen&#237; izolovan&#253;m z&#225;sahem, ale katalyz&#225;torem pro celkov&#233; zvr&#225;cen&#237; katabolick&#233;ho &#250;padku spojen&#233;ho se st&#225;&#345;&#237;m. Pokud dok&#225;&#382;eme regenerovat brzl&#237;k, neobnovujeme pouze imunitu; restartujeme c&#233;vn&#237; syst&#233;m, regenerujeme bu&#328;ky a m&#283;n&#237;me trajektorii lidsk&#233;ho &#382;ivota.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!s8Rp!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 424w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 848w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 1272w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!s8Rp!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png" width="1153" height="643" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 424w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 848w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 1272w, /__u/substackcdn.com/image/fetch/$s_!s8Rp!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe659deb0-d3fa-4c31-add9-01c5cb9e0e26_1153x643.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Biologick&#253; v&#283;k je dynamick&#253; parametr &#8211; a my se jej pr&#225;v&#283; u&#269;&#237;me ovl&#225;dat.</p><p>M&#367;j protokol regenerace brzl&#237;ku je <a href="/__u/zdeneksipek.substack.com/p/omlazeni-imunitniho-systemu">zde</a>.</p><p>M&#233; procento lymfocyt&#367; se dle m&#283;&#345;en&#237; dr&#382;&#237; v tomto roce stabiln&#283; kolem nadpr&#367;m&#283;rn&#253;ch 46-48% a lymfocyty tak dominuj&#237; m&#233;mu imunitn&#237;mu profilu (CRP je konstantn&#283; pod 0.4 mg/l).</p><p>Dal&#353;&#237; zast&#225;vka&#8230;longevity escape velocity? </p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!0vd7!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 424w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 848w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 1272w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!0vd7!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png" width="1158" height="640" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 424w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 848w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 1272w, /__u/substackcdn.com/image/fetch/$s_!0vd7!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4afe9e4e-bacd-4a51-8669-68966059df3a_1158x640.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje:</p><p><a href="https://www.youtube.com/watch?v=wknFx0zhQcA">We Found the &#8216;Off Switch&#8217; for Aging - Dr. Greg Fahy. TRIIM Trial 2026 Update.</a></p>]]></content:encoded></item><item><title><![CDATA[COC protokol]]></title><description><![CDATA[Z&#225;kladn&#237; protokol komplement&#225;rn&#237; l&#233;&#269;by (prim&#225;rn&#283; v l&#233;&#269;b&#283; glioblastomu)]]></description><link>https://zdeneksipek.substack.com/p/coc-protokol</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/coc-protokol</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 27 Jun 2026 08:27:10 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!Kz57!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b4d2673-8754-4a64-81da-cabf28fcf25f_1536x1024.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Kz57!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b4d2673-8754-4a64-81da-cabf28fcf25f_1536x1024.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Kz57!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b4d2673-8754-4a64-81da-cabf28fcf25f_1536x1024.png 424w, /__u/substackcdn.com/image/fetch/$s_!Kz57!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!Kz57!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0b4d2673-8754-4a64-81da-cabf28fcf25f_1536x1024.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tento &#269;l&#225;nek analyzuje metodologii a v&#253;sledky studie METRICS, kter&#225; zkoum&#225; vyu&#382;it&#237; &#269;ty&#345; n&#237;zkon&#225;kladov&#253;ch l&#233;k&#367; mimo schv&#225;lenou indikaci (off-label) jako dopl&#328;kovou l&#233;&#269;bu u glioblastomu (GBM). Sou&#269;asn&#253; syst&#233;m v&#253;voje onkologick&#253;ch l&#233;k&#367; je ekonomicky neudr&#382;iteln&#253; a u l&#233;k&#367; s pro&#353;l&#253;m patentem chyb&#237; finan&#269;n&#237; motivace k prov&#225;d&#283;n&#237; n&#225;kladn&#253;ch randomizovan&#253;ch kontrolovan&#253;ch studi&#237; (RCT). Studie METRICS vyu&#382;&#237;v&#225; konceptu &#8222;pluralistick&#253;ch d&#367;kaz&#367;&#8220; a triangulace dat k p&#345;eklenut&#237; t&#233;to mezery. Retrospektivn&#237; anal&#253;za 95 pacient&#367; s GBM prok&#225;zala v&#253;znamn&#233; <strong>prodlou&#382;en&#237; medi&#225;nu celkov&#233;ho p&#345;e&#382;it&#237; na 27,1 m&#283;s&#237;ce</strong> ve srovn&#225;n&#237; s 14,8&#8211;15,8 m&#283;s&#237;ce u standardn&#237; l&#233;&#269;by. Protokol je pacienty dob&#345;e tolerov&#225;n a vykazuje p&#345;&#237;zniv&#253; bezpe&#269;nostn&#237; profil.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>Anal&#253;za probl&#233;mu a onkologick&#253; kontext</strong></p><p>V&#253;voj nov&#253;ch onkologick&#253;ch l&#233;k&#367; trv&#225; v pr&#367;m&#283;ru p&#345;es 10 let a n&#225;klady dosahuj&#237; 684 milion&#367; a&#382; 2,7 miliardy USD na jeden l&#233;k. Navzdory vysok&#253;m n&#225;klad&#367;m mnoho nov&#253;ch l&#233;k&#367; vstupuje na trh bez definitivn&#237;ch d&#367;kaz&#367; o p&#345;&#237;nosu pro celkov&#233; p&#345;e&#382;it&#237; nebo kvalitu &#382;ivota.</p><p>Vyu&#382;it&#237; st&#225;vaj&#237;c&#237;ch licencovan&#253;ch l&#233;k&#367; pro nov&#233; onkologick&#233; indikace (repurposing) nab&#237;z&#237; rychlej&#353;&#237; a n&#225;kladov&#283; efektivn&#283;j&#353;&#237; cestu, proto&#382;e tyto l&#233;ky maj&#237;:</p><ul><li><p>Dob&#345;e zaveden&#233; bezpe&#269;nostn&#237; profily.</p></li><li><p>Rozs&#225;hl&#233; preklinick&#233; a klinick&#233; &#250;daje o pou&#382;it&#237; u lid&#237;.</p></li><li><p>N&#237;zkou cenu d&#237;ky dostupnosti generik.</p></li></ul><p>Hlavn&#237; p&#345;ek&#225;&#382;kou je v&#353;ak absence komer&#269;n&#237;ho z&#225;jmu o financov&#225;n&#237; f&#225;z&#237; III klinick&#253;ch studi&#237; u l&#233;k&#367; bez patentov&#233; ochrany, co&#382; vytv&#225;&#345;&#237; &#8222;d&#367;kazovou mezeru&#8220; br&#225;n&#237;c&#237; jejich &#353;ir&#353;&#237;mu klinick&#233;mu vyu&#382;it&#237;.</p><p><strong>Protokol COC: Adjuvantn&#237; metabolick&#225; kombinace</strong></p><p>Studie METRICS (NCT02201381) vyu&#382;&#237;v&#225; kombinaci &#269;ty&#345; off-label l&#233;k&#367; zvolen&#253;ch na z&#225;klad&#283; jejich schopnosti modulovat metabolick&#233; dr&#225;hy rakovinn&#253;ch bun&#283;k.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!lJb1!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 424w, /__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 848w, /__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 424w, /__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 848w, /__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 1272w, /__u/substackcdn.com/image/fetch/$s_!lJb1!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbff25f84-1036-4a44-9b2a-b5647f08400a_800x391.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Kl&#237;&#269;ov&#233; vlastnosti kombinace:</strong></p><ul><li><p><strong>Penetrace hematoencefalickou bari&#233;rou:</strong> V&#353;echny &#269;ty&#345;i l&#233;ky maj&#237; schopnost pronikat do centr&#225;ln&#237;ho nervov&#233;ho syst&#233;mu, co&#382; je kritick&#233; pro l&#233;&#269;bu mozkov&#253;ch n&#225;dor&#367;.</p></li><li><p><strong>Senzitizace:</strong> Preklinick&#233; studie nazna&#269;uj&#237;, &#382;e tyto l&#233;ky mohou zvy&#353;ovat citlivost n&#225;dorov&#253;ch bun&#283;k na standardn&#237; chemoterapii a radioterapii (radiosenzitizace a chemosenzitizace).</p></li><li><p><strong>C&#237;len&#237; na kmenov&#233; bu&#328;ky:</strong> Metformin a doxycyklin specificky naru&#353;uj&#237; metabolismus rakovinn&#253;ch kmenov&#253;ch bun&#283;k, kter&#233; jsou zodpov&#283;dn&#233; za rezistenci a recidivu.</p></li></ul><p><strong>Metodologie: Pluralistick&#233; d&#367;kazy a studie METRICS</strong></p><p>Vzhledem k tomu, &#382;e RCT jsou v tomto p&#345;&#237;pad&#283; ekonomicky ne&#382;ivotaschopn&#233; a n&#283;kdy eticky kontroverzn&#237; (pou&#382;it&#237; placeba), navrhuj&#237; auto&#345;i p&#345;&#237;stup zalo&#382;en&#253; na pluralismu a triangulaci.</p><ol><li><p><strong>Metodologick&#253; pluralismus:</strong> Zahrnuje generov&#225;n&#237; dat z r&#367;zn&#253;ch zdroj&#367; (in silico, in vitro, in vivo modely, observa&#269;n&#237; studie, studie kvality &#382;ivota).</p></li><li><p><strong>Triangulace:</strong> Proces vz&#225;jemn&#233;ho porovn&#225;v&#225;n&#237; n&#225;lez&#367; z r&#367;zn&#253;ch zdroj&#367; dat za &#250;&#269;elem pos&#237;len&#237; interpretace a validity v&#253;sledk&#367;.</p></li><li><p><strong>Studie METRICS:</strong> Jedn&#225; se o otev&#345;enou, nerandomizovanou studii s jedn&#237;m ramenem (single-arm), kter&#225; je financov&#225;na p&#345;&#237;mo &#250;&#269;astn&#237;ky (participant-funded research). </p></li></ol><p><strong>Klinick&#233; v&#253;sledky u glioblastomu (GBM)</strong></p><p>Retrospektivn&#237; anal&#253;za se zam&#283;&#345;ila na 95 pacient&#367; s pokro&#269;il&#253;m GBM (stadium IV), kte&#345;&#237; nav&#353;t&#283;vovali kliniku v letech 2013&#8211;2016 a u&#382;&#237;vali protokol COC jako dopln&#283;k ke standardn&#237; p&#233;&#269;i (SoC).</p><p><strong>&#218;&#269;innost (P&#345;e&#382;it&#237;)</strong></p><p>V&#253;sledky studie METRICS vykazuj&#237; ve srovn&#225;n&#237; s historick&#253;mi kohortami (nap&#345;. studie EORTC nebo data Public Health England) v&#253;razn&#233; zlep&#353;en&#237;.</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!m1sI!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!m1sI!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!m1sI!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png" width="773" height="236" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png 424w, /__u/substackcdn.com/image/fetch/$s_!m1sI!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png 848w, /__u/substackcdn.com/image/fetch/$s_!m1sI!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png 1272w, /__u/substackcdn.com/image/fetch/$s_!m1sI!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F0ce0f9bd-c526-469d-acc2-4b13e57f949e_773x236.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!P9NM!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 424w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 848w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 1272w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!P9NM!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png" width="569" height="391" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 424w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 848w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 1272w, /__u/substackcdn.com/image/fetch/$s_!P9NM!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb15a1281-3359-42e5-9ca3-7b7ad8e5c9b8_569x391.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">Osa X - m&#283;s&#237;ce po diagn&#243;ze / Osa Y - procento p&#345;e&#382;iv&#353;&#237;ch</figcaption></figure></div><p><strong>Bezpe&#269;nost a tolerance</strong></p><ul><li><p><strong>Celkov&#225; tolerance:</strong> 85,3 % pacient&#367; bylo schopno u&#382;&#237;vat v&#353;echny &#269;ty&#345;i l&#233;ky sou&#269;asn&#283; bez pot&#237;&#382;&#237;.</p></li><li><p><strong>Ne&#382;&#225;douc&#237; &#250;&#269;inky:</strong> Profil odpov&#237;dal zn&#225;m&#253;m &#250;&#269;ink&#367;m licencovan&#253;ch l&#233;k&#367;. Nej&#269;ast&#283;j&#353;&#237; byly gastrointestin&#225;ln&#237; pot&#237;&#382;e (pr&#367;jem, nad&#253;m&#225;n&#237;) u metforminu a bolesti sval&#367; u statinu.</p></li><li><p><strong>Z&#225;va&#382;n&#233; ne&#382;&#225;douc&#237; &#250;&#269;inky (SAE):</strong> Nebyly hl&#225;&#353;eny &#382;&#225;dn&#233; SAE souvisej&#237;c&#237; s l&#233;ky.</p></li><li><p><strong>Ukon&#269;en&#237; l&#233;&#269;by:</strong> Pouze 11,5 % pacient&#367; muselo p&#345;eru&#353;it u&#382;&#237;v&#225;n&#237; jednoho nebo v&#237;ce l&#233;k&#367; kv&#367;li vedlej&#353;&#237;m &#250;&#269;ink&#367;m nebo v&#253;sledk&#367;m krevn&#237;ch test&#367;.</p></li></ul><p><strong>Z&#225;v&#283;r a dal&#353;&#237; kroky</strong></p><p>Studie METRICS p&#345;edstavuje d&#367;kaz konceptu (proof-of-concept) pro generov&#225;n&#237; klinick&#253;ch dat v situac&#237;ch, kde tradi&#269;n&#237; RCT nejsou provediteln&#233;. P&#345;edb&#283;&#382;n&#233; v&#253;sledky u glioblastomu jsou povzbudiv&#233; a nazna&#269;uj&#237; potenci&#225;l pro signifikantn&#237; prodlou&#382;en&#237; &#382;ivota pacient&#367; p&#345;i zachov&#225;n&#237; dobr&#233; tolerance l&#233;&#269;by.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!qNWV!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F49a74e2f-d528-451a-8dfa-fe82d1c738aa_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!qNWV!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!qNWV!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F49a74e2f-d528-451a-8dfa-fe82d1c738aa_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>Standardn&#237; COC protokol</strong></p><p><strong>D&#225;vkov&#225;n&#237;</strong></p><p>&#8226; <strong>Atorvastatin:</strong> 40 mg jednou denn&#283; po dobu dvou t&#253;dn&#367;, po dvou t&#253;dnech zv&#253;&#353;it na 80 mg jednou denn&#283;.</p><p> &#8226; <strong>Metformin:</strong> 500 mg jednou denn&#283; po dobu dvou t&#253;dn&#367;, po dvou t&#253;dnech zv&#253;&#353;it na 500 mg dvakr&#225;t denn&#283;. </p><p>&#8226; <strong>Mebendazol:</strong> 100 mg jednou denn&#283; po dobu jednoho m&#283;s&#237;ce, pot&#233; p&#345;ej&#237;t na Doxycyklin 100 mg jednou denn&#283;.</p><p>&#8226; <strong>Doxycyklin:</strong> 100 mg jednou denn&#283; po dobu jednoho m&#283;s&#237;ce (po dokon&#269;en&#237; m&#283;s&#237;&#269;n&#237; k&#250;ry Mebendazolu).</p><p>&#8226; <em>[Mebendazol a Doxycyklin st&#345;&#237;dejte m&#283;s&#237;c po m&#283;s&#237;ci &#8211; tzn. prvn&#237; m&#283;s&#237;c Mebendazol, druh&#253; m&#283;s&#237;c Doxycyklin, t&#345;et&#237; m&#283;s&#237;c Mebendazol atd.]</em></p><p>Jak u&#382;&#237;vat</p><p><strong>B&#283;hem prvn&#237;ch dvou t&#253;dn&#367;:</strong> </p><p>&#8226; <strong>Atorvastatin 40mg:</strong> 1 tableta ve&#269;er. </p><p>&#8226; <strong>Metformin 500mg:</strong> 1 tableta r&#225;no (se sn&#237;dan&#237;). </p><p>&#8226; <strong>Mebendazol 100mg:</strong> 1 tableta r&#225;no (se sn&#237;dan&#237; nebo s ob&#283;dem).</p><p><strong>Po dvou t&#253;dnech:</strong> </p><p>&#8226; <strong>Atorvastatin 80mg:</strong> 2 tablety (40mg) u&#382;&#237;t spole&#269;n&#283; ve&#269;er. </p><p>&#8226; <strong>Metformin:</strong> 1 tableta (500mg) r&#225;no (se sn&#237;dan&#237;) a 1 tableta (500mg) ve&#269;er (s ve&#269;e&#345;&#237;). </p><p>&#8226; <strong>Mebendazol 100mg:</strong> 1 tableta se sn&#237;dan&#237; nebo s ob&#283;dem. <em>(Nezapome&#328;te na m&#283;s&#237;&#269;n&#237; st&#345;&#237;d&#225;n&#237; s Doxycyklinem, jak je pops&#225;no v&#253;&#353;e).</em></p><p><em>Jako alternativu k metforminu lze pou&#382;&#237;t berberin, jako n&#225;hradu atorvastatinu pak &#269;ervenou fermentovanou r&#253;&#382;i.</em></p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje:</p><p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6610246/">Agrawal S, Vamadevan P, Mazibuko N, Bannister R, Swery R, Wilson S, Edwards S. A New Method for Ethical and Efficient Evidence Generation for Off-Label Medication Use in Oncology (A Case Study in Glioblastoma). Front Pharmacol. 2019 Jun 27;10:681. doi: 10.3389/fphar.2019.00681. PMID: 31316378; PMCID: PMC6610246.</a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p><p></p>]]></content:encoded></item><item><title><![CDATA[Glioblastoma multiforme III.]]></title><description><![CDATA[Strategick&#253; r&#225;mec personalizovan&#233; koktejlov&#233; terapie glioblastomu prof. Bena Williamse publikovan&#233; v jeho knize Jak p&#345;e&#382;&#237;t termin&#225;ln&#237; rakovinu (Surviving Terminal Cancer)]]></description><link>https://zdeneksipek.substack.com/p/glioblastoma-multiforme-iii</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/glioblastoma-multiforme-iii</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 20 Jun 2026 07:12:13 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!pbXl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!pbXl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 424w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 848w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!pbXl!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png" width="676" height="440" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 424w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 848w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pbXl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa171c55b-88f9-4343-98ba-29e9c8d64357_676x440.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Filosofick&#253; a kritick&#253; z&#225;klad: Selh&#225;n&#237; paradigmatu &#8222;jedna terapie po druh&#233;&#8220;</strong></p><p>Sou&#269;asn&#253; onkologick&#253; p&#345;&#237;stup k l&#233;&#269;b&#283; glioblastomu multiforme (GBM) je v mnoha ohledech vn&#237;m&#225;n jako smrt&#237;c&#237; nikoliv jen kv&#367;li biologick&#233; podstat&#283; nemoci samotn&#233;, ale kv&#367;li patologick&#233; rigidit&#283; klinick&#253;ch protokol&#367;. Standardn&#237; p&#233;&#269;e se omezuje na postupy, kter&#233; maj&#237; u GBM minim&#225;ln&#237; &#250;sp&#283;&#353;nost, p&#345;i&#269;em&#382; syst&#233;m vn&#237;m&#225; tuto diagn&#243;zu jako statisticky v&#237;cem&#233;n&#283; nevyhnuteln&#253; rozsudek smrti. Tato stagnace je p&#345;&#237;m&#253;m d&#367;sledkem dogmatick&#233;ho lp&#283;n&#237; na metod&#225;ch, kter&#233; v z&#225;sad&#283; ignoruj&#237; dynamickou a agresivn&#237; povahu onemocn&#283;n&#237;.</p><p>Konven&#269;n&#237; onkologick&#225; metoda sekven&#269;n&#237;ho postupu &#8211; tedy nasazov&#225;n&#237; jedn&#233; l&#225;tky po druh&#233; a &#269;ek&#225;n&#237; na jej&#237; selh&#225;n&#237; p&#345;ed p&#345;echodem k dal&#353;&#237; &#8211; je (nejen) u glioblastomu fundament&#225;ln&#283; iracion&#225;ln&#237; a strategicky chybn&#225;. GBM je heterogenn&#237;, rychle mutuj&#237;c&#237; entita. Pokud pod&#225;v&#225;me l&#233;ky izolovan&#283;, fakticky na n&#225;dor vyv&#237;j&#237;me <strong>evolu&#269;n&#237; selek&#269;n&#237; tlak</strong>. Likvidujeme pouze citliv&#233; bu&#328;ky, zat&#237;mco t&#283;m rezistentn&#237;m poskytujeme &#269;as a prostor k evolu&#269;n&#237; adaptaci a proliferaci. Tento proces nahr&#225;v&#225; vzniku vysoce virulentn&#237; bun&#283;&#269;n&#233; populace, kter&#225; je v&#367;&#269;i n&#225;sledn&#233; l&#233;&#269;b&#283; imunn&#237;. Konven&#269;n&#237; onkologie tak nep&#345;&#237;mo asistuje n&#225;doru p&#345;i hled&#225;n&#237; jeho nejodoln&#283;j&#353;&#237; formy. </p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!aiKi!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6ba166b9-c3df-478b-9de0-7c721561d574_1238x672.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!aiKi!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6ba166b9-c3df-478b-9de0-7c721561d574_1238x672.png 424w, /__u/substackcdn.com/image/fetch/$s_!aiKi!, 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/__u/substackcdn.com/image/fetch/$s_!aiKi!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F6ba166b9-c3df-478b-9de0-7c721561d574_1238x672.png 1456w" sizes="100vw"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Pro pacienta m&#225; toto sekven&#269;n&#237; selh&#225;v&#225;n&#237; fat&#225;ln&#237; d&#367;sledky: vy&#269;erp&#225;n&#237; vit&#225;ln&#237;ch rezerv organismu bez re&#225;ln&#233;ho dlouhodob&#233;ho terapeutick&#233;ho zisku. P&#345;echod k agresivn&#237; simult&#225;nn&#237; terapii, kter&#225; &#250;to&#269;&#237; na v&#237;ce front&#225;ch najednou, je proto strategickou nezbytnost&#237; pro kohokoliv, kdo usiluje o dlouhodobou remisi.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>Racion&#225;ln&#237; design &#8222;l&#233;kov&#233;ho koktejlu&#8220;: Lekce z virologie a onkogeneze</strong></p><p>Strategick&#253; v&#253;znam synergie spo&#269;&#237;v&#225; v pochopen&#237;, &#382;e glioblastom nen&#237; statickou masou, ale syst&#233;mov&#253;m, rychle se m&#283;n&#237;c&#237;m c&#237;lem. </p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!yDDU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fad5e50b3-39d1-4f65-91e6-fefb0d2e7807_766x342.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!yDDU!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fad5e50b3-39d1-4f65-91e6-fefb0d2e7807_766x342.png 424w, /__u/substackcdn.com/image/fetch/$s_!yDDU!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!yDDU!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fad5e50b3-39d1-4f65-91e6-fefb0d2e7807_766x342.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Sou&#269;asn&#233; klinick&#233; studie f&#225;ze III z&#225;sadn&#283; selh&#225;vaj&#237; v zachycen&#237; t&#283;chto synergi&#237;. Jsou obvykle navr&#382;eny k testov&#225;n&#237; jedn&#233; izolovan&#233; molekuly a koktejlov&#233; terapie jsou tak vesm&#283;s ignorov&#225;ny. Pro pacienta s termin&#225;ln&#237; diagn&#243;zou je slep&#233; n&#225;sledov&#225;n&#237; Evidence-Based Medicine (EBM) cestou k pr&#367;m&#283;rn&#233;mu (tedy tragick&#233;mu) v&#253;sledku. Koktejl nen&#237; n&#225;hodn&#253;m v&#253;b&#283;rem, ale precizn&#283; c&#237;lenou sm&#283;s&#237; s konkr&#233;tn&#237;mi komplement&#225;rn&#237;mi mechanismy.</p><p><strong>Kl&#237;&#269;ov&#233; komponenty terapeutick&#233;ho protokolu a jejich mechanismy</strong></p><p>&#218;sp&#283;&#353;n&#225; strategie vy&#382;aduje integraci vysoce cytotoxick&#253;ch l&#225;tek s n&#237;zko-toxick&#253;mi adjuvanty, kter&#233; moduluj&#237; mikroprost&#345;ed&#237; n&#225;doru a blokuj&#237; &#250;nikov&#233; cesty.</p><ul><li><p><strong>Standardn&#237; chemoterapie (TMZ, BCNU, PCV):</strong> P&#345;edstavuje prim&#225;rn&#237; destruk&#269;n&#237; s&#237;lu. TMZ a BCNU (karmustin) prostupuj&#237; hematoencefalickou bari&#233;rou a naru&#353;uj&#237; synt&#233;zu DNA.</p></li><li><p><strong>Tamoxifen ve vysok&#253;ch d&#225;vk&#225;ch:</strong> Z&#225;sadn&#237; je <strong>vysokod&#225;vkov&#253; protokol,</strong> kter&#253; je &#345;&#225;dov&#283; vy&#353;&#353;&#237; ne&#382; u rakoviny prsu. V t&#283;chto d&#225;vk&#225;ch p&#367;sob&#237; jako inhibitor protein kin&#225;zy C (PKC), co&#382; je enzymatick&#253; proces kl&#237;&#269;ov&#253; pro hyperaktivn&#237; d&#283;len&#237; gliomov&#253;ch bun&#283;k, a z&#225;rove&#328; potencuje &#250;&#269;inek chemoterapie.</p></li><li><p><strong>Accutane (Isotretinoin):</strong> Forma vitaminu A, kter&#225; blokuje receptory epiderm&#225;ln&#237;ho r&#367;stov&#233;ho faktoru (EGFR), omezuje sign&#225;ly k r&#367;stu a nut&#237; bu&#328;ky k diferenciaci.</p></li><li><p><strong>Verapamil a inhibice P-glykoproteinu:</strong> Jako blok&#225;tor v&#225;pn&#237;kov&#253;ch kan&#225;l&#367; m&#225; Verapamil kritickou roli v inhibici <strong>P-glykoproteinu</strong> &#8211; &#8222;pumpy&#8220;, kter&#225; aktivn&#283; vypuzuje chemoterapeutika z nitra bu&#328;ky. Jeho nasazen&#237; &#345;e&#353;&#237; probl&#233;m multidrogov&#233; rezistence (MDR).</p></li><li><p><strong>GLA (Kyselina gama-linolenov&#225;):</strong> &#268;asto ignorovan&#225; p&#345;&#237;le&#382;itost. Tato esenci&#225;ln&#237; mastn&#225; kyselina (obsa&#382;en&#225; v pupalkov&#233;m &#269;i brutn&#225;kov&#233;m oleji) vykazuje selektivn&#237; toxicitu v&#367;&#269;i n&#225;dorov&#253;m bu&#328;k&#225;m a v kombinaci s dal&#353;&#237;mi l&#225;tkami zvy&#353;uje celkovou cytotoxicitu koktejlu.</p></li><li><p><strong>Melatonin a PSK (v&#253;ta&#382;ek z hub):</strong> Strategick&#233; pos&#237;len&#237; imunitn&#237;ho syst&#233;mu. PSK (polysacharid krestin) prokazateln&#283; prodlu&#382;uje p&#345;e&#382;it&#237; d&#237;ky imunomodulaci, zat&#237;mco melatonin chr&#225;n&#237; zdrav&#233; bu&#328;ky a zvy&#353;uje senzitivitu n&#225;doru k l&#233;&#269;b&#283;.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!pg47!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!pg47!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!pg47!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F11de05d2-348f-4f42-b43b-10c68d116eff_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tyto mechanismy pracuj&#237; v synergii: Verapamil &#8222;uzamkne&#8220; BCNU uvnit&#345; bu&#328;ky, GLA oslab&#237; bun&#283;&#269;nou membr&#225;nu a vysokod&#225;vkov&#253; Tamoxifen paralyzuje vnit&#345;n&#237; sign&#225;ln&#237; dr&#225;hy. Tato kombinovan&#225; ofenz&#237;va omezuje n&#225;doru prostor pro adaptaci.</p><p><strong>Praktick&#225; aplikace: P&#345;esn&#233; d&#225;vkov&#225;n&#237;, &#269;asov&#225;n&#237; a management toxicity</strong></p><p><strong>&#268;asov&#233; sch&#233;ma a p&#345;ehled l&#225;tek</strong></p><p>Williams zah&#225;jil sv&#367;j kombinovan&#253; re&#382;im b&#283;hem oza&#345;ov&#225;n&#237; a pokra&#269;oval v n&#283;m i v pr&#367;b&#283;hu &#353;esti cykl&#367; chemoterapie, kter&#233; absolvoval b&#283;hem jednoho roku.</p><ul><li><p><strong>Tamoxifen:</strong> Za&#269;al jej u&#382;&#237;vat v &#269;ervnu 1995 p&#345;ed prvn&#237; chemoterapi&#237;. U&#382;&#237;v&#225;n byl <strong>nep&#345;etr&#382;it&#283;</strong> po dobu nejm&#233;n&#283; dvou let.</p></li><li><p><strong>Accutane (Isotretinoin):</strong> P&#345;id&#225;n do re&#382;imu pozd&#283;ji. U&#382;&#237;v&#225;n v cyklech: <strong>3 t&#253;dny u&#382;&#237;v&#225;n&#237; a 1 t&#253;den pauza</strong>. T&#253;denn&#237; pauza byla pl&#225;nov&#225;na tak, aby se nekryla s aktivn&#237; chemoterapi&#237; (kv&#367;li antioxida&#269;n&#237;m vlastnostem).</p></li><li><p><strong>Verapamil:</strong> U&#382;&#237;v&#225;n pouze v <strong>t&#253;denn&#237;ch &#250;sec&#237;ch obklopuj&#237;c&#237;ch pod&#225;n&#237; chemoterapie BCNU</strong> pro zv&#253;&#353;en&#237; jej&#237; &#250;&#269;innosti.</p></li><li><p><strong>Gamma-linolenov&#225; kyselina (GLA):</strong> P&#345;id&#225;na koncem roku 1995. U&#382;&#237;v&#225;na denn&#283;.</p></li><li><p><strong>Melatonin a PSK (v&#253;ta&#382;ek z hub):</strong> P&#345;id&#225;ny v srpnu 1995 p&#345;ed druh&#253;m kolem chemoterapie, u&#382;&#237;v&#225;ny denn&#283;.</p></li><li><p><strong>Genistein (s&#243;jov&#253; extrakt):</strong> P&#345;id&#225;n do re&#382;imu pozd&#283;ji, u&#382;&#237;v&#225;n denn&#283;.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!kEjU!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a0a221b-9d4d-4f23-8c51-b162768523af_1243x674.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!kEjU!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a0a221b-9d4d-4f23-8c51-b162768523af_1243x674.png 424w, /__u/substackcdn.com/image/fetch/$s_!kEjU!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a0a221b-9d4d-4f23-8c51-b162768523af_1243x674.png 848w, /__u/substackcdn.com/image/fetch/$s_!kEjU!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a0a221b-9d4d-4f23-8c51-b162768523af_1243x674.png 1272w, 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/__u/substackcdn.com/image/fetch/$s_!kEjU!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8a0a221b-9d4d-4f23-8c51-b162768523af_1243x674.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>P&#345;esn&#233; d&#225;vkov&#225;n&#237; </strong></p><p>Williams uv&#225;d&#237; konkr&#233;tn&#237; mno&#382;stv&#237; u n&#225;sleduj&#237;c&#237;ch l&#225;tek:</p><ul><li><p><strong>Tamoxifen:</strong> P&#367;vodn&#283; mu l&#233;ka&#345; p&#345;edepsal 180 mg denn&#283;, ale Williams d&#225;vku <strong>zv&#253;&#353;il</strong> (dopl&#328;oval si jej n&#225;kupem v Mexiku), aby odpov&#237;dala klinick&#253;m studi&#237;m pro mozkov&#233; n&#225;dory. Poznamenal, &#382;e jeho d&#225;vka byla <strong>desetin&#225;sobkem</strong> b&#283;&#382;n&#233; d&#225;vky pro rakovinu prsu (co&#382; by odpov&#237;dalo p&#345;ibli&#382;n&#283; <strong>200 mg denn&#283;</strong>).</p></li><li><p><strong>Gamma-linolenov&#225; kyselina (GLA):</strong> Williams u&#382;&#237;val <strong>10 kapsl&#237; brutn&#225;kov&#233;ho oleje denn&#283;</strong>, aby dos&#225;hl celkov&#233; d&#225;vky <strong>2 g a&#382; 2,5 g GLA denn&#283;</strong>.</p></li><li><p><strong>Accutane:</strong> P&#345;esnou mg d&#225;vku pro sebe v textu neuv&#225;d&#237;, ale zmi&#328;uje, &#382;e v klinick&#233; studii se pou&#382;&#237;valy &#8222;vysok&#233; d&#225;vky&#8220; a on se &#345;&#237;dil protokolem Dr. Yunga z M.D. Anderson.</p></li><li><p><strong>Melatonin:</strong> Uv&#225;d&#237;, &#382;e klinick&#233; studie pou&#382;&#237;valy <strong>20 mg denn&#283;</strong>, co&#382; m&#283;lo v&#253;razn&#253; vliv na p&#345;e&#382;it&#237;. Ve studi&#237;ch se v sou&#269;asnosti vyskytuj&#237; <strong>p&#283;tkr&#225;t (100mg), desetkr&#225;t (200mg) </strong>, ale tak&#233; a&#382; stokr&#225;t <strong>vy&#353;&#353;&#237; d&#225;vky (1000-2000mg)</strong>. </p></li><li><p><strong>PSK/Coriolus</strong>: Doporu&#269;en&#225; d&#225;vka je obvykle <strong>2000mg denn&#283;</strong>.</p></li><li><p><strong>Verapamil:</strong> D&#225;vku upravoval podle tlaku &#8211; sni&#382;oval ji, pokud mu krevn&#237; tlak klesl p&#345;&#237;li&#353; n&#237;zko.</p></li></ul><p><strong>Chemoterapeutick&#253; pl&#225;n</strong></p><p>Williams b&#283;hem roku podstoupil celkem <strong>6 cykl&#367; chemoterapie</strong>:</p><ol><li><p><strong>1. cyklus (&#269;ervenec 1995):</strong> BCNU (t&#345;&#237;denn&#237; k&#250;ra).</p></li><li><p><strong>2. a 3. cyklus (srpen/z&#225;&#345;&#237; 1995):</strong> Re&#382;im PCV (prokarbazin, CCNU, vinkristin).</p></li><li><p><strong>4. a 5. cyklus (zima 1995/1996):</strong> N&#225;vrat k BCNU.</p></li><li><p><strong>6. cyklus (jaro 1996):</strong> Z&#225;v&#283;re&#269;n&#253; cyklus PCV.</p></li></ol><p>Pro zm&#237;rn&#283;n&#237; vedlej&#353;&#237;ch &#250;&#269;ink&#367; chemoterapie (nevolnosti) u&#382;&#237;val l&#233;k <strong>Zofran</strong>. K prevenci krevn&#237;ch sra&#382;enin (zp&#367;soben&#253;ch vysok&#253;mi d&#225;vkami Tamoxifenu) u&#382;&#237;val <strong>dva aspiriny denn&#283;</strong>.</p><p>&#218;sp&#283;ch protokolu z&#225;vis&#237; na precizn&#237; opera&#269;n&#237; exekuci. Koktejl nen&#237; pouhou suplementac&#237;, ale &#345;&#237;zen&#253;m &#250;tokem na biologick&#253; syst&#233;m.</p><ul><li><p><strong>Cyklov&#225;n&#237; l&#225;tek:</strong> Accutane vy&#382;aduje pulsn&#237; pod&#225;v&#225;n&#237; (3 t&#253;dny u&#382;&#237;v&#225;n&#237;, 1 t&#253;den pauza), aby se zabr&#225;nilo metabolick&#233; adaptaci organismu na l&#225;tku. Chemoterapie se aplikuje v korelaci s t&#283;mito cykly pro maximalizaci terapeutick&#233;ho tlaku.</p></li><li><p><strong>Management krevn&#237;ho obrazu a krevn&#237;ch sra&#382;enin:</strong> Agresivn&#237; polyfarmakologie vy&#382;aduje t&#253;denn&#237; monitoring neutropenie a an&#233;mie. Specifick&#253;m rizikem vysokod&#225;vkov&#233;ho Tamoxifenu je tromboembolie. Strategick&#253;m &#345;e&#353;en&#237;m je kombinace <strong>denn&#237; d&#225;vky aspirinu</strong> a aktivn&#237;ho pohybu (nap&#345;. ka&#382;dodenn&#237; proch&#225;zky), co&#382; efektivn&#283; sni&#382;uje riziko fat&#225;ln&#237;ch krevn&#237;ch sra&#382;enin. Osoby n&#225;chyln&#233; ke vzniku krevn&#237;ch sra&#382;enin by nem&#283;ly o nasazen&#237; Tamoxifenu v&#367;bec uva&#382;ovat!</p></li><li><p><strong>Logistika a &#8222;off-label&#8220; strategie:</strong> Pacient mus&#237; vyu&#382;&#237;t glob&#225;ln&#237; trh tam, kde lok&#225;ln&#237; regulace (FDA/S&#218;KL) selh&#225;vaj&#237; v rychlosti &#269;i indikaci. N&#225;kup l&#225;tek schv&#225;len&#253;ch pro jin&#233; indikace (akn&#233;, hypertenze) v m&#237;stech s ni&#382;&#353;&#237; rigiditou je racion&#225;ln&#237;m vyu&#382;it&#237;m dostupn&#253;ch zdroj&#367; pro z&#225;chranu &#382;ivota.</p></li></ul><p>V syst&#233;mu, kter&#253; tuto kombina&#269;n&#237; l&#233;&#269;bu aktivn&#283; nepodporuje, se pacient mus&#237; st&#225;t &#8222;vlastn&#237;m onkologem&#8220; &#8211; architektem l&#233;&#269;by, kter&#253; rozum&#237; interakc&#237;m a dok&#225;&#382;e dynamicky upravovat d&#225;vkov&#225;n&#237; na z&#225;klad&#283; laboratorn&#237;ch v&#253;sledk&#367;.</p><p><strong>Navigace v syst&#233;mu: Pacient jako aktivn&#237; architekt l&#233;&#269;by</strong></p><p>Mezi z&#225;jmem pacienta o p&#345;e&#382;it&#237; a rigiditou institucion&#225;ln&#237; medic&#237;ny existuje hlubok&#253; strategick&#253; konflikt. Off-label preskripce je leg&#225;ln&#237; pr&#225;vo l&#233;ka&#345;e, kter&#233; je v&#353;ak &#269;asto potla&#269;ov&#225;no institucion&#225;ln&#237; b&#225;zlivost&#237; a strachem z pr&#225;vn&#237; odpov&#283;dnosti.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!aNX4!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 424w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 848w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 1272w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!aNX4!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png" width="1239" height="679" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 424w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 848w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 1272w, /__u/substackcdn.com/image/fetch/$s_!aNX4!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F35cb1680-a7ef-452b-83b8-ac5bfaf2e3d0_1239x679.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>P&#345;e&#382;it&#237; diagn&#243;zy GBM nen&#237; v&#253;sledkem n&#225;hody, ale d&#367;sledkem intelektu&#225;ln&#237;ho &#250;sil&#237;. Pasivn&#237; pacient je ob&#283;t&#237; statistik; aktivn&#237; architekt l&#233;&#269;by tyto statistiky p&#345;episuje prost&#345;ednictv&#237;m informovan&#233;ho skepticismu a odvahy k experimentu.</p><p><strong>Z&#225;v&#283;r: P&#345;ekon&#225;n&#237; statistick&#233; nevyhnutelnosti</strong></p><p>P&#345;evzet&#237; kontroly nad l&#233;&#269;ebn&#253;m procesem transformuje glioblastom z rozsudku smrti na zvladatelnou v&#253;zvu. Remise je u GBM mo&#382;n&#225; pouze p&#345;i <strong>tot&#225;ln&#237; eradikaci</strong> viditeln&#233;ho i neviditeln&#233;ho tumoru. Zat&#237;mco chirurgie a radiace &#345;e&#353;&#237; makroskopickou masu, pouze syst&#233;mov&#225; polyfarmakologie dok&#225;&#382;e zlikvidovat mikroskopick&#233; tendrily infiltruj&#237;c&#237; okoln&#237; bun&#283;&#269;n&#233; struktury.</p><p>Statistick&#225; nevyhnutelnost &#250;mrt&#237; na GBM je artefaktem neadekv&#225;tn&#237;, sekven&#269;n&#237; l&#233;&#269;by. Metoda koktejlu, postaven&#225; na synergii, inhibici rezistence a evolu&#269;n&#237; logice, nab&#237;z&#237; re&#225;lnou &#353;anci tam, kde standardn&#237; medic&#237;na nab&#237;z&#237; pouze paliaci. Cesta k p&#345;e&#382;it&#237; vy&#382;aduje vytrvalost, v&#283;deckou p&#345;&#237;snost a s&#237;lu informovan&#233; komunity, kter&#225; odm&#237;t&#225; p&#345;ijmout roli statistick&#233; ob&#283;ti. Glioblastom je termin&#225;ln&#237; pouze pro ty, kte&#345;&#237; se pod&#345;&#237;d&#237; rigidit&#283; selh&#225;vaj&#237;c&#237;ho syst&#233;mu. Pro architekta vlastn&#237; l&#233;&#269;by je to bitva, kterou lze vyhr&#225;t.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!tntl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!tntl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png 424w, /__u/substackcdn.com/image/fetch/$s_!tntl!, /__u/zdeneksipek.substack.com/w_848, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png 424w, /__u/substackcdn.com/image/fetch/$s_!tntl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png 848w, /__u/substackcdn.com/image/fetch/$s_!tntl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png 1272w, /__u/substackcdn.com/image/fetch/$s_!tntl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc8247e13-53bf-4eee-af58-f49c3e38cfe0_1249x677.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroj:<br>Williams, B. (2002). <em>Surviving &#8220;Terminal&#8221; Cancer: Clinical Trials, Drug Cocktails, and Other Treatments Your Oncologist Won&#8217;t Tell You About.</em> CreateSpace Independent Publishing Platform. ISBN-13<strong> &#8207; : &#8206; </strong>978-1477496510</p><p><a href="https://www.youtube.com/watch?v=pJzpFrOCuMk">Surviving Terminal Cancer - A Patient Advocacy Film</a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[Glioblastoma multiforme II.]]></title><description><![CDATA[Metabolick&#225; intervence prost&#345;ednictv&#237;m ketogenn&#237; diety a modulace glutaminu jako dopl&#328;kov&#225; terapie u GBM]]></description><link>https://zdeneksipek.substack.com/p/glioblastoma-multiforme-ii</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/glioblastoma-multiforme-ii</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 13 Jun 2026 12:24:49 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!czou!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffa047845-0789-4afa-a772-4bbdf0b4e894_600x314.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 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/__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffa047845-0789-4afa-a772-4bbdf0b4e894_600x314.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!czou!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffa047845-0789-4afa-a772-4bbdf0b4e894_600x314.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!czou!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffa047845-0789-4afa-a772-4bbdf0b4e894_600x314.jpeg 1456w" sizes="100vw"><img 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/__u/substackcdn.com/image/fetch/$s_!czou!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ffa047845-0789-4afa-a772-4bbdf0b4e894_600x314.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Strategick&#253; kontext a sou&#269;asn&#225; terapeutick&#225; patov&#225; situace</strong></p><p>L&#233;&#269;ba glioblastomu (GBM) dos&#225;hla bodu klesaj&#237;c&#237;ch klinick&#253;ch v&#253;nos&#367;. Ji&#382; v&#237;ce ne&#382; dv&#283; desetilet&#237; slou&#382;&#237; jako zlat&#253; standard tzv. &#8222;Stupp&#367;v protokol&#8220; &#8211; sest&#225;vaj&#237;c&#237; z maxim&#225;ln&#237; bezpe&#269;n&#233; chirurgick&#233; resekce s n&#225;slednou radioterapi&#237; a l&#233;&#269;bou temozolomidem (TMZ) &#8211;, p&#345;esto medi&#225;n doby p&#345;e&#382;it&#237; z&#367;st&#225;v&#225; na stejn&#233; &#250;rovni. Vrozen&#225; heterogenita a rychl&#225; metabolick&#225; adaptace pokro&#269;il&#253;ch gliom&#367; zp&#367;sobuj&#237;, &#382;e &#269;ist&#283; cytotoxick&#233; p&#345;&#237;stupy jsou nedostate&#269;n&#233;. Chceme-li tuto terapeutick&#233; stagnanci prolomit, mus&#237;me p&#345;esunout n&#225;&#353; strategick&#253; z&#225;jem sm&#283;rem k metabolick&#253;m intervenc&#237;m, kter&#233; vyu&#382;&#237;vaj&#237; z&#225;kladn&#237; biochemick&#233; slabiny n&#225;doru.</p><p><strong>Klinick&#225; mezera: Kvantifikace nezbytnosti inovace</strong></p><ul><li><p><strong>Incidence:</strong> 3,27 na 100 000 obyvatel (v&#283;kov&#283; standardizov&#225;no na populaci USA), co&#382; p&#345;edstavuje nej&#269;ast&#283;j&#353;&#237; a nejv&#237;ce smrt&#237;c&#237; prim&#225;rn&#237; malignitu CNS.</p></li><li><p><strong>Medi&#225;n celkov&#233;ho p&#345;e&#382;it&#237; (OS):</strong> 14,6 m&#283;s&#237;ce; &#269;&#237;slo, kter&#233; se nepoda&#345;ilo v&#253;razn&#283; zlep&#353;it i p&#345;es pokroky v chirurgick&#233;m zobrazov&#225;n&#237; a precizn&#237; radioterapii.</p></li><li><p><strong>M&#237;ra dvoulet&#233;ho p&#345;e&#382;it&#237;:</strong> 26,5 %, co&#382; podtrhuje katastrof&#225;ln&#237; selh&#225;n&#237; sou&#269;asn&#253;ch udr&#382;ovac&#237;ch terapi&#237;.</p></li><li><p><strong>Limity standardn&#237; p&#233;&#269;e:</strong> Rezistence je poh&#225;n&#283;na &#250;nikov&#253;mi molekul&#225;rn&#237;mi mechanismy, zejm&#233;na u pacient&#367; s nemethylovan&#253;m promotorem genu MGMT nebo u star&#353;&#237;ch osob.</p></li></ul><p>Metabolick&#233; p&#345;eprogramov&#225;n&#237; p&#345;edstavuje novou hranici v neuroonkologii. C&#237;len&#237;m na energetick&#233; z&#225;klady malignity se posouv&#225;me za hranice mo&#382;nost&#237; standardn&#237;ch cytotoxick&#253;ch model&#367;. Tento p&#345;ehled ukazuje, &#382;e ketogenn&#237; dieta (KD) je biologicky racion&#225;ln&#237;, netoxick&#253; metabolick&#253; &#269;initel, kter&#253; je schopen zv&#253;&#353;it zranitelnost GBM standardn&#237; p&#233;&#269;&#237; a p&#345;eklenout mezeru v p&#345;e&#382;it&#237;, kterou tradi&#269;n&#237; farmakologie zat&#237;m nedok&#225;zala uzav&#345;&#237;t.</p><p><strong>Biologick&#233; zd&#367;vodn&#283;n&#237;: Vyu&#382;it&#237; Warburgova efektu</strong></p><p>Z pohledu klinick&#233;ho rozhodov&#225;n&#237; ji&#382; nen&#237; porozum&#283;n&#237; metabolismu n&#225;doru voliteln&#233;; je to strategick&#253; po&#382;adavek. Bu&#328;ky GBM vykazuj&#237; hlubokou &#8222;z&#225;vislost na gluk&#243;ze&#8220;, co&#382; je stav metabolick&#233; rigidity charakterizovan&#253; Warburgov&#253;m efektem &#8211; preferen&#269;n&#237;m vyu&#382;&#237;v&#225;n&#237;m aerobn&#237; glykol&#253;zy pro produkci energie i za p&#345;&#237;tomnosti dostate&#269;n&#233;ho mno&#382;stv&#237; kysl&#237;ku. Tato omezen&#225; metabolick&#225; flexibilita je zp&#367;sobena (pravd&#283;podobnou dysfunkc&#237; oxidativn&#237; fosforylace a) upregulac&#237; kl&#237;&#269;ov&#253;ch glykolytick&#253;ch faktor&#367;.</p><p>Molekul&#225;rn&#237; mechanismus zahrnuje trvalou <strong>aktivaci pyruv&#225;tkin&#225;zy</strong>, izoformy M2 (PKM2), <strong>upregulaci hypoxi&#237; indukovateln&#233;ho faktoru 1alfa (HIF-1&#945;) </strong>a zv&#253;&#353;enou <strong>glutaminol&#253;zu</strong>. Tyto dr&#225;hy poskytuj&#237; biosyntetick&#233; prekurzory pot&#345;ebn&#233; pro agresivn&#237; expanzi a invazi. Krom&#283; toho GBM vyu&#382;&#237;v&#225; k udr&#382;en&#237; tohoto malign&#237;ho fenotypu epigenetickou regulaci &#8211; konkr&#233;tn&#283; prost&#345;ednictv&#237;m histondeacetyl&#225;z (HDAC).</p><p>Ketogenn&#237; dieta p&#367;sob&#237; jako &#8222;metabolick&#253; primer&#8220; a epigenetick&#253; modifik&#225;tor. T&#237;m, &#382;e p&#345;&#237;sn&#283; omezuje p&#345;&#237;jem sacharid&#367;, sni&#382;uje KD syst&#233;movou hladinu gluk&#243;zy a inzul&#237;nu, &#269;&#237;m&#382; n&#225;dor p&#345;ich&#225;z&#237; o energii. J&#225;tra sou&#269;asn&#283; produkuj&#237; ketonov&#233; l&#225;tky (beta-hydroxybutyr&#225;t), kter&#233; zdrav&#233; neurony snadno vyu&#382;&#237;vaj&#237; jako &#250;&#269;inn&#233; alternativn&#237; palivo. Tato &#8222;substr&#225;tov&#225; kompetice&#8220; vytv&#225;&#345;&#237; metabolick&#233; prost&#345;ed&#237; nep&#345;&#225;telsk&#233; v&#367;&#269;i n&#225;doru, zat&#237;mco zdrav&#253;m bu&#328;k&#225;m poskytuje neuroprotekci.</p><p><strong>Metabolick&#233; sign&#225;ln&#237; dr&#225;hy za p&#345;&#237;tomnosti KD</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!mITy!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f206d04-f605-46d2-8e26-c8c32c3fd628_842x550.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!mITy!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!mITy!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f206d04-f605-46d2-8e26-c8c32c3fd628_842x550.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Srovn&#225;n&#237; klinick&#233; &#250;&#269;innosti: Anal&#253;za OS a PFS</strong></p><p>Pro l&#233;ka&#345;sk&#233; komise jsou metriky p&#345;e&#382;it&#237; hlavn&#237;mi ukazateli pro schv&#225;len&#237; protokol&#367;. Pokud podrob&#237;me ned&#225;vn&#225; klinick&#225; data anal&#253;ze typu &#8222;Co z toho vypl&#253;v&#225;?&#8220;, v&#253;sledky se pomalu posouvaj&#237; z roviny pouh&#233; statistick&#233; v&#253;znamnosti do oblasti potenci&#225;ln&#237; zm&#283;ny paradigmatu. Udr&#382;ov&#225;n&#237; nutri&#269;n&#237; ket&#243;zy ji&#382; nen&#237; dietn&#237;m dopl&#328;kem; je to intervence zdvojn&#225;sobuj&#237;c&#237; p&#345;e&#382;it&#237;.</p><p>V kohort&#225;ch pacient&#367;, kte&#345;&#237; dietu striktn&#283; dodr&#382;ovali, klinick&#233; v&#253;sledky fakticky zneplat&#328;uj&#237; brzkou &#8222;termin&#225;ln&#237;&#8220; progn&#243;zu obvykle spojovanou s GBM. Prospektivn&#237; studie (<a href="https://www.nature.com/articles/s41598-025-06675-6">Amaral 2025</a>; <a href="https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2024.1489812/full">Kiryttopoulos 2025</a>) ukazuj&#237;, &#382;e pacienti dodr&#382;uj&#237;c&#237; striktn&#237; KD mohou dos&#225;hnout medi&#225;nu celkov&#233;ho p&#345;e&#382;it&#237; (<strong>OS</strong>) <strong>29,4 m&#283;s&#237;ce</strong>, co&#382; je v&#237;ce ne&#382; dvojn&#225;sobek historick&#233;ho benchmarku (14,6 m&#283;s&#237;ce). Podobn&#283; medi&#225;n p&#345;e&#382;it&#237; bez progrese (<strong>PFS</strong>) dos&#225;hl <strong>12,9 m&#283;s&#237;ce</strong>, co&#382; je t&#233;m&#283;&#345; dvojn&#225;sobek oproti 6,7 m&#283;s&#237;ce o&#269;ek&#225;van&#253;m p&#345;i samotn&#233;m Stuppov&#283; protokolu.</p><blockquote><p><strong>Dlouhodob&#225; data o p&#345;e&#382;it&#237; p&#345;edstavuj&#237; mor&#225;ln&#237; a klinick&#253; imperativ pro aktualizaci protokol&#367;:</strong></p><ul><li><p><strong>M&#237;ra 3let&#233;ho p&#345;e&#382;it&#237; (Ketogenn&#237; dieta):</strong> 66,7 %</p></li><li><p><strong>M&#237;ra 3let&#233;ho p&#345;e&#382;it&#237; (Kontroln&#237; skupina):</strong> 8,3%</p></li></ul></blockquote><p>Vyu&#382;it&#237; gluk&#243;zo-ketonov&#233;ho indexu (GKI) slou&#382;&#237; jako z&#225;sadn&#237; prediktor terapeutick&#233; odpov&#283;di. D&#367;kazy nazna&#269;uj&#237; z&#225;vislost mezi intenzitou ket&#243;zy a p&#345;&#237;nosem pro p&#345;e&#382;it&#237;, co&#382; dokazuje, &#382;e p&#345;&#237;sn&#253; metabolick&#253; management maximalizuje terapeutickou synergii s radioterapi&#237; a TMZ.</p><p><strong>Bezpe&#269;nost, proveditelnost a profil adherence pacient&#367;</strong></p><p>Klinick&#225; skepse ohledn&#283; tolerance restriktivn&#237;ch diet u termin&#225;ln&#283; nemocn&#253;ch pacient&#367; je v rozporu s daty. Komplexn&#237; synt&#233;za 41 identifikovan&#253;ch studi&#237; (z nich&#382; 33 splnilo p&#345;&#237;sn&#225; krit&#233;ria pro kvalitativn&#237; synt&#233;zu) potvrzuje, &#382;e ketogenn&#237; dieta je vysoce tolerovateln&#225; intervence s n&#237;zk&#253;m rizikem.</p><ul><li><p><strong>Bezpe&#269;nost a ne&#382;&#225;douc&#237; &#250;&#269;inky:</strong> Bezpe&#269;nostn&#237; profil je v&#253;jime&#269;n&#253;: v r&#225;mci systematick&#233;ho p&#345;ehledu nebyly hl&#225;&#353;eny &#382;&#225;dn&#233; toxicity stupn&#283; 3 nebo 4 spojen&#233; s dietou. Ne&#382;&#225;douc&#237; &#250;&#269;inky (AE) jsou obvykle m&#237;rn&#233;, p&#345;echodn&#233; a zvl&#225;dnuteln&#233;, v&#269;etn&#283; gastrointestin&#225;ln&#237;ch p&#345;&#237;znak&#367; a &#250;navy. Studie (<a href="https://www.tandfonline.com/doi/full/10.1080/01635581.2020.1779759">Foppiani et al. 2020</a>) zaznamenaly 5% sn&#237;&#382;en&#237; t&#283;lesn&#233; hmotnosti a obvodu pasu, co&#382; v&#353;ak neslou&#382;&#237; jako komplikace, ale jako exaktn&#237; metrika &#250;sp&#283;&#353;n&#233;ho metabolick&#233;ho zapojen&#237; a syst&#233;mov&#233;ho sn&#237;&#382;en&#237; inzul&#237;nu.</p></li><li><p><strong>Proveditelnost a adherence:</strong> Compliance pacient&#367; z&#367;st&#225;v&#225; vysok&#225;, a to i b&#283;hem soub&#283;&#382;n&#233; chemoradioterapie. Studie uv&#225;d&#283;j&#237; m&#237;ru adherence p&#345;esahuj&#237;c&#237; 75 % (v prospektivn&#237;ch datech z roku 2025 dosahuje a&#382; 79 %). Flexibilita diety &#8211; od klasick&#233;ho pom&#283;ru 4:1 a&#382; po modifikovanou Atkinsovu dietu (MAD) a &#269;asov&#283; omezen&#233; stravov&#225;n&#237; (intermitentn&#237; hladov&#283;n&#237;) &#8211; umo&#382;&#328;uje individualizovan&#233; protokoly, kter&#233; zachov&#225;vaj&#237; kvalitu &#382;ivota a z&#225;rove&#328; udr&#382;uj&#237; terapeutickou ket&#243;zu.</p></li></ul><p><strong>V&#253;voj d&#367;kaz&#367;: Od kazuistik k systematick&#233; synt&#233;ze</strong></p><p>Hierarchie d&#367;kaz&#367; pro ketogenn&#237; metabolickou terapii (KMT) dozr&#225;la od izolovan&#253;ch anekdotick&#253;ch sd&#283;len&#237; k organizovan&#233; prospektivn&#237; synt&#233;ze, kter&#225; vyvrcholila v systematick&#233;m p&#345;ehledu z roku 2026, jen&#382; zahrnuje nejnov&#283;j&#353;&#237; poznatky z roku 2025.</p><ol><li><p><strong>Z&#225;klady (1995&#8211;2010):</strong> <a href="https://www.researchgate.net/publication/15407903_Effects_of_a_Ketogenic_Diet_on_Tumor_Metabolism_and_Nutritional_Status_in_Pediatric_Oncology_Patients_Two_Case_Reports">Nebeling (1995)</a> jako prvn&#237; prok&#225;zal 21,8% pokles spot&#345;eby gluk&#243;zy n&#225;dorem. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC2874558/">Zuccoli (2010)</a> nav&#225;zal d&#367;kazem kompletn&#237; radiologick&#233; remise p&#345;i restriktivn&#237; KD.</p></li><li><p><strong>Institucion&#225;ln&#237; proveditelnost (2014&#8211;2020):</strong> P&#345;elomov&#233; studie jako <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4063533/">ERGO</a> a <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC7076054/">KEATING</a> prok&#225;zaly, &#382;e KD je realizovateln&#225; v r&#225;mci modern&#237;ch onkologick&#253;ch odd&#283;len&#237; a je bezpe&#269;n&#225; v kombinaci se standardn&#237; p&#233;&#269;&#237;.</p></li><li><p><strong>Pr&#367;lom v p&#345;e&#382;it&#237; (2021&#8211;2026):</strong> Ned&#225;vn&#225; data poskytla &#8222;chyb&#283;j&#237;c&#237; &#269;l&#225;nek&#8220; v podob&#283; &#250;&#269;innosti na p&#345;e&#382;it&#237;. Mezi v&#253;znamn&#233; v&#253;sledky pat&#345;&#237; 80m&#283;s&#237;&#269;n&#237; p&#345;e&#382;it&#237; pacienta s mutac&#237; IDH (<a href="https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2021.682243/full">Seyfried et al. 2021</a>) a data Amaral (2025) potvrzuj&#237;c&#237; zdvojn&#225;soben&#237; medi&#225;nu OS.</p></li></ol><p><strong>Strategick&#225; doporu&#269;en&#237; pro klinickou integraci</strong></p><p>Zaveden&#237; KMT do institucion&#225;ln&#237; praxe vy&#382;aduje standardizovan&#253; r&#225;mec, kter&#253; se posouv&#225; od pouh&#233;ho &#8222;v&#253;&#382;ivov&#233;ho poradenstv&#237;&#8220; k p&#345;esn&#233;mu metabolick&#233;mu d&#225;vkov&#225;n&#237;.</p><p><strong>R&#225;mec pro institucion&#225;ln&#237; integraci</strong></p><ol><li><p><strong>Molekul&#225;rn&#237; stratifikace:</strong> Prioritizujte KMT u pacient&#367; s metylac&#237; MGMT a mutacemi IDH. Tyto molekul&#225;rn&#237; podtypy vykazuj&#237; sn&#237;&#382;enou glykolytickou flexibilitu, d&#237;ky &#269;emu&#382; jsou hypersenzitivn&#237; na restrikci gluk&#243;zy.</p></li><li><p><strong>D&#225;vkov&#225;n&#237; monitorovan&#233; pomoc&#237; GKI:</strong> Standardizujte monitorov&#225;n&#237; pomoc&#237; gluk&#243;zo-ketonov&#233;ho indexu, abyste zajistili, &#382;e se pacienti budou nach&#225;zet v terapeutick&#233;m rozmez&#237; (GKI &lt; 2,0).</p></li><li><p><strong>Specializovan&#253; person&#225;l:</strong> Vytvo&#345;en&#237; pozic specializovan&#253;ch sester pro metabolickou onkologii a registrovan&#253;ch nutri&#269;n&#237;ch terapeut&#367; je strategick&#253;m po&#382;adavkem pro &#345;&#237;zen&#237; dlouhodob&#233; udr&#382;itelnosti a adherence.</p></li><li><p><strong>Synergick&#225; kombinace:</strong> Nasa&#271;te KD jako primer b&#283;hem f&#225;ze radioterapie/TMZ, aby se maximalizovaly radiosenzibiliza&#269;n&#237; &#250;&#269;inky metabolick&#233;ho stresu.</p></li></ol><p><strong>N&#225;kladov&#225; efektivita a udr&#382;itelnost</strong></p><p>Na rozd&#237;l od chr&#225;n&#283;n&#253;ch biologick&#253;ch l&#233;k&#367; nebo nov&#253;ch imunoterapi&#237; vyu&#382;&#237;v&#225; KMT standardn&#237;, b&#283;&#382;n&#283; dostupn&#233; nutri&#269;n&#237; slo&#382;ky. To z n&#237; &#269;in&#237; vysoce n&#225;kladov&#283; efektivn&#237; intervenci s vynikaj&#237;c&#237;m bezpe&#269;nostn&#237;m profilem, kter&#225; je vhodn&#225; pro rychl&#233; zaveden&#237; v r&#367;zn&#253;ch zdravotnick&#253;ch za&#345;&#237;zen&#237;ch.</p><p><strong>Z&#225;v&#283;r</strong></p><p>Za&#345;azen&#237; ketogenn&#237; metabolick&#233; terapie (KMT) do standardn&#237;ch klinick&#253;ch doporu&#269;en&#237; pro GBM je klinickou nezbytnost&#237; podlo&#382;enou t&#345;iceti lety vyv&#237;jej&#237;c&#237;ch se d&#367;kaz&#367;. C&#237;len&#237;m na typickou glykolytickou z&#225;vislost GBM m&#367;&#382;eme kone&#269;n&#283; pohnout s k&#345;ivkou p&#345;e&#382;it&#237;. Doporu&#269;ujeme okam&#382;itou integraci KMT jako adjunktivn&#237;ho protokolu pro GBM, a to s vyu&#382;it&#237;m jej&#237;ho netoxick&#233;ho, synergick&#233;ho a p&#345;e&#382;it&#237; zdvojn&#225;sobuj&#237;c&#237;ho potenci&#225;lu.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!H1vV!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbc540f14-36f7-4247-a65b-0be2b0a5d4bb_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!H1vV!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbc540f14-36f7-4247-a65b-0be2b0a5d4bb_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!H1vV!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbc540f14-36f7-4247-a65b-0be2b0a5d4bb_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!H1vV!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbc540f14-36f7-4247-a65b-0be2b0a5d4bb_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!H1vV!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbc540f14-36f7-4247-a65b-0be2b0a5d4bb_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p><strong>Z&#225;kladn&#237; pr&#367;vodce ketogenn&#237; stravou</strong></p><p>P&#345;&#237;sn&#225; ketogenn&#237; dieta je strava s vysok&#253;m obsahem tuk&#367;, m&#237;rn&#253;m obsahem b&#237;lkovin a velmi n&#237;zk&#253;m obsahem sacharid&#367;, kter&#225; p&#345;epne t&#283;lo do stavu <strong>nutri&#269;n&#237; ket&#243;zy</strong>. V tomto stavu se prim&#225;rn&#237;m palivem pro t&#283;lo st&#225;v&#225; tuk nam&#237;sto gluk&#243;zy. Pro pacienty s rakovinou je tento p&#345;&#237;stup metabolicky terapeutick&#253;, proto&#382;e sni&#382;uje hladinu cukru v krvi, zm&#237;r&#328;uje z&#225;n&#283;t a &#8222;stresuje&#8220; rakovinn&#233; bu&#328;ky, kter&#233; jsou na gluk&#243;ze z&#225;visl&#233;.</p><p><strong>P&#345;&#237;nosy ketogenn&#237; diety p&#345;i rakovin&#283;</strong></p><ul><li><p><strong>Sni&#382;uje hladinu gluk&#243;zy a inzul&#237;nu:</strong> Odeb&#237;r&#225; palivo rakovinn&#253;m bu&#328;k&#225;m.</p></li><li><p><strong>Zvy&#353;uje hladinu keton&#367; (beta-hydroxybutyr&#225;tu):</strong> Poskytuje &#269;ist&#233; palivo pro zdrav&#233; bu&#328;ky a sni&#382;uje oxida&#269;n&#237; stres.</p></li><li><p><strong>Sni&#382;uje z&#225;n&#283;t:</strong> Sni&#382;uje markery jako C-reaktivn&#237; protein (CRP) a zlep&#353;uje funkci imunitn&#237;ho syst&#233;mu.</p></li><li><p><strong>Zlep&#353;uje mitochondri&#225;ln&#237; funkci:</strong> Rakovina je spojena s dysfunkc&#237; mitochondri&#237;; ket&#243;za zvy&#353;uje jejich &#250;&#269;innost.</p></li><li><p><strong>Podporuje autofagii a apopt&#243;zu:</strong> Podporuje p&#345;irozenou smrt po&#353;kozen&#253;ch nebo rakovinn&#253;ch bun&#283;k.</p></li><li><p><strong>Posiluje imunitu:</strong> Posiluje NK bu&#328;ky (p&#345;irozen&#233; zab&#237;je&#269;e), kter&#233; bojuj&#237; proti rakovin&#283;.</p></li><li><p><strong>Zlep&#353;uje kognitivn&#237; funkce:</strong> Mnoho pacient&#367; uv&#225;d&#237; zlep&#353;en&#237; ment&#225;ln&#237; jasnosti a energie.</p></li></ul><p><strong>Denn&#237; rozd&#283;len&#237; makro&#382;ivin (p&#345;&#237;sn&#233; Keto)</strong></p><ul><li><p><strong>Tuky: 80-85 %</strong> (zdrav&#233; tuky z rostlinn&#253;ch a &#382;ivo&#269;i&#353;n&#253;ch zdroj&#367;).</p></li><li><p><strong>B&#237;lkoviny: 10-15 %</strong> (m&#237;rn&#253; p&#345;&#237;jem, aby se zabr&#225;nilo glukoneogenezi &#8211; tvorb&#283; cukru z b&#237;lkovin).</p></li><li><p><strong>Sacharidy: 5 %</strong> (p&#345;ev&#225;&#382;n&#283; z n&#237;zkosacharidov&#233; zeleniny a o&#345;ech&#367;).</p></li><li><p><strong>C&#237;lov&#225; hladina keton&#367; v krvi:</strong> 2,0 &#8211; 3,5 mmol/l.</p></li><li><p><strong>C&#237;lov&#225; hladina gluk&#243;zy:</strong> Pod 85 mg/dL.</p></li></ul><p><strong>Potraviny: Co j&#237;st a &#269;emu se vyhnout</strong></p><p><strong>Vhodn&#233; potraviny:</strong></p><ul><li><p><strong>Zdrav&#233; tuky:</strong> Avok&#225;do, kokosov&#253; a MCT olej, extra panensk&#253; olivov&#253; olej (EVOO), m&#225;slo a gh&#237; od krav krmen&#253;ch tr&#225;vou, makadamov&#233; o&#345;echy, pekanov&#233; o&#345;echy.</p></li><li><p><strong>Kvalitn&#237; b&#237;lkoviny:</strong> Hov&#283;z&#237; maso (grass-fed), vejce z voln&#233;ho chovu, divok&#253; losos, sardinky, sle&#271;, makrela, bio ku&#345;ec&#237; maso, kostn&#237; v&#253;var a kolagenn&#237; peptidy.</p></li><li><p><strong>N&#237;zkosacharidov&#225; zelenina:</strong> Listov&#225; zelenina (kapusta, &#353;pen&#225;t, rukola), ko&#353;&#357;&#225;lov&#225; zelenina (brokolice, kv&#283;t&#225;k, r&#367;&#382;i&#269;kov&#225; kapusta), ch&#345;est, cuketa, okurky, fermentovan&#225; zelenina (kysan&#233; zel&#237;, kimchi).</p></li><li><p><strong>Superpotraviny:</strong> Kurkuma, z&#225;zvor, (medicin&#225;ln&#237;) houby (reishi, coriolus), rozmar&#253;n, &#269;esnek, vysokoprocentn&#237; tmav&#225; &#269;okol&#225;da (90 % a v&#237;ce), jable&#269;n&#253; ocet.</p></li></ul><p><strong>Nevhodn&#233; potraviny (palivo pro rakovinu):</strong> Cukr, obiloviny a rafinovan&#233; sacharidy (chl&#233;b, t&#283;stoviny, r&#253;&#382;e), pr&#367;myslov&#283; zpracovan&#233; maso, rostlinn&#233; oleje ze semen (&#345;epkov&#253;, s&#243;jov&#253;), ml&#233;&#269;n&#233; v&#253;robky (krom&#283; m&#225;sla a gh&#237;) a lu&#353;t&#283;niny.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!apBd!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!apBd!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!apBd!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F693f3272-2a62-437e-979f-09c8a65ed430_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>K monitoringu postupu a v&#253;sledk&#367; pou&#382;ijte aplikace jako <strong><a href="https://cronometer.com/">Cronometer</a></strong> a kontinu&#225;ln&#237; monitoring gluk&#243;zy (CGM) nebo <strong><a href="https://www.amazon.com/KETO-MOJO-Bluetooth-Diabetes-Management-Solutions/dp/B08G5BZQVL?ref_=ast_sto_dp">Keto-Mojo</a></strong> apod.</p><p><strong>Pokro&#269;il&#233; strategie p&#367;stu (Fasting)</strong></p><p>P&#367;st zvy&#353;uje metabolickou flexibilitu a zlep&#353;uje autofagii (opravu bun&#283;k).</p><ul><li><p><strong>P&#345;eru&#353;ovan&#253; p&#367;st (IF):</strong> Nap&#345;. protokol <strong>16:8</strong> (16 hodin p&#367;stu, 8 hodin j&#237;dlo) nebo <strong>18:6/20:4</strong> pro hlub&#353;&#237; ket&#243;zu.</p></li><li><p><strong>Prodlou&#382;en&#253; p&#367;st (24&#8211;72 hodin):</strong> Pouze voda a elektrolyty; stimuluje hlubokou autofagii a reset imunitn&#237;ho syst&#233;mu (doporu&#269;eno jednou m&#283;s&#237;&#269;n&#283; nebo s pod&#225;n&#237;m chemoterapie, kde sni&#382;uje jej&#237; vedlej&#353;&#237; &#250;&#269;inky a zvy&#353;uje jej&#237; efektivitu - viz. <strong><a href="https://annas-archive.gl/md5/c51dab8952ae5868e2cf7842c3840bec">V. Longo - Fasting Cancer: How Fasting &amp; Nutritechnology Are Creating Revolution in Cancer Prevention &amp; Treatment</a></strong>).</p></li><li><p><strong>D&#367;le&#382;it&#233; pro autofagii:</strong> Aby bylo dosa&#382;eno hlubok&#233; autofagie, mus&#237; p&#345;&#237;jem <strong>b&#237;lkovin z&#367;stat pod 15&#8211;20 g denn&#283;.</strong></p></li></ul><div><hr></div><p><strong>Ketogenn&#237; dieta by m&#283;la b&#253;t kombinov&#225;na se snahou o inhibici nebo modulaci absorpce glutaminu rakovinn&#253;mi bu&#328;kami</strong>.</p><p>Ze snadno dostupn&#253;ch l&#225;tek lze uva&#382;ovat p&#345;edev&#353;&#237;m o:</p><p><strong>EGCG</strong>: 400 mg r&#225;no + 400 mg ve&#269;er (v&#382;dy s j&#237;dlem - jinak hroz&#237; nevolnost)</p><p><strong>Curcumin</strong>: 2000-4000 mg r&#225;no + 2000-4000 mg ve&#269;er</p><p><strong>Melatonin</strong>: 20-200 mg ve&#269;er </p><p><strong>Resveratrol</strong>: 250-500 mg r&#225;no + 250-500 mg ve&#269;er</p><p><strong>Metformin</strong>: 500 mg r&#225;no + 500 mg ve&#269;er</p><p><strong>Vitam&#237;n D3</strong>: 5000 IU za den</p><p>V&#353;echny tyto l&#225;tky maj&#237; nav&#237;c &#345;adu dal&#353;&#237;ch mechanism&#367; p&#367;soben&#237; proti rakovinn&#253;m bu&#328;k&#225;m.</p><p>Standardn&#237; sou&#269;&#225;st&#237; l&#233;&#269;by by m&#283;la b&#253;t systematick&#225; kontrola krevn&#237;ho obrazu, funkce jater a ledvin, p&#345;&#237;padn&#283; dal&#353;&#237;ch org&#225;nov&#253;ch syst&#233;m&#367;.</p><div><hr></div><p><strong>DON (6-Diazo-5-oxo-L-norleucine)</strong> je klasick&#253; <strong>glutaminov&#253; antagonista</strong> (antimetabolit glutaminu).</p><p>Stru&#269;n&#253; popis:</p><ul><li><p><strong>Mechanismus</strong>: Struktur&#225;ln&#283; podobn&#253; glutaminu, ireverzibiln&#283; inhibuje &#345;adu enzym&#367;, kter&#233; vyu&#382;&#237;vaj&#237; glutamin (p&#345;edev&#353;&#237;m glutamin&#225;zu GLS, ale i dal&#353;&#237; amidotransfer&#225;zy). T&#237;m blokuje glutaminovou metabolismu v n&#225;dorov&#253;ch bu&#328;k&#225;ch &#8212; naru&#353;uje synt&#233;zu nukleotid&#367;, aminokyselin, hexosamin&#367; a energii (TCA cyklus).</p></li><li><p><strong>V&#253;znam v onkologii</strong>: N&#225;dorov&#233; bu&#328;ky jsou &#269;asto &#8222;glutaminov&#283; z&#225;visl&#233;&#8220;. DON m&#225; siln&#253; protin&#225;dorov&#253; efekt v preklinick&#253;ch modelech (pankreas, prsa, atd.). Studov&#225;n od 50. let 20. stolet&#237;.</p></li><li><p><strong>Probl&#233;my</strong>: Toxicita (hlavn&#283; gastrointestin&#225;ln&#237; &#8212; nevolnost, pr&#367;jem), proto nebyl schv&#225;len jako l&#233;k. Dnes se vyv&#237;jej&#237; <strong>alternativy</strong> (nap&#345;. JHU-083, DRP-104/sirpiglenastat), kter&#233; se aktivuj&#237; p&#345;ednostn&#283; v n&#225;doru a maj&#237; ni&#382;&#353;&#237; vedlej&#353;&#237; &#250;&#269;inky.</p></li><li><p><strong>Aktu&#225;ln&#237; stav</strong>: Prob&#237;haj&#237; studie kombinac&#237; s imunoterapi&#237; a dal&#353;&#237;mi l&#233;ky. Nen&#237; schv&#225;len pro klinick&#233; pou&#382;it&#237;.</p></li></ul><p>DON pat&#345;&#237; mezi nejsiln&#283;j&#353;&#237; glutaminov&#233; inhibitory, ale kv&#367;li toxicit&#283; se pou&#382;&#237;v&#225; sp&#237;&#353;e v experiment&#225;ln&#237;ch nebo optimalizovan&#253;ch form&#225;ch.</p><p><strong>Pozn&#225;mka</strong>: Nen&#237; to l&#233;k na samol&#233;&#269;bu &#8212; konzultujte s onkologem/odborn&#237;kem.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje:</p><p>Jawaria Firdous, Anid Hassan. Efficacy and Safety of Ketogenic Diet in Glioblastoma: An Updated Systematic Review, 03 February 2026, PREPRINT (Version 1) available at Research Square <a href="https://assets-eu.researchsquare.com/files/rs-8746686/v1/d48bce14-6461-4b28-acc5-3881c5069826.pdf?c=1770717727">https://doi.org/10.21203/rs.3.rs-8746686/v1</a></p><p>Kiryttopoulos A, Evangeliou AE, Katsanika I, Boukovinas I, Foroglou N, Zountsas B, Cheva A, Nikolopoulos V, Zaramboukas T, Duraj T, Seyfried TN and Spilioti M (2025) Successful application of dietary ketogenic metabolic therapy in patients with glioblastoma: a clinical study. Front. Nutr. 11:1489812. <a href="https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2024.1489812/full">doi: 10.3389/fnut.2024.1489812</a></p><p>Dal Bello, S.; Valdemarin, F.; Martinuzzi, D.; Filippi, F.; Gigli, G.L.; Valente, M. Ketogenic Diet in the Treatment of Gliomas and Glioblastomas. <em>Nutrients</em> <strong>2022</strong>, <em>14</em>, 3851. <a href="https://www.mdpi.com/2072-6643/14/18/3851">https://doi.org/10.3390/nu14183851</a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[Glioblastoma multiforme I.]]></title><description><![CDATA[Standard p&#233;&#269;e]]></description><link>https://zdeneksipek.substack.com/p/glioblastoma-multiforme-i</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/glioblastoma-multiforme-i</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 06 Jun 2026 12:44:07 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!gLLl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F93ea46f2-292c-4b4a-9d7d-30c6a731783c_1280x1280.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!gLLl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F93ea46f2-292c-4b4a-9d7d-30c6a731783c_1280x1280.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!gLLl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F93ea46f2-292c-4b4a-9d7d-30c6a731783c_1280x1280.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!gLLl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/substackcdn.com/image/fetch/$s_!gLLl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F93ea46f2-292c-4b4a-9d7d-30c6a731783c_1280x1280.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Jen m&#225;lokde je selh&#225;n&#237; posledn&#237;ch v&#237;ce ne&#382; sto let onkologick&#233; teorie a praxe patrn&#233; tak, jako u l&#233;&#269;by glioblastomu.</p><p>Standardem p&#233;&#269;e je v sou&#269;asnosti st&#225;le <strong>Stupp&#367;v protokol</strong> vych&#225;zej&#237;c&#237; z v&#253;sledk&#367; t&#233;to v&#237;ce ne&#382; 20 let star&#233; <a href="https://www.nejm.org/doi/full/10.1056/NEJMoa043330">studie</a>.</p><p><strong>Glioblastom</strong> je nej&#269;ast&#283;j&#353;&#237;m a bohu&#382;el tak&#233; nejagresivn&#283;j&#353;&#237;m prim&#225;rn&#237;m mozkov&#253;m n&#225;dorem u dosp&#283;l&#253;ch. Jeho charakteristick&#253;m rysem je velmi rychl&#253; r&#367;st. V onkologick&#233; praxi to znamen&#225;, &#382;e &#269;el&#237;te zcela nekompromisn&#237;mu protivn&#237;kovi.</p><p>P&#345;ed touto studi&#237; byla standardn&#237; l&#233;&#269;ba pro nov&#283; diagnostikovan&#233; pacienty pom&#283;rn&#283; omezen&#225;:</p><p>1. <strong>Chirurgick&#233; odstran&#283;n&#237; n&#225;doru</strong> v co nejv&#283;t&#353;&#237;m rozsahu, jak&#253; je bezpe&#269;n&#283; mo&#382;n&#253;.</p><p>2. N&#225;sledn&#233; <strong>oza&#345;ov&#225;n&#237; (radioterapie)</strong>, jeho&#382; c&#237;lem bylo zni&#269;it zb&#253;vaj&#237;c&#237; n&#225;dorov&#233; bu&#328;ky.</p><p>Navzdory t&#233;to p&#233;&#269;i byla progn&#243;za pacient&#367; velmi nep&#345;&#237;zniv&#225; a pr&#367;m&#283;rn&#225; doba p&#345;e&#382;it&#237; (tzv. medi&#225;n) od diagn&#243;zy se obvykle pohybovala pod hranic&#237; jednoho roku. Bylo tedy naprosto kl&#237;&#269;ov&#233; naj&#237;t nov&#233;, &#250;&#269;inn&#283;j&#353;&#237; l&#233;&#269;ebn&#233; postupy, kter&#233; by tuto statistiku dok&#225;zaly zlep&#353;it.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>C&#237;l studie: Hled&#225;n&#237; &#250;&#269;inn&#283;j&#353;&#237; l&#233;&#269;by</strong></p><p>Hlavn&#237;m c&#237;lem studie bylo zjistit, zda <strong>p&#345;id&#225;n&#237; chemoterapie ke standardn&#237;mu oza&#345;ov&#225;n&#237;</strong> dok&#225;&#382;e prodlou&#382;it &#382;ivot pacient&#367; s nov&#283; diagnostikovan&#253;m glioblastomem.</p><p>V&#283;dci se rozhodli testovat l&#233;k s n&#225;zvem <strong>temozolomid</strong>. Jedn&#225; se o chemoterapii ve form&#283; tablet, kter&#225; se pod&#225;v&#225; &#250;sty a kter&#225; ji&#382; d&#345;&#237;ve prok&#225;zala ur&#269;itou &#250;&#269;innost u pacient&#367;, kter&#253;m se glioblastom vr&#225;til po p&#345;edchoz&#237; l&#233;&#269;b&#283;. Nyn&#237; se pozornost zam&#283;&#345;ila na to, zda by mohl pomoci hned na za&#269;&#225;tku l&#233;&#269;ebn&#233;ho procesu.</p><p>Poj&#271;me se pod&#237;vat, jak p&#345;esn&#283; byl tento v&#253;zkum zorganizov&#225;n, aby p&#345;inesl co nejspolehliv&#283;j&#353;&#237; odpov&#283;&#271;.</p><p><strong>Jak v&#253;zkum prob&#237;hal: Dv&#283; skupiny pacient&#367;</strong></p><p>Do studie bylo za&#345;azeno celkem <strong>573 pacient&#367;</strong> z <strong>85 r&#367;zn&#253;ch onkologick&#253;ch center po cel&#233;m sv&#283;t&#283;</strong>, u nich&#382; byl nov&#283; potvrzen glioblastom. Tito pacienti byli n&#225;sledn&#283; n&#225;hodn&#283;, rozd&#283;leni do dvou skupin. Tento postup zaji&#353;&#357;uje, &#382;e ob&#283; skupiny jsou na za&#269;&#225;tku co nejv&#237;ce srovnateln&#233; a rozd&#237;ly ve v&#253;sledc&#237;ch lze p&#345;ipsat pr&#225;v&#283; testovan&#233; l&#233;&#269;b&#283;.</p><p>Ka&#382;d&#225; skupina dostala jin&#253; l&#233;&#269;ebn&#253; re&#382;im:</p><p>&#8226; <strong>Prvn&#237; skupina (standardn&#237; l&#233;&#269;ba):</strong> Tito pacienti podstoupili pouze <strong>oza&#345;ov&#225;n&#237;</strong> mozku.</p><p>&#8226; <strong>Druh&#225; skupina (nov&#225;, testovan&#225; l&#233;&#269;ba):</strong> Pacienti podstoupili stejn&#233; <strong>oza&#345;ov&#225;n&#237;</strong>, ale z&#225;rove&#328; s n&#237;m denn&#283; u&#382;&#237;vali l&#233;k <strong>temozolomid</strong>. Po skon&#269;en&#237; oza&#345;ov&#225;n&#237; v l&#233;&#269;b&#283; temozolomidem pokra&#269;ovali po dobu dal&#353;&#237;ch &#353;esti cykl&#367;.</p><p>Jak&#253; byl v&#253;sledek tohoto srovn&#225;n&#237;?</p><p><strong>Kl&#237;&#269;ov&#233; v&#253;sledky: Lep&#353;&#237; p&#345;e&#382;it&#237; s mal&#253;mi riziky nav&#237;c</strong></p><p>V&#253;sledky studie byly jednozna&#269;n&#233;. P&#345;id&#225;n&#237; temozolomidu k oza&#345;ov&#225;n&#237; p&#345;ineslo pacient&#367;m <strong>statisticky i klinicky v&#253;znamn&#253; p&#345;&#237;nos</strong>.</p><p>Nejd&#367;le&#382;it&#283;j&#353;&#237; rozd&#237;ly p&#345;ehledn&#283; shrnuje n&#225;sleduj&#237;c&#237; tabulka:</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!v-cj!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 424w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 848w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 1272w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!v-cj!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png" width="526" height="142.64406779661016" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b805107f-67b4-4094-97ca-2bf3fc689406_531x144.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:144,&quot;width&quot;:531,&quot;resizeWidth&quot;:526,&quot;bytes&quot;:17305,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/177371959?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 424w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 848w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 1272w, /__u/substackcdn.com/image/fetch/$s_!v-cj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb805107f-67b4-4094-97ca-2bf3fc689406_531x144.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p>Co tato &#269;&#237;sla v praxi znamenaj&#237;? Pacienti, kte&#345;&#237; dost&#225;vali novou kombinovanou l&#233;&#269;bu, &#382;ili v pr&#367;m&#283;ru o 2,5 m&#283;s&#237;ce d&#233;le. Je&#353;t&#283; d&#367;le&#382;it&#283;j&#353;&#237; je v&#353;ak pohled na dlouhodob&#233; p&#345;e&#382;it&#237;: jejich &#353;ance, &#382;e budou na&#382;ivu dva roky po diagn&#243;ze, byla <strong>v&#237;ce ne&#382; 2,5kr&#225;t vy&#353;&#353;&#237;</strong> ne&#382; ve skupin&#283; se standardn&#237; l&#233;&#269;bou.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!edV9!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 424w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 848w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 1272w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!edV9!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png" width="438" height="344" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 424w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 848w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 1272w, /__u/substackcdn.com/image/fetch/$s_!edV9!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fa21816d9-6d2d-40f5-a3e5-8531e56ebe7b_438x344.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a><figcaption class="image-caption">Ptavd&#283;podobnost celkov&#233; p&#345;e&#382;it&#237; (m&#283;s&#237;ce)</figcaption></figure></div><p>Ka&#382;d&#225; l&#233;&#269;ba s sebou nese i riziko ne&#382;&#225;douc&#237;ch &#250;&#269;ink&#367; a l&#233;ka&#345;i je obvykle pe&#269;liv&#283; sleduj&#237;. U nov&#233; l&#233;&#269;by se sice &#269;ast&#283;ji objevoval do&#269;asn&#253; pokles krevn&#237;ch bun&#283;k, co&#382; je u chemoterapie o&#269;ek&#225;vateln&#233;, ale pro 93% v&#283;t&#353;inu pacient&#367; byly tyto stavy relativn&#283; dob&#345;e zvl&#225;dnuteln&#233;. </p><p><strong>Standard v l&#233;&#269;b&#283;</strong></p><p>Tato studie jasn&#283; prok&#225;zala, &#382;e kombinace oza&#345;ov&#225;n&#237; s chemoterapi&#237; temozolomidem je &#250;&#269;inn&#283;j&#353;&#237; ne&#382; samotn&#233; oza&#345;ov&#225;n&#237;. M&#237;rn&#283; zlep&#353;ila p&#345;e&#382;it&#237; pacient&#367;, ani&#382; by je zat&#237;&#382;ila nep&#345;im&#283;&#345;en&#253;mi vedlej&#353;&#237;mi &#250;&#269;inky. D&#237;ky t&#283;mto v&#253;sledk&#367;m se tento l&#233;&#269;ebn&#253; postup stal <strong>nov&#253;m celosv&#283;tov&#253;m standardem p&#233;&#269;e</strong> pro pacienty s nov&#283; diagnostikovan&#253;m glioblastomem.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!uiTj!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!uiTj!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!uiTj!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F123156d6-24a1-44ab-8b60-fa829be22a4d_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p>Novou modalitou v l&#233;&#269;b&#283; se v sou&#269;asnosti st&#225;v&#225; nasazen&#237; TTFields. Jedn&#225; se o nositeln&#233; za&#345;&#237;zen&#237;, kter&#233; vyu&#382;&#237;v&#225; st&#345;&#237;dav&#225; elektrick&#225; pole o n&#237;zk&#233; intenzit&#283;. Tato pole jsou aplikov&#225;na na oholenou poko&#382;ku hlavy pomoc&#237; speci&#225;ln&#237;ch n&#225;plast&#237; s elektrodami, kter&#233; jsou p&#345;ipojeny k mal&#233;mu p&#345;enosn&#233;mu za&#345;&#237;zen&#237;, co&#382; pacient&#367;m umo&#382;&#328;uje pokra&#269;ovat v l&#233;&#269;b&#283; doma. C&#237;lem pol&#237; je naru&#353;ovat proces d&#283;len&#237; rakovinn&#253;ch bun&#283;k. Jde o takzvanou <strong>antimitotickou l&#233;&#269;bu</strong>, kter&#225; br&#225;n&#237; n&#225;dorov&#253;m bu&#328;k&#225;m v mno&#382;en&#237;.</p><p>Aby v&#283;dci zjistili, zda je tato metoda &#250;&#269;inn&#225;, navrhli rozs&#225;hlou klinickou <a href="https://jamanetwork.com/journals/jama/fullarticle/2666504">studii</a>, jej&#237;&#382; v&#253;sledky byly publikov&#225;ny v &#269;asopise JAMA v roce prosinci 2017.</p><p>Studie se z&#250;&#269;astnilo celkem <strong>695 dosp&#283;l&#253;ch pacient&#367;</strong> s nov&#283; diagnostikovan&#253;m glioblastomem z 83 center po cel&#233;m sv&#283;t&#283;. V&#353;ichni pacienti ji&#382; p&#345;ed za&#345;azen&#237;m do studie absolvovali &#250;vodn&#237; f&#225;zi l&#233;&#269;by &#8211; operaci a kombinaci oza&#345;ov&#225;n&#237; s chemoterapi&#237;.</p><p>Porovn&#225;n&#237; dvou l&#233;&#269;ebn&#253;ch skupin</p><p>Pacienti byli n&#225;hodn&#283; rozd&#283;leni do dvou skupin, aby bylo mo&#382;n&#233; porovnat &#250;&#269;innost nov&#233; l&#233;&#269;by se standardn&#237; p&#233;&#269;&#237;.</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!qw3e!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 424w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 848w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 1272w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!qw3e!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png" width="685" height="192" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 424w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 848w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 1272w, /__u/substackcdn.com/image/fetch/$s_!qw3e!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7e6cb296-7ebb-4a88-aa89-5c25a4060790_685x192.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p>Co v&#283;dci sledovali? V&#283;dci se zam&#283;&#345;ili na dva hlavn&#237; ukazatele &#250;sp&#283;&#353;nosti l&#233;&#269;by:</p><p>&#8226; <strong>P&#345;e&#382;it&#237; bez progrese (PFS):</strong> Doba, po kterou pacienti &#382;ili, ani&#382; by se jejich n&#225;dor zhor&#353;oval nebo rostl.</p><p>&#8226; <strong>Celkov&#233; p&#345;e&#382;it&#237; (OS):</strong> Celkov&#225; doba, po kterou pacienti od za&#345;azen&#237; do studie &#382;ili.</p><p>Po pe&#269;liv&#233;m sledov&#225;n&#237; v&#353;ech pacient&#367; p&#345;inesla studie jasn&#233; a statisticky v&#253;znamn&#233; v&#253;sledky.</p><p><strong>Kl&#237;&#269;ov&#225; zji&#353;t&#283;n&#237;: </strong>P&#345;id&#225;n&#237; l&#233;&#269;by TTFields ke standardn&#237; chemoterapii <strong>v&#253;znamn&#283; zlep&#353;ilo jak p&#345;e&#382;it&#237; bez progrese, tak celkov&#233; p&#345;e&#382;it&#237;</strong> pacient&#367; s glioblastomem.</p><p>&#8226; <strong>Del&#353;&#237; &#382;ivot bez r&#367;stu n&#225;doru:</strong> U pacient&#367; pou&#382;&#237;vaj&#237;c&#237;ch TTFields byl medi&#225;n do progrese<strong> 6,7 m&#283;s&#237;ce</strong> (medi&#225;n je st&#345;edn&#237; hodnota &#8211; polovina pacient&#367; &#382;ila bez r&#367;stu n&#225;doru d&#233;le a polovina krat&#353;&#237; dobu), ve srovn&#225;n&#237; se <strong>4,0 m&#283;s&#237;ci</strong> u pacient&#367; na standardn&#237; l&#233;&#269;b&#283;.</p><p>&#8226; <strong>Del&#353;&#237; celkov&#233; p&#345;e&#382;it&#237;:</strong> Pacienti s TTFields m&#283;li medi&#225;n p&#345;e&#382;it&#237; <strong>20,9 m&#283;s&#237;ce</strong>, zat&#237;mco pacienti na standardn&#237; l&#233;&#269;b&#283; <strong>16,0 m&#283;s&#237;ce</strong>. (D&#367;le&#382;it&#225; pozn&#225;mka: Tyto &#269;asy se m&#283;&#345;&#237; od za&#345;azen&#237; do studie, nikoli od p&#367;vodn&#237; diagn&#243;zy. K odhadu celkov&#233;ho p&#345;e&#382;it&#237; od diagn&#243;zy je t&#345;eba p&#345;i&#269;&#237;st p&#345;ibli&#382;n&#283; 3,8 m&#283;s&#237;ce.)</p><p><strong>Dlouhodob&#253; p&#345;&#237;nos</strong></p><p>Nejv&#253;razn&#283;j&#353;&#237; rozd&#237;ly se uk&#225;zaly p&#345;i pohledu na dlouhodob&#233; p&#345;e&#382;it&#237;.</p><p>Doba p&#345;e&#382;it&#237; od za&#345;azen&#237; do studie</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!ji-w!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 424w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 848w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 1272w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!ji-w!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png" width="686" height="171" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 424w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 848w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 1272w, /__u/substackcdn.com/image/fetch/$s_!ji-w!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F2bab7cf1-81f6-44bd-ba9c-75c2c9951e27_686x171.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p>P&#345;&#237;nosy l&#233;&#269;by TTFields byly pozorov&#225;ny nap&#345;&#237;&#269; v&#353;emi podskupinami pacient&#367;. To platilo i pro skupiny pacient&#367;, kter&#233; maj&#237; obecn&#283; hor&#353;&#237; progn&#243;zu, jako jsou pacienti star&#353;&#237; 65 let nebo ti, jejich&#382; n&#225;dor nem&#283;l p&#345;&#237;zniv&#253; genetick&#253; znak (metylaci MGMT promotoru).</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!OEA4!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!OEA4!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!OEA4!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc5b20c9d-0597-49c6-bb7d-43f47e55f450_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Bezpe&#269;nost a vedlej&#353;&#237; &#250;&#269;inky</strong></p><p>Studie jasn&#283; uk&#225;zala, &#382;e p&#345;id&#225;n&#237; za&#345;&#237;zen&#237; TTFields <strong>nezv&#253;&#353;ilo v&#253;skyt z&#225;va&#382;n&#253;ch syst&#233;mov&#253;ch vedlej&#353;&#237;ch &#250;&#269;ink&#367;</strong> ve srovn&#225;n&#237; se samotnou chemoterapi&#237;.</p><p>Jedin&#253;m &#269;ast&#253;m vedlej&#353;&#237;m &#250;&#269;inkem specifick&#253;m pro za&#345;&#237;zen&#237; TTFields bylo <strong>m&#237;rn&#233; a&#382; st&#345;edn&#283; v&#225;&#382;n&#233; podr&#225;&#382;d&#283;n&#237; k&#367;&#382;e</strong> pod elektrodami. Tento probl&#233;m se objevil p&#345;ibli&#382;n&#283; u 52 % pacient&#367; (tedy u v&#237;ce ne&#382; poloviny) pou&#382;&#237;vaj&#237;c&#237;ch za&#345;&#237;zen&#237;. Z&#225;va&#382;n&#233; ko&#382;n&#237; reakce byly velmi vz&#225;cn&#233; (pouze u 2 % pacient&#367;). Je tak&#233; d&#367;le&#382;it&#233; zm&#237;nit, &#382;e l&#233;&#269;ba vy&#382;aduje zna&#269;n&#233; nasazen&#237; ze strany pacienta, proto&#382;e za&#345;&#237;zen&#237; se mus&#237; nosit alespo&#328; 18 hodin denn&#283;.</p><p><strong>Z&#225;v&#283;r: Co to znamen&#225; pro pacienty?</strong></p><p>Z&#225;v&#283;rem studie je, &#382;e kombinace l&#233;&#269;by TTFields se standardn&#237; udr&#382;ovac&#237; chemoterapi&#237; temozolomidem <strong>p&#345;edstavuje prvn&#237; v&#253;znamn&#283;j&#353;&#237; pr&#367;lom v l&#233;&#269;b&#283; nov&#283; diagnostikovan&#233;ho glioblastomu za v&#237;ce ne&#382; deset let a p&#345;in&#225;&#353;&#237; nad&#283;ji pacient&#367;m a jejich rodin&#225;m.</strong></p><p><strong>Kl&#237;&#269;ov&#233; poznatky</strong></p><p>1. <strong>Prodlou&#382;en&#237; &#382;ivota:</strong> Kombinovan&#225; l&#233;&#269;ba (TTFields + chemoterapie) prokazateln&#283; prodlou&#382;ila &#382;ivot pacient&#367; o n&#283;kolik m&#283;s&#237;c&#367; ve srovn&#225;n&#237; se samotnou chemoterapi&#237;.</p><p>2. <strong>Zv&#253;&#353;en&#225; &#353;ance na dlouhodob&#233; p&#345;e&#382;it&#237;:</strong> Pacienti l&#233;&#269;en&#237; pomoc&#237; TTFields m&#283;li v&#253;razn&#283; vy&#353;&#353;&#237; &#353;anci, &#382;e budou na&#382;ivu dva i p&#283;t let po zah&#225;jen&#237; l&#233;&#269;by.</p><p>3. <strong>Dobr&#225; sn&#225;&#353;enlivost:</strong> L&#233;&#269;ba nep&#345;idala &#382;&#225;dn&#233; z&#225;va&#382;n&#233; celkov&#233; vedlej&#353;&#237; &#250;&#269;inky. Hlavn&#237;m vedlej&#353;&#237;m &#250;&#269;inkem bylo zvl&#225;dnuteln&#233; podr&#225;&#382;d&#283;n&#237; k&#367;&#382;e na hlav&#283;.</p><div><hr></div><p>Sou&#269;&#225;st&#237; l&#233;&#269;by je v &#345;ad&#283; p&#345;&#237;pad&#367; tak&#233; nasazen&#237; dexamethasonu, kter&#253; se standardn&#283; p&#345;edepisuje ke zm&#237;rn&#283;n&#237; peritumor&#225;ln&#237;ho ed&#233;mu a neurologick&#253;ch symptom&#367;. </p><p>N&#237;&#382;e stru&#269;n&#283; shrnut&#225; <a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">studie</a> nicm&#233;n&#283; potvrzuje negativn&#237; asociaci dexamethasonu s v&#253;sledky l&#233;&#269;by.</p><p><strong>Kl&#237;&#269;ov&#233; z&#225;v&#283;ry:</strong></p><ul><li><p>U&#382;&#237;v&#225;n&#237; dexamethasonu v p&#345;edopera&#269;n&#237;m nebo periopera&#269;n&#237;m obdob&#237; je spojeno s <strong>v&#253;razn&#283; hor&#353;&#237;m celkov&#253;m p&#345;e&#382;it&#237;m</strong> (HR: 1,33).</p></li><li><p>Negativn&#237; vliv byl zaznamen&#225;n i u <strong>p&#345;e&#382;it&#237; bez progrese onemocn&#283;n&#237;</strong> (HR: 1,77).</p></li><li><p>Kvalita d&#367;kaz&#367; pro celkov&#233; p&#345;e&#382;it&#237; je hodnocena jako st&#345;edn&#237;, zat&#237;mco pro p&#345;e&#382;it&#237; bez progrese jako n&#237;zk&#225;.</p></li><li><p>Zhor&#353;en&#233; p&#345;e&#382;it&#237; jako d&#367;sledek l&#233;&#269;by dexamethasonem koreluje s metabolickou teori&#237;, jeliko&#382; dexamethason zvy&#353;uje hladinu gluk&#243;zy, kterou glioblastom pou&#382;&#237;v&#225; jako prim&#225;rn&#237; palivo, p&#345;i&#269;em&#382; z&#225;rove&#328; kompromituje imunitn&#237; reakci, kter&#225; je prim&#225;rn&#237; lini&#237; obrany proti vzniku, progresi a rekurenci n&#225;doru.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!2ynf!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7106487b-c818-40e6-ab71-a5e3767adc09_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!2ynf!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7106487b-c818-40e6-ab71-a5e3767adc09_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!2ynf!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7106487b-c818-40e6-ab71-a5e3767adc09_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!2ynf!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7106487b-c818-40e6-ab71-a5e3767adc09_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!2ynf!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7106487b-c818-40e6-ab71-a5e3767adc09_2752x1536.png 1272w, 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8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p></p><p>Zdroje: </p><p><a href="https://www.nejm.org/doi/full/10.1056/NEJMoa043330">Stupp R, Mason WP, van den Bent MJ, Weller M, Fisher B, Taphoorn MJ, Belanger K, Brandes AA, Marosi C, Bogdahn U, Curschmann J, Janzer RC, Ludwin SK, Gorlia T, Allgeier A, Lacombe D, Cairncross JG, Eisenhauer E, Mirimanoff RO; European Organisation for Research and Treatment of Cancer Brain Tumor and Radiotherapy Groups; National Cancer Institute of Canada Clinical Trials Group. Radiotherapy plus concomitant and adjuvant temozolomide for glioblastoma. N Engl J Med. 2005 Mar 10;352(10):987-96. doi: 10.1056/NEJMoa043330. PMID: 15758009.</a></p><p><a href="https://jamanetwork.com/journals/jama/fullarticle/2666504">Stupp R, Taillibert S, Kanner A, et al. Effect of Tumor-Treating Fields Plus Maintenance Temozolomide vs Maintenance Temozolomide Alone on Survival in Patients With Glioblastoma: A Randomized Clinical Trial. </a><em><a href="https://jamanetwork.com/journals/jama/fullarticle/2666504">JAMA.</a></em><a href="https://jamanetwork.com/journals/jama/fullarticle/2666504"> 2017;318(23):2306&#8211;2316. doi:10.1001/jama.2017.18718</a></p><p><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">Arora, H., Mammi, M., Patel, N.M. </a><em><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">et al.</a></em><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3"> Dexamethasone and overall survival and progression free survival in patients with newly diagnosed glioblastoma: a meta-analysis. </a><em><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">J Neurooncol</a></em><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3"> </a><strong><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">166</a></strong><a href="https://link.springer.com/article/10.1007/s11060-023-04549-3">, 17&#8211;26 (2024). https://doi.org/10.1007/s11060-023-04549-3</a></p><div><hr></div><p>Vylou&#269;en&#237; odpov&#283;dnosti: Tato str&#225;nka neposkytuje l&#233;ka&#345;sk&#233; rady, profesion&#225;ln&#237; n&#225;zor, stanoven&#237; diagn&#243;zy nebo l&#233;&#269;bu v&#225;m, ani nikomu jin&#233;mu. Obsah a odkazy jsou poskytov&#225;ny pouze za &#250;&#269;elem vzd&#283;l&#225;v&#225;n&#237;. Poskytnut&#233; informace nenahrazuj&#237; profesion&#225;ln&#237; l&#233;ka&#345;skou p&#233;&#269;i a nem&#283;ly by b&#253;t pou&#382;ity m&#237;sto konzultace nebo n&#225;v&#353;t&#283;vy va&#353;eho l&#233;ka&#345;e. Neru&#269;&#237;m, ani neodpov&#237;d&#225;m za rady, diagn&#243;zy, slu&#382;by nebo v&#253;robky, ke kter&#253;m se dostanete skrze obsah t&#233;to str&#225;nky. Str&#225;nka vyjad&#345;uje pouze m&#233; osobn&#237; poznatky, n&#225;zory a pohledy na problematiku.</p>]]></content:encoded></item><item><title><![CDATA[Thymic Health and Its Impact on Adult Longevity and Disease Susceptibility]]></title><description><![CDATA[The Thymus as an Organ of Longevity]]></description><link>https://zdeneksipek.substack.com/p/thymic-health-and-its-impact-on-adult</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/thymic-health-and-its-impact-on-adult</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Fri, 08 May 2026 12:10:03 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!DMNb!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!DMNb!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!DMNb!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg" width="1200" height="675" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:675,&quot;width&quot;:1200,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:121201,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/196304786?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!DMNb!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F44d80e58-7306-496b-a778-0e36d2677076_1200x675.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>A comprehensive study involving over 27,000 individuals identifies the thymus&#8212;an organ traditionally viewed as nonfunctional in adults&#8212;as a central regulator of immune-mediated aging and long-term health. Using a deep learning framework to quantify &#8220;thymic health&#8221; from routine CT scans, researchers demonstrated that <strong>preserved thymic functionality is strongly associated with increased longevity and a significantly reduced risk of major diseases</strong>.</p><p><strong>Critical Takeaways:</strong></p><ul><li><p><strong>Mortality Risk:</strong> High thymic health is associated with an approximately 50% reduction in the risk of all-cause mortality compared to low thymic health.</p></li><li><p><strong>Disease Prevention:</strong> Individuals with high thymic health show a 36% lower incidence of lung cancer and a 63% to 92% reduction in cardiovascular disease (CVD) mortality.</p></li><li><p><strong>Highly Individualized Decay:</strong> While the thymus undergoes involution (decay) with age, the rate is highly individualized and influenced by sex, body mass index (BMI), and lifestyle factors.</p></li><li><p><strong>Inflammatory Link:</strong> Low thymic health is closely linked to systemic chronic inflammation and metabolic dysregulation, suggesting it may serve as a biomarker for immune resilience.</p></li></ul><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>Overview of the Thymus in Adulthood</strong></p><p>The thymus is a specialized immune organ responsible for maturing T cells and establishing a diverse T cell repertoire for adaptive immune responses. Historically, the medical consensus was that the thymus becomes largely nonfunctional in adults after undergoing involution&#8212;a process where thymic tissue is replaced by adipose (fat) tissue.</p><p>However, recent evidence challenges this &#8220;nonfunctional&#8221; status. Research indicates that:</p><ul><li><p>Adults who undergo thymectomy (surgical removal of the thymus) experience higher rates of disease and death decades later.</p></li><li><p>The thymus continues to produce T cells throughout adulthood, though the rate of production declines at varying speeds across the population.</p></li><li><p>The maintenance of thymic functionality is integral to combating age-associated diseases such as cancer and cardiovascular disease.</p></li></ul><p><strong>Methodology: AI-Based Thymic Quantification</strong></p><p>To objectively measure thymic functionality, researchers developed a deep learning framework to quantify &#8220;thymic health&#8221; from routine radiographic images.</p><p><strong>The Deep Learning Framework</strong></p><ul><li><p><strong>Development:</strong> The system was trained on 5,674 thoracic CT scans to identify compositional characteristics of the thymus as a proxy for functionality.</p></li><li><p><strong>Processing:</strong> The AI automatically localizes the thymic bed, extracts 4,096 features using self-supervised learning, and outputs a continuous &#8220;thymic health score&#8221; (0&#8211;100).</p></li><li><p><strong>Validation:</strong> The model was tested on two large, independent prospective cohorts totaling 27,612 individuals:</p><ul><li><p><strong>National Lung Screening Trial (NLST):</strong> 25,031 asymptomatic adults.</p></li><li><p><strong>Framingham Heart Study (FHS):</strong> 2,581 asymptomatic adults.</p></li></ul></li></ul><p><strong>Data Categorization</strong></p><p>Participants were ranked into three categories based on population percentiles:</p><ul><li><p><strong>Low Thymic Health:</strong> Bottom 25% (assumed to have lost most functionality).</p></li><li><p><strong>Average Thymic Health:</strong> Middle 50%.</p></li><li><p><strong>High Thymic Health:</strong> Top 25% (preserved functionality).</p></li></ul><p><strong>Clinical Consequences of Thymic Decay</strong></p><p>The study established a clear link between thymic health and various health outcomes over a 12-year follow-up period.</p><p><strong>Longevity and All-Cause Mortality</strong></p><p>Higher thymic health consistently correlated with lower mortality rates.</p><div class="captioned-image-container"><figure><a class="image-link image2" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Zbpl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f938bfe-cc69-43c4-a6de-e7285bb9b8a7_683x197.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Zbpl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f938bfe-cc69-43c4-a6de-e7285bb9b8a7_683x197.png 424w, /__u/substackcdn.com/image/fetch/$s_!Zbpl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f938bfe-cc69-43c4-a6de-e7285bb9b8a7_683x197.png 848w, /__u/substackcdn.com/image/fetch/$s_!Zbpl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f938bfe-cc69-43c4-a6de-e7285bb9b8a7_683x197.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Zbpl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5f938bfe-cc69-43c4-a6de-e7285bb9b8a7_683x197.png 1456w" sizes="100vw" loading="lazy"></picture><div></div></div></a></figure></div><p><strong>Cancer Incidence and Mortality</strong></p><p>Thymic health showed a protective effect against cancer, particularly in the NLST cohort (primarily smokers).</p><ul><li><p><strong>Lung Cancer Incidence:</strong> High thymic health individuals were 36% less likely to develop lung cancer (HR 0.64).</p></li><li><p><strong>Lung Cancer Mortality:</strong> High thymic health was associated with a nearly 50% reduction in death from lung cancer (1.1% vs. 2.0% at 6 years).</p></li><li><p><strong>Pan-Cancer Impact:</strong> Higher thymic health was associated with lower overall cancer-specific mortality.</p></li></ul><p><strong>Cardiovascular Disease (CVD)</strong></p><p>The thymus appears to have a significant, disease-agnostic relevance for cardiovascular health.</p><ul><li><p><strong>CVD Mortality (NLST):</strong> High thymic health reduced risk by 63%.</p></li><li><p><strong>CVD Mortality (FHS):</strong> High thymic health reduced risk by 92% (0.3% vs. 3.9% mortality).</p></li><li><p><strong>CVD Incidence (FHS):</strong> High thymic health was associated with a 74% reduction in new cardiovascular events (e.g., myocardial infarction, congestive heart failure).</p></li></ul><p><strong>Other Disease-Specific Mortalities</strong></p><p>Preserved thymic health was associated with lower mortality across diverse disease groups:</p><ul><li><p><strong>Pulmonary Disease:</strong> 61% lower mortality for high thymic health.</p></li><li><p><strong>Endocrine/Metabolic Disease:</strong> 68% lower mortality.</p></li><li><p><strong>Digestive System Disease:</strong> 54% lower mortality.</p></li></ul><p><strong>Determinants of Thymic Health</strong></p><p>Thymic decay is not solely a function of age; it is influenced by biological and environmental factors.</p><p><strong>Demographic and Biological Factors</strong></p><ul><li><p><strong>Sex:</strong> Females consistently exhibit higher thymic health than males across all age groups.</p></li><li><p><strong>Age:</strong> Thymic health significantly declines with age, yet there is &#8220;considerable variation&#8221; within the same age groups, indicating individualized rates of decay.</p></li><li><p><strong>Metabolic Health:</strong> Higher High-Density Lipoprotein (HDL) levels are positively associated with thymic health. Conversely, high triglycerides, fasting glucose, and blood pressure are negatively associated.</p></li></ul><p><strong>Lifestyle and Modifiable Factors</strong></p><ul><li><p><strong>Smoking:</strong> Both duration (years) and intensity (packs per day) are strongly negatively associated with thymic health.</p></li><li><p><strong>Obesity:</strong> Higher BMI is significantly linked to lower thymic health and fatty degeneration of the thymus.</p></li><li><p><strong>Physical Activity:</strong> Low thymic health is associated with increased frailty, slower walking speeds, and lower physical activity levels.</p></li></ul><p><strong>The Role of Inflammation</strong></p><p>The study suggests a &#8220;profound relationship&#8221; between systemic inflammation and thymic health, where each may drive the other.</p><ul><li><p><strong>Inflammatory Proteins:</strong> 24% of tested blood plasma proteins (including IL-6, IL-18, and VEGFA) were negatively associated with thymic health.</p></li><li><p><strong>Chronic Stress:</strong> Long-term systemic inflammation (measured via C-reactive protein over 3.0 mg/l for 5&#8211;10 years) was substantially linked to lower thymic health.</p></li><li><p><strong>Immunosenescence:</strong> Low thymic health appears to be a hallmark of immune-mediated aging, potentially leading to a weakened ability to combat neoantigens and pathogens.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VrLY!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!VrLY!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png" width="1456" height="813" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/baf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:813,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:4833716,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/196304786?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!VrLY!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fbaf52eb8-1806-4392-ba79-8ec74baf10fc_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Conclusion and Future Implications</strong></p><p><strong>The findings reposition the thymus as a central pillar of adult health, suggesting that its assessment could refine disease screening and preventive strategies.</strong></p><p><strong>Preventive and Regenerative Opportunities:</strong></p><ul><li><p><strong>Lifestyle Interventions:</strong> Smoking cessation, weight loss, exercise, and healthy diet may preserve or improve thymic health.</p></li><li><p><strong>Pharmacological Targets:</strong> Anti-inflammatory and anti-obesity drugs could potentially reduce or reverse thymic decay.</p></li><li><p><strong>Clinical Screening:</strong> AI-based thymic health assessments could identify high-risk individuals for earlier cancer or cardiovascular screening.</p></li></ul><p><strong>Final Assessment:</strong> The study concludes that &#8220;maintaining thymic health is integral to adult health and longevity,&#8221; challenging the long-held belief that the organ is irrelevant in adulthood and opening new avenues for regenerative medicine to promote healthy aging.</p><div><hr></div><p>I initiated my own version of Fahy&#180;s <strong>Thymus Rejuvenation Protocol </strong>(<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/acel.13028">1</a>), (<a href="https://www.youtube.com/watch?v=mLHGf4FJwbQ">2</a>) in January 2025.</p><p><strong>Supplementation</strong></p><p><strong>Dosing of Amino Acids</strong></p><ul><li><p><strong>AAKG (Arginine (70.4%) Alpha-Ketoglutarate (28%))</strong>: 4 g approximately two hours after exercise on an empty stomach (higher doses have a stronger effect but may cause gastrointestinal discomfort; the upper tolerable limit for L-arginine is 30 g).</p></li><li><p><strong>Glutamine</strong>: 2&#8211;3 g two hours after training.</p></li><li><p><strong>Ornithine</strong>: 2 g before bedtime, synergistic effect with arginine.</p></li></ul><p><strong>Other Synergistic Compounds</strong></p><ul><li><p><strong>Lysine</strong>: 2 g with arginine to enhance hGH release.</p></li><li><p><strong>GABA (Gamma-Aminobutyric Acid)</strong>: 1&#8211;3 g before bedtime to induce relaxation and increase nocturnal hGH secretion.</p></li></ul><p><strong>Additional Support</strong></p><ul><li><p><strong>Collagen Peptides</strong>: 5&#8211;10 g daily to support recovery.</p></li><li><p><strong>Berberine</strong>: 3*400 mg.</p></li><li><p><strong>DHEA</strong>: 25 mg.</p></li><li><p><strong>Zinc</strong>: 15-30 mg.</p></li><li><p><strong>Creatine</strong>: 5 g.</p></li></ul><div><hr></div><p><strong>Fasting</strong></p><p><strong>Intermittent Extended Fasting</strong></p><ul><li><p><strong>24-hour fast once a week</strong> for a significant increase in hGH production (by approximately 200-400%).</p></li><li><p>Alternatively, a <strong>protein-sparing fast once a week</strong> (150-200 g of protein daily&#8212;chicken, fish with sides like broccoli, parsley, peppers, and arugula) to protect muscle mass.</p></li></ul><div><hr></div><p><strong>Exercise</strong></p><p><strong>Timing</strong></p><ul><li><p>Train on an empty stomach for maximum hGH response. Morning HIIT or strength training causes a significant increase in hGH post-exercise.</p></li></ul><p><strong>Intensity</strong></p><ul><li><p>Shorter, intense workouts:</p><ul><li><p><strong>HIIT</strong>: 20&#8211;30 minutes (twice a week).</p></li><li><p><strong>Strength Training</strong>: Compound exercises (two to three times a week).</p></li></ul></li></ul><p><strong>Recovery</strong></p><ul><li><p>Light activity (e.g., walking, yoga, or stretching) after intense workouts to maintain fat burning and support immunity.</p></li></ul><div><hr></div><p><strong>Sleep Optimization</strong></p><p><strong>Sleep Hygiene</strong></p><ul><li><p>Consistent sleep schedule&#8212;optimal sleep score of at least 90% of days in a month.</p></li></ul><p><strong>Supplements for Sleep Quality</strong></p><ul><li><p><strong>Glycine</strong>: 3-5 g before bedtime, or 3-5 g during the night.</p></li><li><p><strong>Melatonin</strong>: 3&#8211;10 mg before bedtime to improve deep sleep and hGH.</p></li><li><p><strong>Ashwagandha (KSM-66)</strong>: 600 mg daily to reduce cortisol, which can inhibit hGH.</p></li><li><p><strong>Magnesium (Glycinate/Malate)</strong>: 200&#8211;400 mg before bedtime for relaxation.</p></li><li><p><strong>Reishi</strong>: 500mg before bedtime for relaxation and vivid dreams.</p></li></ul><div><hr></div><p><strong>Additional Methods</strong></p><p><strong>Cold Therapy</strong></p><ul><li><p>Exposure to cold (e.g., ice baths or cold showers):</p><ul><li><p>3&#8211;5 minutes daily for potential hGH stimulation and inflammation reduction.</p></li><li><p>Cold exposure&#8212;e.g., exercising outdoors with minimal clothing for 1-2 hours followed by warming up.</p></li></ul></li></ul><p><strong>Red Light Therapy and Meditation</strong></p><ul><li><p>Use near-infrared light (NIR):</p><ul><li><p>5&#8211;20 minutes on the chest and abdomen to support thymus function.</p></li></ul></li></ul><p><strong>Supporting Autophagy and Detoxification</strong></p><ul><li><p>Include foods or supplements that promote cellular cleansing during fasting:</p><ul><li><p><strong>Green Tea (EGCG)</strong>: 2&#8211;3 cups daily.</p></li><li><p><strong>Nettle</strong>.</p></li><li><p><strong>Dandelion</strong>.</p></li></ul></li></ul><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Source:</p><p><a href="https://www.nature.com/articles/s41586-026-10242-y">Bernatz, S., Prudente, V., Pai, S. </a><em><a href="https://www.nature.com/articles/s41586-026-10242-y">et al.</a></em><a href="https://www.nature.com/articles/s41586-026-10242-y"> Thymic health consequences in adults. </a><em><a href="https://www.nature.com/articles/s41586-026-10242-y">Nature</a></em><a href="https://www.nature.com/articles/s41586-026-10242-y"> </a><strong><a href="https://www.nature.com/articles/s41586-026-10242-y">652</a></strong><a href="https://www.nature.com/articles/s41586-026-10242-y">, 986&#8211;994 (2026). https://doi.org/10.1038/s41586-026-10242-y</a></p>]]></content:encoded></item><item><title><![CDATA[Optimalizace cholesterolu]]></title><description><![CDATA[Rizikov&#283; v&#225;&#382;en&#253; apolipoprotein B (RW-apoB): Nov&#253; standard v predikci rizika ischemick&#233; choroby srde&#269;n&#237;]]></description><link>https://zdeneksipek.substack.com/p/optimalizace-cholesterolu</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/optimalizace-cholesterolu</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 04 Apr 2026 12:17:56 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!eNrO!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!eNrO!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 424w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 848w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 1272w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!eNrO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png" width="1298" height="723" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 424w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 848w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 1272w, /__u/substackcdn.com/image/fetch/$s_!eNrO!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F278d7547-b602-43c1-90a9-b0450f75ebd8_1298x723.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>Tento &#269;l&#225;nek syntetizuje kl&#237;&#269;ov&#233; poznatky z v&#253;zkumu Dr. Eliase Bj&#246;rnsona a kolektivu, publikovan&#233;ho v <em>European Heart Journal</em>, kter&#253; p&#345;edstavuje <strong>rizikov&#283; v&#225;&#382;en&#253; apolipoprotein B (RW-apoB)</strong> jako nov&#253;, p&#345;esn&#283;j&#353;&#237; biomarker pro hodnocen&#237; rizika ischemick&#233; choroby srde&#269;n&#237; (ICHS). Tradi&#269;n&#237; metriky jako LDL cholesterol (LDL-C), non-HDL cholesterol (non-HDL-C) a samotn&#253; apoB maj&#237; sv&#225; omezen&#237;, proto&#382;e bu&#271; ignoruj&#237; po&#269;et &#269;&#225;stic, nebo neberou v &#250;vahu <strong>rozd&#237;lnou patogenitu r&#367;zn&#253;ch</strong> typ&#367; <strong>lipoprotein&#367;</strong>.</p><p>RW-apoB integruje celkov&#253; po&#269;et &#269;&#225;stic s jejich specifickou aterogenitou do jedin&#233;ho &#269;&#237;sla. V&#253;zkum na kohort&#283; UK Biobank a dal&#353;&#237;ch validiza&#269;n&#237;ch studi&#237;ch (MESA, FOS, SCAPIS) prok&#225;zal, &#382;e RW-apoB v&#253;razn&#283; l&#233;pe stratifikuje riziko, identifikuje p&#345;ibli&#382;n&#283; 34 % osob, kter&#233; jsou tradi&#269;n&#237;mi metodami chybn&#283; klasifikov&#225;ny, a p&#345;edstavuje z&#225;sadn&#237; n&#225;stroj pro hodnocen&#237; rezidu&#225;ln&#237;ho rizika u pacient&#367; l&#233;&#269;en&#253;ch statiny.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">D&#283;kuji, &#382;e &#269;tete Zdenek Sipek Substack! P&#345;ihlaste se k bezplatn&#233;mu odb&#283;ru nov&#253;ch &#269;l&#225;nk&#367; a podpo&#345;te tak mou pr&#225;ci.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>1. Omezen&#237; tradi&#269;n&#237;ch lipidov&#253;ch marker&#367;</strong></p><p>Sou&#269;asn&#225; klinick&#225; praxe se op&#237;r&#225; o n&#283;kolik marker&#367;, z nich&#382; ka&#382;d&#253; m&#225; specifick&#233; nedostatky v predikci rizika ICHS:</p><ul><li><p><strong>LDL cholesterol (LDL-C):</strong> M&#283;&#345;&#237; obsah cholesterolu, nikoliv po&#269;et &#269;&#225;stic. Ignoruje lipoproteiny bohat&#233; na triglyceridy (TRL). Je pova&#382;ov&#225;n za nejm&#233;n&#283; p&#345;esn&#253; z modern&#237;ch lipidov&#253;ch marker&#367;.</p></li><li><p><strong>Non-HDL cholesterol (non-HDL-C):</strong> Zahrnuje ve&#353;ker&#253; cholesterol v aterogenn&#237;ch &#269;&#225;stic&#237;ch (LDL, Lp(a), TRL). Je lep&#353;&#237;m prediktorem ne&#382; LDL-C, ale st&#225;le m&#283;&#345;&#237; pouze obsah cholesterolu, nikoliv po&#269;et &#269;&#225;stic.</p></li><li><p><strong>Apolipoprotein B (apoB):</strong> P&#345;edstavuje celkov&#253; po&#269;et v&#353;ech aterogenn&#237;ch &#269;&#225;stic (ka&#382;d&#225; &#269;&#225;stice obsahuje p&#345;esn&#283; jednu molekulu apoB). A&#269;koliv je v mnoha studi&#237;ch pova&#382;ov&#225;n za dosavadn&#237; &#8220;zlat&#253; standard&#8221;, jeho slabinou je p&#345;edpoklad, &#382;e v&#353;echny &#269;&#225;stice nesouc&#237; apoB jsou stejn&#283; nebezpe&#269;n&#233;.</p></li></ul><p><strong>2. Koncept a v&#253;po&#269;et RW-apoB</strong></p><p>RW-apoB vych&#225;z&#237; z pozn&#225;n&#237;, &#382;e lipoproteiny obsahuj&#237;c&#237; apoB nejsou z hlediska aterogenn&#237;ho rizika rovnocenn&#233;. V&#253;zkum zalo&#382;en&#253; na mendelovsk&#233; randomizaci ukazuje n&#225;sleduj&#237;c&#237; relativn&#237; aterogenitu na jednu &#269;&#225;stici:</p><p><strong>Typ lipoproteinu</strong></p><p><strong>Relativn&#237; aterogenita (ve srovn&#225;n&#237; s LDL)</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!GNIL!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!GNIL!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!GNIL!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F65264230-641f-4fcc-94a7-3e19c8978e1e_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Rovnice pro v&#253;po&#269;et</strong></p><p>Aby byl tento koncept pou&#382;iteln&#253; v klinick&#233; praxi, byla odvozena rovnice vyu&#382;&#237;vaj&#237;c&#237; standardn&#283; dostupn&#233; parametry:</p><p><strong>RW-apoB (mg/dL) = 11,65 &#215; TG (mmol/L) + 0,215 &#215; Lp(a) (nmol/L) + 0,736 &#215; apoB (mg/dL)</strong></p><p><em>Pozn&#225;mka: Metrika je kalibrov&#225;na tak, aby medi&#225;n populace RW-apoB odpov&#237;dal medi&#225;nu nam&#283;&#345;en&#233;ho apoB (p&#345;ibli&#382;n&#283; 105 mg/dL v UK Biobank).</em></p><p><strong>3. Kl&#237;&#269;ov&#225; zji&#353;t&#283;n&#237; v&#253;zkumu</strong></p><p>Anal&#253;za dat z UK Biobank (285 060 subjekt&#367;) a n&#225;sledn&#225; validace na dal&#353;&#237;ch kohort&#225;ch p&#345;inesla n&#225;sleduj&#237;c&#237; v&#253;sledky:</p><ul><li><p><strong>Zlep&#353;en&#237; predikce:</strong> RW-apoB dos&#225;hl vy&#353;&#353;&#237;ho indexu shody (Harrell&#8217;s C-index 0,619) ve srovn&#225;n&#237; s apoB (0,591), non-HDL-C (0,588) a LDL-C (0,573).</p></li><li><p><strong>Masivn&#237; reklasifikace rizika:</strong> P&#345;i pou&#382;it&#237; RW-apoB nam&#237;sto standardn&#237;ho apoB bylo 52 % jedinc&#367; p&#345;e&#345;azeno o 10 a v&#237;ce percentil&#367;.</p></li><li><p><strong>Identifikace skryt&#233;ho rizika:</strong> P&#345;ibli&#382;n&#283; jedna t&#345;etina osob v nejvy&#353;&#353;&#237;m kvintilu rizika podle RW-apoB byla standardn&#237;m m&#283;&#345;en&#237;m apoB chybn&#283; klasifikov&#225;na jako osoby s ni&#382;&#353;&#237;m rizikem. Tito lid&#233; maj&#237; typicky vysok&#233; TG nebo Lp(a), ale zd&#225;nliv&#283; norm&#225;ln&#237; hladiny apoB nebo LDL-C.</p></li><li><p><strong>Pr&#367;kaznost v multivariantn&#237;ch modelech:</strong> V modelech zahrnuj&#237;c&#237;ch RW-apoB i apoB sou&#269;asn&#283; z&#367;stal statisticky v&#253;znamn&#253;m prediktorem pouze RW-apoB, co&#382; nazna&#269;uje, &#382;e pln&#283; absorbuje a roz&#353;i&#345;uje prediktivn&#237; hodnotu standardn&#237;ho apoB.</p></li></ul><p><strong>4. Klinick&#233; aplikace a c&#237;lov&#233; hodnoty</strong></p><p><strong>Rezidu&#225;ln&#237; riziko u l&#233;&#269;by statiny</strong></p><p>RW-apoB je mimo&#345;&#225;dn&#283; u&#382;ite&#269;n&#253; u pacient&#367; ji&#382; u&#382;&#237;vaj&#237;c&#237;ch statiny. Statiny prim&#225;rn&#283; sni&#382;uj&#237; LDL, ale maj&#237; minim&#225;ln&#237; vliv na Lp(a) a variabiln&#237; vliv na TRL. U t&#283;chto pacient&#367; se standardn&#237; markery (LDL-C, apoB) st&#225;vaj&#237; m&#233;n&#283; spolehliv&#253;mi. RW-apoB dok&#225;&#382;e identifikovat &#8220;rezidu&#225;ln&#237; lipidov&#233; riziko&#8221;, kter&#233; u pacient&#367; na statinech &#269;asto tvo&#345;&#237; pr&#225;v&#283; Lp(a) a TRL.</p><p><strong>Optim&#225;ln&#237; hodnoty pro dlouhov&#283;kost</strong></p><p>Dr. Bj&#246;rnson navrhuje ambici&#243;zn&#237; c&#237;le pro osoby usiluj&#237;c&#237; o maxim&#225;ln&#237; prevenci ateroskler&#243;zy:</p><ul><li><p><strong>Optim&#225;ln&#237; RW-apoB:</strong> 40&#8211;50 mg/dL. P&#345;i t&#283;chto hladin&#225;ch je riziko rozvoje v&#253;znamn&#233; ateroskler&#243;zy b&#283;hem n&#283;kolika desetilet&#237; velmi n&#237;zk&#233;.</p></li><li><p><strong>Prahov&#225; hodnota pro rozvoj onemocn&#283;n&#237;:</strong> Hodnoty nad 80&#8211;90 mg/dL jsou u v&#283;t&#353;iny lid&#237; spojeny s progresivn&#237;m ukl&#225;d&#225;n&#237;m pl&#225;t&#367; v tepn&#225;ch.</p></li><li><p><strong>Triglyceridy (TG):</strong> Ide&#225;ln&#283; pod 1 mmol/L (cca 90 mg/dL).</p></li></ul><p><strong>5. Kauzalita a biologick&#233; souvislosti</strong></p><p><strong>Role apoB v aterogenezi</strong></p><p>Lipoproteiny obsahuj&#237;c&#237; apoB jsou <strong>kauz&#225;ln&#237;mi faktory</strong> ateroskler&#243;zy. Jsou nezbytn&#253;m substr&#225;tem; bez jejich p&#345;&#237;tomnosti v arteri&#225;ln&#237; st&#283;n&#283; nem&#367;&#382;e vzniknout plak, bez ohledu na jin&#233; rizikov&#233; faktory (krevn&#237; tlak, z&#225;n&#283;t). Pokud je hladina apoB extr&#233;mn&#283; n&#237;zk&#225; (nap&#345;. 20 mg/dL), je pravd&#283;podobn&#233;, &#382;e k rozvoji ateroskler&#243;zy nedojde ani p&#345;i p&#345;&#237;tomnosti hypertenze nebo vysok&#233;ho CRP.</p><p><strong>Genetick&#225; determinace a Lp(a)</strong></p><p>Lipoprotein(a) je z 80&#8211;90 % geneticky podm&#237;n&#283;n a jeho hladina se b&#283;hem &#382;ivota u v&#283;t&#353;iny lid&#237; m&#283;n&#237; jen minim&#225;ln&#283;. Jeho vysok&#225; aterogenita je pravd&#283;podobn&#283; zp&#367;sobena strukturou (obsahuje protein apolipoprotein(a) a oxidovan&#233; fosfolipidy), kter&#225; podporuje z&#225;n&#283;t a retenci v c&#233;vn&#237; st&#283;n&#283;.</p><p><strong>Evolu&#269;n&#237; a popula&#269;n&#237; perspektiva</strong></p><ul><li><p><strong>Hunter-gatherer model:</strong> Populace jako Hadza v Tanzanii si udr&#382;uj&#237; hladiny LDL-C kolem 1,8 mmol/L po cel&#253; &#382;ivot a vykazuj&#237; minim&#225;ln&#237; zn&#225;mky kardiovaskul&#225;rn&#237;ch onemocn&#283;n&#237;. V z&#225;padn&#237; populaci hladiny lipid&#367; s v&#283;kem typicky stoupaj&#237;, co&#382; RW-apoB zachycuje jako kumulativn&#237; expozici.</p></li><li><p><strong>Hypot&#233;za &#8220;Warrior Protein&#8221;:</strong> Existuj&#237; spekulace, &#382;e vysok&#253; Lp(a) mohl v evoluci poskytovat v&#253;hodu v rychlej&#353;&#237;m hojen&#237; ran po traumatech, co&#382; by vysv&#283;tlovalo jeho p&#345;etrv&#225;n&#237; v populaci (cca 20 % lid&#237; m&#225; vysok&#253; Lp(a)).</p></li></ul><p><strong>6. Z&#225;v&#283;r a doporu&#269;en&#237;</strong></p><p>RW-apoB p&#345;edstavuje v&#253;znamn&#253; posun v personalizovan&#233; medic&#237;n&#283;. Umo&#382;&#328;uje klinik&#367;m i pacient&#367;m porozum&#283;t celkov&#233; aterogenn&#237; z&#225;t&#283;&#382;i prost&#345;ednictv&#237;m jedin&#233;ho &#269;&#237;sla.</p><p><strong>Hlavn&#237; z&#225;v&#283;ry pro praxi:</strong></p><ol><li><p><strong>M&#283;&#345;te Lp(a) a apoB:</strong> Bez t&#283;chto parametr&#367; nelze pln&#283; vyhodnotit riziko, zejm&#233;na u osob s rodinnou anamn&#233;zou ICHS.</p></li><li><p><strong><a href="https://www.longevity-tools.com/calculation/RW-ApoB">Pou&#382;&#237;vejte kalkul&#225;tor RW-apoB</a></strong>.</p></li><li><p><strong>Nepodce&#328;ujte triglyceridy:</strong> I zv&#253;&#353;en&#233; TG (kolem 1-1,5 mmol/L) nesou zna&#269;n&#233; riziko, kter&#233; RW-apoB penalizuje 4&#8211;5x v&#237;ce ne&#382; LDL.</p></li><li><p><strong>Agresivn&#237; prevence:</strong> U vysoce rizikov&#253;ch pacient&#367; na statinech m&#367;&#382;e vysok&#233; RW-apoB signalizovat pot&#345;ebu dal&#353;&#237; intenzifikace l&#233;&#269;by (nap&#345;. inhibitory PCSK9 nebo budouc&#237; l&#233;ky na sn&#237;&#382;en&#237; Lp(a)).</p><div><hr></div></li></ol><p><strong>Optimalizace hladiny cholesterolu</strong> (sn&#237;&#382;en&#237; celkov&#233;ho cholesterolu z 7 mmol/l na 4 mmol/l) vy&#382;aduje kombinaci dietn&#237;ch zm&#283;n, pravideln&#233; fyzick&#233; aktivity, &#250;pravy &#382;ivotn&#237;ho stylu, nasazen&#237; dopl&#328;k&#367; stravy a v n&#283;kter&#253;ch p&#345;&#237;padech i l&#233;k&#367;.</p><p><strong>1. Dietn&#237; opat&#345;en&#237;</strong></p><p>Z&#225;kladem je &#250;prava stravy s c&#237;lem sn&#237;&#382;it p&#345;&#237;jem nasycen&#253;ch tuk&#367; a zv&#253;&#353;it p&#345;&#237;jem potravin, kter&#233; podporuj&#237; zdravou hladinu cholesterolu.</p><p><strong>a) Sn&#237;&#382;en&#237; p&#345;&#237;jmu nasycen&#253;ch tuk&#367;</strong></p><ul><li><p><strong>Vyh&#253;bejte se:</strong></p><ul><li><p><strong>Pr&#367;myslov&#283; zpracovan&#253;m potravin&#225;m!</strong></p></li><li><p>Tu&#269;n&#253;m ml&#233;&#269;n&#253;m v&#253;robk&#367;m (<strong>plnotu&#269;n&#233; ml&#233;ko</strong>, m&#225;slo,<strong> smetana, s&#253;ry s vysok&#253;m obsahem tuku</strong>).</p></li><li><p><strong>&#268;erven&#233;mu masu a zpracovan&#253;m masn&#253;m v&#253;robk&#367;m (sal&#225;my, p&#225;rky, klob&#225;sy).</strong></p></li><li><p><strong>Tropick&#253;m olej&#367;m (palmov&#253;, kokosov&#253; olej).</strong></p></li></ul></li><li><p><strong>Nahra&#271;te je:</strong></p><ul><li><p>N&#237;zkotu&#269;n&#253;mi ml&#233;&#269;n&#253;mi v&#253;robky (eidam 30%, jogurt, kef&#237;r).</p></li><li><p>Libov&#253;m masem (ku&#345;ec&#237;, kr&#367;t&#237;, ryby) nebo rostlinn&#253;mi zdroji b&#237;lkovin (lu&#353;t&#283;niny, tofu, tempeh).</p></li><li><p><strong>Zdrav&#253;mi tuky</strong> (olivov&#253; olej, avok&#225;do,<strong> o&#345;echy)</strong>.</p></li><li><p><strong>Houbami </strong>(obsahuj&#237; <strong>lovastatin</strong>)</p></li></ul></li></ul><p><strong>b) Zv&#253;&#353;en&#237; p&#345;&#237;jmu vl&#225;kniny</strong></p><p>Vl&#225;knina (rozpustn&#225; vl&#225;knina) pom&#225;h&#225; sni&#382;ovat hladinu cholesterolu t&#237;m, &#382;e v&#225;&#382;e cholesterol v za&#382;&#237;vac&#237;m traktu a pom&#225;h&#225; ho odv&#225;d&#283;t z t&#283;la.</p><ul><li><p><strong>Potraviny bohat&#233; na vl&#225;kninu:</strong></p><ul><li><p><strong>Ovesn&#233; vlo&#269;ky</strong>, je&#269;men, celozrnn&#233; pe&#269;ivo a cere&#225;lie.</p></li><li><p>Ovoce (<strong>jablka</strong>, citrusy, bobulovit&#233; plody - <strong>bor&#367;vky</strong> apod.).</p></li><li><p>Zelenina <strong>(brokolice, kv&#283;t&#225;k, mrkev, sladk&#233; brambory</strong>).</p></li><li><p>Lu&#353;t&#283;niny (<strong>&#269;o&#269;ka</strong>, fazole, hr&#225;ch).</p></li><li><p>Ko&#345;en&#237;: <strong>&#268;esnek</strong>, z&#225;zvor, kurkuma, sko&#345;ice, kari, fenugreek (p&#237;skavice).</p></li></ul></li></ul><p><strong>c) Zdrav&#233; tuky a Omega-3 mastn&#233; kyseliny</strong></p><p>Zdrav&#233; tuky pom&#225;haj&#237; zvy&#353;ovat hladinu &#8220;dobr&#233;ho&#8221; HDL cholesterolu, kter&#253; podporuje sn&#237;&#382;en&#237; celkov&#233;ho cholesterolu.</p><ul><li><p><strong>Za&#345;a&#271;te do j&#237;deln&#237;&#269;ku:</strong></p><ul><li><p>Mastn&#233; ryby (sle&#271;, losos, makrela, sardinky) 3-7x t&#253;dn&#283;.</p></li><li><p>O&#345;echy (<strong>mandle, vla&#353;sk&#233;, pekanov&#233; o&#345;echy</strong>).</p></li><li><p>Semena <strong>(ln&#283;n&#233;, chia)</strong>.</p></li></ul></li></ul><p><strong>d)Vy&#345;azen&#237; transmastn&#253;ch kyselin</strong></p><p><strong>Transmastn&#233; kyseliny zvy&#353;uj&#237; hladinu &#8220;&#353;patn&#233;ho&#8221; LDL cholesterolu, proto je d&#367;le&#382;it&#233; se jim zcela vyh&#253;bat!!!</strong></p><ul><li><p><strong>Vyh&#253;bejte se:</strong></p><ul><li><p><strong>Zpracovan&#253;m potravin&#225;m, su&#353;enk&#225;m, chips&#367;m, fast foodu&#8230;</strong></p></li><li><p><strong>Margar&#237;n&#367;m a dal&#353;&#237;m ztu&#382;en&#253;m tuk&#367;m.</strong></p></li></ul></li></ul><p><strong>e) Fytosteroly a stanoly</strong></p><p>Fytosteroly a stanoly mohou pomoci sn&#237;&#382;it hladinu cholesterolu blokov&#225;n&#237;m jeho absorpce ve st&#345;ev&#283;. </p><p><strong>2. Fyzick&#225; aktivita</strong></p><p>Pravideln&#225; fyzick&#225; aktivita zvy&#353;uje hladinu HDL cholesterolu a pom&#225;h&#225; p&#345;i kontrole hmotnosti.</p><ul><li><p><strong>Doporu&#269;en&#237;:</strong></p><ul><li><p><strong>Ch&#367;ze</strong>: 8000-12000 krok&#367; denn&#283;</p></li><li><p><strong>Aerobn&#237; cvi&#269;en&#237;:</strong> alespo&#328; 150 minut st&#345;edn&#283; intenzivn&#237; aktivity t&#253;dn&#283; (rychl&#225; ch&#367;ze, plav&#225;n&#237;, cyklistika).</p></li><li><p><strong>Posilovac&#237; cvi&#269;en&#237;:</strong> alespo&#328; 2x t&#253;dn&#283;.</p></li><li><p><strong>Denn&#237; pohyb:</strong> za&#345;a&#271; pohyb i b&#283;hem b&#283;&#382;n&#233;ho dne (cho&#271; po schodech, v&#237;ce se proch&#225;zej).</p></li><li><p><strong>J&#243;ga a stre&#269;ink</strong></p></li></ul></li></ul><p><strong>3. Zm&#283;na &#382;ivotn&#237;ho stylu</strong></p><p>N&#283;kter&#233; zm&#283;ny v &#382;ivotn&#237;m stylu mohou v&#253;znamn&#283; p&#345;isp&#283;t ke sn&#237;&#382;en&#237; cholesterolu.</p><ul><li><p><strong>Omezen&#237; alkoholu:</strong> M&#237;rn&#225; konzumace alkoholu (nap&#345;. 1 sklenka v&#237;na denn&#283;) m&#367;&#382;e zlep&#353;it HDL cholesterol, ale nadm&#283;rn&#225; konzumace je &#353;kodliv&#225;.</p></li><li><p><strong>Udr&#382;en&#237; zdrav&#233; hmotnosti:</strong> Redukce hmotnosti o 5-10 % m&#367;&#382;e v&#253;znamn&#283; sn&#237;&#382;it hladinu LDL cholesterolu.</p></li></ul><p><strong>4.</strong> <strong>Doporu&#269;en&#233; suplementy</strong></p><p><strong>1. Citrus Bergamot</strong></p><ul><li><p><strong>&#218;&#269;inky:</strong> Citrusov&#253; extrakt z bergamotu m&#367;&#382;e sni&#382;ovat hladinu LDL cholesterolu, triglycerid&#367; a zvy&#353;ovat HDL cholesterol d&#237;ky vysok&#233;mu obsahu polyfenol&#367;.</p></li><li><p><strong>D&#225;vkov&#225;n&#237;:</strong> 500&#8211;1000 mg denn&#283;, obvykle ve dvou d&#225;vk&#225;ch (500 mg r&#225;no a 500 mg ve&#269;er).</p></li></ul><p><strong>2. Berberin</strong></p><ul><li><p><strong>&#218;&#269;inky:</strong> Berberin je alkaloid, kter&#253; se nach&#225;z&#237; v rostlin&#225;ch jako je d&#345;i&#353;&#357;&#225;l. Je prok&#225;z&#225;no, &#382;e sni&#382;uje hladinu LDL cholesterolu, triglycerid&#367; a m&#225; p&#345;&#237;zniv&#253; vliv na hladinu cukru v krvi.</p></li><li><p><strong>D&#225;vkov&#225;n&#237;:</strong> 500 mg 2-3x denn&#283; (celkov&#225; denn&#237; d&#225;vka 1500 mg).</p></li></ul><p><strong>3. Niacin (Vitamin B3)</strong></p><ul><li><p><strong>&#218;&#269;inky:</strong> Niacin ve vysok&#253;ch d&#225;vk&#225;ch zvy&#353;uje hladinu HDL cholesterolu a sni&#382;uje LDL cholesterol. Je v&#353;ak t&#345;eba ho u&#382;&#237;vat pod dohledem l&#233;ka&#345;e, proto&#382;e m&#367;&#382;e m&#237;t vedlej&#353;&#237; &#250;&#269;inky (nap&#345;. n&#225;valy horka).</p></li><li><p><strong>D&#225;vkov&#225;n&#237;:</strong> 500 mg a&#382; 2 g denn&#283;, ale obvykle se za&#269;&#237;n&#225; na ni&#382;&#353;&#237; d&#225;vce (nap&#345;. 500 mg) a postupn&#283; se zvy&#353;uje.</p></li></ul><p>4. Policosanol</p><ul><li><p>&#218;&#269;inky: Policosanol je sm&#283;s alkohol&#367; z&#237;skan&#253;ch z rostlin (nap&#345;. cukrov&#233; t&#345;tiny). Pom&#225;h&#225; sni&#382;ovat LDL cholesterol a podporuje kardiovaskul&#225;rn&#237; zdrav&#237;.</p></li><li><p>D&#225;vkov&#225;n&#237;: 10-20 mg denn&#283;, v&#283;t&#353;inou ve ve&#269;ern&#237;ch hodin&#225;ch.</p></li></ul><p>5. Koenzym Q10 (CoQ10)</p><ul><li><p>&#218;&#269;inky: P&#345;i u&#382;&#237;v&#225;n&#237; statin&#367; je doporu&#269;eno u&#382;&#237;vat CoQ10, proto&#382;e statiny mohou sn&#237;&#382;it jeho hladinu v t&#283;le. CoQ10 m&#225; antioxida&#269;n&#237; vlastnosti a podporuje zdrav&#237; srdce.</p></li><li><p>D&#225;vkov&#225;n&#237;: 100&#8211;200 mg denn&#283;.</p></li></ul><p>6. Psyllium</p><ul><li><p>&#218;&#269;inky: Rozpustn&#225; vl&#225;knina z psyllia m&#367;&#382;e sni&#382;ovat LDL cholesterol t&#237;m, &#382;e v&#225;&#382;e cholesterol ve st&#345;evech a podporuje jeho vylu&#269;ov&#225;n&#237;.</p></li><li><p>D&#225;vkov&#225;n&#237;: 5-10 g psyllia denn&#283;, nejl&#233;pe p&#345;ed j&#237;dlem s dostatkem vody.</p></li></ul><p>7. Fytosteroly</p><ul><li><p>&#218;&#269;inky: Fytosteroly sni&#382;uj&#237; vst&#345;eb&#225;v&#225;n&#237; cholesterolu ve st&#345;ev&#283; a t&#237;m pom&#225;haj&#237; sn&#237;&#382;it hladinu LDL cholesterolu.</p></li><li><p>D&#225;vkov&#225;n&#237;: 1-3 g denn&#283;, v&#283;t&#353;inou prost&#345;ednictv&#237;m speci&#225;ln&#237;ch margar&#237;n&#367; nebo dopl&#328;k&#367;.</p></li></ul><p>8. <strong>&#268;erven&#225; fermentovan&#225; r&#253;&#382;e</strong></p><ul><li><p>&#218;&#269;inky: Obsahuje l&#225;tku monakolin K, kter&#225; m&#225; obdobn&#253; &#250;&#269;inek a strukturu jako statiny a m&#367;&#382;e pomoci sn&#237;&#382;it hladinu LDL cholesterolu.</p></li><li><p>D&#225;vkov&#225;n&#237;: 1200&#8211;2400 mg denn&#283;, rozd&#283;len&#233; do dvou d&#225;vek.</p></li></ul><p>9. Curcumin (kurkuma)</p><ul><li><p>&#218;&#269;inky: Curcumin, aktivn&#237; slo&#382;ka kurkumy, m&#225; protiz&#225;n&#283;tliv&#233; a antioxida&#269;n&#237; &#250;&#269;inky a pom&#225;h&#225; sni&#382;ovat LDL cholesterol.</p></li><li><p>D&#225;vkov&#225;n&#237;: 500&#8211;1000 mg denn&#283;, s j&#237;dlem obsahuj&#237;c&#237;m tuk, aby se zlep&#353;ila absorpce.</p></li></ul><p>10. Artichoke Leaf Extract (Extrakt z arty&#269;okov&#253;ch list&#367;)</p><ul><li><p>&#218;&#269;inky: Extrakt z arty&#269;oku podporuje metabolismus lipid&#367; a m&#367;&#382;e sni&#382;ovat LDL cholesterol.</p></li><li><p>D&#225;vkov&#225;n&#237;: 320&#8211;640 mg denn&#283;, rozd&#283;len&#233; do dvou d&#225;vek.</p></li></ul><p><strong>Vliv konzumace frukt&#243;zy a cukr&#367; na hladinu cholesterolu</strong></p><p><strong>Frukt&#243;za</strong> a nadm&#283;rn&#253; p&#345;&#237;jem <strong>p&#345;idan&#253;ch cukr&#367;</strong> mohou negativn&#283; ovlivnit hladinu cholesterolu a lipidov&#253; profil v t&#283;le.</p><p><strong>1. Vliv frukt&#243;zy na cholesterol</strong></p><ul><li><p><strong>Zv&#253;&#353;en&#233; riziko triglycerid&#367; a LDL cholesterolu:</strong> <strong>Vysok&#253; p&#345;&#237;jem frukt&#243;zy z p&#345;idan&#253;ch cukr&#367; (nap&#345;. z cukrovinek, slazen&#253;ch n&#225;poj&#367; nebo pr&#367;myslov&#283; zpracovan&#253;ch potravin) je spojen se zv&#253;&#353;en&#237;m triglycerid&#367;.</strong></p></li><li><p><strong>Stimulace jater: Frukt&#243;za se metabolizuje v j&#225;trech, kde se p&#345;em&#283;&#328;uje na tuky (de novo lipogeneze). Tento proces m&#367;&#382;e v&#233;st ke zv&#253;&#353;en&#237; tvorby LDL cholesterolu a zhor&#353;en&#237; lipidov&#233;ho profilu a v dlouhodob&#233; perspektiv&#283; k metabolick&#253;m chorob&#225;m - zejm&#233;na ztu&#269;n&#283;n&#237; jater.</strong></p></li><li><p><strong>Vliv na inzul&#237;novou rezistenci: Nadm&#283;rn&#253; p&#345;&#237;jem frukt&#243;zy m&#367;&#382;e p&#345;isp&#283;t k inzul&#237;nov&#233; rezistenci, co&#382; n&#225;sledn&#283; vede ke zv&#253;&#353;en&#253;m hladin&#225;m cholesterolu a tuk&#367; v krvi.</strong></p></li></ul><p><strong>Doporu&#269;en&#237;</strong></p><ul><li><p><strong>Omezte p&#345;&#237;jem p&#345;idan&#253;ch cukr&#367;:</strong>  na m&#233;n&#283; ne&#382; 5 % celkov&#233;ho denn&#237;ho p&#345;&#237;jmu energie, co&#382; odpov&#237;d&#225; p&#345;ibli&#382;n&#283; 25 g cukru denn&#283; (podle energetick&#233; pot&#345;eby).</p></li><li><p><strong>D&#225;vejte p&#345;ednost p&#345;&#237;rodn&#237;m cukr&#367;m:</strong> Ovoce je lep&#353;&#237; zdroj frukt&#243;zy ne&#382; pr&#367;myslov&#283; zpracovan&#233; potraviny, proto&#382;e obsahuje vl&#225;kninu, vitam&#237;ny a antioxidanty, kter&#233; zm&#237;r&#328;uj&#237; negativn&#237; dopady na hladinu cholesterolu.</p><div><hr></div></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Lda8!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 424w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 848w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Lda8!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png" width="1210" height="662" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:662,&quot;width&quot;:1210,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1101611,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/193148764?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 424w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 848w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Lda8!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F4f706d5c-b527-4319-95fb-9b72bf3ea219_1210x662.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>M&#367;j lipidov&#253; profil je dle m&#283;&#345;en&#237; z 26.3.2026 n&#225;sleduj&#237;c&#237;:</p><p>Celkov&#253; cholesterol: 4.10 mmol/L</p><p>HDL cholesterol: 1.71 mmol/L</p><p>LDL cholesterol: 2.06 mmol/L</p><p>Triacylglyceroly: 0.40 mmol/L</p><p>Lp(a): 8.30 mmol/L</p><p>ApoB (v&#253;p.): 0.6 g/L</p><p>NON HDL cholesterol (v&#253;p.): 2.39 mmol/L</p><p><strong><a href="https://www.longevity-tools.com/calculation/RW-ApoB#S-TAG=0.4_mmol~L&amp;S-Lp-a=8.3_mg~dL&amp;S-ApoB=0.6_g~L">RW-apoB: 52.7</a> mg/dL</strong></p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Zdroje: </p><p>Michaela B Rehman, Elias Bj&#246;rnson, Martin Adiels, Jakub Morze, G&#246;ran Bergstr&#246;m, Anders Gummesson, David Erlinge, Tove Fall, Ljubica Matic, Stefan S&#246;derberg, Carl Johan &#214;stgren, Chris J Packard, Jan Bor&#233;n, Risk-weighted apoB: a novel summary metric outperforming traditional lipid biomarkers in predicting coronary heart disease, <em>European Heart Journal</em>, 2026;, ehaf1124, <a href="https://doi.org/10.1093/eurheartj/ehaf1124">https://doi.org/10.1093/eurheartj/ehaf1124</a></p><p><a href="https://www.youtube.com/watch?v=i9TL2mrFEEY">Predicting Heart Disease Risk With ApoB, LP(a), and VLDL</a></p>]]></content:encoded></item><item><title><![CDATA[Ketosis Suppression, Insulin and Ageing: The Impact on SHBG, Endocrine Hormones and Cancer ]]></title><description><![CDATA[Additional results from KetoSAge study]]></description><link>https://zdeneksipek.substack.com/p/ketosis-suppression-insulin-and-ageing</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/ketosis-suppression-insulin-and-ageing</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Mon, 02 Mar 2026 14:57:25 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/d4235bd9-a212-4eac-9885-b6e9cabe6284_1024x1024.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><strong>Executive Summary of the KetoSAge Study</strong></p><p>The KetoSAge study investigates the complex interplay between metabolic signals&#8212;specifically insulin and ketones&#8212;and female reproductive health. While ketogenic diets have established efficacy in reversing insulin resistance and improving metabolic health, the specific impact of suppressing ketosis (inducing hypoketonaemia) on hormonal biomarkers in healthy, lean women has previously remained poorly understood.</p><p>The study highlights <strong>Sex Hormone-Binding Globulin (SHBG)</strong> as a primary, sensitive biomarker of metabolic-endocrine status. <strong>Findings demonstrate that even in healthy, lean women, the suppression of ketosis via increased carbohydrate intake leads to a significant reduction in SHBG, a marker strongly associated with increased risk for metabolic syndrome, type 2 diabetes (T2DM), and various cancers.</strong></p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>Study Methodology and Participant Characteristics</strong></p><p>The investigation utilized an open-labelled, non-randomized crossover trial design consisting of three distinct 21-day phases.</p><p><strong>Participant Profile</strong></p><ul><li><p><strong>Cohort:</strong> 10 lean, healthy, premenopausal women.</p></li><li><p><strong>Mean Age:</strong> 32.30 &#177; 8.97 years.</p></li><li><p><strong>Mean BMI:</strong> 20.52 kg/m&#178; &#177; 1.39.</p></li><li><p><strong>Baseline Status:</strong> Participants had maintained nutritional ketosis (NK) for an average of 3.9 &#177; 2.3 years prior to the study.</p></li></ul><p><strong>Intervention Phases</strong></p><ol><li><p><strong>Phase 1 (P1 - Baseline):</strong> 21 days of baseline data collection in euketonaemia (BHB &#8805; 0.5 mmol/L).</p></li><li><p><strong>Phase 2 (P2 - Suppression):</strong> 21 days of suppressed ketosis (SuK) and hypoketonaemia (BHB &lt; 0.5 mmol/L) induced by following UK Eatwell Guidelines (consuming approximately 267g of carbohydrate per day).</p></li><li><p><strong>Phase 3 (P3 - Return):</strong> 21 days of returning to the participants&#8217; habitual nutritional ketosis lifestyle.</p></li></ol><p><strong>Key Findings: SHBG and Metabolic Correlations</strong></p><p><strong>The primary outcome of the study was the dramatic and reversible change in SHBG levels based on ketotic state.</strong></p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Ib5e!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Ib5e!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png" width="1456" height="813" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/b42979b1-664b-4607-aed0-facee38496b4_2752x1536.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:813,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:6195322,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/189536274?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Ib5e!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb42979b1-664b-4607-aed0-facee38496b4_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>SHBG Dynamics</strong></p><p>Suppression of ketosis (P2) resulted in a <strong>significant 0.67-fold decrease</strong> in SHBG levels (<em>p</em>=0.0015).</p><ul><li><p><strong>Phase 1 (NK):</strong> 107.70 &#177; 49.74 nmol/L</p></li><li><p><strong>Phase 2 (SuK):</strong> 72.53 &#177; 35.43 nmol/L</p></li><li><p><strong>Phase 3 (Return to NK):</strong> 111.60 &#177; 53.29 nmol/L</p></li></ul><p>This return to baseline in Phase 3 confirms the metabolic responsiveness of SHBG to insulin-ketone dynamics.</p><p><strong>Statistical Associations with SHBG</strong></p><p>Linear mixed-effects modeling revealed that SHBG levels are inextricably linked to various metabolic and inflammatory markers.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!c_0h!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 424w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 848w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 1272w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!c_0h!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png" width="415" height="378" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:378,&quot;width&quot;:415,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:44474,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/189536274?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 424w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 848w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 1272w, /__u/substackcdn.com/image/fetch/$s_!c_0h!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F3867576c-1085-43a3-bdad-0b8a51d026d2_415x378.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Reproductive Hormone Resilience</strong></p><p>Despite the significant changes in SHBG, other primary sex hormones did not show statistically significant changes across the three study phases. This suggests an &#8220;apparent hormonal resilience&#8221; of the reproductive axis in healthy women during short-term metabolic shifts. However, <strong>Follicle-Stimulating Hormone (FSH)</strong> levels were significantly predicted by the menstrual cycle phase, being higher during ovulation than the follicular phase (<em>p</em>=0.0097).</p><p><strong>Diagnostic Paradigms: ICE and PIT</strong></p><p><strong>The study argues that current standards of care (SOC) for metabolic health are insufficient, often missing early markers of disease.</strong></p><p><strong>Insulin-Compensated Euglycaemia (ICE)</strong></p><p>ICE describes a hidden state of metabolic pathology where a patient displays &#8220;normal&#8221; fasting glucose and HbA1c levels. However, these normal levels are achieved through <strong>compensatory hyperinsulinaemia</strong>.</p><ul><li><p>In this state, <strong>persistent insulin signaling drives glucose into tissues at an accelerated rate, masking underlying dysfunction.</strong></p></li><li><p>The clinical signature of ICE is <strong>hypoketonaemia</strong> (chronic suppression of BHB), even when glucose appears stable.</p></li></ul><p><strong>Personalised Hyperinsulinaemia Threshold (PIT)</strong></p><p>The PIT reframes the detection of insulin excess by moving away from population-based reference ranges to individual metabolic capacity.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Q4Af!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 424w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 848w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Q4Af!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png" width="683" height="310" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/d02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:310,&quot;width&quot;:683,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:48978,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/189536274?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 424w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 848w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Q4Af!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fd02f3d58-bca2-4dec-b9ff-289444aab072_683x310.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Detection Strategy</strong></p><p>To overcome diagnostic &#8220;blind spots,&#8221; the study recommends:</p><ul><li><p><strong>Sequential monitoring of capillary glucose and BHB over seven consecutive evenings (pre-dinner or bedtime, at least 3 hours post-prandially).</strong></p></li><li><p><strong>Assessing markers beyond glucose: GGT, leptin, HOMA-IR, IGF-1, and SHBG to capture the vascular and endocrine stress of insulin excess.</strong></p></li></ul><p><strong>Mechanistic Links to Cancer Risk and Therapy</strong></p><p>A central argument of the KetoSAge research is that <strong>SHBG is</strong> not merely a transport protein but <strong>a critical regulator of oncogenic signaling.</strong></p><p><strong>The SHBG-c-Myc-Bcl-2 Axis</strong></p><p>Low SHBG levels, typically seen in hyperinsulinaemic and hypoketonaemic states, trigger a cascade that promotes cancer cell survival and proliferation:</p><ul><li><p><strong>c-Myc Upregulation:</strong> Low SHBG increases the expression of the proto-oncogene c-Myc.</p></li><li><p><strong>Metabolic Reprogramming:</strong> c-Myc upregulates <strong>GLUT1</strong> (insulin-independent glucose uptake) and glycolytic enzymes like <strong>Lactate Dehydrogenase (LDH)</strong> and <strong>Hexokinase 2 (HK2)</strong>.</p></li><li><p><strong>The Warburg Effect:</strong> This drives aerobic fermentation, allowing cancer cells to synthesize ATP independently of mitochondrial oxidative phosphorylation.</p></li><li><p><strong>Apoptosis Resistance:</strong> Chronic hyperinsulinaemia and low SHBG increase <strong>Bcl-2</strong> levels. Bcl-2 prevents mitochondrial membrane permeabilization (MOMP), inhibiting the release of cytochrome c and effectively blocking the initiation of programmed cell death (apoptosis).</p></li></ul><p><strong>The Role of HK2</strong></p><p>HK2 binds directly to the outer mitochondrial membrane, utilizing mitochondrial ATP to phosphorylate glucose. This &#8220;stygian link&#8221; acceleration of glycolytic flux insulates cancer cells from ATP depletion and reinforces the aggressive, proliferative Warburg phenotype.</p><p><strong>Leptin as a Mitokine</strong></p><p><strong>Leptin, which rose significantly during the suppression of ketosis (P2)</strong>, acts as a pro-tumorigenic cytokine:</p><ul><li><p><strong>Angiogenesis:</strong> Leptin synergizes with <strong>VEGF</strong> to increase vascular permeability and promote the formation of new blood vessels (neovascularization), essential for tumor expansion.</p></li><li><p><strong>Signaling Cascades:</strong> It activates PI3K&#8211;Akt and JAK2&#8211;STAT3 pathways, which inhibit mitochondrial apoptotic checkpoints.</p></li><li><p><strong>Glioblastoma (GBM):</strong> In malignant brain tumors, leptin and its receptor (ObR) are overexpressed and correlate with the degree of malignancy. GBM cells can even produce leptin autocrinally, creating a self-sustaining survival loop.</p></li></ul><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!5aex!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!5aex!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png" width="1456" height="813" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:813,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:6320695,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/189536274?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!5aex!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F09ccdb32-e00e-4be9-ac84-0b79fc4f243b_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Therapeutic Implications: Ketogenic Metabolic Therapy (KMT)</strong></p><p>The study supports the rationale for KMT as a metabolic intervention for cancer and reproductive disorders (like PCOS).</p><ul><li><p><strong>Restoring Endocrine Balance:</strong> KMT raises SHBG levels and improves leptin sensitivity by reducing basal insulin.</p></li><li><p><strong>Metabolic Re-sensitization:</strong> By inducing euketonaemia, KMT may re-sensitize tumor cells to apoptotic initiation by downregulating c-Myc and Bcl-2.</p></li><li><p><strong>Adjunct to Standard of Care (SOC):</strong> <strong>Correction of hyperinsulinaemia restricts the fuel supply to tumors, potentially improving the efficacy of chemotherapy, immunotherapy, and radiotherapy</strong>.</p></li></ul><p><strong>Conclusion</strong></p><p>The KetoSAge study provides evidence that SHBG is a pivotal indicator of metabolic and endocrine health. Chronic hypoketonaemia, induced by standard dietary carbohydrate loads, suppresses SHBG and elevates leptin and insulin, creating a metabolic environment conducive to the development of oestrogen-dominant and hormone-sensitive cancers.</p><p>The proposal of the <strong>Personalised Hyperinsulinaemia Threshold (PIT)</strong> and the recognition of <strong>Insulin-Compensated Euglycaemia (ICE)</strong> offer clinicians a more sensitive framework for detecting subclinical metabolic dysfunction. Early intervention via nutritional ketosis can reverse these trends, restoring SHBG levels and re-establishing hepatic metabolic control before irreversible pathology develops.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Source:</p><p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC12829335/">Cooper ID, Petagine L, Soto-Mota A, Duraj T, Seyfried TN, Lee DC, Cooper N, Kyriakidou Y. Ketosis suppression and ageing (KetoSAge): the effect of suppressing ketosis on SHBG and sex hormone profiles in healthy premenopausal women, and its implications for cancer risk and therapy. Front Nutr. 2026 Jan 2;12:1731915. doi: 10.3389/fnut.2025.1731915. PMID: 41586225; PMCID: PMC12829335.</a></p>]]></content:encoded></item><item><title><![CDATA[Decoding Biological Age: A New Blood Test-Based Method for Predicting Health and Longevity]]></title><description><![CDATA[Bortz Blood Age]]></description><link>https://zdeneksipek.substack.com/p/decoding-biological-age-a-new-blood</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/decoding-biological-age-a-new-blood</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sat, 31 Jan 2026 15:02:26 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!WjyX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!WjyX!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 424w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 848w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 1272w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!WjyX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png" width="1294" height="682" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:682,&quot;width&quot;:1294,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1037164,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/186289111?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 424w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 848w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 1272w, /__u/substackcdn.com/image/fetch/$s_!WjyX!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1db0cd07-1289-44fe-8c58-a7d2764abb26_1294x682.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Introduction: Beyond Chronological Age</strong></p><p>Chronological age, the number of years since birth, is an imperfect measure of an individual&#8217;s health and physiological function. While it serves as a general guide, it fails to capture the vast differences in how people age. A more precise concept is &#8220;biological age,&#8221; which reflects the underlying molecular and cellular deterioration that drives the aging process. This summary breaks down a recent, large-scale study that developed a highly accurate, practical, and cost-effective method for estimating biological age using a panel of common blood biomarkers. This new method has significant implications for predicting future health outcomes, identifying at-risk individuals, and evaluating the effectiveness of anti-aging interventions.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>1. The Research Objective: Building a Better Biological Clock</strong></p><p>The research was founded on the UK Biobank (UKBB) dataset, a large-scale biomedical database. The study analyzed data from <strong>306,116 participants</strong> with follow-up health information spanning up to <strong>14 years</strong>. This massive dataset provided the statistical power necessary to build and validate a highly robust predictive model. The researchers set a clear goal: to create a new model that could outperform the established &#8220;PhenoAge&#8221; model, a well-regarded benchmark in the field. To achieve this, they employed advanced statistical models to analyze the extensive biomarker and mortality data.</p><p><strong>2. The New Model: Superior Predictive Performance</strong></p><p>The primary goal of any biological age model is to accurately predict an individual&#8217;s mortality risk, which serves as the ultimate proxy for biological decline. The researchers developed a new model, referred to as the <strong>Full Elastic-Net Cox (ENC)</strong> model, a sophisticated statistical method designed to identify the most predictive biomarkers from a large pool of data and use them to forecast health outcomes.</p><p>When compared against existing methods on the same dataset, the new model demonstrated a clear and significant advantage in predictive accuracy.</p><p>&#8226; <strong>The New ENC Model:</strong> Achieved a performance score (C-Index) of <strong>0.7775</strong>.</p><p>&#8226; <strong>The Established PhenoAge Model:</strong> Scored <strong>0.7499</strong> on the same data.</p><p>&#8226; <strong>A Basic Model (Age &amp; Sex only):</strong> Scored <strong>0.7262</strong>.</p><p>The C-Index is a measure of predictive accuracy, where a score of 0.5 represents random chance and 1.0 signifies a perfect prediction. The new model&#8217;s score represents a significant <strong>11% relative increase in predictive value</strong> over the highly respected PhenoAge model, confirming its superior performance.</p><p>Furthermore, the study rigorously tested the model&#8217;s robustness. Analysis of performance across different health subgroups revealed a critical insight: the ENC model&#8217;s predictive uplift was far greater for individuals with a pre-existing long-standing illness (the &#8220;Sick&#8221; group), where it showed a <strong>39% increase in predictive value</strong> over the basic model, compared to an <strong>11% increase</strong> for the &#8220;Healthy&#8221; group. This demonstrates that the model is exceptionally powerful at stratifying risk precisely within the populations that need it most. It also maintained its predictive power across the socioeconomic spectrum. This superior performance is driven by the specific set of key biomarkers the model identified as most important.</p><p><strong>3. The Key Biomarkers: What&#8217;s Driving the Prediction?</strong></p><p>Understanding which specific biomarkers are the most influential in predicting biological age provides crucial insight into the underlying biological processes of aging. The machine learning process analyzed an initial pool of 57 biomarkers and automatically selected the <strong>25 most stable and predictive markers</strong> for inclusion in the final model.</p><p>Based on the analysis, the most influential predictors were:</p><p>&#8226; <strong>Age and Sex:</strong> These remain the most powerful foundational predictors of mortality.</p><p>&#8226; <strong>Cystatin C:</strong> Identified as the single most important <em>blood biomarker</em>. Its impact was profound: a one standard deviation increase in cystatin C was associated with a <strong>31% increase in mortality hazard</strong>.</p><p>&#8226; <strong>Red Blood Cell Distribution Width:</strong> This was another marker identified as having a very strong effect on increasing mortality hazard.</p><p>&#8226; <strong>Protective Markers:</strong> Conversely, higher levels of certain markers&#8212;including <em>creatinine</em>, <em>alanine aminotransferase</em>, and <em>vitamin D</em>&#8212;were associated with a <em>lower</em> mortality hazard. &#8220;Protective&#8221; in this context means higher levels were linked to better survival outcomes, directly contrasting with risk markers like cystatin C.</p><p>A comparison with the PhenoAge model revealed a remarkable similarity in the effects of biomarkers shared between the two models, a finding that validates the results across two large, independent cohorts (UKBB and NHANES). A key difference emerged with <em>creatinine</em>. While it has a slightly negative association with health in the PhenoAge model, it appears protective in the new ENC model. The study explains this is not a contradiction but a result of the ENC model&#8217;s inclusion of the more powerful, co-varying marker <em>cystatin C</em>. The source suggests that &#8220;increased creatinine in the presence of unchanged cystatin C may be desirable.&#8221; This crucial distinction highlights how the interaction between biomarkers provides a more refined predictive signal. While the full panel of 25 biomarkers provides the best results, the study found the model remains highly effective even with incomplete data.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!GGbQ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 424w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 848w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 1272w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!GGbQ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png" width="724" height="1297.3324175824175" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:2609,&quot;width&quot;:1456,&quot;resizeWidth&quot;:724,&quot;bytes&quot;:5505060,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/186289111?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 424w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 848w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 1272w, /__u/substackcdn.com/image/fetch/$s_!GGbQ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F059c788e-8ff8-4f03-94a1-8f25816789e9_1536x2752.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>4. Real-World Application: Practicality and Cost-Effectiveness</strong></p><p>For a biological age model to have a real-world impact, it must be practical and accessible. The critical question researchers sought to answer was: How can this model be used when individuals often have incomplete blood test results from various routine clinical visits?</p><p>To address this, the researchers simulated real-world scenarios by testing the model&#8217;s performance using only the biomarkers available in 10 common clinical blood panels, such as a Cholesterol Panel or a Liver Function Panel. When the missing biomarkers were &#8220;imputed&#8221; (a statistical method for estimating missing data based on the available information), the Full ENC model&#8217;s predictive accuracy was <strong>not substantially degraded</strong>. As detailed in the study, the average reduction in the C-Index score across all panels was a negligible 0.008. In other words, the model&#8217;s predictive power was nearly identical whether it used a complete dataset or an incomplete, imputed one from a common clinical panel, proving its real-world utility.</p><p>This finding is highly significant. It demonstrates a practical, accurate, and cost-efficient method for estimating biological age that can be applied to pre-existing blood test results from routine doctor visits. This makes the tool accessible to the general population without requiring new, expensive, or comprehensive testing, thereby removing a major barrier to widespread adoption. This practical predictive power enables the model to generate its ultimate output: a quantifiable measure of an individual&#8217;s age acceleration.</p><p><strong>5. The Outcome: Quantifying &#8220;Biological Age Acceleration&#8221;</strong></p><p>The model&#8217;s final output is a metric called &#8220;Biological Age Acceleration&#8221; (BAA), which is defined as the difference between an individual&#8217;s estimated biological age and their actual chronological age. A positive BAA indicates accelerated aging, while a negative value suggests an individual is biologically younger than their years.</p><p>The study found a wide distribution of BAA values within the population, ranging from individuals who were <strong>20 years biologically younger</strong> to those who were <strong>20 years biologically older</strong> than their chronological age. This range is substantially wider than that observed in previous research (which reported a range of -3 to 6 years), an improvement the authors attribute to the &#8220;additional sensitivity introduced in our model due to the inclusion of 17 additional circulating biomarkers.&#8221; The profound impact of this metric on health outcomes was illustrated using survival curves, which led to a powerful conclusion:</p><p>Individuals in the youngest age group (<strong>Ages [40-50]</strong>) who were in the top quintile for BAA (most accelerated aging) had a <em>higher mortality rate</em> over the 14-year follow-up than individuals in the next oldest age group (50-65) who were in the bottom quintile for BAA (slowest aging).</p><p>This remarkable finding proves that BAA is a powerful indicator of health risk that captures critical information far beyond what chronological age alone can provide. It effectively identifies individuals at higher risk, even within younger and seemingly healthy populations, offering a window for early intervention. These powerful findings open up new possibilities for preventative health, though they should be considered within the context of the study&#8217;s limitations.</p><p><strong>6. Conclusion and Future Implications</strong></p><p>This research successfully developed a biological age predictor that is not only more accurate and robust than existing methods but is also designed for practical, real-world application using existing clinical data. The study&#8217;s findings have several key implications for the future of healthcare and longevity science.</p><p>1. <strong>Early Risk Identification:</strong> The model offers a practical tool for identifying individuals with accelerated biological aging long before the clinical onset of disease, enabling proactive and personalized preventative strategies.</p><p>2. <strong>Evaluating Interventions:</strong> It provides a quantifiable metric to assess the effectiveness of lifestyle changes, dietary shifts, or medical treatments aimed at slowing the aging process and improving long-term health.</p><p>3. <strong>Maximizing Healthspan:</strong> By making biological age estimation accessible and affordable, this tool can empower both individuals and healthcare providers to better manage long-term health and wellness.</p><p>It is important to acknowledge the study&#8217;s limitations. The UK Biobank dataset has a documented &#8220;healthy volunteer&#8221; bias and is not ethnically diverse (95% of participants were white). However, the authors provide a key counterpoint: the model&#8217;s findings were consistent across socioeconomic groups, which &#8220;suggests that our findings are consistent across both more and less deprived groups and thus likely to be similar in a fully representative sample.&#8221; Nonetheless, further research is necessary to validate and calibrate the model across different global populations.</p><p>Despite these limitations, this work represents a significant step forward. In an era of rapidly aging global populations, tools that can practically and accurately measure the aging process are essential for maximizing healthspan and building a more sustainable healthcare future.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Source: </p><p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10603148/">Bortz J, Guariglia A, Klaric L, Tang D, Ward P, Geer M, Chadeau-Hyam M, Vuckovic D, Joshi PK. Biological age estimation using circulating blood biomarkers. Commun Biol. 2023 Oct 26;6(1):1089. doi: 10.1038/s42003-023-05456-z. PMID: 37884697; PMCID: PMC10603148.</a></p>]]></content:encoded></item><item><title><![CDATA[Aging as a Primitive Pathogen Control Strategy]]></title><description><![CDATA[A Critical Review of Evolutionary Aging Hypotheses and the Pathogen Control Framework]]></description><link>https://zdeneksipek.substack.com/p/aging-as-a-primitive-pathogen-control</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/aging-as-a-primitive-pathogen-control</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 28 Dec 2025 09:19:31 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!bbuZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!bbuZ!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 424w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 848w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 1272w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!bbuZ!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png" width="1301" height="701" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:701,&quot;width&quot;:1301,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:1483383,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/182567272?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 424w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 848w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 1272w, /__u/substackcdn.com/image/fetch/$s_!bbuZ!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F98aa629d-e3d6-4ace-a30a-c9ea60e431cf_1301x701.png 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><blockquote><p><em>"<strong>Nothing in Biology Makes Sense Except in the Light of Evolution</strong>"</em></p></blockquote><p><strong>Executive Summary</strong></p><p>This document synthesizes a comprehensive review of the evolutionary theories of aging, culminating in an in-depth analysis of the novel &#8220;pathogen control hypothesis.&#8221; The central argument presented is that classical theories of aging&#8212;including entropic (damage accumulation), neutral (selection shadow), and side-effect (antagonistic pleiotropy, disposable soma) hypotheses&#8212;are fraught with contradictions and fail to align with a wide range of empirical data from modern genetics, ecology, and biochemistry.</p><p>In contrast, the pathogen control hypothesis posits that senescence is not an inevitable entropic process or a detrimental side effect, but rather a sophisticated, evolutionarily stable adaptation. Specifically, it proposes that a limited lifespan functions as a primitive immune strategy to protect an individual&#8217;s kin from the spread of chronic, sterilizing infectious diseases. By removing older, more heavily parasitized individuals from a population, aging reduces pathogen prevalence, limits the evolutionary window for zoonotic pathogens to adapt, and helps clear infections during population bottlenecks.</p><p>This framework successfully explains numerous biological phenomena that challenge classical theories, including the extreme longevity of eusocial species like the naked mole-rat, the life-extending effects of caloric restriction, the variability of lifespan in developmental isoforms (e.g., monarch butterflies), and the conspicuous absence of &#8220;immortal&#8221; escape mutants in nature. The hypothesis provides a mechanism for the selection of shorter lifespans based on kin selection in viscous populations and offers a compelling, testable alternative to the prevailing paradigms in geroscience.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>1. Introduction: The Evolutionary Paradox of Aging</strong></p><p>Aging, broadly defined as an age-dependent increase in mortality, presents a significant evolutionary paradox. While traditional views once considered senescence a predetermined, universal feature, the Darwinian era prompted rational inquiry into its origins. Early concepts, such as August Weismann&#8217;s 1881 proposal that <strong>aging</strong> is <strong>an adaptation to clear injured individuals</strong>, were dismissed as<strong> group selection argument</strong>s. This gave rise to a series of classical hypotheses that have dominated geroscience for decades, yet none fully accounts for the vast body of accumulated biochemical and ecological data.</p><p>This overview examines these classical hypotheses, highlights their inconsistencies, and presents a detailed analysis of an alternative framework: the pathogen control hypothesis. This novel theory reframes aging as a powerful adaptive strategy, providing a more parsimonious and comprehensive explanation for why organisms age.</p><p><strong>2. A Critical Evaluation of Classical Aging Hypotheses</strong></p><p>The primary evolutionary hypotheses for aging can be categorized as <strong>entropic</strong>, n<strong>eutral</strong>, or <strong>resulting from adverse side effects of beneficial traits</strong> (&#8221;pay later&#8221; theories). A critical review reveals significant limitations in each.</p><p><strong>2.1. Entropic Hypotheses: Inevitable Decay</strong></p><p>Entropic hypotheses posit that <strong>senescence is an unavoidable consequence of fundamental biological processes</strong>. These include:</p><p>&#8226; <strong>Molecular Damage:</strong> Accumulation of oxidative damage (Harman&#8217;s free radical hypothesis), glycation, somatic mutations, and DNA damage.</p><p>&#8226; <strong>System Deterioration:</strong> Error-prone transcription/translation leading to a &#8220;positive feedback loop of deterioration&#8221; (Orgel&#8217;s error catastrophe), or the inability of complex systems to maintain homeostasis.</p><p>&#8226; <strong>Selfish Evolution:</strong> Intracellular competition favoring cancer cells (Nelson and Masel), or the proliferation of selfish mitochondria or transposons.</p><p><strong>Critique:</strong> While these processes are relevant to the mechanics of senescence, they fail as primary evolutionary drivers. Their primary weakness is an inability to explain the vast and specific variability in lifespan across different species. This is illustrated by the <strong>&#8220;squirrel test&#8221;</strong>: tree squirrels live 1.5-2 times longer than genetically related and morphologically similar ground squirrels. Entropic hypotheses cannot adequately explain why ground squirrels could not evolve the same superior maintenance and anti-cancer mechanisms present in their longer-lived relatives.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!cZ9G!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!cZ9G!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!cZ9G!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F7c31e7ae-885b-48f0-a74c-28f5f3cbcdb3_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>2.2. Neutral Aging: The Selection Shadow Hypothesis</strong></p><p>Proposed by Peter Medawar and influenced by J.B.S. Haldane, this theory states that the power of natural selection diminishes with age due to extrinsic mortality (e.g., predation, hunger).</p><p>&#8226; <strong>Core Idea:</strong> Because few individuals survive to old age in the wild, detrimental traits that manifest late in life (senescence) have little to no effect on overall fitness and are therefore invisible to selection.</p><p><strong>Critique:</strong> This hypothesis rests on the key assumption that animals in the wild do not reach the age of senescence.</p><p>&#8226; <strong>Empirical Contradiction:</strong> Data from multiple natural populations (mammals, birds, reptiles, etc.) show that individuals frequently survive to old age and exhibit senescence.</p><p>&#8226; <strong>Limited Applicability:</strong> While the theory finds support in cases of deterministic lifespan termination (e.g., seasonal killifish in ephemeral ponds), it fails for the more common scenario of probabilistic mortality, where the number of survivors is never zero.</p><p><strong>2.3. Antagonistic Pleiotropy: A &#8220;Pay Later&#8221; Strategy</strong></p><p>Developed by George C. Williams, this influential theory proposes that aging is favored by selection as a detrimental side effect of genes that are beneficial in early life.</p><p>&#8226; <strong>Core Idea:</strong> A gene that boosts fitness at a young age (e.g., promoting faster growth or higher fertility) will be selected for, even if it causes damaging effects later in life.</p><p><strong>Critique:</strong> This hypothesis suffers from both empirical and theoretical shortcomings.</p><p>&#8226; <strong>Failure of a Key Prediction:</strong> The theory predicts that low adult death rates should correlate with low rates of senescence. However, empirical data are ambiguous. While supported by a study on Virginia opossums, other studies on guppies and Daphnia show the opposite trend. Furthermore, long-lived animals like birds and bats often have lower annual survival rates than terrestrial mammals with comparable lifespans.</p><p>&#8226; <strong>Inconsistency with Modern Genetics:</strong> The theory implicitly assumes &#8220;rigid&#8221; pleiotropic connections that cannot be uncoupled by evolution. Modern genetics reveals that regulatory networks are highly plastic, and a negative late-life effect under selection should be suppressed by compensatory evolution.</p><p>&#8226; <strong>Pathogen Resistance Variant:</strong> A variation suggests that genes conferring pathogen resistance may have adverse effects on longevity (e.g., sickle cell anemia). This is also unconvincing, as many long-lived mutants show <em>higher</em> pathogen resistance, and aging mechanisms are highly conserved across taxa, unlike the variable symptoms of such genetic disorders.</p><p><strong>2.4. The Disposable Soma Theory: An Energy-Saving Strategy</strong></p><p>Proposed by Tom Kirkwood and Robin Holliday, this theory frames aging as a trade-off in resource allocation.</p><p>&#8226; <strong>Core Idea:</strong> Organisms have limited energy, which must be allocated to either reproduction or somatic maintenance. Evolution favors investment in reproduction at the expense of long-term maintenance, leading to an accumulation of damage and senescence.</p><p><strong>Critique:</strong> The disposable soma hypothesis is contradicted by several key observations.</p><p>&#8226; <strong>Contradiction with Caloric Restriction:</strong> The theory predicts that an abundance of resources should allow for investment in maintenance and extended longevity. However, the opposite is observed: caloric restriction (low resources) extends lifespan, while an <em>ad libitum</em> diet does not.</p><p>&#8226; <strong>Inconsistencies in Stable Populations:</strong> In populations with stable numbers and low extrinsic mortality (e.g., whales), it is not clear that producing new offspring is more energy-efficient than maintaining the parent&#8217;s body.</p><p>&#8226; <strong>Sex-Based Differences:</strong> In most mammalian species, females invest more energy in reproduction than males, yet they senesce at slower rates.</p><p>&#8226; <strong>Uncoupling of Fecundity and Longevity:</strong> Numerous studies show that the trade-off between fecundity and longevity can be uncoupled, both at the species and individual level.</p><p><strong>3. Adaptive Aging Hypotheses and the Pathogen Control Framework</strong></p><p>While historically dismissed, hypotheses viewing aging as an adaptation offer an alternative perspective. The central challenge for these theories is to identify a benefit to kin so robust that it outweighs the ultimate cost of an individual&#8217;s own life (fulfilling Hamilton&#8217;s rule: <em>r</em>b &gt; c).</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!w2xw!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!w2xw!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!w2xw!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fc54b56b9-8fa3-402c-92e9-8104c9737d9f_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>3.1. Evidence Supporting Adaptive Aging</strong></p><p>&#8226; <strong>Phenoptosis (Programmed Death):</strong> Unicellular organisms commit adaptive suicide when infected. Semelparous species, such as Pacific salmon, undergo rapid, programmed physiological collapse after reproduction that cannot be explained by simple exhaustion.</p><p>&#8226; <strong>Programmed Decline of Repair Systems:</strong> The activity of key molecular repair systems (DNA repair, autophagy, proteostasis) is transcriptionally downregulated with age. These systems can be reactivated by interventions, suggesting a programmed decline rather than a passive accumulation of damage.</p><p><strong>3.2. The Pathogen Control Hypothesis</strong></p><p>This novel hypothesis proposes that <strong>aging is an adaptive strategy to control epidemics of infectious diseases</strong>. It reframes senescence as a form of altruism that protects an individual&#8217;s kin.</p><p><strong>Core Principles:</strong></p><p>1. <strong>Higher Parasitic Load in Older Individuals:</strong> Older organisms have a higher probability of acquiring chronic infections over their lifetime.</p><p>2. <strong>Kin-Biased Transmission:</strong> In &#8220;viscous&#8221; populations with limited dispersal, pathogen transmission is more likely to occur between relatives.</p><p>3. <strong>Fitness Cost of Infection:</strong> Chronic pathogens often have strong negative effects on reproductive fitness, effectively sterilizing their hosts.</p><p><strong>How Aging Controls Pathogens:</strong></p><p>&#8226; <strong>Reduces Pathogen Prevalence:</strong> Programmed lifespan termination systematically removes older, more heavily infected individuals, reducing the overall pathogen load in the kin group.</p><p>&#8226; <strong>Prevents Zoonotic Adaptation:</strong> A shorter host lifespan limits the time window available for novel pathogens from other species to evolve better transmissibility.</p><p>&#8226; <strong>Facilitates Pathogen Clearance:</strong> During population bottlenecks, a shorter lifespan increases the probability that the last infected individuals will die before the population density recovers to levels permissive for an epidemic, potentially clearing the pathogen entirely.</p><p><strong>Evolutionary Stability and Key Predictions:</strong></p><p>&#8226; <strong>Kin Selection:</strong> The model does not require group selection. In viscous populations where benefits are directed toward relatives, a limited lifespan can be an evolutionarily stable strategy.</p><p>&#8226; <strong>Evolvability Suppressors:</strong> The model explains the absence of immortal mutants. The ability to produce a long-lived variant becomes a detrimental trait because the mutant lineage eventually becomes a high-prevalence reservoir for pathogens, leading to its collapse. This selects for &#8220;gatekeeping&#8221; mechanisms that stabilize lifespan, which manifest as the &#8220;pleiotropic&#8221; negative effects seen in life-extending mutations.</p><p>&#8226; <strong>Fulfillment of Hamilton&#8217;s Rule:</strong> The benefit (<em>b</em>) is the sum of protection afforded to all relatives from the devastating effects of an epidemic, which can readily exceed the cost (<em>c</em>) of the individual&#8217;s residual lifespan.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!YBCl!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!YBCl!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png" width="1456" height="813" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/f9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:813,&quot;width&quot;:1456,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:5775484,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/182567272?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!YBCl!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff9396520-a0c8-408b-ba7c-7a9d82878957_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>4. Explanatory Power Across Aging-Related Phenomena</strong></p><p>The pathogen control hypothesis provides a more parsimonious explanation for numerous observations that challenge classical theories.</p><p><strong>Universality &amp; Variability of Aging</strong></p><p>Pathogens are a universal selective force. Lifespan variability is explained by differences in population structure (viscosity) and pathogen composition across species.</p><p><strong>Immortality in Primitive Metazoans</strong></p><p>These organisms may lack a clear distinction between soma and germline, making it impossible to uncouple regeneration from reproduction. When forced into a sexual lifecycle (e.g., hydra under stress), they exhibit senescence.</p><p><strong>Absence of Immortal Mutants</strong></p><p>Explained by the selection for &#8220;evolvability suppressors.&#8221; The capacity to produce long-lived mutants is evolutionarily detrimental.</p><p><strong>Body Size &amp; Longevity</strong></p><p>A larger body requires more time to grow (an ecological trade-off). The inverse correlation in dog breeds and lab mutants is explained by the uncoupling of a physiological aging &#8220;timer&#8221; from its ecological niche.</p><p><strong>Caloric Restriction &amp; Hormesis</strong></p><p>Stressors like caloric restriction pause reproduction across the population, thereby pausing the pathogen-driven selection for a shorter lifespan. This makes a temporary lifespan extension adaptive, allowing the organism to survive and reproduce in more favorable conditions.</p><p><strong>Fecundity-Longevity Trade-off</strong></p><p>The trade-off is ecological, not physiological. A higher birth rate increases population pressure, favoring the evolution of a shorter lifespan to balance pathogen risks. This explains why the trade-off is strong between species but weak at the individual level.</p><p><strong>Flight &amp; Prolonged Lifespan</strong></p><p>Flight decreases population viscosity, leading to more promiscuous interactions. When the benefits of adaptive death cannot be specifically directed to kin, longer lifespans are favored. This also explains why tree squirrels live longer than ground squirrels.</p><p><strong>Variability in Developmental Isoforms</strong></p><p>Lifespan is a trade-off between epidemic penalties and ecological benefits. If a long lifespan is essential for a specific life stage (e.g., migration in monarch butterflies), it will be conditionally expressed, while the shorter lifespan is maintained in &#8220;normal&#8221; conditions where pathogens are a threat.</p><p><strong>Eusociality (Bees, Naked Mole-Rats)</strong></p><p><strong>Bees:</strong> Foragers have a short lifespan due to high pathogen exposure risk, protecting the hive. Nurses and the queen are sheltered and live longer. <strong>Naked Mole-Rats:</strong> Extreme longevity may be enabled by a strategy of adaptive suicide (phenoptosis). If infected workers are immediately killed, the colony can remain pathogen-free, making aging redundant.</p><p><strong>Semelparity</strong></p><p>This extreme form of aging is an adaptation to prevent the transgenerational transmission of pathogens, especially in environments like overcrowded spawning rivers for salmon.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!iF1w!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!iF1w!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!iF1w!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F40638ddb-c573-4f75-9642-5721729d5d11_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>5. Comparative Analysis of Hypotheses of Aging</strong></p><p>The following table summarizes the explanatory power of the major hypotheses against key aging-related observations.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!VT5q!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F363aee7a-41e3-43f5-aeb3-d3b0d96ef3d3_1143x635.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!VT5q!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F363aee7a-41e3-43f5-aeb3-d3b0d96ef3d3_1143x635.png 424w, 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8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>6. Future Directions and Conclusion</strong></p><p>The pathogen control hypothesis provides a robust and testable framework. Future research should focus on:</p><p>1. <strong>Interaction between Aging and Immunity:</strong> Testing whether the lifespan-shortening effects of chronic immune activation can be mechanistically uncoupled from the protective immune response.</p><p>2. <strong>Structure of Infectious Networks:</strong> Examining the correlation between population viscosity and lifespan in species with unusual social structures (e.g., bats, eusocial rodents).</p><p>3. <strong>Pathogen Abundance:</strong> Investigating whether species in pathogen-rich biotopes experience stronger selection for shorter lifespans and empirically evaluating the prevalence of sterilizing pathogens in the wild.</p><p>In conclusion, mainstream evolutionary hypotheses of aging are increasingly inconsistent with modern biological knowledge. The pathogen control hypothesis offers a more compelling and parsimonious alternative, reframing senescence as an evolutionary adaptation. This perspective has profound implications, suggesting a deep, mechanistic connection between aging and immunity and significantly altering the conceptual approach to the biology of aging.</p><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Sources:</p><p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC9839256/">Lidsky PV, Yuan J, Rulison JM, Andino-Pavlovsky R. Is Aging an Inevitable Characteristic of Organic Life or an Evolutionary Adaptation? Biochemistry (Mosc). 2022 Dec;87(12):1413-1445. doi: 10.1134/S0006297922120021. PMID: 36717438; PMCID: PMC9839256.</a></p>]]></content:encoded></item><item><title><![CDATA[An Average Biological Age Around 19 Years Younger ]]></title><description><![CDATA[My 2025 PhenoAge results]]></description><link>https://zdeneksipek.substack.com/p/an-average-biological-age-around</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/an-average-biological-age-around</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 14 Dec 2025 14:24:51 GMT</pubDate><enclosure url="https://substackcdn.com/image/fetch/$s_!S_Fb!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg" length="0" type="image/jpeg"/><content:encoded><![CDATA[<div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!S_Fb!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!S_Fb!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg" width="640" height="640" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/e9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:640,&quot;width&quot;:640,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:53509,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/jpeg&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:true,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/181588788?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 424w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 848w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 1272w, /__u/substackcdn.com/image/fetch/$s_!S_Fb!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fe9ce8ae2-da0b-40a9-96cf-3efc822b639d_640x640.jpeg 1456w" sizes="100vw" fetchpriority="high"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p>I&#180;m sharing my PhenoAge results from 2025. <br>The total cost of the testing was $160.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!QJOx!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 424w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 848w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 1272w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!QJOx!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png" width="735" height="494" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/dd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:494,&quot;width&quot;:735,&quot;resizeWidth&quot;:null,&quot;bytes&quot;:48263,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:false,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/181588788?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 424w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 848w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 1272w, /__u/substackcdn.com/image/fetch/$s_!QJOx!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd256449-3eae-4d63-9f44-f1f9069f3254_735x494.png 1456w" sizes="100vw"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p></p>]]></content:encoded></item><item><title><![CDATA[Muscle Power and Neuromuscular Integrity: Key Determinants of Longevity]]></title><description><![CDATA[Why Muscle Power Trumps Strength]]></description><link>https://zdeneksipek.substack.com/p/muscle-power-and-neuromuscular-integrity</link><guid isPermaLink="false">https://zdeneksipek.substack.com/p/muscle-power-and-neuromuscular-integrity</guid><dc:creator><![CDATA[Zdeněk Šípek]]></dc:creator><pubDate>Sun, 07 Dec 2025 10:13:17 GMT</pubDate><enclosure url="https://substack-post-media.s3.amazonaws.com/public/images/facf1737-bfb0-4a59-a9f5-b978648e71ac_474x355.png" length="0" type="image/jpeg"/><content:encoded><![CDATA[<p><strong>Executive Summary</strong></p><p>A comprehensive analysis of recent research reveals that muscle power&#8212;the ability to generate force quickly&#8212;is a significantly stronger predictor of all-cause mortality in middle-aged and older adults than maximal muscle strength. Findings from the large, prospective CLINIMEX Exercise cohort study indicate that <strong>individuals with the lowest muscle power have a mortality risk 5.88 times higher for men and 6.90 times higher for women compared to those with the highest power</strong>. This starkly contrasts with the predictive value of muscle strength, which showed a much weaker association with mortality.</p><p>This functional decline is rooted in the underlying biology of aging, which is characterized by a progressive deterioration of the neuromuscular system. <strong>Age-related muscle loss, or sarcopenia, appears to be not merely an intrinsic muscle-wasting process but a secondary consequence of significant neuronal impairment</strong>. This includes a continuous cycle of muscle fiber denervation and reinnervation that eventually results in a net loss of motor units, particularly the fast-twitch (Type II) fibers responsible for powerful movements. This neurological decay leads to measurable declines in muscle mass, preferential atrophy of power-generating fibers, and impaired coordination.</p><p>These insights mandate a paradigm shift in both clinical assessment and exercise prescription. The current diagnostic criteria for sarcopenia, which do not include muscle power, may fail to identify a critical component of functional decline. Clinicians should move toward integrating dynamic power assessments into standard practice. Correspondingly, exercise interventions for older adults should emphasize power-oriented training and coordinative skills, shifting the focus from simply &#8220;how much&#8221; one can lift to &#8220;how fast&#8221; one can lift it to more effectively target the specific deficits associated with aging and promote longevity.</p><div class="subscription-widget-wrap-editor" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe&quot;,&quot;language&quot;:&quot;en&quot;}" data-component-name="SubscribeWidgetToDOM"><div class="subscription-widget show-subscribe"><div class="preamble"><p class="cta-caption">Thanks for reading Zdenek Sipek Substack! Subscribe for free to receive new posts and support my work.</p></div><form class="subscription-widget-subscribe"><input type="email" class="email-input" name="email" placeholder="Type your email&#8230;" tabindex="-1"><input type="submit" class="button primary" value="Subscribe"><div class="fake-input-wrapper"><div class="fake-input"></div><div class="fake-button"></div></div></form></div></div><p><strong>1. Muscle Power: A Superior Predictor of Mortality</strong></p><p>The distinction between muscle strength (maximal force production) and muscle power (force multiplied by velocity) is critical for understanding functional aging. While both are important, emerging evidence strongly suggests that power is a more sensitive and prognostically relevant metric for long-term survival.</p><p><strong>The CLINIMEX Exercise Cohort Study Findings</strong></p><p>An analysis of the CLINIMEX Exercise cohort, which followed 3,899 participants aged 46-75 for a median of 10.8 years, provides compelling evidence for the superiority of muscle power as a predictor of mortality. The study, by Ara&#250;jo et al., compared relative muscle power (rPOW), assessed via an upper row movement, with relative muscle strength (rSTR), measured by the common handgrip test.</p><p>The results from multivariable regression analyses, adjusted for numerous comorbidities, were definitive:</p><p>&#8226; <strong>rPOW was a significantly stronger predictor of all-cause mortality than rSTR.</strong></p><p>&#8226; A clear dose-response relationship was observed, with higher power being strongly associated with lower mortality risk.</p><p>The hazard ratios (HRs) for mortality, comparing the lowest-performing category to the highest, highlight the substantial difference in predictive capability:</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!JnCm!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 424w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 848w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 1272w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!JnCm!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png" width="727" height="301.2313323572474" data-attrs="{&quot;src&quot;:&quot;https://substack-post-media.s3.amazonaws.com/public/images/639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png&quot;,&quot;srcNoWatermark&quot;:null,&quot;fullscreen&quot;:null,&quot;imageSize&quot;:null,&quot;height&quot;:283,&quot;width&quot;:683,&quot;resizeWidth&quot;:727,&quot;bytes&quot;:27367,&quot;alt&quot;:null,&quot;title&quot;:null,&quot;type&quot;:&quot;image/png&quot;,&quot;href&quot;:null,&quot;belowTheFold&quot;:true,&quot;topImage&quot;:false,&quot;internalRedirect&quot;:&quot;https://zdeneksipek.substack.com/i/180938594?img=https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png&quot;,&quot;isProcessing&quot;:false,&quot;align&quot;:null,&quot;offset&quot;:false}" class="sizing-normal" alt="" srcset="/__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 424w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 848w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 1272w, /__u/substackcdn.com/image/fetch/$s_!JnCm!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F639e7ade-efb9-4415-918d-7e08bc2a856c_683x283.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>The Functional Distinction Between Strength and Power</strong></p><p>The superior predictive value of muscle power stems from its direct relevance to activities of daily living. Many essential movements, such as rising quickly from a chair, climbing stairs, or reacting to prevent a fall, demand the rapid production of force, not just maximal static force.</p><p>&#8226; <strong>Physiological Decline:</strong> Aging is associated with a natural decline in muscle strength, but muscle power is known to decline even earlier and more rapidly. The velocity component of muscle function is often the first and most significantly impacted aspect of age-related neuromuscular decline.</p><p>&#8226; <strong>Functional Reserve:</strong> Muscle power serves as a more sensitive indicator of functional reserve. A decline in the ability to generate force quickly can precede the loss of maximal strength, signaling an increased risk of adverse events like falls, fractures, and loss of independence.</p><p><strong>2. The Neuromuscular Basis of Age-Related Muscle Decline</strong></p><p>The functional decline observed in aging individuals is a direct result of deep-seated morphological and neurological changes. <strong>Sarcopenia is increasingly understood not as an isolated muscle disease but as a manifestation of systemic aging, driven heavily by the deterioration of the nervous system</strong>.</p><p><strong>Sarcopenia as a Neurological Consequence</strong></p><p>The central thesis is that age-related muscle alterations are a secondary effect of impaired neuronal function. The structure, function, and phenotype of muscle fibers are intrinsically linked to the motor drives provided by the nervous system. As the nervous system ages, so too does the muscle it controls.</p><p>The key mechanism is <strong>motor unit remodeling</strong>. Beyond 60 years of age, human muscle undergoes an accelerating cycle of denervation (where muscle fibers lose their nerve connection) and reinnervation (where surviving neurons sprout new connections to &#8220;rescue&#8221; denervated fibers). Over time, this compensatory process fails, leading to a net loss of muscle fibers and motor units.</p><p><strong>Morphological and Structural Changes in Aging Muscle</strong></p><p>This neuromuscular decay results in profound and well-documented changes within the muscle tissue itself.</p><p>&#8226; <strong>Loss of Muscle Mass:</strong> Total muscle cross-sectional area decreases by approximately 40% between the ages of 20 and 60. Strength losses of 20-40% are common in healthy 70- to 80-year-olds.</p><p>&#8226; <strong>Fiber Atrophy and Loss:</strong> This mass reduction is caused by both a decrease in the size (atrophy) of individual muscle fibers and a significant decrease in the total number of fibers.</p><p> &#9702; <strong>Type II Fiber Predominance:</strong> The atrophy is fiber-type specific, with a more pronounced reduction in Type II (fast-twitch) fibers (20-50% size reduction) compared to Type I (slow-twitch) fibers (1-25% size reduction). This selective impact on Type II fibers directly explains the disproportionate loss of muscle <em>power</em>.</p><p> &#9702; <strong>Fiber Number:</strong> By the ninth decade of life, there may be 50% fewer Type I and Type II fibers compared to a young adult.</p><p>&#8226; <strong>Ultrastructural Degradation:</strong> At a microscopic level, aging muscle exhibits signs of disorganization and degeneration. This includes myofibrils becoming thinner and losing their structure, occasional loss of the Z-line within sarcomeres, and <strong>a notable increase in non-contractile tissues like fat and connective tissue within the muscle</strong>.</p><p><strong>Degeneration of the Nervous System</strong></p><p>The changes in muscle tissue are a reflection of a progressive failure of the peripheral and central nervous systems.</p><p>&#8226; <strong>Motor Neuron Loss:</strong> The number of motor neurons in the lumbosacral spinal cord is estimated to decrease by approximately 25% from the second to the tenth decade of life.</p><p>&#8226; <strong>Neuromuscular Junction (NMJ) Alterations:</strong> The critical synapse between nerve and muscle, the NMJ, undergoes age-related remodeling, including fragmentation, retraction of nerve terminals, and other changes that compromise the efficiency of motor drive and contribute to weakness.</p><p>&#8226; <strong>Fibre Type Grouping:</strong> A hallmark of aging muscle is the clustering of fibers of the same type. This phenomenon is believed to result from the chronic denervation-reinnervation cycle, where a surviving slow-twitch motor neuron reinnervates a cluster of both Type I and denervated Type II fibers, converting them to a slow-twitch profile. This contributes to the well-known slowing of muscle contractile properties with age.</p><p><strong>3. Implications for Clinical Practice and Exercise Intervention</strong></p><p>The combined evidence from functional outcomes and underlying biology necessitates a re-evaluation of how sarcopenia is diagnosed and how exercise is prescribed for older populations.</p><p><strong>Re-evaluating the Diagnosis of Sarcopenia</strong></p><p>The study by Ara&#250;jo et al. directly challenges the current clinical definitions of sarcopenia. The Global Leadership Initiative in Sarcopenia (GLIS) recently rejected the use of muscle power as a main diagnostic criterion. However, if power is a better predictor of mortality than strength, a definition of sarcopenia that excludes it may be missing a critical, prognostically relevant component of functional decline. This could lead to the misclassification of at-risk individuals and the use of suboptimal interventions.</p><p><strong>A Paradigm Shift in Assessment and Training</strong></p><p>A new approach is required for both measuring and improving muscle function in aging adults.</p><p>  &#9702; <strong>Coordination and Skill:</strong> To address the root neurological decline, exercise programs should aim to improve not only strength but also coordinative skills. Such training could stimulate neural adaptations that retard or prevent the consequences of the aging process at the level of the nervous system, with beneficial secondary effects on muscle function.</p><div class="captioned-image-container"><figure><a class="image-link image2 is-viewable-img" target="_blank" href="/__u/substackcdn.com/image/fetch/$s_!Low6!,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png" data-component-name="Image2ToDOM"><div class="image2-inset"><picture><source type="image/webp" srcset="/__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_424, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_webp, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 1456w" sizes="100vw"><img src="/__u/substackcdn.com/image/fetch/$s_!Low6!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png" width="1456" height="813" 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/__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 424w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_848, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 848w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_1272, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 1272w, /__u/substackcdn.com/image/fetch/$s_!Low6!, /__u/zdeneksipek.substack.com/w_1456, /__u/zdeneksipek.substack.com/c_limit, /__u/zdeneksipek.substack.com/f_auto, /__u/zdeneksipek.substack.com/q_auto:good, /__u/zdeneksipek.substack.com/fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Faff552f0-e11f-4a78-b8b1-597e34ecdba4_2752x1536.png 1456w" sizes="100vw" loading="lazy"></picture><div class="image-link-expand"><div class="pencraft pc-display-flex pc-gap-8 pc-reset"><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container restack-image"><svg aria-hidden="true" width="20" height="20" viewBox="0 0 20 20" fill="none" stroke-width="1.5" stroke="var(--color-fg-primary)" stroke-linecap="round" stroke-linejoin="round" xmlns="http://www.w3.org/2000/svg"><g><path d="M2.53001 7.81595C3.49179 4.73911 6.43281 2.5 9.91173 2.5C13.1684 2.5 15.9537 4.46214 17.0852 7.23684L17.6179 8.67647M17.6179 8.67647L18.5002 4.26471M17.6179 8.67647L13.6473 6.91176M17.4995 12.1841C16.5378 15.2609 13.5967 17.5 10.1178 17.5C6.86118 17.5 4.07589 15.5379 2.94432 12.7632L2.41165 11.3235M2.41165 11.3235L1.5293 15.7353M2.41165 11.3235L6.38224 13.0882"></path></g></svg></button><button tabindex="0" type="button" class="pencraft pc-reset pencraft icon-container view-image"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-maximize2 lucide-maximize-2"><polyline points="15 3 21 3 21 9"></polyline><polyline points="9 21 3 21 3 15"></polyline><line x1="21" x2="14" y1="3" y2="10"></line><line x1="3" x2="10" y1="21" y2="14"></line></svg></button></div></div></div></a></figure></div><p><strong>Personal Changes</strong></p><p>I am currently reconfiguring my training routine toward maximum variability. <a href="https://res.cloudinary.com/beachbody/image/upload/v1421088101/P90X3_FitnessGuide_P90X3FitnessGuide_ofpctw.pdf">P90X3</a> seems to be my priority choice at the moment due to its wide range of exercises involving strength, cardio (HIIT + <strong>plyometrics</strong>), <strong>core</strong>, yoga, Pilates, abs and both isometric and dynamic stretching.</p><div id="youtube2-_uVgPxaVssM" class="youtube-wrap" data-attrs="{&quot;videoId&quot;:&quot;_uVgPxaVssM&quot;,&quot;startTime&quot;:null,&quot;endTime&quot;:null}" data-component-name="Youtube2ToDOM"><div class="youtube-inner"><iframe src="https://www.youtube-nocookie.com/embed/_uVgPxaVssM?rel=0&amp;autoplay=0&amp;showinfo=0&amp;enablejsapi=0" frameborder="0" loading="lazy" gesture="media" allow="autoplay; fullscreen" allowautoplay="true" allowfullscreen="true" width="728" height="409"></iframe></div></div><div><hr></div><p class="button-wrapper" data-attrs="{&quot;url&quot;:&quot;https://zdeneksipek.substack.com/subscribe?&quot;,&quot;text&quot;:&quot;Subscribe now&quot;,&quot;action&quot;:null,&quot;class&quot;:null}" data-component-name="ButtonCreateButton"><a class="button primary" href="/__u/zdeneksipek.substack.com/subscribe"><span>Subscribe now</span></a></p><p>Sources:</p><p><a href="https://www.mayoclinicproceedings.org/action/showPdf?pii=S0025-6196%2825%2900346-5">Carbone, Salvatore. Alonso, Windy W. et al. The Need for Speed: Improving Muscle Power for Longevity. Mayo Clinic Proceedings, Volume 100, Issue 8, 1281 - 1284.</a></p><p><a href="https://link.springer.com/content/pdf/10.1007/s11556-006-0011-9.pdf">Figueiredo, P. A., Mota, M. P., Appell, H. J., &amp; Duarte, J. (2006). Ceasing of muscle function with aging: Is it the consequence of intrinsic muscle degeneration or a secondary effect of neuronal impairments? </a><em><a href="https://link.springer.com/content/pdf/10.1007/s11556-006-0011-9.pdf">European Review of Aging and Physical Activity</a></em><a href="https://link.springer.com/content/pdf/10.1007/s11556-006-0011-9.pdf">, </a><em><a href="https://link.springer.com/content/pdf/10.1007/s11556-006-0011-9.pdf">3</a></em><a href="https://link.springer.com/content/pdf/10.1007/s11556-006-0011-9.pdf">(2), 75-83.</a></p>]]></content:encoded></item></channel></rss>