{"id":130385,"date":"2024-11-26T19:44:35","date_gmt":"2024-11-26T12:44:35","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=130385"},"modified":"2024-11-26T19:44:35","modified_gmt":"2024-11-26T12:44:35","slug":"the-blood-of-exceptionally-long-lived-people-shows-crucial-differences-sciencealert","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=130385","title":{"rendered":"The Blood of Exceptionally Long-Lived People Shows Crucial Differences : ScienceAlert"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p>Centenarians, once considered rare, have become commonplace. Indeed, they are the <a href=\"https:\/\/www.weforum.org\/agenda\/2021\/02\/living-to-one-hundred-life-expectancy\/\">fastest-growing demographic group<\/a> of the world&#8217;s population, with numbers roughly doubling every ten years since the 1970s.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>How long humans can live, and what determines a long and healthy life, have been of interest for as long as we know. Plato and Aristotle discussed and <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12092789\/\">wrote about the ageing process<\/a> over 2,300 years ago.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>The pursuit of understanding the secrets behind exceptional longevity isn&#8217;t easy, however.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>It involves <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC7105197\/\">unravelling the complex interplay<\/a> of genetic predisposition and lifestyle factors and how they interact throughout a person&#8217;s life.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Now our recent study, <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11357-023-00936-w\">published in <em>GeroScience<\/em>,<\/a> has unveiled some common biomarkers, including levels of cholesterol and glucose, in people who live past 90.<\/p>\n<figure id=\"attachment_103536\" aria-describedby=\"caption-attachment-103536\" style=\"width: 642px\" class=\"wp-caption alignnone\"><img decoding=\"async\" src=\"https:\/\/www.sciencealert.com\/images\/2023\/08\/OldWomanHoldsHerYoungPhotoUp-642x260.jpg\" alt=\"Old Woman Holds Her Young Photo Up\" width=\"642\" height=\"260\" class=\"wp-image-103536 size-medium\" srcset=\"https:\/\/www.sciencealert.com\/images\/2023\/08\/OldWomanHoldsHerYoungPhotoUp-642x260.jpg 642w, https:\/\/www.sciencealert.com\/images\/2023\/08\/OldWomanHoldsHerYoungPhotoUp-768x311.jpg 768w, https:\/\/www.sciencealert.com\/images\/2023\/08\/OldWomanHoldsHerYoungPhotoUp-600x243.jpg 600w, https:\/\/www.sciencealert.com\/images\/2023\/08\/OldWomanHoldsHerYoungPhotoUp.jpg 1024w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" loading=\"lazy\"\/><figcaption id=\"caption-attachment-103536\" class=\"wp-caption-text\">(Dimitri Otis\/Getty Images)<\/figcaption><\/figure>\n<p>Nonagenarians and centenarians have long been of intense interest to scientists as they may help us understand how to live longer, and perhaps also how to age in better health.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>So far, studies of centenarians have often been small scale and focused on a selected group, for example, excluding centenarians who live in care homes.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<h2>Huge dataset<\/h2>\n<p>Ours is the largest study comparing biomarker profiles measured throughout life among exceptionally long-lived people and their shorter-lived peers to date.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>We compared the biomarker profiles of people who went on to live past the age of 100, and their shorter-lived peers, and investigated the link between the profiles and the chance of becoming a centenarian.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Our research included data from 44,000 Swedes who underwent health assessments at ages 64-99 &#8211; they were a sample of <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/28158674\/\">the so-called Amoris cohort<\/a>.<\/p>\n<figure id=\"attachment_87621\" aria-describedby=\"caption-attachment-87621\" style=\"width: 642px\" class=\"wp-caption alignnone\"><img decoding=\"async\" src=\"https:\/\/www.sciencealert.com\/images\/2023\/02\/GeneticMutationImpressionWithGlowingCentreOfDNA-642x260.jpg\" alt=\"\" width=\"642\" height=\"260\" class=\"wp-image-87621 size-medium\" srcset=\"https:\/\/www.sciencealert.com\/images\/2023\/02\/GeneticMutationImpressionWithGlowingCentreOfDNA-642x260.jpg 642w, https:\/\/www.sciencealert.com\/images\/2023\/02\/GeneticMutationImpressionWithGlowingCentreOfDNA.jpg 1024w, https:\/\/www.sciencealert.com\/images\/2023\/02\/GeneticMutationImpressionWithGlowingCentreOfDNA-768x311.jpg 768w, https:\/\/www.sciencealert.com\/images\/2023\/02\/GeneticMutationImpressionWithGlowingCentreOfDNA-600x243.jpg 600w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" loading=\"lazy\"\/><figcaption id=\"caption-attachment-87621\" class=\"wp-caption-text\">(Science Photo Library\/Canva)<\/figcaption><\/figure>\n<p>These participants were then followed through Swedish register data for up to 35 years. Of these people, 1,224, or 2.7%, lived to be 100 years old. The vast majority (85%) of the centenarians were female.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Twelve blood-based biomarkers related to inflammation, metabolism, liver and kidney function, as well as potential malnutrition and anaemia, were included. All of these <a href=\"https:\/\/www.nature.com\/articles\/s41591-019-0719-5\">have been associated<\/a> with ageing or mortality in previous studies.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>The biomarker related to inflammation was uric acid \u2013 a waste product in the body caused by the digestion of certain foods.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>We also looked at markers linked to metabolic status and function including total cholesterol and glucose, and ones related to liver function, such as alanine aminotransferase (Alat), aspartate aminotransferase (Asat), albumin, gamma-glutamyl transferase (GGT), alkaline phosphatase (Alp) and lactate dehydrogenase (LD).<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>We also looked at creatinine, which is linked to kidney function, and iron and total iron-binding capacity (TIBC), which is linked to anaemia. Finally, we also investigated albumin, a biomarker associated with nutrition.<\/p>\n<figure id=\"attachment_135978\" aria-describedby=\"caption-attachment-135978\" style=\"width: 642px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.sciencealert.com\/images\/2024\/08\/older_couple_ADRD-642x260.jpg\" alt=\"older couple at beach\" width=\"642\" height=\"260\" class=\"size-medium wp-image-135978\" srcset=\"https:\/\/www.sciencealert.com\/images\/2024\/08\/older_couple_ADRD-642x260.jpg 642w, https:\/\/www.sciencealert.com\/images\/2024\/08\/older_couple_ADRD-768x311.jpg 768w, https:\/\/www.sciencealert.com\/images\/2024\/08\/older_couple_ADRD-600x243.jpg 600w, https:\/\/www.sciencealert.com\/images\/2024\/08\/older_couple_ADRD.jpg 1024w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" loading=\"lazy\"\/><figcaption id=\"caption-attachment-135978\" class=\"wp-caption-text\">Studies of centenarians have often been small scale. (Halfpoint Images\/Getty Images)<\/figcaption><\/figure>\n<h2>Findings<\/h2>\n<p>We found that, on the whole, those who made it to their hundredth birthday tended to have lower levels of glucose, creatinine and uric acid from their sixties onwards.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Although the median values didn&#8217;t differ significantly between centenarians and non-centenarians for most biomarkers, centenarians seldom displayed extremely high or low values.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>For example, very few of the centenarians had a glucose level above 6.5 mmol\/L earlier in life, or a creatinine level above 125 \u00b5mol\/L.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>For many of the biomarkers, both centenarians and non-centenarians had values outside of the range considered normal in clinical guidelines.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>This is probably because these guidelines are set based on a younger and healthier population.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>When exploring which biomarkers were linked to the likelihood of reaching 100, we found that all but two (alat and albumin) of the 12 biomarkers showed a connection to the likelihood of turning 100. This was even after accounting for age, sex and disease burden.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>The people in the lowest out of five groups for levels of total cholesterol and iron had a lower chance of reaching 100 years as compared to those with higher levels.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Meanwhile, people with higher levels of glucose, creatinine, uric acid and markers for liver function also decreased the chance of becoming a centenarian.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>In absolute terms, the differences were rather small for some of the biomarkers, while for others the differences were somewhat more substantial.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>For uric acid, for instance, the absolute difference was 2.5 percentage points. This means that people in the group with the lowest uric acid had a 4% chance of turning 100 while in the group with the highest uric acid levels only 1.5% made it to age 100.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Even if the differences we discovered were overall rather small, they suggest a potential link between metabolic health, nutrition and exceptional longevity.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>The study, however, does not allow any conclusions about which lifestyle factors or genes are responsible for the biomarker values.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>However, it is reasonable to think that factors such as nutrition and alcohol intake play a role.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>Keeping track of your kidney and liver values, as well as glucose and uric acid as you get older, is probably not a bad idea.<\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p>That said, chance probably plays a role at some point in reaching an exceptional age.<\/p>\n<p>But the fact that differences in biomarkers could be observed a long time before death suggests that genes and lifestyle may also play a role.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/counter.theconversation.com\/content\/215166\/count.gif?distributor=republish-lightbox-basic\" alt=\"The Conversation\" width=\"1\" height=\"1\" style=\"border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;\" referrerpolicy=\"no-referrer-when-downgrade\"\/><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines -->\n<\/p>\n<p><a href=\"https:\/\/theconversation.com\/profiles\/karin-modig-1473484\"><em>Karin Modig<\/em><\/a><em>, Associate Professor, Epidemiology, <a href=\"https:\/\/theconversation.com\/institutions\/karolinska-institutet-1250\">Karolinska Institutet<\/a><\/em><\/p>\n<p><!-- START single\/mrec --><br \/>\n<!-- END single\/mrec --><\/p>\n<p><strong>This article is republished from <a href=\"https:\/\/theconversation.com\">The Conversation<\/a> under a Creative Commons license. Read the <a href=\"https:\/\/theconversation.com\/centenarian-blood-tests-give-hints-of-the-secrets-to-longevity-215166\">original article<\/a>.<\/strong><\/p>\n<p><em>An earlier version of this article was published in October 2023. A <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11357-023-00996-y\">correction<\/a> to one detail of the original study was published in November 2023.<\/em><\/p>\n<\/p><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.sciencealert.com\/the-blood-of-exceptionally-long-lived-people-shows-crucial-differences\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Centenarians, once considered rare, have become commonplace. Indeed, they are the fastest-growing demographic group of the world&#8217;s population, with numbers roughly doubling every ten years since the 1970s. How long &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=130385\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-130385","post","type-post","status-publish","format-standard","hentry","category-health","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/130385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=130385"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/130385\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=130385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=130385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=130385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}