{"id":3099,"date":"2026-04-20T13:56:54","date_gmt":"2026-04-20T13:56:54","guid":{"rendered":"https:\/\/pge2-hypothesis.com\/?page_id=3099"},"modified":"2026-04-20T14:11:50","modified_gmt":"2026-04-20T14:11:50","slug":"lc-mechanisms-evoluated-for-survival-and-hibernation","status":"publish","type":"page","link":"https:\/\/pge2-hypothesis.com\/?page_id=3099","title":{"rendered":"LC mechanisms evoluated for survival and hibernation?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3099\" class=\"elementor elementor-3099\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4c605b6d e-flex e-con-boxed e-con e-parent\" data-id=\"4c605b6d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-37114a1 elementor-widget elementor-widget-heading\" data-id=\"37114a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u201cHormonal multi-resistance\u201d as a context-dependent survival mechanism?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31749c69 elementor-widget elementor-widget-text-editor\" data-id=\"31749c69\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><br \/>A highly complex mechanism as the proposed \u201cHormonal multi-resistance\u201d, is unlikely to represent a simple evolutionary accident. We have suggested that elevated PGE2 signaling antagonizes multiple hormonal pathways, potentially functioning as an energy-conserving response to physiological stress. From an evolutionary perspective, a heightened form of multiple hormonal resistance may have been advantageous in contexts such as hibernation, where resistance to leptin, AVP <sup>1<\/sup> and insulin supports hyperphagia, elevated glucose levels, and fat accumulation. Consistent with this view, hibernation is associated with transient leptin and insulin resistance <sup>2<\/sup> as well as a shift toward fatty acid metabolism <sup>2<\/sup>, which liberates arachidonic acid (AA), providing substrate for COX-2-mediated PGE2 synthesis. Sustained PGE2 signaling &#8211; potentially driven by altered EP receptor balance &#8211; may reduce hormonal responsiveness, suppress sympathetic activity, and promote <strong>sleep-like states<\/strong>. While adaptive and reversible in hibernating species, prolonged activation in humans may be maladaptive, contributing to persistent homeostatic dysregulation. Although this framework remains speculative, it is supported by the comprehensive review of molecular adaptations in mammalian hibernators by van Breukelen and Martin (2002) <sup>2<\/sup>.\u00a0<\/p>\n<!-- \/wp:paragraph --><!-- wp:paragraph -->\n<p>1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Aoyagi, T.<em> et al.<\/em> Alteration of glucose homeostasis in V1a vasopressin receptor-deficient mice. <em>Endocrinology<\/em> <strong>148<\/strong>, 2075-2084 (2007). <a href=\"https:\/\/doi.org\/10.1210\/en.2006-1315\">https:\/\/doi.org\/10.1210\/en.2006-1315<\/a><\/p>\n<!-- \/wp:paragraph --><!-- wp:paragraph -->\n<p>2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Van Breukelen, F. &amp; Martin, S. L. Invited review: molecular adaptations in mammalian hibernators: unique adaptations or generalized responses? <em>J Appl Physiol (1985)<\/em> <strong>92<\/strong>, 2640-2647 (2002). <a href=\"https:\/\/doi.org\/10.1152\/japplphysiol.01007.2001\">https:\/\/doi.org\/10.1152\/japplphysiol.01007.2001<\/a><\/p>\n<!-- \/wp:paragraph -->\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u201cHormonal multi-resistance\u201d as a context-dependent survival mechanism? A highly complex mechanism as the proposed \u201cHormonal multi-resistance\u201d, is unlikely to represent [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-3099","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/pages\/3099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3099"}],"version-history":[{"count":15,"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/pages\/3099\/revisions"}],"predecessor-version":[{"id":3124,"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=\/wp\/v2\/pages\/3099\/revisions\/3124"}],"wp:attachment":[{"href":"https:\/\/pge2-hypothesis.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}