{"id":718929,"date":"2026-10-18T17:37:04","date_gmt":"2026-10-18T17:37:04","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=718929"},"modified":"2026-10-18T17:37:04","modified_gmt":"2026-10-18T17:37:04","slug":"pielea-are-sex-cercetatorii-au-descoperit-ca-pielea-femelelor-si-a-masculilor-se-reface-dupa-reguli-diferite","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=718929","title":{"rendered":"\u201ePielea are sex\u201d. Cercet\u0103torii au descoperit c\u0103 pielea femelelor \u0219i a masculilor se reface dup\u0103 reguli diferite"},"content":{"rendered":"<div class=\"sgb-google-buttons\">\n<div class=\"display-flex justify-center google-logo\"><img decoding=\"async\" loading=\"lazy\" class=\"mg-x-auto\" width=\"30\" height=\"30\" src=\"https:\/\/microscopemedia.com\/wp-content\/uploads\/2026\/10\/pielea-are-sex-cercetatorii-au-descoperit-ca-pielea-femelelor-si-a-masculilor-se-reface-dupa-reguli-diferite.png\" alt><\/div>\n<\/p><\/div>\n<p dir=\"ltr\" id=\"p-0\">La \u0219oarecii de sex feminin, dou\u0103 celule \u201esurori\u201d, n\u0103scute din diviziunea aceleia\u0219i celule, iau adesea aceea\u0219i decizie \u00een acela\u0219i timp: fie se divid din nou, fie \u00eencep s\u0103 se transforme \u00een celule mature ale pielii. Cercet\u0103torii le compar\u0103 cu doi canotori care v\u00e2slesc \u00een acela\u0219i ritm. La cei de sex masculin, fiecare celul\u0103 \u00ee\u0219i urmeaz\u0103 mai mult propriul drum.<\/p>\n<p dir=\"ltr\" id=\"p-1\">Studiul, publicat \u00een revista <a href=\"https:\/\/www.nature.com\/\" target=\"_blank\" rel=\"noopener\">Nature<\/a>, a fost coordonat de profesorul C\u00e9dric Blanpain, de la Universitatea Liber\u0103 din Bruxelles, \u00eempreun\u0103 cu echipa profesorului Benjamin Simons, de la Universitatea Cambridge. Au participat \u0219i cercet\u0103tori din Belgia, Italia \u0219i Statele Unite.<\/p>\n<h2 dir=\"ltr\" id=\"chapter-0\">Cinci luni de observa\u021bie, o surpriz\u0103<\/h2>\n<p dir=\"ltr\" id=\"p-2\">Cu o tehnic\u0103 avansat\u0103 de microscopie, cercet\u0103torii au urm\u0103rit acelea\u0219i celule stem \u0219i descenden\u021bii lor prin pielea unor \u0219oareci vii, timp de cinci luni, <strong>o perioad\u0103 f\u0103r\u0103 precedent<\/strong>. Scopul ini\u021bial era s\u0103 \u00een\u021beleag\u0103 cum se re\u00eennoie\u0219te pielea.<\/p>\n<p dir=\"ltr\" id=\"p-3\">\u201eAm fost surprin\u0219i s\u0103 descoperim diferen\u021be puternice \u00een modul \u00een care celulele stem re\u00eennoiesc pielea \u00een func\u021bie de sex\u201d, explic\u0103 dr. Dan Engelman, primul autor al studiului.<\/p>\n<p dir=\"ltr\" id=\"p-4\">Cercet\u0103torii au aflat \u0219i c\u0103 celulele stem nu devin direct celule mature ale pielii. Ele trec printr-o etap\u0103 intermediar\u0103, \u00een care se mai pot divide de un num\u0103r limitat de ori, o \u00eentrebare care \u00eemp\u0103r\u021bea speciali\u0219tii de decenii.<\/p>\n<h2 dir=\"ltr\" id=\"chapter-1\">Hormonii dau ritmul<\/h2>\n<p dir=\"ltr\" id=\"p-5\">Diferen\u021bele sunt controlate de hormonii sexuali. Testosteronul determin\u0103 c\u00e2t de repede se maturizeaz\u0103 celulele pielii. Dup\u0103 castrare, pielea \u0219oarecilor de sex masculin a \u00eenceput s\u0103 se comporte ca a celor de sex feminin, iar un tratament cu o form\u0103 activ\u0103 de testosteron a readus comportamentul ini\u021bial.<\/p>\n<p dir=\"ltr\" id=\"p-6\">Estrogenii stimuleaz\u0103 \u00een schimb \u00eenmul\u021birea celulelor stem \u0219i coordonarea lor. Dup\u0103 \u00eendep\u0103rtarea ovarelor, sincronizarea dintre celulele surori aproape a disp\u0103rut. Pe piele uman\u0103 reconstruit\u0103 \u00een laborator, testosteronul a accelerat \u0219i el maturizarea celulelor, ceea ce sugereaz\u0103 c\u0103 mecanismul ar putea func\u021biona par\u021bial \u0219i la oameni.<\/p>\n<h2 dir=\"ltr\" id=\"chapter-2\">Ce ar putea \u00eensemna pentru tratamente<\/h2>\n<p dir=\"ltr\" id=\"p-7\">La \u0219oarecii de sex feminin, r\u0103nile de pe spate s-au \u00eenchis mult mai repede, mai ales \u00een primele zile. Diferen\u021ba s-a redus pe m\u0103sur\u0103 ce vindecarea a avansat.<\/p>\n<p dir=\"ltr\" id=\"p-8\">Medicii au observat de mult diferen\u021be \u00eentre femei \u0219i b\u0103rba\u021bi \u00een vindecarea r\u0103nilor, \u00een gravitatea unor boli inflamatorii \u0219i \u00een frecven\u021ba unor cancere de piele, f\u0103r\u0103 o explica\u021bie biologic\u0103 complet\u0103. Descoperirea ar putea ajuta, \u00een timp, la tratamente adaptate sexului pacientului, pentru arsuri, recuperarea dup\u0103 opera\u021bii sau r\u0103nile cronice ale persoanelor cu diabet. Ea ar putea contribui \u0219i la noi metode de prevenire a cancerului de piele. Rezultatele au fost \u00eens\u0103 demonstrate doar la \u0219oareci, iar cercet\u0103torii spun c\u0103 sunt necesare noi studii pentru a vedea c\u00e2t de mult se aplic\u0103 pielii umane.<\/p>\n<p dir=\"ltr\" id=\"p-9\">\u201eSexul este un parametru prea des ignorat \u00een biologie \u0219i medicin\u0103\u201d, spune profesorul Blanpain, care anun\u021b\u0103 c\u0103 echipa va studia acum diferen\u021bele dintre femei \u0219i b\u0103rba\u021bi \u00een apari\u021bia \u0219i evolu\u021bia cancerelor de piele.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La \u0219oarecii de sex feminin, dou\u0103 celule \u201esurori\u201d, n\u0103scute din diviziunea aceleia\u0219i celule, iau adesea aceea\u0219i decizie \u00een acela\u0219i timp: fie se divid din nou, fie \u00eencep s\u0103 se transforme &hellip; <a href=\"https:\/\/microscopemedia.com\/?p=718929\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":718930,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/718929"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=718929"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/718929\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/718930"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=718929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=718929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=718929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}