{"id":674102,"date":"2026-01-30T07:16:03","date_gmt":"2026-01-30T07:16:03","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=674102"},"modified":"2026-01-30T07:16:03","modified_gmt":"2026-01-30T07:16:03","slug":"longevitatea-sub-semnul-intrebarii-ce-determina-de-fapt-cat-traim","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=674102","title":{"rendered":"Longevitatea, sub semnul \u00eentreb\u0103rii: Ce determin\u0103, de fapt, c\u00e2t tr\u0103im"},"content":{"rendered":"
<\/div>\n

C\u00e2t de mult tr\u0103iesc oamenii ar putea depinde \u00eentr-o m\u0103sur\u0103 mult mai mare de genetic\u0103 dec\u00e2t se credea anterior, potrivit unui nou studiu din Israel, scrie Ynetnews<\/a><\/span>.<\/p>\n

Cercet\u0103torii estimeaz\u0103 acum c\u0103 genele explic\u0103 aproximativ jum\u0103tate din varia\u021biile duratei de via\u021b\u0103, contest\u00e2nd decenii de ipoteze \u0219tiin\u021bifice.<\/p>\n

Rolul geneticii \u00een longevitate, reevaluat<\/h2>\n

Timp de ani de zile, oamenii de \u0219tiin\u021b\u0103 au considerat c\u0103 genetica explic\u0103 doar 20\u201325% din diferen\u021bele privind speran\u021ba de via\u021b\u0103, unele studii recente cobor\u00e2nd aceast\u0103 estimare sub 10%.<\/p>\n

Noua cercetare, realizat\u0103 la Institutul Weizmann pentru \u0218tiin\u021b\u0103 \u0219i publicat\u0103 \u00een revista Science, sugereaz\u0103 c\u0103 aceast\u0103 perspectiv\u0103 era incomplet\u0103.<\/p>\n

Echipa a constatat c\u0103 genetica ar putea explica aproximativ 50% din durata vie\u021bii, mai ales \u00een societ\u0103\u021bile moderne, unde mortalitatea extern\u0103 este mai sc\u0103zut\u0103.<\/p>\n

Studiul a fost coordonat de doctorandul Ben Shenhav, \u00een laboratorul profesorului Uri Alon, directorul Centrulului Sagol pentru Cercetarea Longevit\u0103\u021bii.<\/p>\n

Cercetarea reia \u00eentreb\u0103ri vechi despre echilibrul dintre gene \u0219i mediu \u00een determinarea longevit\u0103\u021bii.<\/p>\n

De ce studiile anterioare au subestimat genetica<\/h2>\n

\u00cen mod tradi\u021bional, cercet\u0103rile despre longevitate s-au bazat pe studii pe gemeni \u0219i arbori genealogici, folosind date din r\u00e2ndul persoanelor n\u0103scute la sf\u00e2r\u0219itul secolului al XIX-lea \u0219i \u00eenceputul secolului XX.<\/p>\n

\u00cen acea perioad\u0103, decesele cauzate de infec\u021bii, accidente \u0219i violen\u021b\u0103 erau frecvente.<\/p>\n

Aceste cauze externe mascau adesea similitudinile genetice, duc\u00e2nd la subestimarea influen\u021bei eredit\u0103\u021bii.<\/p>\n

Metodele statistice clasice au avut dificult\u0103\u021bi \u00een separarea factorilor genetici de riscurile de mediu severe.<\/p>\n

Gemenii cu gene identice puteau muri la diferen\u021b\u0103 de decenii din cauza bolilor sau r\u0103nilor, distorsion\u00e2nd rezultatele.<\/p>\n

Gemenii virtuali \u0219i o nou\u0103 abordare de modelare<\/h2>\n

Pentru a dep\u0103\u0219i lipsa datelor istorice, cercet\u0103torii au folosit tehnici de modelare matematic\u0103 inspirate din fizic\u0103.<\/p>\n

Ei au creat \u201egemeni virtuali\u201d cu parametri biologici identici, elimin\u00e2nd factori precum bolile \u0219i violen\u021ba.<\/p>\n

Odat\u0103 \u00eendep\u0103rtate aceste riscuri externe, contribu\u021bia genetic\u0103 la durata vie\u021bii a crescut semnificativ.<\/p>\n

Modelul a indicat c\u0103 genetica explic\u0103 aproximativ jum\u0103tate din varia\u021bia longevit\u0103\u021bii, concluzie sus\u021binut\u0103 ulterior de date reale din Suedia, analiz\u00e2nd gemeni n\u0103scu\u021bi \u00eentre 1920 \u0219i 1930.<\/p>\n

Stilul de via\u021b\u0103 r\u0103m\u00e2ne important<\/h2>\n

\u00cen ciuda rezultatelor puternice legate de genetic\u0103, cercet\u0103torii subliniaz\u0103 c\u0103 stilul de via\u021b\u0103<\/a><\/span> r\u0103m\u00e2ne esen\u021bial.<\/p>\n

Chiar dac\u0103 genetica explic\u0103 50% din longevitate, cealalt\u0103 jum\u0103tate \u021bine de nutri\u021bie<\/a><\/span>, activitate fizic\u0103 \u0219i condi\u021bii de trai.<\/p>\n

Studiul deschide noi direc\u021bii \u00een cercetarea \u00eemb\u0103tr\u00e2nirii, reafirm\u00e2nd importan\u021ba studiilor genetice.<\/p>\n

\u00cen\u021belegerea genelor protectoare ale persoanelor care ajung la v\u00e2rste foarte \u00eenaintate \u00een stare bun\u0103 de s\u0103n\u0103tate ar putea duce, \u00een timp, la tratamente care s\u0103 \u00eencetineasc\u0103 \u00eemb\u0103tr\u00e2nirea \u0219i s\u0103 prelungeasc\u0103 via\u021ba s\u0103n\u0103toas\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2t de mult tr\u0103iesc oamenii ar putea depinde \u00eentr-o m\u0103sur\u0103 mult mai mare de genetic\u0103 dec\u00e2t se credea anterior, potrivit unui nou studiu din Israel, scrie Ynetnews. Cercet\u0103torii estimeaz\u0103 acum … Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":674103,"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\/674102"}],"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=674102"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/674102\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/674103"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=674102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=674102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=674102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}