Oamenii de \u0219tiin\u021b\u0103 au identificat, \u00een premier\u0103, 12 zone din secven\u021ba ADN asociate cu v\u00e2rsta la care un om are primul copil \u0219i cu num\u0103rul total de copii pe care \u00eei are de-a lungul vie\u021bii. Acest studiu, la care au conlucrat peste 250 de sociologi, biologi \u0219i geneticieni din mai multe institu\u021bii din lume, a fost publicat mar\u021bi \u00een jurnalul ”Nature Genetics”, informeaz\u0103 Science Daily.<\/p>\n
Despre comportamentul reproductiv s-a crezut p\u00e2n\u0103 acum c\u0103 este determinat de alegerile personale, circumstan\u021bele sociale \u0219i factorii de mediu. \u00cens\u0103, acest nou studiu arat\u0103 c\u0103 exist\u0103 \u0219i o baz\u0103 biologic\u0103 pentru acesta, scrie Agerpres.ro.<\/p>\n
Cercetarea realizat\u0103 de oameni de \u0219tiin\u021b\u0103 de la Universitatea Oxford din Marea Britanie, Universitatea Groningen din Olanda \u0219i de la Universitatea Uppsala din Suedia a presupus analiza a 62 de seturi de date cu informa\u021bii provenite de la 238.064 de b\u0103rba\u021bi \u0219i femei \u2014 pentru analizarea v\u00e2rstei la care este n\u0103scut primul copil \u2014 \u0219i de la aproape 330.000 de b\u0103rba\u021bi \u0219i femei \u2014 pentru analizarea num\u0103rului de copii n\u0103scu\u021bi.<\/p>\n
Melinda Mills, profesoar\u0103 la Universitatea Oxford, a declarat c\u0103 \u00een cadrul cercet\u0103rii s-au descoperit cazurile unor femei care aveau variante de ADN responsabile de am\u00e2narea sarcinii, dar \u0219i ”p\u0103r\u021bi” ale codului ADN asociate cu apari\u021bia mai t\u00e2rzie a menstrua\u021biei \u0219i a menopauzei. Aceasta a precizat c\u0103 astfel de informa\u021bii vor putea fi folosite ”la un moment dat” de medici pentru a r\u0103spunde femeilor care doresc s\u0103 \u0219tie ”c\u00e2t de mult pot a\u0219tepta” p\u00e2n\u0103 s\u0103 se g\u00e2ndeasc\u0103 serios s\u0103 r\u0103m\u00e2n\u0103 gravide.<\/p>\n
Cercetarea demonstreaz\u0103 c\u0103 variantele ADN care au leg\u0103tur\u0103 cu v\u00e2rsta la care oamenii au primul copil sunt asociate cu alte caracteristici ce reflect\u0103 dezvoltarea reproductiv\u0103 \u0219i sexual\u0103, precum v\u00e2rsta la care fetele au prima menstrua\u021bie, c\u00e2nd se schimb\u0103 vocea la b\u0103ie\u021bi \u0219i stadiul \u00een care apare menopauza.<\/p>\n
sursa: realitatea.net<\/p>\n","protected":false},"excerpt":{"rendered":"
Oamenii de \u0219tiin\u021b\u0103 au identificat, \u00een premier\u0103, 12 zone din secven\u021ba ADN asociate cu v\u00e2rsta la care un om are<\/p>\n","protected":false},"author":1,"featured_media":8455,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":"","jetpack_publicize_message":""},"categories":[12],"tags":[],"class_list":["post-15101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiri-internationale"],"jetpack_featured_media_url":"https:\/\/i2.wp.com\/realitatearutiera.ro\/wp-content\/uploads\/2016\/05\/doctori_analize_laborator.jpg?fit=600%2C400&ssl=1","jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p61naM-3Vz","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/15101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15101"}],"version-history":[{"count":1,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/15101\/revisions"}],"predecessor-version":[{"id":15102,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/posts\/15101\/revisions\/15102"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=\/wp\/v2\/media\/8455"}],"wp:attachment":[{"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/realitatearutiera.ro\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}