{"id":4432,"date":"2019-05-27T10:34:24","date_gmt":"2019-05-27T07:34:24","guid":{"rendered":"https:\/\/mereusanatosi.ro\/wp\/?p=4432"},"modified":"2019-05-27T10:34:26","modified_gmt":"2019-05-27T07:34:26","slug":"atentie-fumatul-provoaca-efecte-adverse-asupra-dezvoltarii-embrionare-la-nivelul-celulelor-individuale","status":"publish","type":"post","link":"https:\/\/mereusanatosi.ro\/wp\/2019\/05\/27\/atentie-fumatul-provoaca-efecte-adverse-asupra-dezvoltarii-embrionare-la-nivelul-celulelor-individuale\/","title":{"rendered":"Aten\u021bie! Fumatul provoac\u0103 efecte adverse asupra dezvolt\u0103rii embrionare la nivelul celulelor individuale!"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"800\" height=\"445\" src=\"https:\/\/mereusanatosi.ro\/wp\/wp-content\/uploads\/2019\/05\/fumat-fravida-800x445.jpg\" alt=\"\" class=\"wp-image-4433\" srcset=\"https:\/\/mereusanatosi.ro\/wp\/wp-content\/uploads\/2019\/05\/fumat-fravida-800x445.jpg 800w, https:\/\/mereusanatosi.ro\/wp\/wp-content\/uploads\/2019\/05\/fumat-fravida-300x167.jpg 300w, https:\/\/mereusanatosi.ro\/wp\/wp-content\/uploads\/2019\/05\/fumat-fravida-768x427.jpg 768w, https:\/\/mereusanatosi.ro\/wp\/wp-content\/uploads\/2019\/05\/fumat-fravida.jpg 1067w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>Surs\u0103 foto: https:\/\/utswmed.org<\/figcaption><\/figure>\n\n\n\n<p>Potrivit unui\nstudiu publicat \u00een revista on-line Cell Reports, nicotina induce efecte adverse\npe scar\u0103 larg\u0103 asupra dezvolt\u0103rii embrionare umane la nivelul celulelor\nindividuale. Cercet\u0103torii au constatat c\u0103 expunerea la nicotin\u0103 \u00eentrerupe\ncomunicarea celular\u0103, scade supravie\u021buirea celulelor \u0219i modific\u0103 expresia\ngenelor care regleaz\u0103 func\u021biile esen\u021biale ale acestora. <\/p>\n\n\n\n<p>Oamenii de \u0219tiin\u021b\u0103\nsunt de p\u0103rere c\u0103 acest model de celule stem ofer\u0103 noi perspective asupra\nefectelor nicotinei \u00een ceea ce prive\u0219te organele \u0219i celulele individuale ale f\u0103tului\n\u00een curs de dezvoltare. Aceste rezultate sunt deosebit de importante, deoarece\nofer\u0103 o baz\u0103 \u0219tiin\u021bific\u0103, \u00een special pentru femeile tinere sau gravide. Fumatul\n\u00een timpul sarcinii este un factor de risc cunoscut pentru efectele nocive, cum\nar fi avortul spontan, \u00eencetinirea cre\u0219terii \u0219i na\u0219terea prematur\u0103. Acesta este\nasociat \u00eendeaproape cu afec\u021biunile neuro-comportamentale, cardiovasculare,\nrespiratorii, endocrine \u0219i metabolice pe termen lung. <\/p>\n\n\n\n<p>\u00cen cadrul\nstudiului, oamenii de \u0219tiin\u021b\u0103 au folosit secven\u021bierea ARN-ului cu o singur\u0103\ncelul\u0103 pentru a analiza efectele a 21 de zile de expunere la nicotin\u0103 asupra\ntranscriptomilor unui total de 12.500 de celule generate de organisme embrionare\nderivate din hESC. Ei au descoperit c\u0103 supravie\u021buirea celular\u0103 a sc\u0103zut, ceea\nce sugereaz\u0103 c\u0103 nicotina poate afecta dezvoltarea embrionului \u00eenc\u0103 din stadiul\nde preimplantare. Expunerea la nicotin\u0103 a redus, de asemenea, dimensiunea\ncorpurilor embrioloide, a crescut nivelul de molecule d\u0103un\u0103toare (numite specii\nreactive de oxigen) \u0219i a dus la formarea \u0219i diferen\u021bierea aberant\u0103 a\norganismelor embrioloide. Mai mult, nicotina a modificat circularea celulelor\n\u00eentr-o gam\u0103 larg\u0103 de celule progenitoare diferen\u021biate de hESCs. &nbsp;&nbsp;<\/p>\n\n\n\n<p>Surs\u0103: https:\/\/www.news-medical.net<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Potrivit unui studiu publicat \u00een revista on-line Cell Reports, nicotina induce efecte adverse pe scar\u0103 larg\u0103 asupra dezvolt\u0103rii embrionare umane<\/p>\n","protected":false},"author":1,"featured_media":4433,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[157,101,837,64,11,166],"tags":[2106,2105,2104,872],"_links":{"self":[{"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/posts\/4432"}],"collection":[{"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/comments?post=4432"}],"version-history":[{"count":1,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/posts\/4432\/revisions"}],"predecessor-version":[{"id":4434,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/posts\/4432\/revisions\/4434"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/media\/4433"}],"wp:attachment":[{"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/media?parent=4432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/categories?post=4432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mereusanatosi.ro\/wp\/wp-json\/wp\/v2\/tags?post=4432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}