\nTelomerii protejeaz\u0103 cromozomii \u00eempotriva deterior\u0103rii pe m\u0103sur\u0103 ce celulele se divizeaz\u0103 \u015fi cresc, dar, odat\u0103 cu \u00eenaintarea \u00een v\u00e2rst\u0103, aceste regiuni de la capetele cromozomilor devin din ce \u00een ce mai scurte \u015fi, \u00een cele din urm\u0103 nu mai pot proteja cromozomii. C\u00e2nd acest lucru se \u00eent\u00e2mpl\u0103, cromozomii se pot deteriora, iar aceasta este o parte cheie a procesului de \u00eemb\u0103tr\u00e2nire.<\/p>\n
\nCercet\u0103torii au descoperit o metod\u0103 de alungire a telomerilor, reu\u015find practic s\u0103 dea \u00eenapoi ceasul biologic \u015fi s\u0103 \u00eentinereasc\u0103 cromozomii \u015fi, astfel, \u015fi organismul care \u00eei con\u0163ine.<\/p>\n
\nCelulele care au fost tratate dup\u0103 noua procedur\u0103 se comport\u0103 ca \u015fi cum ar fi mai tinere \u015fi se \u00eenmul\u0163esc mai repede, spre desosebire de celulele netratate, a c\u0103ror rat\u0103 de \u00eenmul\u0163ire stagneaz\u0103 \u015fi ajung \u00een cele din urm\u0103 s\u0103 moar\u0103.<\/p>\n
\nNoua tehnic\u0103 ar putea fi folosit\u0103 \u00een viitor pentru tratarea pacien\u0163ilor cu boli genetice care duc la o scurtare a telomerilor mai rapid\u0103 dec\u00e2t \u00een mod normal, cum se \u00eent\u00e2mpl\u0103 \u00een cazul distrofiei musculare Duchenne. De asemenea, ar putea fi folosit\u0103 \u00een cazul unor simptome generale ale \u00eemb\u0103tr\u00e2nirii, cum sunt bolile cardiovasculare \u015fi \u00een cazul diabetului.<\/p>\n
\n“Aceast\u0103 abordare deschide calea spre prevenirea sau tratarea unor boli legate de \u00eemb\u0103tr\u00e2nire”, a declarat unul dintre cercet\u0103torii implica\u0163i \u00een studiu. “De asemenea, sunt o serie de boli genetice degenerative foarte grave asociate cu scurtarea telomerilor care ar putea fi tratate cu aceast\u0103 tehnic\u0103”,<\/strong> a mai spus cercet\u0103torul.<\/p>\n \nOamenii de \u015ftiin\u0163\u0103 sper\u0103 c\u0103 studiul va permite speciali\u015ftilor s\u0103 genereze un num\u0103r mare de celule pe care s\u0103 le studieze sau s\u0103 le foloseasc\u0103 pentru producerea de medicamente.<\/p>\n \nProcesul de alungire a telomerilor a fost descoperit de Helen Blau de la Universitatea Stanford, autorul principal al articolului \u00een care descrie procedura al\u0103turi de John Ramunas de la aceea\u015fi univeritate \u015fi Eduard Yakubov de la Houston Methodist Research Institute.<\/p>\n \n“Am reu\u015fit s\u0103 prelungim telomerii umani cu p\u00e2n\u0103 la 1.000 de nucleotide, d\u00e2nd \u00eenapoi ceasul intern cu echivalentul a mul\u0163i ani de via\u0163\u0103 uman\u0103”, a declarat Helen Blau, profesoar\u0103 de microbiologie \u015fi imunologie la Universitatea Stanford.<\/p>\n","protected":false},"excerpt":{"rendered":" Cheia pentru prelungirea vie\u0163ii ar putea sta \u00eentr-o procedur\u0103 de prelungire a telomerilor, regiunile de la cap\u0103tul cromozomilor care \u00eei protejeaz\u0103 \u00een procesul de diviziune celular\u0103 \u015fi care se scurteaz\u0103 odat\u0103 cu v\u00e2rsta, potrivit unui studiu citat de independent.co.uk.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[39413,39412,231],"class_list":["post-117436","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-cromozomi","tag-telomeri","tag-viata"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/117436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117436"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/117436\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}