Kada se \u0107elije pripremaju za diobu, njihov je DNA \u010dvrsto omotan oko proteina kako bi se formirali hromosomi koji pru\u017eaju strukturu genetskom materijalu. Na krajevima tih hromosoma nalaze se telomeri, koji stvaraju neku vrstu za\u0161titne strukture kako bi se sprije\u010dilo o\u0161te\u0107enje genetskog materijala.<\/p>\n
Me\u0111utim, telomeri se skra\u0107uju svaki put kada se \u0107elija podijeli. To zna\u010di da, kako starimo i kako u na\u0161em tijelu dolazi do sve ve\u0107eg broja dioba \u0107elija, telomeri postaju sve kra\u0107i i slabije \u0161tite na\u0161 DNA. O\u0161te\u0107enje genetskog materijala mo\u017ee dovesti do mutacija koje uzrokuju nekontrolisanu diobu \u0107elija, odnosno pojavu raka.<\/p>\n
Kada \u0107elije po\u010denu da li\u010de \u201czombijima\u201d, dolazi do prestanka diobe i one prolaze kroz proces koji se naziva \u0107elijsko starenje. Budu\u0107i da zapravo ne umiru, ove stare ili \u201czombi\u201d \u0107elije se tokom godina sve vi\u0161e nakupljaju u na\u0161em tijelu. Mogu biti korisne za zdravlje jer podsti\u010du starenje obli\u017enjih \u0107elija za koje postoji rizik da budu kancerogene i privla\u010de imunolo\u0161ke \u0107elije da o\u010diste stanice raka.<\/p>\n
S druge strane, ovakve \u0107elije mogu ote\u017eati zacjeljivanje tkiva i imunolo\u0161ku funkciju, te lu\u010de hemikalije koje podsti\u010du upalu i rast tumora.<\/p>\n","protected":false},"excerpt":{"rendered":"
U na\u0161em tijelu postoje “zombi” \u0107elije koje su \u017eive, ali ne rade i sve ih je vi\u0161e kako starimo, prenosi portal Index.hr.<\/p>\n","protected":false},"author":1,"featured_media":312665,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[2127],"class_list":["post-350648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-svastara","tag-zombi-celije"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/350648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=350648"}],"version-history":[{"count":1,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/350648\/revisions"}],"predecessor-version":[{"id":350649,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/350648\/revisions\/350649"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media\/312665"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=350648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=350648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=350648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}