{"id":382216,"date":"2018-12-05T08:06:42","date_gmt":"2018-12-05T07:06:42","guid":{"rendered":"https:\/\/hudo.com\/si\/2018\/12\/05\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/"},"modified":"2018-12-05T08:06:42","modified_gmt":"2018-12-05T07:06:42","slug":"starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh","status":"publish","type":"post","link":"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/","title":{"rendered":"Starodavne \u017eelve velikanke nam pomagajo razumeti procese staranja pri ljudeh"},"content":{"rendered":"<figure>\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"660\" height=\"320\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/moski.hudo.com\/wp-content\/uploads\/2018\/12\/profimedia-0215991427-320x155.jpg\" data-srcset=\"https:\/\/moski.hudo.com\/wp-content\/uploads\/2018\/12\/profimedia-0215991427-660x320.jpg 660w,https:\/\/moski.hudo.com\/wp-content\/uploads\/2018\/12\/profimedia-0215991427-320x155.jpg 330w\" sizes=\"(max-width: 660px) 100vw, 660px\"\/><figcaption>foto:Profimedia<\/figcaption><\/figure>\n<p>Znanstveniki so prou\u010devali genoma dveh \u017eelv, med drugim Osamljenega Jurija, ki je bil zadnji znani primerek vrste Chelonoidis abingdonii. Poginil je leta 2012 v ujetni\u0161tvu na otoku Santa Cruz, star pa je bil med 120 in 130 let.<\/p>\n<h2>Skrivnost dolgega \u017eivljenja<\/h2>\n<p>&#8220;\u017delve velikanke smo izbrali, ker so ene najdlje \u017eive\u010dih \u017eivali in so verjetno razvile tudi nekatere genske mehanizme za zmanj\u0161anje tveganja za razvoj raka,&#8221; je povedal eden od soavtorjev \u0161tudije z avstralske univerze Flinders Luciano Beheregaray. &#8220;Zato so izvrsten model za prou\u010devanje dolgega \u017eivljenja in s starostjo povezanih bolezni,&#8221; je dodal, kot pi\u0161e na spletni strani univerze.<\/p>\n<p>Prou\u010dili so ve\u010d kot 3000 genov, v genomih pa so na\u0161li ve\u010d variant, ki bi lahko vplivale na \u0161est od devetih znakov staranja. Prav tako so na\u0161li gene, ki bi bili lahko povezani z rakom pri \u010dloveku.<\/p>\n<p>&#8220;Ve\u010d teh genov je pri \u010dloveku zapisanih samo enkrat, pri \u017eelvah velikankah pa so nekateri podvojeni, nekateri celo potrojeni,&#8221; je dejal Beheregaray. &#8220;Vemo, da podvojitev genov deluje na njihovo delovanje,&#8221; je pojasnil. Ravno te podvojitve bi lahko vplivale tudi na sposobnost \u017eelv velikank, da zelo dolgo \u017eivijo. To bodo ugotavljali v prihodnjih raziskavah.<\/p>\n<p>\u017delve velikanke sicer niso povsem odporne na raka, vendar pa je raven te bolezni pri njih zelo nizka. Kot je pojasnil profesor z avstralske univerze, je rak posledica te\u017eav med celi\u010dno delitvijo. Napake najverjetneje povzro\u010da DNK. \u017delve velikanke so torej morda razvile mehanizem za prepre\u010devanje tega.<\/p>\n<p>Znanstveniki upajo, da bodo te ugotovitve izbolj\u0161ale razumevanje staranja in raka pri ljudeh. \u010clovek in \u017eelve velikanke imajo namre\u010d enake ve\u010d kot 90 odstotkov DNK.<\/p>\n<p>Bodo pa te ugotovitve prispevale tudi k prizadevanjem za obnovitev populacij teh \u017eelv na Galapa\u0161kem oto\u010dju, je povedal direktor galapa\u0161kega nacionalnega parka Jorge Carrion.<\/p>\n<p>Na tem ekvadorskem oto\u010dju, znanem po edinstveni favni in flori, sicer \u017eivi med 30.000 in 40.000 \u017eelv, ki pripadajo 12 razli\u010dnim vrstam. Nekatere so velike do 1,80 metra, do\u010dakajo pa lahko tudi do 180 let, navaja francoska tiskovna agencija AFP.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pri galapa\u0161kih \u017eelvah velikankah, ki so znane po dolgo\u017eivosti, so znanstveniki na\u0161li genske variante, povezane s staranjem in rakom. Ugotovitve bi lahko prispevale tudi k razumevanju staranja in raka pri ljudeh, saj imata \u010dlovek in \u017eelva velikanka 90 odstotkov enake genske zasnove.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1385,10636,1645],"source":[1549,1518],"supertag":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Starodavne \u017eelve velikanke nam pomagajo razumeti procese staranja pri ljudeh - Hudo Slovenija<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Starodavne \u017eelve velikanke nam pomagajo razumeti procese staranja pri ljudeh - Hudo Slovenija\" \/>\n<meta property=\"og:description\" content=\"Pri galapa\u0161kih \u017eelvah velikankah, ki so znane po dolgo\u017eivosti, so znanstveniki na\u0161li genske variante, povezane s staranjem in rakom. Ugotovitve bi lahko prispevale tudi k razumevanju staranja in raka pri ljudeh, saj imata \u010dlovek in \u017eelva velikanka 90 odstotkov enake genske zasnove.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/\" \/>\n<meta property=\"og:site_name\" content=\"Hudo Slovenija\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/hudo.si\" \/>\n<meta property=\"article:published_time\" content=\"2018-12-05T07:06:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hudo.com\/si\/wp-content\/uploads\/sites\/2\/2018\/12\/profimedia-0215991427.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1250\" \/>\n\t<meta property=\"og:image:height\" content=\"831\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"hudo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:site\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hudo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/\"},\"author\":{\"name\":\"hudo\",\"@id\":\"https:\/\/hudo.com\/si\/#\/schema\/person\/601cf3379633985b20f7e50f2bb47707\"},\"headline\":\"Starodavne \u017eelve velikanke nam pomagajo razumeti procese staranja pri ljudeh\",\"datePublished\":\"2018-12-05T07:06:42+00:00\",\"dateModified\":\"2018-12-05T07:06:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/hudo.com\/si\/zdrav-duh-telo\/starodavne-zelve-velikanke-nam-pomagajo-razumeti-procese-staranja-pri-ljudeh\/\"},\"wordCount\":345,\"publisher\":{\"@id\":\"https:\/\/hudo.com\/si\/#organization\"},\"keywords\":[\"staranje\",\"\u017eelva\",\"znanstvene zanimivosti\"],\"articleSection\":[\"Zdrav duh &amp; 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