{"id":60275,"date":"2021-06-14T21:00:00","date_gmt":"2021-06-14T18:00:00","guid":{"rendered":"http:\/\/life.karpat.in.ua\/?p=60275"},"modified":"2021-06-14T20:01:49","modified_gmt":"2021-06-14T17:01:49","slug":"egeszseges-egerek-szulettek-kozmikus-sugarzasnak-kitett-spermabol","status":"publish","type":"post","link":"https:\/\/life.karpat.in.ua\/?p=60275&lang=hu","title":{"rendered":"Eg\u00e9szs\u00e9ges egerek sz\u00fclettek kozmikus sug\u00e1rz\u00e1snak kitett sperm\u00e1b\u00f3l"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Eg\u00e9szs\u00e9ges ut\u00f3dok j\u00f6ttek a vil\u00e1gra csaknem hat \u00e9ven \u00e1t nagy mennyis\u00e9g\u0171 kozmikus sug\u00e1rz\u00e1snak kitett eg\u00e9rsperm\u00e1b\u00f3l &#8211; sz\u00e1moltak be eredm\u00e9nyeikr\u0151l jap\u00e1n kutat\u00f3k a Science Advances c\u00edm\u0171 foly\u00f3iratban publik\u00e1lt tanulm\u00e1nyukban.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"http:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/06\/egerek-1024x576.jpg\" alt=\"\" class=\"wp-image-60276\" srcset=\"https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/06\/egerek-1024x576.jpg 1024w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/06\/egerek-300x169.jpg 300w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/06\/egerek-768x432.jpg 768w, https:\/\/life.karpat.in.ua\/wp-content\/uploads\/2021\/06\/egerek.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A liofiliz\u00e1lt &#8211; fagyasztva sz\u00e1r\u00edtott &#8211; ond\u00f3t a Nemzetk\u00f6zi \u0170r\u00e1llom\u00e1son (ISS) t\u00e1rolt\u00e1k, majd miut\u00e1n visszahozt\u00e1k a F\u00f6ldre \u00e9s rehidrat\u00e1lt\u00e1k, 168 eg\u00e9szs\u00e9ges egeret &#8220;hoztak l\u00e9tre&#8221; bel\u0151le &#8211; olvashat\u00f3 a PhysOrg tudom\u00e1nyos-ismeretterjeszt\u0151 h\u00edrport\u00e1lon. A szakemberek szerint mindegyik eg\u00e9rk\u00f6ly\u00f6knek norm\u00e1lis k\u00fclseje volt \u00e9s a genetikai vizsg\u00e1latuk sem mutatott rendelleness\u00e9get.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A tanulm\u00e1nyt vezet\u0151 Vakajama Teruhiko, a jap\u00e1n Jamanasi Egyetem munkat\u00e1rsa \u00e9s koll\u00e9g\u00e1i h\u00e1rom t\u00e1rol\u00f3t egyenk\u00e9nt 48 ond\u00f3ampull\u00e1val k\u00fcldtek fel az ISS-re 2013-ban. A szakemberek azt vizsg\u00e1lt\u00e1k, hogy az \u0171rb\u00e9li sug\u00e1rz\u00e1snak val\u00f3 hossz\u00fa t\u00e1v\u00fa kitetts\u00e9g roncsolja-e a reprodukci\u00f3s sejtekben l\u00e9v\u0151 DNS-t \u00e9s hozz\u00e1j\u00e1rul-e a mut\u00e1ci\u00f3k \u00e1tad\u00e1s\u00e1hoz a k\u00f6vetkez\u0151 nemzed\u00e9keknek. Kilenc h\u00f3nap, majd k\u00e9t \u00e9v \u00e9s v\u00e9g\u00fcl hat \u00e9v eltelt\u00e9vel k\u00fcldtek vissza ampull\u00e1kat a F\u00f6ldre, hogy megterm\u00e9keny\u00edtsenek vel\u00fck n\u0151st\u00e9ny egereket, ami t\u00f6bb sz\u00e1z ut\u00f3d sz\u00fclet\u00e9s\u00e9t eredm\u00e9nyezte. A kutat\u00f3k szerint amikor a m\u00e1r feln\u0151tt &#8220;\u0171regerek&#8221; p\u00e1rosodtak, a k\u00f6vetkez\u0151 nemzed\u00e9k is norm\u00e1lisnak t\u0171nt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;Amikor elj\u00f6n az ideje annak, hogy m\u00e1s bolyg\u00f3kra v\u00e1ndoroljunk, fenn kell tartanunk a genetikai er\u0151forr\u00e1sok soksz\u00edn\u0171s\u00e9g\u00e9t, nem csup\u00e1n az emberek, hanem a h\u00e1zi\u00e1llatok \u00e9s a haszon\u00e1llatok eset\u00e9ben is&#8221; &#8211; \u00edrt\u00e1k a szakemberek, hozz\u00e1t\u00e9ve, hogy anyagi \u00e9s biztons\u00e1gi okokb\u00f3l val\u00f3sz\u00edn\u0171, hogy az ivarsejteket \u0171rhaj\u00f3kon t\u00e1rolva \u00e9s nem \u00e9l\u0151 \u00e1llatok r\u00e9v\u00e9n fogj\u00e1k sz\u00e1ll\u00edtani.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A szakemberek az\u00e9rt d\u00f6nt\u00f6ttek a liofiliz\u00e1lt ond\u00f3 mellett, mert az szobah\u0151m\u00e9rs\u00e9kleten t\u00e1rolhat\u00f3 \u00e9s sz\u00e1m\u00edt\u00e1saik szerint ak\u00e1r 200 \u00e9vig is el\u00e1ll az ISS fed\u00e9lzet\u00e9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1s bolyg\u00f3k megh\u00f3d\u00edt\u00e1sa a F\u00f6ld v\u00e9delmez\u0151 l\u00e9gk\u00f6r\u00e9nek \u00e9s m\u00e1gneses mezej\u00e9nek az elhagy\u00e1s\u00e1t jelenti. A m\u00e9ly\u0171r tele van a szol\u00e1ris-energikus r\u00e9szecsk\u00e9kkel \u00e9s a Naprendszeren k\u00edv\u00fcli galaktikus kozmikus sugarakkal \u00f6sszef\u00fcgg\u0151 er\u0151s sug\u00e1rz\u00e1ssal. A Napon jelentkez\u0151 flerek r\u00e9v\u00e9n olyan r\u00e9szecsk\u00e9k termel\u0151dnek, amely k\u00fcl\u00f6n\u00f6sen roncsol\u00f3 hat\u00e1ssal lehetnek az emberek eg\u00e9szs\u00e9g\u00e9re \u00e9s behatolnak a jelenlegi \u0171rhaj\u00f3kba.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A szakembereknek m\u00e9g vizsg\u00e1lniuk kell, hogy a kozmikus sug\u00e1rz\u00e1s milyen hat\u00e1ssal van a fagyasztott petesejtekre \u00e9s megterm\u00e9keny\u00edtett embri\u00f3kra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MTI<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Eg\u00e9szs\u00e9ges ut\u00f3dok j\u00f6ttek a vil\u00e1gra csaknem hat \u00e9ven \u00e1t nagy mennyis\u00e9g\u0171 kozmikus sug\u00e1rz\u00e1snak kitett eg\u00e9rsperm\u00e1b\u00f3l &#8211; sz\u00e1moltak be eredm\u00e9nyeikr\u0151l jap\u00e1n kutat\u00f3k a Science Advances c\u00edm\u0171 foly\u00f3iratban publik\u00e1lt tanulm\u00e1nyukban.<\/p>\n","protected":false},"author":10,"featured_media":60276,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,49,598],"tags":[8953,2184],"class_list":["post-60275","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cikkek","category-hirek","category-tudomany","tag-kiserletek","tag-urkutatas"],"_links":{"self":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/60275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=60275"}],"version-history":[{"count":0,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/posts\/60275\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=\/wp\/v2\/media\/60276"}],"wp:attachment":[{"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=60275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=60275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/life.karpat.in.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=60275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}