{"id":713,"date":"2012-07-11T07:56:00","date_gmt":"2012-07-11T05:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_wonder_of_weightless_worms\/"},"modified":"2026-10-08T00:31:27","modified_gmt":"2026-10-07T22:31:27","slug":"the_wonder_of_weightless_worms","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/the_wonder_of_weightless_worms\/","title":{"rendered":"Det forunderlige ved v\u00e6gtl\u00f8se orme"},"content":{"rendered":"
\n

Mange forskellige v\u00e6sener har v\u00e6ret i rummet sammen med astronauterne. Ligesom mennesker har de fleste af dem sv\u00e6rt ved at tilpasse sig v\u00e6gtl\u00f8sheden. En undtagelse er en lille orm, kendt som C. elegans, som tilsyneladende klarer sig bedre i kredsl\u00f8b end p\u00e5 Jorden.<\/p>\n<\/div>\n

Da ESA-astronauten Andr\u00e9 Kuipers f\u00f8rste gang tog til Den Internationale Rumstation (ISS) i 2004, blev C. elegans udvalgt til at f\u00f8lge med ham. De mikroskopiske orme blev valgt, fordi de var den f\u00f8rste komplekse livsform, hvor alle generne (byggestenene i kroppens celler) var kortlagt.<\/p>\n

Efterf\u00f8lgende konstaterede forskerne, at syv af ormenes gener var mindre aktive i rummet. Overraskende nok syntes ormene at fungere bedre uden disse gener. Resultaterne tydede p\u00e5, at deres muskler tilpassede sig forholdene i rummet. Kunne rumfart m\u00e5ske bremse musklernes aldringsproces?<\/p>\n

\"I>C.
C. elegans<\/i><\/figcaption><\/figure>\n

Laboratoriefors\u00f8g bekr\u00e6ftede, at andre orme, der var opdr\u00e6ttet uden de syv gener, ogs\u00e5 levede l\u00e6ngere og sundere liv. Da mennesker deler omkring 55% af deres gener med C. elegans, var det n\u00e6ste skridt at finde ud af, hvordan menneskets muskler reagerer p\u00e5 rumfart.<\/p>\n

Under sin anden mission p\u00e5 ISS, der sluttede den 1. juli, medbragte Andr\u00e9 flere orme til en opf\u00f8lgende unders\u00f8gelse. Men denne gang blev astronauten ogs\u00e5 selv unders\u00f8gt. Inden missionens start blev der udtaget et lille stykke muskel fra et af hans ben og opbevaret til analyse. Forskerne er nu sp\u00e6ndte p\u00e5 at finde ud af, hvordan denne pr\u00f8ve adskiller sig fra de muskler, der har tilbragt seks m\u00e5neder i v\u00e6gtl\u00f8shed. Men i mods\u00e6tning til ormene f\u00e5r Andr\u00e9 lov til at bruge et par uger p\u00e5 at komme sig efter sin udmattende rejse, f\u00f8r hans muskler kommer under mikroskopet.<\/p>","protected":false},"excerpt":{"rendered":"

Many different creatures have joined astronauts in space. Like people, most of them find it hard to adapt to weightlessness. One exception is a tiny worm, known as C. elegans, […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/07\/nematode_worm2\/17911232-2-eng-GB\/Nematode_worm.gif","esa_banner_description":"Nematode worm","esa_banner_credit":"Creative Commons ShareAlike license\u2013B. Goldstein","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/07\/Nematode_worm2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,13,63],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-713","post","type-post","status-publish","format-standard","hentry","category-learn","category-life-in-space","category-living-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=713"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/713\/revisions"}],"predecessor-version":[{"id":4643,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/713\/revisions\/4643"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=713"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=713"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=713"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=713"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=713"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=713"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=713"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}