{"id":10349,"date":"2016-01-14T00:00:29","date_gmt":"2016-01-13T23:00:29","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=10349"},"modified":"2016-01-12T16:45:07","modified_gmt":"2016-01-12T15:45:07","slug":"des-chercheurs-pensent-avoir-trouve-comment-nous-faire-vivre-jusqua-500-ans","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/des-chercheurs-pensent-avoir-trouve-comment-nous-faire-vivre-jusqua-500-ans\/","title":{"rendered":"Des chercheurs pensent avoir trouv\u00e9 comment nous faire vivre jusqu&rsquo;\u00e0 500 ans"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">En modifiant le m\u00e9tabolisme g\u00e9n\u00e9tique d\u2019une esp\u00e8ce de ver, des scientifiques am\u00e9ricains sont parvenus \u00e0 multiplier par cinq leur esp\u00e9rance de vie. Ils estiment que leur d\u00e9couverte pourrait permettre \u00e0 l\u2019Homme de vivre jusqu\u2019\u00e0 500 ans.<\/p>\n<p style=\"text-align: justify;\">La d\u00e9couverte a \u00e9t\u00e9 effectu\u00e9e par des chercheurs du Buck Institute for Research on Aging situ\u00e9 en Californie (\u00c9tats-Unis). Ils ont effectu\u00e9 des tests sur l\u2019esp\u00e9rance de vie du Caenorhabditis elegans, une esp\u00e8ce de ver transparent tr\u00e8s utilis\u00e9 par les biologistes car son organisme permet l\u2019\u00e9tude du vieillissement cellulaire.<\/p>\n<p style=\"text-align: justify;\">Leur \u00e9tude publi\u00e9e le 12 d\u00e9cembre dans la revue Cell Reports montre que les scientifiques ont agi sur le m\u00e9tabolisme g\u00e9n\u00e9tique des vers dans le but d\u2019augmenter leur esp\u00e9rance de vie. Ils ont bloqu\u00e9 les mol\u00e9cules qui affectaient l\u2019action de l\u2019insuline et d&rsquo;une enzyme appel\u00e9e \u00ab\u00a0cible de la rapamycine\u00a0\u00bb (mTOR). Celles-ci r\u00e9gulent la croissance, la mobilit\u00e9 et la survie cellulaire, impactant directement l\u2019esp\u00e9rance de vie. En agissant sur l\u2019enzyme, ils \u00e9taient d\u00e9j\u00e0 parvenus \u00e0 augmenter la dur\u00e9e de vie des vers de 30%. En combinant les deux blocages, le r\u00e9sultat a largement d\u00e9pass\u00e9 leurs esp\u00e9rances.<\/p>\n<p style=\"text-align: justify;\">\u00ab\u00a0Ce que nous avons obtenu, c\u2019est une augmentation de la dur\u00e9e de vie d\u2019environ cinq fois. Les deux mutations g\u00e9n\u00e9tiques ont cr\u00e9\u00e9 une boucle b\u00e9n\u00e9fique au sein de tissus sp\u00e9cifiques, amplifiant l\u2019esp\u00e9rance de vie. Ces vers ont pu vivre l\u2019\u00e9quivalent humain de 400 \u00e0 500 ans\u00a0\u00bb a expliqu\u00e9 le Docteur Pankaj Kapahi, principal auteur de l\u2019\u00e9tude. \u00ab\u00a0Il est tr\u00e8s probable que les interactions entre ces g\u00e8nes soient tr\u00e8s actives chez les personnes assez chanceuses pour vivre une longue vie en bonne sant\u00e9\u00a0\u00bb, a-t-il ajout\u00e9.<\/p>\n<p style=\"text-align: justify;\">Les scientifiques esp\u00e8rent d\u00e9sormais pouvoir renouveler l\u2019exp\u00e9rience sur des souris pour v\u00e9rifier si les m\u00eames effets se produisent sur des mammif\u00e8res. \u00ab\u00a0L\u2019id\u00e9e serait d\u2019utiliser les souris, g\u00e9n\u00e9tiquement cr\u00e9\u00e9es pour supprimer le signal de l\u2019insuline puis de les traiter avec la rapamycine, un immunosuppresseur qui annule la voie m\u00e9tabolique de la mTOR\u00a0\u00bb indique le Docteur Kapahi.<\/p>\n<p style=\"text-align: justify;\">Si les r\u00e9sultats s\u2019av\u00e8rent satisfaisants, il faudra encore patienter de nombreuses ann\u00e9es avant que des tests puissent \u00eatre men\u00e9s sur l\u2019Homme. Quoi qu\u2019il en soit, l\u2019\u00e9quipe du Buck Institute estime que ses d\u00e9couvertes pourront \u00eatre utilis\u00e9es pour mettre au point des traitements contre les maladies li\u00e9es \u00e0 la vieillesse et peut \u00eatre un jour pour accro\u00eetre notre esp\u00e9rance de vie.<\/p>\n<p style=\"text-align: justify;\">Sources : <a href=\"http:\/\/www.buckinstitute.org\/buck-news\/five-fold-lifespan-extension-c-elegans-combining-mutants\">Buck Institute<\/a>, <a href=\"http:\/\/www.medicaldaily.com\/life-span-mutant-worms-increased-500-human-years-what-does-mean-aging-therapies-264887\">Medical Daily<\/a><\/p>\n<p style=\"text-align: justify;\"><a href=\"http:\/\/www.buzznova.biz\/\" target=\"_blank\">http:\/\/www.buzznova.biz\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"10349\">(531)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>En modifiant le m\u00e9tabolisme g\u00e9n\u00e9tique d\u2019une esp\u00e8ce de ver, des scientifiques am\u00e9ricains sont parvenus \u00e0 multiplier par cinq leur esp\u00e9rance&#8230;<\/p>\n","protected":false},"author":1,"featured_media":10350,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Des chercheurs pensent avoir trouv\u00e9 comment nous faire vivre jusqu'\u00e0 500 ans @laterredufutur","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[26],"tags":[3648,5387,5388,4609,308,2519,2653],"class_list":["post-10349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-duree","tag-old","tag-rajeunissement","tag-vers","tag-vie","tag-vieillesse","tag-vieux","wpcat-26-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/ver-duree-de-vie-double.jpg?fit=704%2C365&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-2GV","jetpack-related-posts":[{"id":20426,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-dont-lesperance-de-vie-pourrait-etre-rallongee\/","url_meta":{"origin":10349,"position":0},"title":"Un monde dont l&rsquo;esp\u00e9rance de vie pourrait \u00eatre rallong\u00e9e","author":"Admin","date":"15 f\u00e9vrier 2020","format":false,"excerpt":"Des biologistes ont identifi\u00e9 des voies cellulaires prolongeant la dur\u00e9e de vie, jusqu\u2019\u00e0 500%, chez les n\u00e9matodes. Ces voies synergiques multiplient par cinq la dur\u00e9e de vie chez C. elegans, un ver souvent utilis\u00e9 comme mod\u00e8le dans la recherche sur le vieillissement. Une nouvelle \u00e9tude a mis en lumi\u00e8re une\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/01\/cellule-adn-vie.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/01\/cellule-adn-vie.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/01\/cellule-adn-vie.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/01\/cellule-adn-vie.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/01\/cellule-adn-vie.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":26169,"url":"https:\/\/www.laterredufutur.com\/accueil\/vers-un-monde-ou-lon-pourra-vivre-toujours-plus-vieux\/","url_meta":{"origin":10349,"position":1},"title":"Vers un monde o\u00f9 l&rsquo;on pourra vivre toujours plus vieux","author":"Admin","date":"25 ao\u00fbt 2024","format":false,"excerpt":"Une prot\u00e9ine appel\u00e9e interleukine 11 (IL-11) semble jouer un r\u00f4le crucial dans le vieillissement. Des scientifiques ont en effet prolong\u00e9 la dur\u00e9e de vie de souris de 25 % simplement en bloquant les effets de cette mol\u00e9cule. Dirig\u00e9e par des chercheurs de l'\u00e9cole de m\u00e9decine Duke-National University of Singapore (NUS),\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/jeune-femme-et-femme-agee.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/jeune-femme-et-femme-agee.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/jeune-femme-et-femme-agee.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/07\/jeune-femme-et-femme-agee.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7305,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-organismes-terriens-pourraient-survivre-sur-mars\/","url_meta":{"origin":10349,"position":2},"title":"Des organismes terriens pourraient survivre sur Mars","author":"Admin","date":"11 juin 2015","format":false,"excerpt":"C'est officiel, des organismes terriens pourraient survivre sur la plan\u00e8te inhospitali\u00e8re, Mars. L'environnement hostile et les derni\u00e8res informations \u00e0 propos du rover Curiosity, qui serait \u00e0 l'origine du m\u00e9thane d\u00e9tect\u00e9, rendaient difficile l'acceptation d'une possible forme de vie sur Mars. N\u00e9anmoins, une nouvelle \u00e9tude montre que certains organismes terriens pourraient\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-microbes.jpeg?fit=550%2C412&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-microbes.jpeg?fit=550%2C412&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/mars-microbes.jpeg?fit=550%2C412&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":16619,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-ou-la-vie-pourrait-etre-dorigine-extraterrestre\/","url_meta":{"origin":10349,"position":3},"title":"Un monde o\u00f9 la vie pourrait \u00eatre d&rsquo;origine extraterrestre","author":"Admin","date":"28 mai 2018","format":false,"excerpt":"Cette \u00e9tude fascinante suspecte l\u2019origine extraterrestre des pieuvres. Apparition de la majorit\u00e9 des organismes multicellulaires, diversification g\u00e9n\u00e9tique tr\u00e8s rapide\u2026 Pour les scientifiques, l\u2019explosion cambrienne est une p\u00e9riode aussi complexe que fascinante. Un groupe de chercheurs s\u2019est notamment interrog\u00e9 sur les origines de la pieuvre, une esp\u00e8ce myst\u00e9rieuse et fabuleuse. UNE\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/panspermie.jpg?fit=1200%2C683&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/panspermie.jpg?fit=1200%2C683&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/panspermie.jpg?fit=1200%2C683&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/panspermie.jpg?fit=1200%2C683&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/05\/panspermie.jpg?fit=1200%2C683&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":14973,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-qui-pourrait-rajeunir-3\/","url_meta":{"origin":10349,"position":4},"title":"Un monde qui pourrait rajeunir","author":"Admin","date":"11 avril 2017","format":false,"excerpt":"Serons-nous bient\u00f4t des Benjamin Button ? Des scientifiques ont d\u00e9couvert un traitement anti-vieillissement. Un groupe de chercheurs pensent avoir trouv\u00e9 le moyen de bloquer le vieillissement gr\u00e2ce \u00e0 un traitement qui aide les cellules \u00e0 r\u00e9parer l\u2019ADN endommag\u00e9\u2026 Benjamin Button ne sera plus une exception. Une \u00e9quipe internationale de chercheurs\u2026","rel":"","context":"Dans &quot;Monde Futur&quot;","block_context":{"text":"Monde Futur","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/monde-futur\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/vieillissement-femme-rajeunissement.jpg?fit=635%2C357&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/vieillissement-femme-rajeunissement.jpg?fit=635%2C357&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/04\/vieillissement-femme-rajeunissement.jpg?fit=635%2C357&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":6194,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-monde-ressuscite\/","url_meta":{"origin":10349,"position":5},"title":"Un Monde ressuscit\u00e9","author":"Admin","date":"28 avril 2015","format":false,"excerpt":"Nous venons de franchir un pas historique. Verrons-nous bient\u00f4t ressusciter les mammouths laineux, avec leurs d\u00e9fenses impressionnantes et leur pelage \u00e9pais\u2009? Esp\u00e8ce disparue depuis 4 000 ans, son ADN a \u00e9t\u00e9 r\u00e9cemment reconstitu\u00e9. Seulement 80 % de son g\u00e9nome avaient pu \u00eatre retrouv\u00e9s par des scientifiques en 2008. Une \u00e9tude,\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mammouth.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mammouth.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mammouth.jpeg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mammouth.jpeg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/mammouth.jpeg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=10349"}],"version-history":[{"count":3,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10349\/revisions"}],"predecessor-version":[{"id":10455,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10349\/revisions\/10455"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/10350"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=10349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=10349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=10349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}