{"id":291,"date":"2022-08-24T09:58:04","date_gmt":"2022-08-24T07:58:04","guid":{"rendered":"http:\/\/ivangavriloff.com\/?p=291"},"modified":"2022-08-24T09:58:05","modified_gmt":"2022-08-24T07:58:05","slug":"piece-31","status":"publish","type":"post","link":"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-31\/","title":{"rendered":"Pi\u00e8ce #31"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\"><a>99 % des microbes que nous avons dans le corps sont des OVNI<\/a><\/h4>\n\n\n\n<p><em>\u2013 Up magazine 2017 \u2013<\/em><\/p>\n\n\n\n<p>La connaissance scientifique progresse chaque jour. Chaque matin, nous d\u00e9couvrons une nouvelle exoplan\u00e8te, une nouvelle fa\u00e7on de produire de l\u2019\u00e9nergie, de modifier notre environnement ou d\u2019am\u00e9liorer notre sant\u00e9. Pourtant des chercheurs viennent de d\u00e9couvrir une terra incognita. Et pas des moindres puisqu\u2019elle se loge au sein m\u00eame de notre organisme, dans notre sang, dans notre microbiote. Des milliards de microorganismes nous peuplent, nous le savions d\u00e9j\u00e0, mais ce que nous ne savions pas c\u2019est que 99 % d\u2019entre eux sont des Organismes Vivants Non Identifi\u00e9s.&nbsp;<\/p>\n\n\n\n<p>C\u2019est, comme souvent, un hasard de la recherche qui a permis cette d\u00e9couverte. Des chercheurs de l\u2019universit\u00e9 de Stanford en Californie travaillaient sur le probl\u00e8me des rejets lors d\u2019une greffe d\u2019organe. D\u2019habitude, les m\u00e9decins font des biopsies intracellulaires pour d\u00e9tecter des signes de rejet. C\u2019est une m\u00e9thode intrusive et relativement imparfaite. Les chercheurs de Stanford ont donc entrepris de travailler sur des \u00e9chantillons de sang de 188 patients pour voir sir le m\u00e9lange de l\u2019ADN du donneur et du patient pouvait r\u00e9v\u00e9ler des indications d\u2019\u00e9chec ou de r\u00e9ussite de la transplantation.&nbsp; C\u2019est donc en analysant ces fragments d\u2019ADN que les chercheurs ont eu la surprise de d\u00e9couvrir que 99 % de ces \u00e9l\u00e9ments d\u2019ADN ne correspondaient \u00e0 rien de connu. Des organismes jamais identifi\u00e9s dans les bases de donn\u00e9es g\u00e9n\u00e9tiques existantes. Des fragments d\u2019ADN non-humains appartenant \u00e0 des familles de bact\u00e9ries et de virus inconnus.<\/p>\n\n\n\n<p>Nous le savons d\u00e9j\u00e0 depuis longtemps, l\u2019homme vit avec ses microbes. Il ne pourrait m\u00eame survivre sans eux. Nous avons pr\u00e8s de deux kilos de bact\u00e9ries dans le ventre, soit 100 000 milliards de microorganismes. Mais nous en avons aussi et en masse ailleurs ; ils circulent dans notre sang comme chez eux. Depuis quelques ann\u00e9es, on sait que ces microorganismes jouent un r\u00f4le majeur car non seulement ce sont des micro-usines de transformation de ce que nous mangeons, mais ils re\u00e7oivent des signaux qui modulent l\u2019immunit\u00e9, l\u2019inflammation, la r\u00e9silience des cellules. On a d\u00e9couvert que ces microorganismes influen\u00e7aient voire pilotaient nos \u00e9motions et notre psychisme.<\/p>\n\n\n\n<p>La connaissance de notre microbiome est encore r\u00e9cente mais la d\u00e9couverte des chercheurs de Stanford est un coup de tonnerre. \u00ab Nous avons trouv\u00e9 des choses compl\u00e8tement nouvelles \u00bb affime le bio-ing\u00e9nieur Stephen Quake du laboratoire Bio-X de l\u2019Universit\u00e9 de Stanford. \u00ab Gr\u00e2ce \u00e0 un s\u00e9quen\u00e7age \u00e0 haut d\u00e9bit de l\u2019ADN circulant sans cellule dans du sang, nous avons identifi\u00e9 des centaines de nouvelles bact\u00e9ries et virus qui repr\u00e9sentent des membres du microbiome qui n\u2019ont pas encore \u00e9t\u00e9 identifi\u00e9s \u00bb. Dans leur article, les chercheurs affirment que les donn\u00e9es de s\u00e9quences cumulatives recueillies sont pour une grande majorit\u00e9 \u00ab nouvelles avec peu ou pas d\u2019homologie s\u00e9quentielle dans les bases de donn\u00e9es existantes \u00bb. L\u2019\u00e9quipe de recherche poursuit : \u00ab Beaucoup d\u2019organismes repr\u00e9sentent des taxons enti\u00e8rement nouveaux, montrant que la diversit\u00e9 microbienne dans le corps humain est sensiblement plus large que pr\u00e9c\u00e9demment appr\u00e9ci\u00e9e \u00bb.<\/p>\n\n\n\n<p>Les chercheurs ont d\u00e9couvert un v\u00e9ritable bestiaire : nouvelles formes de bact\u00e9ries, de prot\u00e9obact\u00e9ries, de virus, de champignons\u2026 qui lib\u00e8rent leur ADN et leur ARN dans le sang.&nbsp; Au d\u00e9but, ils ont cru qu\u2019il s\u2019agissait de contaminants ou d\u2019artefacts. Mais non. Apr\u00e8s un grand nombre de contr\u00f4les, il s\u2019av\u00e8re que les organismes d\u00e9tect\u00e9s ne sont pas des contaminants mais bien des organismes jamais r\u00e9pertori\u00e9s.<\/p>\n\n\n\n<p>Les \u00e9quipes de Stanford ont ainsi mis le doigt sur un pan entier de la recherche qui promet des d\u00e9couvertes passionnantes. En effet, un champ immense de la m\u00e9decine pourrait \u00eatre ouvert pour classer ces nouveaux organismes, les associer \u00e0 des maladies infectieuses, par exemple, afin d\u2019\u00e9laborer de nouveaux moyens de les vaincre. Qui disait \u00ab Plus j\u2019apprends plus je m\u2019aper\u00e7ois que je ne sais pas \u00bb ?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>99 % des microbes que nous avons dans le corps sont des OVNI \u2013 Up magazine 2017 \u2013 La connaissance scientifique progresse chaque jour. Chaque matin, nous d\u00e9couvrons une nouvelle exoplan\u00e8te, une nouvelle fa\u00e7on de produire de l\u2019\u00e9nergie, de modifier notre environnement ou d\u2019am\u00e9liorer notre sant\u00e9. Pourtant des chercheurs viennent de d\u00e9couvrir une terra incognita.&hellip;&nbsp;<a href=\"https:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-31\/\" class=\"\" rel=\"bookmark\">Lire la suite &raquo;<span class=\"screen-reader-text\">Pi\u00e8ce #31<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-291","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pi\u00e8ce #31 - Ivan Gavriloff<\/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:\/\/ivangavriloff.com\/index.php\/2022\/08\/24\/piece-31\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pi\u00e8ce #31 - Ivan Gavriloff\" \/>\n<meta property=\"og:description\" content=\"99 % des microbes que nous avons dans le corps sont des OVNI \u2013 Up magazine 2017 \u2013 La connaissance scientifique progresse chaque jour. 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