{"id":19014,"date":"2024-02-28T22:55:57","date_gmt":"2024-02-28T22:55:57","guid":{"rendered":"https:\/\/www.africa-press.net\/guinee-conakry\/politique\/comment-le-stress-detraque-les-intestins"},"modified":"2024-02-29T00:54:35","modified_gmt":"2024-02-29T00:54:35","slug":"comment-le-stress-detraque-les-intestins","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/guinee-conakry\/toutes-les-actualites\/comment-le-stress-detraque-les-intestins","title":{"rendered":"Comment le stress d\u00e9traque les intestins"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Guin\u00e9e. <\/strong><\/span>Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0925, date\u0301 mars 2024.<\/p>\n<p>Des troubles intestinaux en situation de stress psychologique chronique ? La faute (au moins en partie) au microbiote, assure une e\u0301quipe dirige\u0301e par l\u2019Acade\u0301mie chinoise des sciences dans la revue Cell Metabolism.<\/p>\n<p>Les chercheurs ont en effet observe\u0301 chez la souris que la re\u0301ge\u0301ne\u0301ration de la paroi intestinale est tre\u0300s perturbe\u0301e en cas de stress chronique. Chose e\u0301tonnante, cette perturbation est transmissible en re\u0301alisant une greffe de microbiote intestinal de souris stresse\u0301es a\u0300 des souris non stresse\u0301es&#8230;<\/p>\n<p><b>Un dysfonctionnement lie\u0301 a\u0300 une mole\u0301cule<\/b><\/p>\n<p>Ce constat a conduit les scientifiques a\u0300 e\u0301tablir que ce dysfonctionnement est du\u0302 a\u0300 une mole\u0301cule (lindole-3-ace\u0301tique ou IAA) produite par certaines bacte\u0301ries intestinales.<\/p>\n<p>In vitro, ils ont montre\u0301 que l\u2019IAA pouvait bloquer l\u2019activite\u0301 des cellules souches et affecter ainsi la re\u0301ge\u0301ne\u0301ration des tissus intestinaux. Mais l\u2019effet peut e\u0302tre contrecarre\u0301 par l\u2019ajout d\u2019une autre mole\u0301cule, l\u2019alpha-ce\u0301toglutarate, qui stimule le me\u0301tabolisme des cellules souches. En l\u2019incluant dans l\u2019alimentation des souris stresse\u0301es, ce produit a prote\u0301ge\u0301 leur intestin.<\/p>\n<p><b>Un me\u0301canisme e\u0301galement a\u0300 l\u2019\u0153uvre chez l\u2019humain<\/b><\/p>\n<p>Selon les biologistes, ce me\u0302me me\u0301canisme serait a\u0300 l\u2019\u0153uvre chez l\u2019humain. Ils ont en effet retrouve\u0301 des concentrations plus e\u0301leve\u0301es d\u2019IAA chez des patients atteints de de\u0301pression majeure ou de troubles bipolaires, notamment chez ceux qui avaient des proble\u0300mes de constipation. Une piste pour mieux comprendre les troubles intestinaux inflammatoires lie\u0301s au stress psychologique ou a\u0300 de nombreuses maladies mentales.<\/p>\n<p>Avec, en plus, l\u2019espoir de les atte\u0301nuer par l\u2019alpha-ce\u0301toglutarate, qui est un supple\u0301ment alimentaire courant. Reste aussi a\u0300 explorer le ro\u0302le de l\u2019IAA dans l\u2019inflammation des intestins lie\u0301e a\u0300 des pathologies telles que le syndrome de l\u2019intestin irritable ou la maladie de Crohn, qui est e\u0301galement sensible au stress.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/guinee-conakry\">Guin\u00e9e<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Guin\u00e9e. Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0925, date\u0301 mars 2024. Des troubles intestinaux en situation de stress psychologique chronique ? La faute (au moins en partie) au microbiote, assure une e\u0301quipe dirige\u0301e par l\u2019Acade\u0301mie chinoise des sciences dans la revue Cell Metabolism. Les chercheurs ont en [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":19013,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,57,58],"class_list":["post-19014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-guinee","tag-guinee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Comment le stress d\u00e9traque les intestins - guinee Conakry<\/title>\n<meta name=\"description\" content=\"Cet article est extrait du mensuel Sciences et Avenir \u2013 La Recherche n\u00b0925, date\u0301 mars 2024. 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