{"id":64007,"date":"2024-12-21T12:00:00","date_gmt":"2024-12-21T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/consommer-du-cannabis-enceinte-predispose-le-cerveau-du-bebe-a-laddiction-aux-opiaces"},"modified":"2024-12-21T12:00:00","modified_gmt":"2024-12-21T12:00:00","slug":"consommer-du-cannabis-enceinte-predispose-le-cerveau-du-bebe-a-laddiction-aux-opiaces","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/consommer-du-cannabis-enceinte-predispose-le-cerveau-du-bebe-a-laddiction-aux-opiaces","title":{"rendered":"Consommer du cannabis enceinte pr\u00e9dispose le cerveau du b\u00e9b\u00e9 \u00e0 l\u2019addiction aux opiac\u00e9s"},"content":{"rendered":"

Africa-Press – Senegal. <\/strong><\/span>L\u2019exposition in utero au cannabis pre\u0301dispose les adolescents et jeunes hommes a\u0300 se droguer par un me\u0301canisme qu\u2019une e\u0301tude ame\u0301ricaine vient de mettre en e\u0301vidence chez le rat. Chez une personne devenue de\u0301pendante a\u0300 une drogue telle que la morphine, le de\u0301sir de consommer le produit est irre\u0301pressible. Le moindre indice lie\u0301 a\u0300 cette consommation de\u0301clenche une recherche de la drogue pour atte\u0301nuer la sensation de manque.<\/p>\n

C\u2019est cette impulsivite\u0301 qui a e\u0301te\u0301 retrouve\u0301e chez des rats expose\u0301s in utero au THC, le compose\u0301 psychoactif du cannabis. Les animaux re\u0301pondaient beaucoup plus longtemps aux indices d\u2019une re\u0301compense alimentaire et pre\u0301sentaient une suractivation des neurones de la motivation, ceux qui libe\u0300rent la dopamine dans le cerveau. Ce comportement ne de\u0301coulait pas d\u2019une pre\u0301fe\u0301rence accrue pour la nourriture propose\u0301e chez les rats expose\u0301s in utero.<\/p>\n

Une vulne\u0301rabilite\u0301 masculine a\u0300 l\u2019addiction<\/b><\/p>\n

Ces animaux ont pre\u0301sente\u0301 le me\u0302me comportement lorsqu\u2019ils ont e\u0301te\u0301 habitue\u0301s a\u0300 consommer une drogue telle que le fentanyl, analogue ille\u0301gal de la morphine tre\u0300s utilise\u0301 aux E\u0301tats-Unis. Les rongeurs e\u0301taient la\u0300 encore beaucoup plus motive\u0301s pour s\u2019administrer la drogue et la re\u0301clamer au moindre indice d\u2019une possibilite\u0301 de la consommer, plus fortement encore que pour une re\u0301compense alimentaire. Cette conse\u0301quence sur le comportement de l\u2019exposition au THC in utero ne concernait que les rats ma\u0302les, pre\u0301cisent les chercheurs de l\u2019E\u0301cole de me\u0301decine de l\u2019universite\u0301 de Baltimore (Etats-Unis). Une vulne\u0301rabilite\u0301 lie\u0301e au sexe de\u0301ja\u0300 observe\u0301e dans les e\u0301tudes e\u0301pide\u0301miologiques.<\/p>\n

Aux E\u0301tats-Unis, une libe\u0301ralisation de la consommation de cannabis<\/b><\/p>\n

Pour les auteurs de l\u2019e\u0301tude publie\u0301e dans la revue Science Advances, cette diffe\u0301rence entre les sexes reste inexplique\u0301e mais confirme la pertinence de leur mode\u0300le animal pour mieux comprendre comment l\u2019exposition au THC in utero affecte le de\u0301veloppement ce\u0301re\u0301bral humain. Aux E\u0301tats-Unis, la libe\u0301ralisation de la consommation de cannabis s\u2019est accompagne\u0301e d\u2019une forte augmentation du nombre de femmes enceintes qui consomment la drogue dans l\u2019espoir de soulager ou d\u2019e\u0301viter des nause\u0301es et vomissements. Cette utilisation, incite\u0301e par des publicite\u0301s mensonge\u0300res, risque de rendre une ge\u0301ne\u0301ration de jeunes hommes expose\u0301s beaucoup plus impulsifs et de\u0301pendants aux drogues, dont les opiace\u0301s.<\/p>\n

Pour plus d’informations et d’analyses sur la Senegal<\/span>, suivez Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Senegal. L\u2019exposition in utero au cannabis pre\u0301dispose les adolescents et jeunes hommes a\u0300 se droguer par un me\u0301canisme qu\u2019une e\u0301tude ame\u0301ricaine vient de mettre en e\u0301vidence chez le rat. Chez une personne devenue de\u0301pendante a\u0300 une drogue telle que la morphine, le de\u0301sir de consommer le produit est irre\u0301pressible. Le moindre indice lie\u0301 […]<\/p>\n","protected":false},"author":82,"featured_media":64006,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-64007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"\nConsommer du cannabis enceinte pr\u00e9dispose le cerveau du b\u00e9b\u00e9 \u00e0 l\u2019addiction aux opiac\u00e9s - Senegal<\/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:\/\/www.africa-press.net\/senegal\/politique\/consommer-du-cannabis-enceinte-predispose-le-cerveau-du-bebe-a-laddiction-aux-opiaces\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Consommer du cannabis enceinte pr\u00e9dispose le cerveau du b\u00e9b\u00e9 \u00e0 l\u2019addiction aux opiac\u00e9s\" \/>\n<meta property=\"og:description\" content=\"Africa-Press – Senegal. 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