{"id":6913,"date":"2025-05-31T07:56:09","date_gmt":"2025-05-31T05:56:09","guid":{"rendered":"https:\/\/rvh-synergie.org\/actualites\/de-multiples-variantes-genetiques-pourraient-predire-qui-beneficie-de-la-toxicomanie-de-lalcool\/"},"modified":"2025-05-31T07:56:11","modified_gmt":"2025-05-31T05:56:11","slug":"de-multiples-variantes-genetiques-pourraient-predire-qui-beneficie-de-la-toxicomanie-de-lalcool","status":"publish","type":"post","link":"https:\/\/rvh-synergie.org\/actualites\/de-multiples-variantes-genetiques-pourraient-predire-qui-beneficie-de-la-toxicomanie-de-lalcool\/","title":{"rendered":"De multiples variantes g\u00e9n\u00e9tiques pourraient pr\u00e9dire qui b\u00e9n\u00e9ficie de la toxicomanie de l&rsquo;alcool"},"content":{"rendered":"<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2025\/measures-of-multiple-g.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2025\/measures-of-multiple-g.jpg\" data-sub-html=\"In a secondary analysis of data from two randomized controlled trials of topiramate in 285 individuals with alcohol use disorder (AUD), measures of genetic risk for problematic alcohol use (PAU) and time to relapse to any drinking (TR) and heavy drinking (THR) significantly moderated topiramate's effect on alcohol-related problems. These findings support the use of alcohol-related polygenic scores as moderators of the effects of topiramate for treating AUD and support the need for larger studies that use this approach. Credit: &lt;i&gt;Alcohol, Clinical and Experimental Research&lt;\/i&gt; (2025). DOI: 10.1111\/acer.70052\">\n<figure class=\"article-img\">\n<\/figure><\/div>\n<\/div>\n<p>Les variantes g\u00e9n\u00e9tiques li\u00e9es \u00e0 l&rsquo;alcool influencent les effets d&rsquo;un m\u00e9dicament pour traiter le trouble de la consommation d&rsquo;alcool (AUD), selon une \u00e9tude innovante. Les r\u00e9sultats indiquent des opportunit\u00e9s de nouvelles approches de recherche et des traitements personnalis\u00e9s pour les patients.<\/p>\n<p>Les m\u00e9dicaments sont sous-utilis\u00e9s dans le traitement de l&rsquo;AUD, prescrits \u00e0 seulement 2% des patients diagnostiqu\u00e9s avec le trouble en 2022. Le m\u00e9dicament se termine, lorsqu&rsquo;il est utilis\u00e9 hors AMD pour traiter l&rsquo;AUD, a \u00e9t\u00e9 d\u00e9montr\u00e9 dans les essais pour r\u00e9duire les jours de consommation lourds et les probl\u00e8mes li\u00e9s \u00e0 l&rsquo;alcool.<\/p>\n<p>Les enqu\u00eateurs de l&rsquo;Universit\u00e9 de Pennsylvanie et de Yale explorent si les variantes g\u00e9n\u00e9tiques associ\u00e9es \u00e0 l&rsquo;AUD influencent l&rsquo;efficacit\u00e9 du topiramate. Bien qu&rsquo;auparavant, ils aient trouv\u00e9 des effets d&rsquo;une seule variante g\u00e9n\u00e9tique, les \u00e9tudes ult\u00e9rieures n&rsquo;ont pas soutenu un effet mod\u00e9rateur de la variante sur les r\u00e9sultats du traitement.<\/p>\n<p>Pour la nouvelle \u00e9tude dans <i>Alcool: recherche clinique et exp\u00e9rimentale<\/i>ils ont examin\u00e9 si des mesures plus compl\u00e8tes du risque g\u00e9n\u00e9tique, appel\u00e9es scores polyg\u00e9niques, pourraient aider \u00e0 pr\u00e9dire les effets du topiramate. Des scores polyg\u00e9niques ont d\u00e9j\u00e0 \u00e9t\u00e9 utilis\u00e9s pour aider \u00e0 identifier les troubles de la consommation de substances.<\/p>\n<p>Les chercheurs ont travaill\u00e9 avec des donn\u00e9es de 285 patients d&rsquo;origine europ\u00e9enne avec AUD qui ont \u00e9t\u00e9 trait\u00e9s avec le topiramate ou le placebo. Tous les patients ont subi des tests g\u00e9n\u00e9tiques.<\/p>\n<p>Les chercheurs ont utilis\u00e9 de grandes bases de donn\u00e9es g\u00e9n\u00e9tiques existantes de personnes d&rsquo;ascendance europ\u00e9enne pour cr\u00e9er des scores polyg\u00e9niques qui r\u00e9sumaient les effets de multiples variantes g\u00e9n\u00e9tiques li\u00e9es \u00e0 quatre traits li\u00e9s \u00e0 l&rsquo;alcool: consommation probl\u00e9matique d&rsquo;alcool (PAU), consommation d&rsquo;alcool (DPW), temps de rechute apr\u00e8s le traitement (TR) et temps pour relasser \u00e0 la consommation \u00e9lev\u00e9e (THR).<\/p>\n<p>En utilisant une analyse statistique, les auteurs ont explor\u00e9 le lien entre ces mesures du risque g\u00e9n\u00e9tique et l&rsquo;efficacit\u00e9 du topiramate dans la r\u00e9duction des jours de consommation lourde et des probl\u00e8mes li\u00e9s \u00e0 l&rsquo;alcool.<\/p>\n<p>Ils ont constat\u00e9 que le topiramate r\u00e9duisait \u00e0 la fois les probl\u00e8mes li\u00e9s \u00e0 l&rsquo;alcool et les fortes jours de consommation d&rsquo;alcool plus que le placebo. Les effets du traitement sur les probl\u00e8mes li\u00e9s \u00e0 l&rsquo;alcool \u00e9taient significativement li\u00e9s \u00e0 trois scores polyg\u00e9niques (Pau, TR et THR). Les patients pr\u00e9sentant des scores polyg\u00e9niques plus \u00e9lev\u00e9s ont connu des effets plus importants du traitement au topiramate sur la r\u00e9duction des probl\u00e8mes li\u00e9s \u00e0 l&rsquo;alcool que les patients \u00e0 risque g\u00e9n\u00e9tique plus faible.<\/p>\n<p>L&rsquo;\u00e9tude fournit des preuves suppl\u00e9mentaires que le risque g\u00e9n\u00e9tique peut mod\u00e9rer les effets des m\u00e9dicaments AUD et potentiellement aider \u00e0 jumeler les patients aux traitements les plus susceptibles de leur b\u00e9n\u00e9ficier. Il met \u00e9galement en \u00e9vidence les scores polyg\u00e9niques comme alternative aux variantes g\u00e9n\u00e9tiques uniques pour \u00e9tudier les interactions entre la g\u00e9n\u00e9tique et les m\u00e9dicaments dans le traitement de l&rsquo;AUD.<\/p>\n<p>\u00c9tant donn\u00e9 que la r\u00e9ponse au traitement est complexe, influenc\u00e9e par de nombreuses variantes g\u00e9n\u00e9tiques de petits effets, les scores polyg\u00e9niques peuvent \u00eatre particuli\u00e8rement utiles pour r\u00e9v\u00e9ler les effets mod\u00e9rateurs des diff\u00e9rences g\u00e9n\u00e9tiques entre les patients.<\/p>\n<p>                                        <!-- print only --><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les variantes g\u00e9n\u00e9tiques li\u00e9es \u00e0 l&rsquo;alcool influencent les effets d&rsquo;un m\u00e9dicament pour traiter le trouble<\/p>\n","protected":false},"author":1,"featured_media":6914,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[5506,675,6,4238,610,799,193,380,2367],"class_list":["post-6913","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-addictions","tag-beneficie","tag-genetiques","tag-lalcool","tag-multiples","tag-pourraient","tag-predire","tag-qui","tag-toxicomanie","tag-variantes","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - 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