{"id":9003,"date":"2025-01-27T11:41:56","date_gmt":"2025-01-27T10:41:56","guid":{"rendered":"https:\/\/www.bordeaux-population-health.center\/?p=9003"},"modified":"2025-02-04T15:39:11","modified_gmt":"2025-02-04T14:39:11","slug":"9003","status":"publish","type":"post","link":"https:\/\/www.bordeaux-population-health.center\/fr\/9003\/","title":{"rendered":"Du nouveau dans la d\u00e9tection pr\u00e9coce de la maladie d&rsquo;Alzheimer"},"content":{"rendered":"<p><strong><span class=\"\">L&rsquo;\u00e9quipe de recherche <a href=\"https:\/\/www.bordeaux-population-health.center\/fr\/les-equipes\/phares\/\">PHARes <em>Recherche translationnelle en sant\u00e9 des populations<\/em><\/a> du BPH a d\u00e9velopp\u00e9 un nouvel algorithme prometteur pour aider au d\u00e9pistage pr\u00e9coce de la maladie d&rsquo;Alzheimer<\/span><span class=\"\"><span class=\"whitespace-nowrap\">.<\/span><\/span><span class=\"\">\u00a0Cette avanc\u00e9e s&rsquo;inscrit dans un contexte de recherche active sur la d\u00e9tection pr\u00e9coce de cette maladie neurod\u00e9g\u00e9n\u00e9rative.<\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9008\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme-1024x576.png\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme-1024x576.png 1024w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme-300x169.png 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme-768x432.png 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme-1536x863.png 1536w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/Algorythme.png 1546w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2 data-state=\"closed\"><\/h2>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"hover:duration-80 duration-[1000ms] mb-2 mt-6 w-fit cursor-pointer text-lg underline decoration-super\/50 decoration-1 underline-offset-[3px] transition-all first:mt-3 hover:text-super hover:decoration-super\/80 hover:underline-offset-[5px] motion-reduce:transition-none dark:decoration-superDark\/50 dark:hover:text-superDark dark:hover:decoration-superDark\/80\" data-state=\"closed\"><strong>D\u00e9veloppement de l&rsquo;algorithme et mod\u00e9lisation<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p><span class=\"\"><a href=\"mailto:lisa.le-scouarnec@u-bordeaux.fr\"><strong>Lisa Le Scouarnec<\/strong><\/a>, \u00e9pid\u00e9miologiste et biostatisticienne, doctorante dans l&rsquo;\u00e9quipe dirig\u00e9e par <strong>Carole Dufouil<\/strong> et au Centre d\u2019Investigation Clinique de Bordeaux (CIC 1401 Inserm\/CHU de Bordeaux) a utilis\u00e9 les donn\u00e9es de la <a href=\"https:\/\/host.credim.u-bordeaux.fr\/dnn-memento\/Accueil.aspx\"><strong>cohorte Memento,<\/strong><\/a> qui comprend 2 323 patients pr\u00e9sentant des troubles cognitifs l\u00e9gers<\/span><span class=\"\"><span class=\"whitespace-nowrap\">.<\/span><\/span><span class=\"\">\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9004 size-large\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-1024x486.jpg\" alt=\"\" width=\"1024\" height=\"486\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-1024x486.jpg 1024w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-300x142.jpg 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-768x365.jpg 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-1536x729.jpg 1536w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/01\/FIX-Accueil-Memento_V2-2048x972.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span class=\"\">L&rsquo;\u00e9quipe a test\u00e9<strong> six mod\u00e8les pr\u00e9dictifs s<\/strong>ur un \u00e9chantillon de <strong>853 participants<\/strong>, int\u00e9grant des donn\u00e9es sociod\u00e9mographiques, cognitives, et des marqueurs sp\u00e9cifiques de la maladie d&rsquo;Alzheimer.<\/span><\/p>\n<h2 data-state=\"closed\"><\/h2>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"hover:duration-80 duration-[1000ms] mb-2 mt-6 w-fit cursor-pointer text-lg underline decoration-super\/50 decoration-1 underline-offset-[3px] transition-all first:mt-3 hover:text-super hover:decoration-super\/80 hover:underline-offset-[5px] motion-reduce:transition-none dark:decoration-superDark\/50 dark:hover:text-superDark dark:hover:decoration-superDark\/80\" data-state=\"closed\"><strong>Les r\u00e9sultats et la validation<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p><span class=\"\">Deux mod\u00e8les se sont r\u00e9v\u00e9l\u00e9s particuli\u00e8rement efficaces pour <strong>pr\u00e9dire un seuil pathologique de d\u00e9p\u00f4ts amylo\u00efdes dans le cerveau<\/strong> :<\/span><\/p>\n<ul>\n<li><span class=\"\">Un mod\u00e8le utilisant des <strong>biomarqueurs sanguins<\/strong><\/span><\/li>\n<li><span class=\"\">Un mod\u00e8le utilisant des <strong>biomarqueurs sanguins et incluant le statut du g\u00e8ne de l\u2019apolipoprot\u00e9ine E <\/strong><\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span class=\"\">Ces mod\u00e8les ont \u00e9t\u00e9 valid\u00e9s dans une seconde cohorte, l&rsquo;<strong>Amsterdam<\/strong> <a href=\"https:\/\/www.alzheimercentrum.nl\/wetenschap\/amsterdam-dementia-cohort\/\"><strong>Dementia Cohort<\/strong><\/a>, confirmant leur pertinence et leur potentiel de g\u00e9n\u00e9ralisation.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2 data-state=\"closed\"><\/h2>\n<p>&nbsp;<\/p>\n<h1 class=\"hover:duration-80 duration-[1000ms] mb-2 mt-6 w-fit cursor-pointer text-lg underline decoration-super\/50 decoration-1 underline-offset-[3px] transition-all first:mt-3 hover:text-super hover:decoration-super\/80 hover:underline-offset-[5px] motion-reduce:transition-none dark:decoration-superDark\/50 dark:hover:text-superDark dark:hover:decoration-superDark\/80\" data-state=\"closed\"><strong>Quelles applications ?<\/strong><\/h1>\n<p>&nbsp;<\/p>\n<p><span class=\"\">Bien que moins pr\u00e9cis que les examens traditionnels (imagerie ou ponction lombaire), ce nouvel outil d&rsquo;aide \u00e0 la d\u00e9cision vise \u00e0 optimiser le diagnostic en permettant d&rsquo;<strong>\u00e9viter des examens compl\u00e9mentaires<\/strong> chez environ 30% des personnes dans une population similaire \u00e0 la cohorte Memento<\/span><span class=\"\"><span class=\"whitespace-nowrap\">.<\/span><\/span><span class=\"\">\u00a0Il offre une <strong>alternative moins invasive et plus accessible<\/strong> aux m\u00e9thodes actuelles de d\u00e9pistage.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"hover:duration-80 duration-[1000ms] mb-2 mt-6 w-fit cursor-pointer text-lg underline decoration-super\/50 decoration-1 underline-offset-[3px] transition-all first:mt-3 hover:text-super hover:decoration-super\/80 hover:underline-offset-[5px] motion-reduce:transition-none dark:decoration-superDark\/50 dark:hover:text-superDark dark:hover:decoration-superDark\/80\" data-state=\"closed\"><strong>Quelles perspectives ?<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p><span class=\"\">L&rsquo;\u00e9quipe continue d&rsquo;am\u00e9liorer les performances de cet outil en testant l&rsquo;ajout de nouveaux biomarqueurs sanguins, notamment pTau17<\/span><span class=\"\"><span class=\"whitespace-nowrap\">.<\/span><\/span><span class=\"\">\u00a0L&rsquo;objectif \u00e0 long terme est de proposer une <strong>m\u00e9thode de d\u00e9pistage facile et rapide<\/strong> \u00e0 mettre en \u0153uvre, qui pourrait remplacer les techniques actuelles plus invasives et co\u00fbteuses.<\/span><\/p>\n<p><span class=\"\">Cette avanc\u00e9e s&rsquo;inscrit dans un effort global de recherche sur la d\u00e9tection pr\u00e9coce de la maladie d&rsquo;Alzheimer, avec d&rsquo;autres \u00e9quipes travaillant sur des approches similaires utilisant l&rsquo;intelligence artificielle et l&rsquo;imagerie m\u00e9dicale.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9031\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/FIXmemento-2-300x244.jpg\" alt=\"\" width=\"515\" height=\"420\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/FIXmemento-2-300x244.jpg 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2024\/01\/FIXmemento-2.jpg 616w\" sizes=\"auto, (max-width: 515px) 100vw, 515px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>La <strong>cohorte Memento<\/strong> lanc\u00e9e en 2011 inclus des patients qui consultaient en raison d\u2019un trouble cognitif l\u00e9ger ou d\u2019une plainte cognitive subjective dans les <strong>Centres M\u00e9moire de ressources et recherche (CMRR)<\/strong>\u00a0. Ils ont accept\u00e9 d\u2019\u00eatre suivis pendant cinq ans, pour permettre aux scientifiques de rechercher chez eux des d\u00e9terminants et d\u2019\u00e9ventuels signes pr\u00e9curseurs de la maladie d\u2019Alzheimer.<\/p>\n<p>Dans ce but, un <strong>recueil homog\u00e8ne et standardis\u00e9 de donn\u00e9es sociod\u00e9mographiques, biologiques, cliniques, et d\u2019imagerie (IRM)<\/strong>, a \u00e9t\u00e9 r\u00e9alis\u00e9 pour chaque participant.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.inserm.fr\/actualite\/maladie-dalzheimer-un-nouvel-algorithme-pour-aider-a-depister-les-personnes-a-risque\/\"><strong>Lire le communiqu\u00e9 de presse de l&rsquo;Inserm<\/strong>\u00a0<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Lire l&rsquo;article<\/strong> :<\/p>\n<p>L. Le Scouarnec et coll. Development and assessment of algorithms for predicting brain amyloid positivity in a population without dementia. Alz Res Therapy, 11 octobre 2024 ; \u00a0<a class=\"wpel-icon-right\" title=\"doi:10.1186\/s13195-024\u201301595\u20115 (lien externe)\" href=\"https:\/\/doi.org\/10.1186\/s13195-024-01595-5\" target=\"_self\" rel=\"noreferrer noopener nofollow external\" data-wpel-link=\"external\">doi:10.1186\/s13195-024\u201301595\u20115<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;\u00e9quipe de recherche PHARes Recherche translationnelle en sant\u00e9 des populations du BPH a d\u00e9velopp\u00e9 un nouvel algorithme prometteur pour aider au d\u00e9pistage pr\u00e9coce de la maladie d&rsquo;Alzheimer.\u00a0Cette avanc\u00e9e s&rsquo;inscrit dans un contexte de recherche active sur la d\u00e9tection pr\u00e9coce de cette maladie neurod\u00e9g\u00e9n\u00e9rative. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; D\u00e9veloppement de l&rsquo;algorithme et mod\u00e9lisation &nbsp; [&hellip;]<\/p>\n","protected":false},"author":851,"featured_media":9004,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[25],"tags":[],"class_list":["post-9003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-revue-de-presse"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Du nouveau dans la d\u00e9tection pr\u00e9coce de la maladie d&#039;Alzheimer | Bordeaux population health<\/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.bordeaux-population-health.center\/fr\/9003\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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