{"id":37998,"date":"2026-08-07T12:08:00","date_gmt":"2026-08-07T12:08:00","guid":{"rendered":"https:\/\/dpress.ma\/fr\/?p=37998"},"modified":"2026-08-08T09:09:26","modified_gmt":"2026-08-08T09:09:26","slug":"usa-une-decouverte-dun-eminent-professeur-marocain-promet-de-revolutionner-le-depistage-dalzheimer","status":"publish","type":"post","link":"https:\/\/dpress.ma\/fr\/2026\/08\/07\/usa-une-decouverte-dun-eminent-professeur-marocain-promet-de-revolutionner-le-depistage-dalzheimer\/","title":{"rendered":"USA : Une d\u00e9couverte d\u2019un \u00e9minent professeur marocain promet de r\u00e9volutionner le d\u00e9pistage d\u2019Alzheimer"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Dpress<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une \u00e9quipe de chercheurs dirig\u00e9e par les professeurs Allal Boutajangout et Thomas Wisniewski de l\u2019Universit\u00e9 de New York (NYU) a r\u00e9alis\u00e9 une avanc\u00e9e majeure dans la lutte contre la maladie d\u2019Alzheimer, en d\u00e9montrant qu\u2019un simple test sanguin pourrait permettre d\u00e9sormais de d\u00e9tecter les premiers signes de cette maladie plusieurs ann\u00e9es avant l\u2019apparition d\u2019une d\u00e9mence cliniquement manifeste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans une interview avec la MAP, Dr. Boutajangout, professeur de neurologie et de neurosciences \u00e0 la Facult\u00e9 de m\u00e9decine de l&rsquo;Universit\u00e9 de New York et co-directeur du Centre de neurologie cognitive et de la plateforme des biomarqueurs, a expliqu\u00e9 que cette approche \u00ab\u00a0repose sur l&rsquo;analyse de biomarqueurs plasmatiques, notamment les prot\u00e9ines b\u00eata-amylo\u00efde et tau, ainsi que plusieurs biomarqueurs pro-inflammatoires et inflammatoires\u00a0\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les chercheurs ont \u00e9tudi\u00e9 trois groupes de patients, \u00e0 savoir des personnes sans troubles cognitifs (normaux), des individus souffrant d\u2019un d\u00e9clin cognitif subjectif&nbsp; &#8211; lorsqu\u2019une personne ressent des difficult\u00e9s de m\u00e9moire sans que les tests cliniques ne les d\u00e9tectent encore (SCD), et des patients pr\u00e9sentant une d\u00e9ficience cognitive bien prononc\u00e9e (MCI).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats de l&rsquo;\u00e9tude ont montr\u00e9 une forte corr\u00e9lation entre ces biomarqueurs sanguins et les d\u00e9p\u00f4ts c\u00e9r\u00e9braux d\u2019amylo\u00efde et de prot\u00e9ine tau observ\u00e9s par tomographie par \u00e9mission de positons (PET scan), et avec d&rsquo;autres biomarqueurs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats ont \u00e9galement permis d\u2019identifier, avec pr\u00e9cision, les diff\u00e9rentes phases d&rsquo;\u00e9volution de la maladie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dr. Boutajangout a soulign\u00e9 que ces biomarqueurs sont capables de r\u00e9v\u00e9ler les premiers processus pathologiques de la maladie d&rsquo;Alzheimer huit \u00e0 dix ans avant l&rsquo;apparition des premiers signes cliniques majeurs, p\u00e9riode durant laquelle les l\u00e9sions c\u00e9r\u00e9brales sont d\u00e9j\u00e0 en cours de d\u00e9veloppement, mais demeurent souvent ind\u00e9tectables par les m\u00e9thodes diagnostiques conventionnelles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette capacit\u00e9 de pr\u00e9diction pr\u00e9coce repr\u00e9sente \u00ab\u00a0une avanc\u00e9e importante vers une m\u00e9decine pr\u00e9ventive et de pr\u00e9cision, en offrant la possibilit\u00e9 d&rsquo;intervenir avant l&rsquo;installation d&rsquo;une d\u00e9mence cliniquement manifeste\u00a0\u00bb, s\u2019est f\u00e9licit\u00e9 le scientifique marocain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Selon le professeur Boutajangout, l\u2019int\u00e9gration de ces analyses sanguines dans les programmes de d\u00e9pistage pourrait \u00ab\u00a0permettre d\u2019identifier plus t\u00f4t les personnes \u00e0 risque et de donner les m\u00e9dicaments approuv\u00e9s par les autorit\u00e9s sanitaires \u00e0 chaque phase d\u2019\u00e9volution de la maladie afin de r\u00e9duire la progression des sympt\u00f4mes d\u2019Alzheimer\u00a0\u00bb, en \u00e9cartant certaines causes r\u00e9versibles de troubles cognitifs. En plus, le suivi et le contr\u00f4le de l\u2019\u00e9tat des patients seront efficaces en effectuant des analyses avec des biomarqueurs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;\u00e9quipe des professeurs Boutajangout et Wisniewski se penche aussi sur l\u2019identification des biomarqueurs chez d\u2019autres maladies neurod\u00e9g\u00e9n\u00e9ratives, a-t-il fait savoir, notant qu\u2019il s\u2019agit notamment de la maladie de Parkinson, de la d\u00e9mence fronto-temporale, du traumatisme cr\u00e2nien, des AVCs, de l\u2019autisme et de la scl\u00e9rose lat\u00e9rale amyotrophique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Selon le Dr. Boutajangout, cette strat\u00e9gie diagnostique pr\u00e9sente \u00e9galement un \u00ab\u00a0avantage \u00e9conomique majeur\u00a0\u00bb. Contrairement aux examens d&rsquo;imagerie c\u00e9r\u00e9brale avanc\u00e9e, tels que le PET scan, ou \u00e0 l&rsquo;analyse du liquide c\u00e9phalo-rachidien obtenue par ponction lombaire, \u00ab\u00a0qui sont co\u00fbteux, invasifs et peu accessibles \u00e0 grande \u00e9chelle\u201d, le test sanguin est simple \u00e0 r\u00e9aliser, moins on\u00e9reux, rapidement interpr\u00e9table et plus facilement d\u00e9ployable dans les programmes de d\u00e9pistage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il pourrait ainsi constituer un \u00ab\u00a0examen de premi\u00e8re intention, les investigations plus complexes \u00e9tant r\u00e9serv\u00e9es \u00e0 la confirmation des cas suspects\u00a0\u00bb, a-t-il conclu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dpress Une \u00e9quipe de chercheurs dirig\u00e9e par les professeurs Allal Boutajangout et Thomas Wisniewski de l\u2019Universit\u00e9 de New York (NYU) a r\u00e9alis\u00e9 une avanc\u00e9e majeure dans la lutte contre la maladie d\u2019Alzheimer, en d\u00e9montrant qu\u2019un simple test sanguin pourrait permettre d\u00e9sormais de d\u00e9tecter les premiers signes de cette maladie plusieurs ann\u00e9es avant l\u2019apparition d\u2019une d\u00e9mence &hellip;<\/p>\n","protected":false},"author":2,"featured_media":37999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-37998","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace-marocain-du-monde"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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