{"id":153031,"date":"2013-03-03T00:00:00","date_gmt":"2013-03-03T00:00:00","guid":{"rendered":"https:\/\/v2.optiknow.ca\/une-proteine-qui-protege-loeil-contre-la-lumiere\/"},"modified":"2013-03-03T00:00:00","modified_gmt":"2013-03-03T00:00:00","slug":"une-proteine-qui-protege-loeil-contre-la-lumiere","status":"publish","type":"post","link":"https:\/\/v2.optiknow.ca\/fr\/2013\/03\/03\/une-proteine-qui-protege-loeil-contre-la-lumiere\/","title":{"rendered":"Une prot\u00e9ine qui prot\u00e8ge l\u0092\u009cil contre la lumi\u00e8re"},"content":{"rendered":"<p><strong><\/strong>Un chercheur en ophtalmologie et neuroscience au LSU Health Sciences Center New Orleans Neuroscience Center of Excellence a d\u00e9couvert une prot\u00e9ine qui prot\u00e8ge les cellules des photor\u00e9cepteurs r\u00e9tiniens de la d\u00e9g\u00e9n\u00e9rescence caus\u00e9e par la lumi\u00e8re.<\/p>\n<p>\u00a0<\/p>\n<p>Cette prot\u00e9ine nomm\u00e9e FATP4 (pour prot\u00e9ine de transport de l'acide gras) pourrait devenir la cible de nouveaux traitements de maladies r\u00e9tiniennes d\u00e9g\u00e9n\u00e9ratives ou de la d\u00e9g\u00e9n\u00e9rescence maculaire li\u00e9e \u00e0 l'\u00e2ge, selon l'article publi\u00e9 dans le <em>Journal of Neuroscience<\/em>.<\/p>\n<p>\u00a0<\/p>\n<p>Les chercheurs tentaient de comprendre ce qui pouvait nuire au bon fonctionnement de l'enzyme RPE65, dont les mutations ont \u00e9t\u00e9 li\u00e9es \u00e0 plusieurs pertes de vision, d\u00e9g\u00e9n\u00e9rescences r\u00e9tiniennes ou maladies causant la c\u00e9cit\u00e9. Ils ont d\u00e9couvert que la prot\u00e9ine FATP4 bloquait la RPE65.<\/p>\n<p>\u00a0<\/p>\n<p>R\u00e9cemment, des mutations dans le g\u00e8ne FATP4 ont \u00e9t\u00e9 identifi\u00e9es chez des patients souffrant de certains d\u00e9sordres r\u00e9cessifs pr\u00e9sentant un r\u00e9sidu toxique associ\u00e9 \u00e0 des cycles visuels anormaux. Ce r\u00e9sidu, l'A2E, s'accumule dans les cellules \u00e9pith\u00e9liales r\u00e9tiniennes avec l'\u00e2ge. Cela rend n\u00e9cessaire d'autres \u00e9tudes pour d\u00e9terminer si les mutations de FATP4 causent les probl\u00e8mes de vision li\u00e9s \u00e0 l'\u00e2ge et la d\u00e9g\u00e9n\u00e9rescence de la r\u00e9tine.<\/p>\n<p>\u00a0<\/p>\n<p>Source\u00a0: <a title=\"Une prot\u00e9ine qui prot\u00e8ge l'\u009cil contre la lumi\u00e8re\" href=\"http:\/\/www.sciencedaily.com\/releases\/2013\/02\/130212172207.htm\">http:\/\/www.sciencedaily.com\/releases\/2013\/02\/130212172207.htm<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un chercheur en ophtalmologie et neuroscience au LSU Health Sciences Center New Orleans Neuroscience Center of Excellence a d\u00e9couvert une prot\u00e9ine qui prot\u00e8ge les cellules des photor\u00e9cepteurs r\u00e9tiniens de la [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23133],"tags":[],"class_list":["post-153031","post","type-post","status-publish","format-standard","hentry","category-nouvelles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - 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