{"id":11938,"date":"2025-10-17T09:55:05","date_gmt":"2025-10-17T07:55:05","guid":{"rendered":"https:\/\/www.bordeaux-population-health.center\/?p=11938"},"modified":"2026-02-06T11:20:02","modified_gmt":"2026-02-06T10:20:02","slug":"etude-alienor-clap-de-fin-1000-regards-sur-la-sante-oculaire","status":"publish","type":"post","link":"https:\/\/www.bordeaux-population-health.center\/fr\/etude-alienor-clap-de-fin-1000-regards-sur-la-sante-oculaire\/","title":{"rendered":"Etude ALIENOR, clap de fin : 1000 regards sur la sant\u00e9 oculaire"},"content":{"rendered":"<h1 style=\"text-align: center;\"><strong>Le 9 octobre 2025, \u00e0 l\u2019occasion de la Journ\u00e9e Mondiale de la Vue s\u2019est tenue la c\u00e9r\u00e9monie de cl\u00f4ture d\u2019ALIENOR, l\u2019\u00e9tude \u00e9pid\u00e9miologique de cohorte sur le vieillissement oculaire.<br \/>\nApr\u00e8s 18 ann\u00e9es de collecte et d\u2019analyse de donn\u00e9es, c\u2019est l\u2019occasion de revenir sur les grandes avanc\u00e9es permises par l\u2019\u00e9tude et celles \u00e0 venir<\/strong><\/h1>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_11944\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-11944\" class=\"wp-image-11944 size-large\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-1024x514.jpg\" alt=\"\" width=\"1024\" height=\"514\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-1024x514.jpg 1024w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-300x150.jpg 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-768x385.jpg 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-1536x770.jpg 1536w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0194-scaled-e1760596999841-2048x1027.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-11944\" class=\"wp-caption-text\">Photo de Laetitia HOUINOU : Sylvain Bouton , Laure Gayraud, Catherine Helmer, Marie Noelle Delyfer, B\u00e9n\u00e9dicte Merle, Henri Chibret, C\u00e9cile Delcourt, Cedric Schweitzer, Fran\u00e7ois SADRAN, Jean Fran\u00e7ois Korobelnik<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>L\u2019\u00e9tude <strong>ALIENOR<\/strong> est une cohorte \u00e9pid\u00e9miologique men\u00e9e aupr\u00e8s de la population g\u00e9n\u00e9rale \u00e2g\u00e9e de plus de 65 ans.<br \/>\nLes participants sont issus de la cohorte <strong>Trois-Cit\u00e9s (3C)<\/strong>, qui regroupe pr\u00e8s de<strong> 10 000 personne<\/strong>s r\u00e9parties dans trois villes fran\u00e7aises : <strong>Bordeaux, Dijon et Montpellier<\/strong>.<br \/>\n\u00c0 <strong>Bordeaux<\/strong>, 1 013 volontaires ont pris part au suivi <strong>ALIENOR<\/strong>. Tous ont pu b\u00e9n\u00e9ficier d\u2019examens ophtalmologiques tous les 2 \u00e0 3 ans, pendant une p\u00e9riode de <strong>18 ans<\/strong>, avec <strong>des techniques novatrices permettant ainsi de r\u00e9colter des donn\u00e9es \u00e0 analyser pour de nombreuses ann\u00e9es.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Les maladies li\u00e9es au vieillissement sont des maladies qui se d\u00e9veloppent au fil du temps. Afin d\u2019\u00e9tudier les diff\u00e9rentes phases de survenue et de progression des maladies, le suivi doit lui aussi s\u2019inscrire dans la dur\u00e9e. <strong>C\u2019est en cela que les \u00e9tudes de cohorte \u00e9pid\u00e9miologique de ce type sont d\u2019un grand b\u00e9n\u00e9fice pour la recherche.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_11940\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-11940\" class=\"wp-image-11940 size-large\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-1024x532.jpg\" alt=\"\" width=\"1024\" height=\"532\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-1024x532.jpg 1024w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-300x156.jpg 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-768x399.jpg 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-1536x798.jpg 1536w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0234-scaled-e1760597024980-2048x1064.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-11940\" class=\"wp-caption-text\">Photo de Laetitia HOUINOU : C\u00e9cile Delcourt, Jean Fran\u00e7ois Korobelnik, Laure Gayraud, B\u00e9n\u00e9dicte Merle<\/p><\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><em>\u00a0<\/em><\/p>\n<p>L\u2019\u00e9tude <strong>ALIENOR<\/strong> est n\u00e9e \u00e0 la suite de l\u2019\u00e9tude <strong>POLA<\/strong>, men\u00e9e<strong> \u00e0 S\u00e8te, dans l\u2019H\u00e9rault.<\/strong><br \/>\nCette pr\u00e9c\u00e9dente \u00e9tude avait mis en \u00e9vidence<strong> l\u2019importance du mode de vie dans les maladies oculaires<\/strong>, comme le tabagisme, la nutrition ou l\u2019exposition aux ultraviolets.<br \/>\n\u00c0 son arriv\u00e9e \u00e0 <strong>Bordeaux<\/strong>, <strong>C\u00e9cile Delcourt<\/strong> a souhait\u00e9 aller plus loin, avec comme objectif principal d\u2019\u00e9tudier le r\u00f4le de la <strong>nutrition<\/strong> dans la survenue des maladies oculaires, telles que <strong>la d\u00e9g\u00e9n\u00e9rescence maculaire li\u00e9e \u00e0 l\u2019\u00e2ge<\/strong> (DMLA), la <strong>cataracte<\/strong> ou le <strong>glaucome<\/strong>, sans oublier les nombreux autres <strong>facteurs g\u00e9n\u00e9tiques, le mode de vie ou les expositions environnementales.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Un objectif largement atteint avec pr\u00e8s de <strong>66 articles scientifiques, 100 communications, 8 th\u00e8ses de sciences, 13 th\u00e8ses de m\u00e9decine, une start-up fond\u00e9e par un ancien doctorant, Soufiane Ajana<\/strong>, ainsi qu\u2019une<strong> forte visibilit\u00e9 m\u00e9diatique<\/strong>, avec des parutions et reportages sur <strong>France 2, France 3, France Inter, Le Monde, Le Figaro, France Culture ou encore The Washington Post.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><strong>Mais surtout de grandes avanc\u00e9es, comme notamment :<\/strong><\/h2>\n<ul>\n<li><strong>Le r\u00f4le de l\u2019alimentation m\u00e9diterran\u00e9enne dans la progression de la DMLA,<\/strong> mis en \u00e9vidence par<strong> B\u00e9n\u00e9dicte Merle<\/strong>, avec une<strong> r\u00e9duction de 40 % du risque de progression<\/strong> chez les personnes qui suivent une alimentation de ce type, c\u2019est-\u00e0-dire riche en fruits et l\u00e9gumes, en c\u00e9r\u00e9ales, huile d\u2019olive et en poisson, avec une consommation mod\u00e9r\u00e9e de viande et de produits laitiers. B\u00e9n\u00e9dicte a \u00e9galement montr\u00e9<strong> une association avec les concentrations sanguines de plusieurs nutriments<\/strong>, comme les acides gras om\u00e9ga 3 \u00e0 longue chaine, les carot\u00e9no\u00efdes et certaines vitamines,<strong> avec la DMLA mais aussi avec le vieillissement du nerf optique<\/strong>.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>Catherine Helmer et Sara Lima Rebou\u00e7as<\/strong> se sont int\u00e9ress\u00e9es aux<strong> relations entre le vieillissement oculaire et le vieillissement c\u00e9r\u00e9bral<\/strong>, et ont mis en \u00e9vidence des associations entre les vaisseaux et les nerfs de la r\u00e9tine avec une acc\u00e9l\u00e9ration du vieillissement c\u00e9r\u00e9bral.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>L\u2019\u00e9quipe ophtalmologique<\/strong> (<strong>Jean-Fran\u00e7ois Korobelnik, Marie-No\u00eblle Delyfer et C\u00e9dric Schweitzer<\/strong>) a mis en \u00e9vidence des<strong> biomarqueurs pr\u00e9coces<\/strong>.<br \/>\nAinsi, <strong>Petra Larsen<\/strong> a publi\u00e9 en 2025 un article montrant un<strong> changement dans les couches de la r\u00e9tine en amont de la DMLA<\/strong>. Ces mesures, r\u00e9alisables gr\u00e2ce \u00e0 une technique d\u2019imagerie disponible en routine clinique, <strong>l\u2019OCT<\/strong>, pourraient permettre <strong>d\u2019identifier pr\u00e9cocement les personnes les plus \u00e0 risque de DMLA<\/strong> et de mieux comprendre les m\u00e9canismes de survenue de cette maladie.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Enfin,<strong> Laure Gayraud<\/strong> a mis en \u00e9vidence une a<strong>cc\u00e9l\u00e9ration de la perte des fibres nerveuses de la r\u00e9tine chez les personnes plus expos\u00e9es \u00e0 la pollution de l\u2019air<\/strong>. Cette perte des fibres nerveuses est une caract\u00e9ristique du <strong>glaucome<\/strong>, et ceci sugg\u00e8re donc une possible augmentation du risque de glaucome en relation avec la pollution de l\u2019air.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div id=\"attachment_11942\" style=\"width: 1034px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-11942\" class=\"wp-image-11942 size-large\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-1024x544.jpg\" alt=\"\" width=\"1024\" height=\"544\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-1024x544.jpg 1024w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-300x159.jpg 300w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-768x408.jpg 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-1536x816.jpg 1536w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/DSC0214-scaled-e1760597059207-2048x1088.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><p id=\"caption-attachment-11942\" class=\"wp-caption-text\">Photo de Laetitia HOUINOU : Pierre Hurmic, maire de Bordeaux<\/p><\/div>\n<h2><\/h2>\n<h2><\/h2>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2>Et maintenant ?<\/h2>\n<p>Si l\u2019\u00e9tude <strong>ALIENOR<\/strong> a pris fin sur le terrain en 2024, la recherche se poursuit. L\u2019\u00e9quipe dispose d\u00e9sormais d\u2019une <strong>biobanque et d\u2019une base de donn\u00e9es d\u2019une richesse exceptionnelle<\/strong>, qui continueront d\u2019alimenter de nombreux projets.<\/p>\n<p>Des collaborations sont d\u00e9j\u00e0 en cours au sein de grandes cohortes nationales comme <strong>Gazel, Constances et E3N-G\u00e9n\u00e9rations<\/strong>, mais \u00e9galement dans les programmes <strong>SHIVA<\/strong> et <strong>VBHI<\/strong>, pour approfondir les relations entre la r\u00e9tine et le cerveau.<\/p>\n<p>Enfin, en <strong>2026<\/strong>, une nouvelle \u00e9tude verra le jour : la <strong>cohorte Cl\u00e9mence<\/strong>, d\u00e9di\u00e9e \u00e0 la <strong>sant\u00e9 oculaire des enfants<\/strong>. Face \u00e0 une \u00e9pid\u00e9mie de <strong>myopie<\/strong>, qui touche d\u00e9j\u00e0 plus de 8 jeunes sur 10 dans les grandes villes asiatiques et pr\u00e8s d\u2019un jeune Europ\u00e9en sur deux, cette cohorte sera l\u2019une des rares en Europe \u00e0 explorer cette th\u00e9matique.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div style=\"color: #ee9900; font-weight: bold; display: block; margin-top: 2em;\">En savoir Plus<\/div>\n<div><\/div>\n<ul>\n<li><a href=\"https:\/\/www.linkedin.com\/feed\/update\/urn:li:activity:7384240832389771265\">Interview de C\u00e9cile Delcourt : https:\/\/www.linkedin.com\/feed\/update\/urn:li:activity:7384240832389771265\/<\/a><\/li>\n<\/ul>\n<div><\/div>\n<div><\/div>\n<ul>\n<li><a href=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2026\/02\/ALIENOR_RO_327_C2-1.pdf\">Compte rendu de la soir\u00e9e Ali\u00e9nor Clap de fin dans R\u00e9alit\u00e9s Ophtalmologiques<\/a><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13216\" src=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1-233x300.jpg\" alt=\"\" width=\"150\" height=\"193\" srcset=\"https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1-233x300.jpg 233w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1-797x1024.jpg 797w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1-768x987.jpg 768w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1-1195x1536.jpg 1195w, https:\/\/www.bordeaux-population-health.center\/wp-content\/uploads\/2025\/10\/ALIENOR_RO_327_C2-1_Page_1.jpg 1241w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/p>\n<div><\/div>\n<ul>\n<li><a href=\"https:\/\/www.alienor-study.com\/\">Site web de l&rsquo;\u00e9tude<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Le 9 octobre 2025, \u00e0 l\u2019occasion de la Journ\u00e9e Mondiale de la Vue s\u2019est tenue la c\u00e9r\u00e9monie de cl\u00f4ture d\u2019ALIENOR, l\u2019\u00e9tude \u00e9pid\u00e9miologique de cohorte sur le vieillissement oculaire. Apr\u00e8s 18 ann\u00e9es de collecte et d\u2019analyse de donn\u00e9es, c\u2019est l\u2019occasion de revenir sur les grandes avanc\u00e9es permises par l\u2019\u00e9tude et celles \u00e0 venir &nbsp; &nbsp; &nbsp; [&hellip;]<\/p>\n","protected":false},"author":1419,"featured_media":11944,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[38],"tags":[],"class_list":["post-11938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-focus-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Etude ALIENOR, clap de fin : 1000 regards sur la sant\u00e9 oculaire | Bordeaux population health<\/title>\n<meta name=\"description\" content=\"Le 9 octobre 2025, \u00e0 l\u2019occasion de la Journ\u00e9e Mondiale de la Vue s\u2019est tenue la c\u00e9r\u00e9monie de cl\u00f4ture d\u2019ALIENOR, l\u2019\u00e9tude \u00e9pid\u00e9miologique de cohorte sur le vieillissement oculaire. 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