{"id":6383,"date":"2009-06-18T16:54:00","date_gmt":"2009-06-18T14:54:00","guid":{"rendered":"http:\/\/staging.sillon38.com\/?p=6383"},"modified":"2009-06-18T16:54:00","modified_gmt":"2009-06-18T14:54:00","slug":"pesticides-et-parkinson-linserm-confirme-le-lien","status":"publish","type":"post","link":"https:\/\/www.sillon38.com\/blog\/2009\/06\/18\/pesticides-et-parkinson-linserm-confirme-le-lien\/","title":{"rendered":"Pesticides et Parkinson: l&rsquo;INSERM confirme le lien"},"content":{"rendered":"<p>Une \u00e9quipe de chercheurs de l\u2019unit\u00e9 Inserm \u00ab Neuro\u00e9pid\u00e9miologie \u00bb et de l\u2019UPMC (Universit\u00e9 Pierre et Marie Curie) montre que l\u2019exposition aux pesticides double quasiment le risque de survenue de la maladie de Parkinson parmi les agriculteurs. Ce risque augmente avec le nombre d\u2019ann\u00e9es d\u2019exposition et, chez les hommes, est principalement li\u00e9 \u00e0 l\u2019usage d\u2019insecticides, notamment de type organochlor\u00e9.<\/p>\n<p>Ces r\u00e9sultats, qui posent \u00e9galement la question du r\u00f4le d\u2019une contamination r\u00e9siduelle de la population g\u00e9n\u00e9rale par ces pesticides, sont publi\u00e9s en ligne dans Annals of Neurology.<br \/>\nLa maladie de Parkinson est la deuxi\u00e8me maladie neuro-d\u00e9g\u00e9n\u00e9rative la plus fr\u00e9quente, apr\u00e8s la maladie d\u2019Alzheimer. On admet que, dans la plupart des cas, elle trouve son origine dans une combinaison de facteurs de risque g\u00e9n\u00e9tiques et environnementaux.<br \/>\nParmi les facteurs d\u2019environnement suspect\u00e9s, des \u00e9tudes \u00e9pid\u00e9miologiques ont montr\u00e9 une association entre la survenue de la maladie de Parkinson et une exposition professionnelle aux pesticides. Toutefois, aucune famille de pesticides n\u2019a pu \u00eatre sp\u00e9cifiquement mise en cause et le r\u00f4le du niveau d\u2019exposition n\u2019a pas \u00e9t\u00e9 \u00e9tudi\u00e9 (relation dose-effet).<\/p>\n<p style=\"margin-left: 40px;\">En collaboration avec la Mutualit\u00e9 sociale agricole (MSA), une \u00e9quipe de chercheurs de l\u2019Inserm et de l\u2019UPMC (Universit\u00e9 Pierre et Marie Curie) a \u00e9tudi\u00e9 un groupe de 224 patients atteints de maladie de Parkinson, qu\u2019ils ont compar\u00e9 \u00e0 un groupe de 557 personnes non malades, toutes affili\u00e9es \u00e0 la MSA, de m\u00eame \u00e2ge et sexe et habitant dans le m\u00eame d\u00e9partement.<\/p>\n<p>L\u2019exposition aux pesticides durant toute la vie professionnelle des participants a \u00e9t\u00e9 reconstitu\u00e9e de mani\u00e8re tr\u00e8s d\u00e9taill\u00e9e \u00e0 l\u2019occasion d\u2019entretiens avec des m\u00e9decins du travail de la MSA permettant de recueillir un grand nombre d\u2019informations telles que la surface des exploitations, le type de cultures et les pesticides utilis\u00e9s, le nombre d\u2019ann\u00e9es et la fr\u00e9quence annuelle d\u2019exposition, ou encore la m\u00e9thode d\u2019\u00e9pandage.<br \/>\nLes r\u00e9sultats montrent que les patients atteints de maladie de Parkinson avaient utilis\u00e9 plus souvent des pesticides et durant un plus grand nombre d\u2019ann\u00e9es que les t\u00e9moins ; les chercheurs ont alors estim\u00e9 que les agriculteurs expos\u00e9s aux pesticides avaient un risque presque deux fois plus \u00e9lev\u00e9 de d\u00e9velopper la maladie de Parkinson que ceux qui n\u2019en utilisaient pas.<br \/>\nParmi les principales familles de pesticides, les chercheurs ont mis en \u00e9vidence chez les hommes atteints un risque jusqu\u2019\u00e0 2,4 fois plus \u00e9lev\u00e9 que chez les t\u00e9moins pour les insecticides de type organochlor\u00e9. Cette famille de pesticides qui regroupe par exemple le lindane et le DDT a \u00e9t\u00e9 largement utilis\u00e9e en France entre les ann\u00e9es 1950 et 1990 et se caract\u00e9rise par une persistance dans l\u2019environnement de nombreuses ann\u00e9es apr\u00e8s<br \/>\nl\u2019utilisation. Les chercheurs pr\u00e9cisent toutefois qu\u2019on ne peut pas, \u00e0 partir de ces r\u00e9sultats, exclure l\u2019implication d\u2019autres types de pesticides moins fr\u00e9quemment utilis\u00e9s.<br \/>\nLes auteurs soulignent alors l\u2019importance de l\u2019\u00e9ducation des utilisateurs professionnels de pesticides \u00e0 un meilleur usage et la mise en place de mesures de protection des travailleurs<br \/>\nagricoles.<br \/>\nEnfin, au-del\u00e0 du r\u00f4le de l\u2019exposition aux pesticides \u00e0 des niveaux \u00e9lev\u00e9s en milieu professionnel, ces r\u00e9sultats soul\u00e8vent la question des cons\u00e9quences d\u2019une exposition \u00e0 plus faibles doses. Des \u00e9tudes compl\u00e9mentaires seront n\u00e9cessaires pour r\u00e9pondre \u00e0 cette question.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Une \u00e9quipe de chercheurs de l\u2019unit\u00e9 Inserm \u00ab Neuro\u00e9pid\u00e9miologie \u00bb et de l\u2019UPMC (Universit\u00e9 Pierre et Marie Curie) montre que l\u2019exposition aux pesticides double quasiment le risque de survenue de la maladie de Parkinson parmi les agriculteurs. Ce risque augmente&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[3603,3905,4247],"class_list":["post-6383","post","type-post","status-publish","format-standard","hentry","category-recherche-scientifique","tag-maladie-de-parkinson","tag-msa","tag-pesticides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pesticides et Parkinson: l&#039;INSERM confirme le lien -<\/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.sillon38.com\/blog\/2009\/06\/18\/pesticides-et-parkinson-linserm-confirme-le-lien\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pesticides et Parkinson: l&#039;INSERM confirme le lien -\" \/>\n<meta property=\"og:description\" content=\"Une \u00e9quipe de chercheurs de l\u2019unit\u00e9 Inserm \u00ab Neuro\u00e9pid\u00e9miologie \u00bb et de l\u2019UPMC (Universit\u00e9 Pierre et Marie Curie) montre que l\u2019exposition aux pesticides double quasiment le risque de survenue de la maladie de Parkinson parmi les agriculteurs. 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