{"id":879487,"date":"2026-04-19T16:10:45","date_gmt":"2026-04-19T16:10:45","guid":{"rendered":"https:\/\/www.europesays.com\/fr\/879487\/"},"modified":"2026-04-19T16:10:45","modified_gmt":"2026-04-19T16:10:45","slug":"les-polluants-eternels-pourraient-nuire-a-la-croissance-osseuse","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/fr\/879487\/","title":{"rendered":"Les polluants \u00e9ternels pourraient nuire \u00e0 la croissance osseuse"},"content":{"rendered":"<p>\n    Des chercheurs rapportent un lien entre des concentrations \u00e9lev\u00e9es de ces substances dans le sang et une moindre densit\u00e9 min\u00e9rale osseuse \u00e0 l\u2019adolescence.<\/p>\n<p class=\"fig-paragraph\">L\u2019<a href=\"http:\/\/sante.lefigaro.fr\/medecine\/l-adolescence-s-acheve-a-32-ans-ces-quatre-ages-ou-notre-cerveau-basculerait-20251129\" target=\"_blank\" data-fig-type=\"Article\" rel=\"noopener nofollow\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"SANTE\">adolescence<\/a>\u00a0est une p\u00e9riode critique pour la\u00a0formation des os\u00a0: environ 40\u00a0% de la masse osseuse est acquise pendant la pubert\u00e9 &#8211; autour de 12\u00a0ans chez les filles, 14\u00a0ans chez les gar\u00e7ons. Si l\u2019alimentation et\u00a0<a href=\"https:\/\/sante.lefigaro.fr\/mieux-etre\/sports-activites-physiques\/osteoporose-activite-physique\/quel-exercice\" target=\"_blank\" data-fig-type=\"Keyword\" rel=\"noopener nofollow\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"SANTE\">l\u2019activit\u00e9 physique<\/a>\u00a0contribuent \u00e0 ce processus, il est probable que l\u2019exposition \u00e0 des substances chimiques soit au contraire n\u00e9faste. C\u2019est ce que sugg\u00e8rent des chercheurs am\u00e9ricains apr\u00e8s avoir examin\u00e9 l\u2019impact de quatre Pfas (les substances per- et polyfluoroalkyl\u00e9es, connues sous le nom de\u00a0<a href=\"http:\/\/www.lefigaro.fr\/sciences\/l-anses-appelle-a-renforcer-la-surveillance-des-polluants-eternels-20251022\" target=\"_blank\" data-fig-type=\"Article\" rel=\"noopener nofollow\" data-gtm-custom-categorie=\"navigation\" data-gtm-custom-action=\"crossclick\" data-gtm-custom-label=\"Contextuel\" data-gtm-event=\"customEventSPE\" data-fig-domain=\"LEFIGARO\">polluants \u00e9ternels<\/a>) sur la croissance osseuse d\u2019enfants suivis de la naissance \u00e0 l\u2019adolescence.<\/p>\n<p class=\"fig-paragraph\">L\u2019association entre pr\u00e9sence de Pfas dans le sang et sant\u00e9 du squelette a \u00e9t\u00e9 observ\u00e9e dans quelques \u00e9tudes parues depuis dix ans. Le lien de causalit\u00e9 n\u2019y est pas d\u00e9montr\u00e9, mais deux hypoth\u00e8ses sont avanc\u00e9es pour l\u2019expliquer. Ces substances pourraient agir en se substituant \u00e0 la vitamine D qui permet la min\u00e9ralisation ou, plus indirectement, \u00ab\u00a0par des voies endocriniennes, telles que la perturbation\u2026<\/p>\n<p class=\"fig-premium-paywall__infos\">\n        Cet article est r\u00e9serv\u00e9 aux abonn\u00e9s.        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