{"id":275017,"date":"2022-06-21T11:10:00","date_gmt":"2022-06-21T11:10:00","guid":{"rendered":"https:\/\/mahfoudhi.xyz\/ar\/?p=275016"},"modified":"2022-06-21T11:10:00","modified_gmt":"2022-06-21T11:10:00","slug":"etude-l-air-pollue-responsable-des-troubles-cerebraux","status":"publish","type":"post","link":"https:\/\/realites.com.tn\/fr\/etude-l-air-pollue-responsable-des-troubles-cerebraux\/","title":{"rendered":"Etude : L\u2019air pollu\u00e9, responsable des troubles c\u00e9r\u00e9braux ?"},"content":{"rendered":"<p style=\"margin-bottom: 11px; text-align: justify;\"><span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"background:white\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\">Selon une nouvelle &eacute;tude, respirer de l&#39;air pollu&eacute; pourrait entra&icirc;ner le transport de particules toxiques des poumons vers le cerveau.&nbsp;<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 11px; text-align: justify;\"><span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"background:white\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\">La recherche a &eacute;t&eacute; effectu&eacute;e par une &eacute;quipe d&#39;experts de l&#39;Universit&eacute; de Birmingham et d&#39;institutions de recherche en Chine et les r&eacute;sultats ont &eacute;t&eacute; publi&eacute;s dans une revue par Actes de l&#39;Acad&eacute;mie nationale des sciences.<\/span><\/span><\/span><\/span><br style=\"box-sizing:border-box; line-height:4.6rem; display:inline-block; font-variant-ligatures:normal; text-align:start; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial; margin-top:15px; margin-right:15px; margin-bottom:15px; margin-left:15px\" \/><br \/>\n<br \/>\n<span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\"><span style=\"background:white\">Ainsi, il a &eacute;t&eacute; prouv&eacute; que les particules toxiques voyagent via la circulation sanguine, ce qui pourrait potentiellement contribuer &agrave; des troubles c&eacute;r&eacute;braux et &agrave; des dommages neurologiques.&nbsp;Les scientifiques ont d&eacute;couvert une voie directe possible emprunt&eacute;e par diverses particules fines inhal&eacute;es.&nbsp;<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 11px; text-align: justify;\"><span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"background:white\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\">Comme mentionn&eacute;, ces toxines voyagent &agrave; travers la circulation sanguine et restent plus longtemps dans le cerveau que dans les autres organes m&eacute;taboliques principaux.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 11px; text-align: justify;\"><span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"background:white\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\">Les chercheurs ont d&eacute;couvert qu&#39;ils avaient trouv&eacute; de nombreuses particules fines dans les liquides c&eacute;phalo-rachidiens humains pr&eacute;lev&eacute;s sur des patients qui avaient rencontr&eacute; des troubles c&eacute;r&eacute;braux.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><br \/>\n<span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\"><span style=\"background:white\">Iseult Lynch, professeur co-auteur de l&#39;Universit&eacute; de Birmingham, a d&eacute;clar&eacute;&nbsp;: &quot;Il existe des lacunes dans nos connaissances sur les effets nocifs des particules fines en suspension dans l&#39;air sur le syst&egrave;me nerveux central. Ce travail jette un nouvel &eacute;clairage sur le lien entre l&#39;inhalation de particules et la fa&ccedil;on dont le cerveau r&eacute;agit face &agrave; cette exposition. Les donn&eacute;es sugg&egrave;rent que jusqu&#39;&agrave; huit fois plus de particules fines peuvent atteindre le cerveau en voyageant, via la circulation sanguine, depuis les poumons plut&ocirc;t qu&#39;en passant directement par le nez &#8211; ajoutant de nouvelles preuves sur la relation entre la pollution de l&#39;air et les effets n&eacute;fastes de ces particules sur le cerveau&quot;.<\/span><br \/>\n<span style=\"background:white\">La pollution de l&#39;air est un m&eacute;lange de nombreux composants toxiques, mais les particules fines sont les plus pr&eacute;occupantes en termes d&#39;effets n&eacute;fastes sur la sant&eacute;.&nbsp;Pire&nbsp;: Les particules ultrafines, en particulier, peuvent s&#39;&eacute;loigner des syst&egrave;mes de protection de l&#39;organisme, y compris les cellules immunitaires sentinelles et les barri&egrave;res biologiques.<\/span><br style=\"box-sizing:border-box; line-height:4.6rem; display:inline-block; font-variant-ligatures:normal; text-align:start; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial; margin-top:15px; margin-right:15px; margin-bottom:15px; margin-left:15px\" \/><br \/>\n<span style=\"background:white\">Des preuves r&eacute;centes ont &eacute;galement r&eacute;v&eacute;l&eacute; un lien &eacute;troit entre des niveaux &eacute;lev&eacute;s de pollution de l&#39;air et une neuro-inflammation marqu&eacute;e, des changements de type Alzheimer et des probl&egrave;mes cognitifs chez les personnes &acirc;g&eacute;es et les enfants.<\/span><br style=\"box-sizing:border-box; line-height:4.6rem; display:inline-block; font-variant-ligatures:normal; text-align:start; text-decoration-thickness:initial; text-decoration-style:initial; text-decoration-color:initial; margin-top:15px; margin-right:15px; margin-bottom:15px; margin-left:15px\" \/><br \/>\n<span style=\"background:white\">Le groupe de chercheurs a d&eacute;couvert que les particules inhal&eacute;es peuvent p&eacute;n&eacute;trer dans la circulation sanguine apr&egrave;s avoir travers&eacute; la barri&egrave;re air-sang, arrivant finalement au cerveau et entra&icirc;nant des dommages &agrave; la barri&egrave;re h&eacute;mato-enc&eacute;phalique et aux tissus environnants.&nbsp;Une fois dans le cerveau, les particules &eacute;taient difficiles &agrave; &eacute;liminer et &eacute;taient retenues plus longtemps que dans tout autre organe.<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 11px; text-align: right;\"><span style=\"font-size:14px;\"><span style=\"font-family:Arial,Helvetica,sans-serif;\"><span style=\"line-height:107%\"><span style=\"line-height:107%\"><span style=\"color:black\"><span style=\"letter-spacing:.4pt\"><span style=\"background:white\">L.M<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Selon une nouvelle &eacute;tude, respirer de l&#39;air pollu&eacute; pourrait entra&icirc;ner le transport de particules toxiques des poumons vers le cerveau.&nbsp; La recherche a &eacute;t&eacute; effectu&eacute;e par une &eacute;quipe d&#39;experts de&hellip;<\/p>\n","protected":false},"author":60,"featured_media":235805,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2515],"tags":[],"class_list":["post-275017","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Etude : L\u2019air pollu\u00e9, responsable des troubles c\u00e9r\u00e9braux ? 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