{"id":69028,"date":"2023-08-12T11:45:48","date_gmt":"2023-08-12T11:45:48","guid":{"rendered":"https:\/\/www.pharmacie-vezere.com\/promotions\/?p=69028"},"modified":"2023-08-12T12:11:14","modified_gmt":"2023-08-12T12:11:14","slug":"la-danse-intricat%d0%b5-entre-allergies-systeme-immunitaire-et-comportement","status":"publish","type":"post","link":"https:\/\/www.pharmacie-vezere.com\/promotions\/la-danse-intricat%d0%b5-entre-allergies-systeme-immunitaire-et-comportement\/","title":{"rendered":"La Danse Intricat\u0435 Entre Allergies, Syst\u00e8me Immunitaire et Comportement"},"content":{"rendered":"\n<p><strong>La simple odeur des fruits de mer, inoffensive pour la plupart des gens, peut provoquer une maladie violente chez ceux qui souffrent d&#8217;allergies aux fruits de mer, les poussant \u00e0 \u00e9viter sa pr\u00e9sence avec d\u00e9termination. Un sch\u00e9ma similaire se manifeste chez les individus qui endurent une intoxication alimentaire, o\u00f9 ils s&#8217;abstiennent \u00e9galement du repas qui a d\u00e9clench\u00e9 la r\u00e9action. Alors que le r\u00f4le du syst\u00e8me immunitaire dans la r\u00e9ponse aux allerg\u00e8nes et aux agents pathog\u00e8nes est bien document\u00e9, une perc\u00e9e r\u00e9cente sugg\u00e8re qu&#8217;il orchestre \u00e9galement ces r\u00e9ponses comportementales envers les d\u00e9clencheurs allergiques.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2023\/08\/2023-08-12T150309.668.jpg\" alt=\"\" class=\"wp-image-69029\" width=\"628\" height=\"352\" srcset=\"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2023\/08\/2023-08-12T150309.668.jpg 300w, https:\/\/www.pharmacie-vezere.com\/promotions\/wp-content\/uploads\/2023\/08\/2023-08-12T150309.668-200x112.jpg 200w\" sizes=\"auto, (max-width: 628px) 100vw, 628px\" \/><\/figure>\n\n\n\n<p>Une \u00e9tude r\u00e9volutionnaire dirig\u00e9e par des chercheurs de l&#8217;Universit\u00e9 Yale, d\u00e9voil\u00e9e dans la revue Nature le 12 juillet, met en lumi\u00e8re le r\u00f4le central du syst\u00e8me immunitaire dans la formation de nos comportements. L&#8217;\u00e9tude, dirig\u00e9e par Ruslan Medzhitov, professeur Sterling d&#8217;immunobiologie \u00e0 l&#8217;\u00c9cole de m\u00e9decine de Yale, d\u00e9voile les connexions complexes entre la reconnaissance immunitaire, les comportements d\u00e9fensifs et la communication entre les anticorps et notre cerveau.<\/p>\n\n\n\n<p>Medzhitov, \u00e9galement chercheur \u00e0 l&#8217;Institut m\u00e9dical Howard Hughes, souligne : &#8220;Nous constatons que la reconnaissance immunitaire contr\u00f4le le comportement, en particulier les comportements d\u00e9fensifs contre les toxines qui sont d&#8217;abord communiqu\u00e9es par les anticorps, puis par notre cerveau.&#8221;<\/p>\n\n\n\n<p>L&#8217;\u00e9tude montre que sans communication du syst\u00e8me immunitaire, le cerveau ne signale pas les dangers potentiels de l&#8217;environnement, rendant le corps ignorant des menaces et incapable d&#8217;\u00e9viter les dangers.<\/p>\n\n\n\n<p>Pour \u00e9tayer leurs r\u00e9sultats, le laboratoire Medzhitov a entrepris une enqu\u00eate approfondie en utilisant des souris sensibilis\u00e9es pour r\u00e9agir de mani\u00e8re allergique aux ovules, une prot\u00e9ine trouv\u00e9e dans les \u0153ufs de poulet. Notamment, ces souris sensibilis\u00e9es ont montr\u00e9 une aversion pour l&#8217;eau contenant des ovules, tandis que leurs homologues non sensibilis\u00e9s affichaient une pr\u00e9f\u00e9rence pour de telles sources d&#8217;eau. \u00c9tonnamment, l&#8217;aversion persistait pendant des mois chez les souris sensibilis\u00e9es.<\/p>\n\n\n\n<p>De mani\u00e8re intrigante, les chercheurs ont manipul\u00e9 les variables du syst\u00e8me immunitaire pour \u00e9valuer si des changements de comportement pouvaient \u00eatre induits chez les souris sensibilis\u00e9es. Les r\u00e9sultats \u00e9taient convaincants. Lorsque les anticorps de l&#8217;immunoglobuline E (IgE), produits du syst\u00e8me immunitaire, \u00e9taient bloqu\u00e9s chez les souris allergiques aux ovules, leur aversion pour l&#8217;eau charg\u00e9e de prot\u00e9ines diminuait. Les anticorps IgE servent de catalyseurs pour lib\u00e9rer des mastocytes, une sous-cat\u00e9gorie de globules blancs essentielle pour transmettre des signaux aux r\u00e9gions c\u00e9r\u00e9brales r\u00e9gissant les comportements aversifs. L&#8217;interruption de la transmission d&#8217;informations due au blocage de l&#8217;initiation des IgE a conduit les souris \u00e0 abandonner leur \u00e9vitement de l&#8217;allerg\u00e8ne.<\/p>\n\n\n\n<p>Medzhitov souligne l&#8217;incidence de l&#8217;\u00e9tude sur la compr\u00e9hension de l&#8217;\u00e9volution du syst\u00e8me immunitaire pour prot\u00e9ger les animaux des environnements \u00e9cologiques dangereux. Il envisage ces d\u00e9couvertes comme une \u00e9tape vers l&#8217;att\u00e9nuation des r\u00e9actions excessives aux allerg\u00e8nes et aux agents pathog\u00e8nes, offrant finalement un r\u00e9pit \u00e0 d&#8217;innombrables individus aux prises avec des allergies.<\/p>\n\n\n\n<p>Alors que la symphonie de la recherche scientifique se poursuit, cette r\u00e9v\u00e9lation renforce l&#8217;alliance entre les r\u00e9ponses immunitaires, le comportement et l&#8217;environnement, \u00e9lucidant des connexions complexes qui promettent d&#8217;am\u00e9liorer notre qualit\u00e9 de vie.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La simple odeur des fruits de mer, inoffensive pour la plupart des gens, peut provoquer une maladie violente chez ceux qui souffrent d&#8217;allergies aux fruits de mer, les poussant \u00e0 \u00e9viter sa pr\u00e9sence avec d\u00e9termination. Un sch\u00e9ma similaire se manifeste chez les individus qui endurent une intoxication alimentaire, o\u00f9 ils s&#8217;abstiennent \u00e9galement du repas qui [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":69030,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[684],"tags":[],"class_list":["post-69028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouvelles-pharmaceutiques"],"_links":{"self":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/comments?post=69028"}],"version-history":[{"count":1,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69028\/revisions"}],"predecessor-version":[{"id":69031,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/posts\/69028\/revisions\/69031"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/media\/69030"}],"wp:attachment":[{"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/media?parent=69028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/categories?post=69028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pharmacie-vezere.com\/promotions\/wp-json\/wp\/v2\/tags?post=69028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}