{"id":1766,"date":"2022-07-18T16:52:39","date_gmt":"2022-07-18T20:52:39","guid":{"rendered":"https:\/\/loeysdietzcanada.org\/?page_id=1766"},"modified":"2023-05-02T15:00:30","modified_gmt":"2023-05-02T19:00:30","slug":"qu-est-ce-que-le-tissu-conjonctif","status":"publish","type":"page","link":"https:\/\/loeysdietzcanada.org\/fr\/syndrome-de-loeys-dietz\/qu-est-ce-que-le-tissu-conjonctif\/","title":{"rendered":"Qu&#8217;est-ce que le tissu conjonctif ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1766\" class=\"elementor elementor-1766 elementor-701\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-1904a0cc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1904a0cc\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-31a319de\" data-id=\"31a319de\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5bbf892d elementor-widget elementor-widget-heading\" data-id=\"5bbf892d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que le tissu conjonctif ?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-11673725 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"11673725\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1a3fd76e\" data-id=\"1a3fd76e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-61ecc07f elementor-widget elementor-widget-image\" data-id=\"61ecc07f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/Image-1-Newsletter-research-article-scaled.jpg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7a28db elementor-widget elementor-widget-image\" data-id=\"b7a28db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-1024x683.jpg\" class=\"attachment-large size-large wp-image-1589\" alt=\"\" srcset=\"https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-1024x683.jpg 1024w, https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-300x200.jpg 300w, https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-768x512.jpg 768w, https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-1536x1024.jpg 1536w, https:\/\/loeysdietzcanada.org\/wp-content\/uploads\/2022\/09\/human_connective_tisse_500x_magnification-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Cellules du tissu conjonctif humain \u00e0 un grossissement de 500 x (500 fois plus grandes que leur taille r\u00e9elle)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-330c7f2a elementor-widget elementor-widget-text-editor\" data-id=\"330c7f2a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Le syndrome de Loeys-Dietz (SLD) est une maladie g\u00e9n\u00e9tique\u00a0<\/span><span style=\"font-weight: 400;\">qui affecte le <\/span><b>tissu conjonctif<\/b><span style=\"font-weight: 400;\"> de l&#8217;organisme.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-f666f8f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f666f8f\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c6d3e8e\" data-id=\"c6d3e8e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c95ee84 elementor-widget elementor-widget-heading\" data-id=\"c95ee84\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que le tissu conjonctif ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0bd3fb7 elementor-widget elementor-widget-text-editor\" data-id=\"0bd3fb7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">\u00a0Le <strong>tissu conjonctif<\/strong> sert \u00e0 connecter, soutenir, et aider \u00e0 lier les autres tissus de l&#8217;organisme.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-58a1c38 elementor-widget elementor-widget-text-editor\" data-id=\"58a1c38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">\u00a0Les <\/span><b>diff\u00e9rents types de tissu conjonctif<\/b><span style=\"font-weight: 400;\"> comprennent les cellules adipeuses, les cellules osseuses, les globules rouges et les globules blancs, ainsi que le r\u00e9seau l\u00e2che de cellules et de fibres qui sous-tend les couches de la peau. On trouve des \u00e9l\u00e9ments de tissu conjonctif dans tous les organes du corps.<\/span><\/p><p><span style=\"font-weight: 400;\">Le <\/span><b>collag\u00e8ne<\/b><span style=\"font-weight: 400;\"> et <\/span><b>l&#8217;\u00e9lastine<\/b><span style=\"font-weight: 400;\"> sont deux prot\u00e9ines qui composent le tissu conjonctif. Le collag\u00e8ne est le principal composant structurel du tissu conjonctif et se trouve dans les vaisseaux sanguins, les os, le cartilage, la corn\u00e9e, la peau, les ligaments et les tendons. L&#8217;\u00e9lastine est une prot\u00e9ine flexible qui aide le tissu conjonctif \u00e0 s&#8217;\u00e9tirer et \u00e0 se r\u00e9tracter. On la trouve dans les ligaments, la peau et les art\u00e8res.<\/span><\/p><p><span style=\"font-weight: 400;\">Il existe deux cat\u00e9gories de tissu conjonctif, le <\/span><b>tissu conjonctif l\u00e2che<\/b><span style=\"font-weight: 400;\"> et le <\/span><b>tissu conjonctif dense.<\/b><span style=\"font-weight: 400;\"> Le tissu conjonctif l\u00e2che se trouve dans la plupart des organes et est riche en prot\u00e9oglycanes (prot\u00e9ines avec de longues cha\u00eenes lat\u00e9rales de sucre), mais plus pauvre en fibres de collag\u00e8ne. Le tissu conjonctif dense se trouve dans les parois des art\u00e8res, les couches de la peau, les tendons et les os et comprend plus de fibres de collag\u00e8ne que le tissu conjonctif l\u00e2che.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-6637658 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6637658\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-45956ae\" data-id=\"45956ae\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78993d8 elementor-widget__width-auto elementor-widget elementor-widget-heading\" data-id=\"78993d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Troubles du tissu conjonctif<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6ed203a\" data-id=\"6ed203a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-be4a49c elementor-widget elementor-widget-text-editor\" data-id=\"be4a49c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Un <\/span><b>trouble du tissu conjonctif<\/b><span style=\"font-weight: 400;\"> affecte le tissu conjonctif de l&#8217;organisme. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e552da elementor-widget elementor-widget-text-editor\" data-id=\"4e552da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Plus de 200 troubles ont \u00e9t\u00e9 identifi\u00e9s et la causalit\u00e9 et les sympt\u00f4mes varient en fonction des diff\u00e9rents troubles. Parmi les troubles du tissu conjonctif susceptibles d&#8217;affecter l&#8217;aorte figurent : le <\/span><b>syndrome de Loeys-Dietz (SLD), le syndrome de Marfan (SMF), le type vasculaire du syndrome d&#8217;Ehlers-Danlos (SEDv), le syndrome de Shprintzen-Goldberg (SGS) et le syndrome de Meester-Loeys (SMRL).<\/b><\/p><p><span style=\"font-weight: 400;\">Parmi les autres troubles du tissu conjonctif figurent les <\/span><b>troubles auto-immuns<\/b><span style=\"font-weight: 400;\"> (lorsque le syst\u00e8me immunitaire attaque les parties saines de l&#8217;organisme) tels que la dermatomyosite, la polyarthrite rhumato\u00efde, la scl\u00e9rodermie, le syndrome de Sj\u00f6gren, le lupus \u00e9ryth\u00e9mateux diss\u00e9min\u00e9 et la vascularite.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da49de8 elementor-widget elementor-widget-button\" data-id=\"da49de8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/loeysdietzcanada.org\/fr\/syndrome-de-loeys-dietz\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">en savoir plus sur le syndrome de loeys-dietz<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-adbe2b0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"adbe2b0\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4bdb5727\" data-id=\"4bdb5727\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-464468b elementor-widget elementor-widget-heading\" data-id=\"464468b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le syndrome de Loeys-Dietz et les conditions similaires<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75614ab elementor-widget elementor-widget-spacer\" data-id=\"75614ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d2c212a elementor-widget elementor-widget-eael-adv-accordion\" data-id=\"d2c212a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eael-adv-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t            <div class=\"eael-adv-accordion\" id=\"eael-adv-accordion-d2c212a\" data-scroll-on-click=\"no\" data-scroll-speed=\"300\" data-accordion-id=\"d2c212a\" data-accordion-type=\"accordion\" data-toogle-speed=\"300\">\n            <div class=\"eael-accordion-list\">\n\t\t\t\t\t<div id=\"le-syndrome-de-marfan-vs-le-syndrome-de-loeys-dietz\" class=\"elementor-tab-title eael-accordion-header\" tabindex=\"0\" data-tab=\"1\" aria-controls=\"elementor-tab-content-2201\"><span class=\"eael-advanced-accordion-icon-closed\"><\/span><span class=\"eael-advanced-accordion-icon-opened\"><\/span><span class=\"eael-accordion-tab-title\">Le syndrome de Marfan vs. le syndrome de Loeys-Dietz<\/span><i aria-hidden=\"true\" class=\"fa-toggle fas fa-plus\"><\/i><\/div><div id=\"elementor-tab-content-2201\" class=\"eael-accordion-content clearfix\" data-tab=\"1\" aria-labelledby=\"le-syndrome-de-marfan-vs-le-syndrome-de-loeys-dietz\"><p><span style=\"font-weight: 400\">Le<strong> syndrome de Marfan (SMF)<\/strong> est d\u00fb \u00e0 une mutation (changement) du g\u00e8ne de la <\/span><b>fibrilline-1 (FBN1)<\/b><span style=\"font-weight: 400\">, qui est responsable de la r\u00e9sistance et de la flexibilit\u00e9 du tissu conjonctif. D&#8217;autre part, le <strong>syndrome de Loeys-Dietz (SLD)<\/strong> est d\u00fb \u00e0 une mutation du <\/span><b>g\u00e8ne SMAD2, SMAD3, TGFB2, TGFB3, TGFBR1 ou TGFBR2<\/b><span style=\"font-weight: 400\">. Ces g\u00e8nes jouent un r\u00f4le dans la voie du TGF b\u00eata, une s\u00e9rie d&#8217;actions et d&#8217;interactions mol\u00e9culaires impliqu\u00e9es dans le d\u00e9veloppement, la croissance, la fonction immunitaire et le maintien des tissus de l&#8217;organisme.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les caract\u00e9ristiques distinctives (uniques) de la SMF sont la dolichost\u00e9nom\u00e9lie (membres tr\u00e8s longs) et l&#8217;ectopie lentisque (dislocation du cristallin). Cependant, certaines \u00e9tudes ont rapport\u00e9 une ectopie lentis chez des patients atteints de SLD.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les manifestations distinctives du SLD sont l&#8217;hypert\u00e9lorisme (yeux tr\u00e8s espac\u00e9s), les an\u00e9vrismes art\u00e9riels \u00e9tendus (pr\u00e9sents dans l&#8217;aorte et d&#8217;autres art\u00e8res), la tortuosit\u00e9 art\u00e9rielle (art\u00e8res allong\u00e9es et tordues), la fente palatine (ouverture\/espace dans le palais) et la luette bifide (fendue) ou large. Les personnes atteintes du SLD sont \u00e9galement plus susceptibles que celles atteintes du SMF d&#8217;avoir une peau translucide, des cicatrices anormales, des hernies, une mauvaise cicatrisation des plaies, une instabilit\u00e9 de la colonne cervicale, une craniosynostose (jonction pr\u00e9coce du cr\u00e2ne d&#8217;un b\u00e9b\u00e9), des contractures articulaires et des anomalies cong\u00e9nitales telles que le pied bot et les malformations cardiaques. Le SLD a \u00e9galement une incidence plus \u00e9lev\u00e9e de complications li\u00e9es \u00e0 la grossesse, et les an\u00e9vrismes sont plus susceptibles de se diss\u00e9quer (\u00e9clater) \u00e0 une taille plus petite et \u00e0 un \u00e2ge plus jeune que dans le cas du SMF.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les personnes atteintes du SLD et du SMF peuvent partager des caract\u00e9ristiques telles que l&#8217;an\u00e9vrisme et la dissection de l&#8217;aorte, la scoliose, la d\u00e9formation ant\u00e9rieure du thorax, le pes planus (pied plat), l&#8217;ectasie durale (\u00e9largissement du sac dural) et le pneumothorax spontan\u00e9 (collapsus pulmonaire).<\/span><\/p><\/div>\n\t\t\t\t\t<\/div><div class=\"eael-accordion-list\">\n\t\t\t\t\t<div id=\"le-type-vasculaire-du-syndrome-dehlers-danlos-vs-le-syndrome-de-loeys-dietz\" class=\"elementor-tab-title eael-accordion-header\" tabindex=\"0\" data-tab=\"2\" aria-controls=\"elementor-tab-content-2202\"><span class=\"eael-advanced-accordion-icon-closed\"><\/span><span class=\"eael-advanced-accordion-icon-opened\"><\/span><span class=\"eael-accordion-tab-title\">Le type vasculaire du syndrome d'Ehlers-Danlos vs. le syndrome de Loeys-Dietz<\/span><i aria-hidden=\"true\" class=\"fa-toggle fas fa-plus\"><\/i><\/div><div id=\"elementor-tab-content-2202\" class=\"eael-accordion-content clearfix\" data-tab=\"2\" aria-labelledby=\"le-type-vasculaire-du-syndrome-dehlers-danlos-vs-le-syndrome-de-loeys-dietz\"><p><span style=\"font-weight: 400\">Le <strong>syndrome d&#8217;Ehlers-Danlos vasculaire <\/strong><\/span><strong>(SEDv)<\/strong> <span style=\"font-weight: 400\">est d\u00fb \u00e0 une mutation du <\/span><b>g\u00e8ne COL3A1<\/b><span style=\"font-weight: 400\">, qui est responsable de la production de collag\u00e8ne. Les personnes qui pr\u00e9sentent des sympt\u00f4mes similaires au <\/span><span style=\"font-weight: 400\">SEDv<\/span> <span style=\"font-weight: 400\">\u00a0mais dont le r\u00e9sultat du test est n\u00e9gatif doivent \u00eatre \u00e9valu\u00e9es pour le <strong>syndrome de Loeys-Dietz (SLD)<\/strong>.\u00a0<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les patients atteints du SLD peuvent pr\u00e9senter un hypert\u00e9lorisme (yeux tr\u00e8s espac\u00e9s) et une luette bifide (fendue) ou large, contrairement aux patients atteints du <\/span><span style=\"font-weight: 400\">SEDv<\/span><span style=\"font-weight: 400\">.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Le SLD et le <\/span><span style=\"font-weight: 400\">SEDv<\/span><span style=\"font-weight: 400\"> pr\u00e9sentent tous deux des signes cutan\u00e9s tels que des ecchymoses faciles, une texture de peau douce ou velout\u00e9e, de larges cicatrices et une peau translucide. Les autres caract\u00e9ristiques communes sont le pied bot, l&#8217;hypermobilit\u00e9 articulaire, une incidence relativement \u00e9lev\u00e9e d&#8217;an\u00e9vrismes art\u00e9riels et quelques cas de rupture soudaine d&#8217;organes.<\/span><\/p><\/div>\n\t\t\t\t\t<\/div><div class=\"eael-accordion-list\">\n\t\t\t\t\t<div id=\"le-syndrome-de-shprintzen-goldberg-vs-le-syndrome-de-loeys-dietz\" class=\"elementor-tab-title eael-accordion-header\" tabindex=\"0\" data-tab=\"3\" aria-controls=\"elementor-tab-content-2203\"><span class=\"eael-advanced-accordion-icon-closed\"><\/span><span class=\"eael-advanced-accordion-icon-opened\"><\/span><span class=\"eael-accordion-tab-title\">Le syndrome de Shprintzen-Goldberg vs. le syndrome de Loeys-Dietz<\/span><i aria-hidden=\"true\" class=\"fa-toggle fas fa-plus\"><\/i><\/div><div id=\"elementor-tab-content-2203\" class=\"eael-accordion-content clearfix\" data-tab=\"3\" aria-labelledby=\"le-syndrome-de-shprintzen-goldberg-vs-le-syndrome-de-loeys-dietz\"><p><span style=\"font-weight: 400\">Le <strong>syndrome de Shprintzen-Goldberg (SGS)<\/strong> est d\u00fb \u00e0 une mutation du <\/span><b>g\u00e8ne SKI<\/b><span style=\"font-weight: 400\">, qui est responsable du contr\u00f4le de l&#8217;activit\u00e9 de la voie du TGF b\u00eata.\u00a0<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">La plupart des personnes atteintes du SGS ne pr\u00e9sentent pas de formation d&#8217;an\u00e9vrisme progressive ou grave et sont plus susceptibles de pr\u00e9senter un retard de d\u00e9veloppement que les personnes atteintes du\u00a0<strong>syndrome de Loeys-Dietz (SLD)<\/strong>.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les personnes atteintes du SLD et du SGS peuvent pr\u00e9senter des caract\u00e9ristiques similaires, telles qu&#8217;une craniosynostose (jonction pr\u00e9coce du cr\u00e2ne d&#8217;un b\u00e9b\u00e9), des anomalies du pectus et une scoliose.<\/span><\/p><\/div>\n\t\t\t\t\t<\/div><div class=\"eael-accordion-list\">\n\t\t\t\t\t<div id=\"le-syndrome-de-meester-loeys-vs-le-syndrome-de-loeys-dietz\" class=\"elementor-tab-title eael-accordion-header\" tabindex=\"0\" data-tab=\"4\" aria-controls=\"elementor-tab-content-2204\"><span class=\"eael-advanced-accordion-icon-closed\"><\/span><span class=\"eael-advanced-accordion-icon-opened\"><\/span><span class=\"eael-accordion-tab-title\">Le syndrome de Meester-Loeys vs. le syndrome de Loeys-Dietz<\/span><i aria-hidden=\"true\" class=\"fa-toggle fas fa-plus\"><\/i><\/div><div id=\"elementor-tab-content-2204\" class=\"eael-accordion-content clearfix\" data-tab=\"4\" aria-labelledby=\"le-syndrome-de-meester-loeys-vs-le-syndrome-de-loeys-dietz\"><p><span style=\"font-weight: 400\">Le <strong>syndrome de Meester-Loeys (SMRL)<\/strong> ou syndrome d&#8217;an\u00e9vrisme aortique associ\u00e9 au BGN est caus\u00e9 par une mutation du <\/span><b>g\u00e8ne BGN<\/b><span style=\"font-weight: 400\">, qui est responsable de la production d&#8217;une prot\u00e9ine (biglycane) qui fait partie de la peau et d&#8217;autres tissus conjonctifs.\u00a0<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les personnes atteintes du SMRL peuvent pr\u00e9senter une dilatation des ventricules, un grand p\u00e9rim\u00e8tre cr\u00e2nien, une croissance excessive des cheveux, une hypertrophie des gencives et un contenu en collag\u00e8ne plus faible, contrairement aux personnes atteintes du\u00a0<strong>syndrome de Loeys-Dietz (SLD)<\/strong>.<\/span><\/p><p>\u00a0<\/p><p><span style=\"font-weight: 400\">Les manifestations communes du SMRL et du SLD sont l&#8217;hypert\u00e9lorisme (yeux tr\u00e8s espac\u00e9s), la luette bifide (fendue), les d\u00e9formations thoraciques, l&#8217;hypermobilit\u00e9 articulaire et la dilatation et la dissection pr\u00e9coces de la racine aortique.<\/span><\/p><\/div>\n\t\t\t\t\t<\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0df3cde elementor-widget elementor-widget-spacer\" data-id=\"0df3cde\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-cf7f795 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cf7f795\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e559459\" data-id=\"e559459\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ea056ba elementor-widget__width-auto elementor-widget elementor-widget-heading\" data-id=\"ea056ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Diagnostic diff\u00e9rentiel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-0ddd043\" data-id=\"0ddd043\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ef13895 elementor-widget elementor-widget-text-editor\" data-id=\"ef13895\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Le SLD est une trouble distinct.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b7ea76 elementor-widget elementor-widget-text-editor\" data-id=\"0b7ea76\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Le SLD a \u00e9t\u00e9 d\u00e9crit pour la premi\u00e8re fois en 2005. \u00c0 cette \u00e9poque, les professionnels de la sant\u00e9 et les chercheurs ont r\u00e9alis\u00e9 que, bien que le SLD partage certaines caract\u00e9ristiques avec d&#8217;autres troubles du tissu conjonctif, il s&#8217;agit d&#8217;un <\/span><b>trouble distinct<\/b><span style=\"font-weight: 400;\">, car il existe une <a href=\"https:\/\/loeysdietzcanada.org\/fr\/signes-et-symptomes\/\" target=\"_blank\" rel=\"noopener\">vari\u00e9t\u00e9 de manifestations qui le distinguent.<\/a>\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Aujourd&#8217;hui, lorsque les professionnels de la sant\u00e9 rencontrent des patients atteints de troubles du tissu conjonctif, ils peuvent utiliser un processus appel\u00e9 <\/span><b>diagnostic diff\u00e9rentiel<\/b><span style=\"font-weight: 400;\"> pour comparer des affections pr\u00e9sentant des caract\u00e9ristiques similaires et d\u00e9terminer celles qui produisent les sympt\u00f4mes de leur patient. <\/span><\/p><p><span style=\"font-weight: 400;\">L&#8217;identification finale de l&#8217;affection d&#8217;un patient sur la base de ses signes, sympt\u00f4mes et r\u00e9sultats de laboratoire est appel\u00e9e un <\/span><b>diagnostic clinique<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e72ba5 elementor-widget elementor-widget-button\" data-id=\"9e72ba5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/loeysdietzcanada.org\/fr\/syndrome-de-loeys-dietz\/recevoir-diagnostic-syndrome-de-loeys-dietz\/\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-long-arrow-alt-right\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">comment recevoir un diagnostic du syndrome de Loeys-Dietz<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a10ddff elementor-widget elementor-widget-spacer\" data-id=\"a10ddff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-4fb7e31 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4fb7e31\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-56aaf3e\" data-id=\"56aaf3e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1d161ba elementor-widget elementor-widget-eael-adv-accordion\" data-id=\"1d161ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eael-adv-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t            <div class=\"eael-adv-accordion\" id=\"eael-adv-accordion-1d161ba\" data-scroll-on-click=\"no\" data-scroll-speed=\"300\" data-accordion-id=\"1d161ba\" data-accordion-type=\"accordion\" data-toogle-speed=\"300\">\n            <div class=\"eael-accordion-list\">\n\t\t\t\t\t<div id=\"rfrences\" class=\"elementor-tab-title eael-accordion-header\" tabindex=\"0\" data-tab=\"1\" aria-controls=\"elementor-tab-content-3041\"><span class=\"eael-advanced-accordion-icon-closed\"><\/span><span class=\"eael-advanced-accordion-icon-opened\"><\/span><span class=\"eael-accordion-tab-title\">R\u00e9f\u00e9rences<\/span><i aria-hidden=\"true\" class=\"fa-toggle fas fa-plus\"><\/i><\/div><div id=\"elementor-tab-content-3041\" class=\"eael-accordion-content clearfix\" data-tab=\"1\" aria-labelledby=\"rfrences\"><p style=\"font-weight: 400\">Centers for Disease Control and Prevention. (2020, October 23).\u00a0<em>Facts about craniosynostosis<\/em>. Centers for Disease Control and Prevention. Retrieved November 9, 2022, from https:\/\/www.cdc.gov\/ncbddd\/birthdefects\/craniosynostosis.html\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Cleveland Clinic. (2019, December 16).\u00a0<em>Connective tissue disease: Types, diagnosis, symptoms &amp; causes<\/em>. Cleveland Clinic. Retrieved November 9, 2022, from https:\/\/my.clevelandclinic.org\/health\/diseases\/14803-connective-tissue-diseases<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Farlex. (n.d.).\u00a0<em>Clinical diagnosis<\/em>. The Free Dictionary. Retrieved November 9, 2022, from https:\/\/medical-dictionary.thefreedictionary.com\/clinical+diagnosis\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Kamrani, P., Marston, G., &amp; Jan, A. (2022).\u00a0<em>Anatomy, Connective Tissue<\/em>. StatPearls Publishing.\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Loeys-Dietz Syndrome Foundation. (n.d.).\u00a0<em>What is LDS? &#8211; Loeys-Dietz Syndrome Foundation<\/em>. Loeys-Dietz Syndrome Foundation. Retrieved November 9, 2022, from https:\/\/www.loeysdietz.org\/what-is-lds?rq=connective\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Loeys-Dietz Syndrome Foundation Canada. (2022, October 11).\u00a0<em>Receive a loeys-dietz syndrome diagnosis &#8211; LDSFC<\/em>. Loeys-Dietz Syndrome Foundation Canada. Retrieved November 9, 2022, from https:\/\/loeysdietzcanada.org\/receive-a-diagnosis\/\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Loomba, K., Lin, D., Lin, W., &amp; Riley, B. (2022). Ocular manifestations of loeys\u2013dietz syndrome.\u00a0<em>EMJ Rheumatology<\/em>. https:\/\/doi.org\/10.33590\/emjrheumatol\/21-00235\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Meester, J. A., De Kinderen, P., Verstraeten, A., &amp; Loeys, B. (2021). Meester-Loeys syndrome.\u00a0<em>Advances in Experimental Medicine and Biology<\/em>,\u00a01348:265\u2013272. https:\/\/doi.org\/10.1007\/978-3-030-80614-9_12\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Meester, J. A., Verstraeten, A., Schepers, D., Alaerts, M., Van Laer, L., &amp; Loeys, B. L. (2017). Differences in manifestations of Marfan syndrome, Ehlers-Danlos syndrome, and Loeys-Dietz syndrome.\u00a0<em>Annals of Cardiothoracic Surgery<\/em>,\u00a0<em>6<\/em>(6), 582\u2013594. https:\/\/doi.org\/10.21037\/acs.2017.11.03\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Science Direct. (n.d.).\u00a0<em>Biglycan<\/em>. Biglycan &#8211; an overview | ScienceDirect Topics. Retrieved November 9, 2022, from https:\/\/www.sciencedirect.com\/topics\/neuroscience\/biglycan\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">U.S. National Library of Medicine. (n.d.).\u00a0<em>Arterial tortuosity syndrome: Medlineplus Genetics<\/em>. MedlinePlus. Retrieved November 9, 2022, from https:\/\/medlineplus.gov\/genetics\/condition\/arterial-tortuosity-syndrome\/\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">U.S. National Library of Medicine. (2013, February 1).\u00a0<em>Ski gene: Medlineplus genetics<\/em>. MedlinePlus. Retrieved November 9, 2022, from https:\/\/medlineplus.gov\/genetics\/gene\/ski\/\u00a0<\/p><p>\u00a0<\/p><p style=\"font-weight: 400\">Yale. (n.d.).\u00a0<em>Cell Biology @Yale<\/em>. medcell.med.yale.edu. Retrieved November 9, 2022, from http:\/\/medcell.med.yale.edu\/lectures\/connective_tissue.php\u00a0<\/p><\/div>\n\t\t\t\t\t<\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f31b6ce elementor-widget elementor-widget-spacer\" data-id=\"f31b6ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Qu&#8217;est-ce que le tissu conjonctif ? 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