{"id":2613,"date":"2022-11-02T16:03:14","date_gmt":"2022-11-02T20:03:14","guid":{"rendered":"https:\/\/www.testes-online.org\/blog\/?p=2613"},"modified":"2023-12-08T15:45:54","modified_gmt":"2023-12-08T15:45:54","slug":"causas-da-perturbacao-do-espetro-do-autismo","status":"publish","type":"post","link":"https:\/\/www.testes-online.org\/blog\/autismo\/causas-da-perturbacao-do-espetro-do-autismo\/","title":{"rendered":"Causas da perturba\u00e7\u00e3o do espetro do autismo"},"content":{"rendered":"<blockquote><p>O conhecimento das causas do autismo, apesar dos esfor\u00e7os dos investigadores, n\u00e3o est\u00e1 completo. As hip\u00f3teses centram-se num desenvolvimento anormal ou em les\u00f5es precoces do sistema nervoso central, causadas por <strong>condi\u00e7\u00f5es gen\u00e9ticas e ambientais<\/strong>. Ao mesmo tempo, sabe-se que o aparecimento do autismo n\u00e3o \u00e9 influenciado por erros ou neglig\u00eancia dos pais.<\/p><\/blockquote>\n<h4>Factores gen\u00e9ticos<\/h4>\n<p>Os resultados de estudos de base populacional indicam uma grande contribui\u00e7\u00e3o das condi\u00e7\u00f5es gen\u00e9ticas para o desenvolvimento do autismo. Estes encontraram um aumento significativo do risco de autismo em familiares de primeiro grau (18-20% para irm\u00e3os) e uma elevada taxa de concord\u00e2ncia para o desenvolvimento da perturba\u00e7\u00e3o em g\u00e9meos monozig\u00f3ticos (60-90%) em compara\u00e7\u00e3o com g\u00e9meos dizig\u00f3ticos (0-20%). Estima-se tamb\u00e9m que <strong>a hereditariedade<\/strong> (a contribui\u00e7\u00e3o dos factores gen\u00e9ticos para o risco de desenvolver a perturba\u00e7\u00e3o) nas <strong>PEA \u00e9 de 0,4-0,9<\/strong>, uma das taxas mais elevadas entre todas as perturba\u00e7\u00f5es de sa\u00fade mental. Al\u00e9m disso, o autismo \u00e9 mais comum em crian\u00e7as com anomalias cromoss\u00f3micas. Exemplos incluem a s\u00edndrome do cromossoma X fr\u00e1gil. Afecta 3-10% dos rapazes e 5% das raparigas com perturba\u00e7\u00f5es hol\u00edsticas do desenvolvimento.<\/p>\n<h4>Factores ambientais<\/h4>\n<p>Os factores ambientais que podem influenciar a ocorr\u00eancia de autismo incluem.<\/p>\n<ul>\n<li>prematuridade<\/li>\n<li>envenenamento por metais pesados;<\/li>\n<li>idade dos pais;<\/li>\n<li>diabetes; hipotiroidismo na m\u00e3e;<\/li>\n<li>utiliza\u00e7\u00e3o de medicamentos antiepil\u00e9pticos pela m\u00e3e durante a gravidez;<\/li>\n<li>stress pr\u00e9-natal;<\/li>\n<li>infec\u00e7\u00f5es.<\/li>\n<\/ul>\n<h4>Existe uma liga\u00e7\u00e3o entre o autismo e a vacina\u00e7\u00e3o?<\/h4>\n<p><strong>Os dados<\/strong> epidemiol\u00f3gicos dispon\u00edveis <strong>n\u00e3o sugerem uma rela\u00e7\u00e3o causal entre a vacina\u00e7\u00e3o contra o sarampo, a papeira e a rub\u00e9ola e a perturba\u00e7\u00e3o do espetro do autismo<\/strong>. Um estudo efectuado h\u00e1 alguns anos, que sugeria a exist\u00eancia desta rela\u00e7\u00e3o, tinha falhas metodol\u00f3gicas. Tamb\u00e9m n\u00e3o existem provas de que qualquer outra vacina possa aumentar o risco de autismo.<\/p>\n<hr \/>\n<p>Fonte:<\/p>\n<ul>\n<li><em>https:\/\/www.damian.pl\/zdrowie-psychiczne\/autyzm\/<\/em><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>O conhecimento das causas do autismo, apesar dos esfor\u00e7os dos investigadores, n\u00e3o est\u00e1 completo. As hip\u00f3teses centram-se num desenvolvimento anormal ou em les\u00f5es precoces do&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2629,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[849],"tags":[885,884,883],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Causas da perturba\u00e7\u00e3o do espetro do autismo - Teste mental<\/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.testes-online.org\/blog\/autismo\/causas-da-perturbacao-do-espetro-do-autismo\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Causas da perturba\u00e7\u00e3o do espetro do autismo - Teste mental\" \/>\n<meta property=\"og:description\" content=\"O conhecimento das causas do autismo, apesar dos esfor\u00e7os dos investigadores, n\u00e3o est\u00e1 completo. 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