{"id":576,"date":"2025-10-16T09:14:45","date_gmt":"2025-10-16T12:14:45","guid":{"rendered":"https:\/\/wcwdigital.com\/noticias\/pesquisas-brasileiras-avancam-no-diagnostico-de-alzheimer-com-exame-de-sangue\/"},"modified":"2025-10-30T16:18:49","modified_gmt":"2025-10-30T19:18:49","slug":"alzheimer-avancam-pesquisas-pela-analise-com-exame-de-sangue","status":"publish","type":"post","link":"https:\/\/wcwdigital.com\/noticias\/alzheimer-avancam-pesquisas-pela-analise-com-exame-de-sangue\/","title":{"rendered":"Pesquisas brasileiras avan\u00e7am no diagn\u00f3stico de Alzheimer com exame de sangue"},"content":{"rendered":"\n<p>Cientistas brasileiros validaram a efic\u00e1cia de um exame de sangue para diagnosticar o Alzheimer, identificando a prote\u00edna p-tau217 como um biomarcador chave para distinguir indiv\u00edduos saud\u00e1veis de pacientes com a doen\u00e7a. <\/p>\n\n\n\n<p>A pesquisa, com apoio do Instituto Serrapilheira, mira a implementa\u00e7\u00e3o do exame no Sistema \u00danico de Sa\u00fade (SUS) para uso em larga escala.<\/p>\n\n\n\n<p>Atualmente, o diagn\u00f3stico no <a href=\"https:\/\/wcwdigital.com\/noticias\/brasil-venceu-croacia-em-amistoso-antes-da-convocacao-da-copa\/\">Brasil<\/a> depende de exames invasivos como o de l\u00edquor (pun\u00e7\u00e3o lombar) e tomografias, ou do exame cl\u00ednico realizado por neurologistas com base nos sintomas. <\/p>\n\n\n\n<p>Os m\u00e9todos existentes, como a pun\u00e7\u00e3o lombar, exigem infraestrutura e experi\u00eancia, enquanto a tomografia apresenta alto custo para aplica\u00e7\u00e3o em todo o territ\u00f3rio nacional.<\/p>\n\n\n\n<p>O estudo, que envolveu 23 pesquisadores, incluindo oito brasileiros, analisou mais de 110 estudos com cerca de 30 mil participantes. Os resultados confirmaram que a prote\u00edna p-tau217 no sangue \u00e9 o biomarcador mais promissor para identificar a doen\u00e7a.<\/p>\n\n\n\n<p>Os resultados das an\u00e1lises em 59 pacientes foram comparados com o exame de l\u00edquor, considerado o &#8220;padr\u00e3o ouro&#8221;, demonstrando uma confiabilidade superior a 90%, \u00edndice recomendado pela Organiza\u00e7\u00e3o Mundial da Sa\u00fade (OMS). <\/p>\n\n\n\n<p>Simultaneamente, outro grupo de <a href=\"https:\/\/www.rededorsaoluiz.com.br\/instituto\/idor\/tipo_cursos\/graduacao\/?utm_source=google+ads&amp;utm_medium=cpc&amp;utm2023_SET_Vestibular+Geral_26518&amp;utm_id=2023_SET_Vestibular+Geral_26518&amp;utm_term=faculdade%20rio%20de%20janeiro&amp;gad_source=1&amp;gad_campaignid=23071909366&amp;gbraid=0AAAAACVW7FpP1F_X6fqRPADTl-zHcRhNb&amp;gclid=CjwKCAjwr8LHBhBKEiwAy47uUjGKruQhQl39ejNysPMmJdyGJdwT_tr7dWalRdZ_i1xpO6dpQfagZBoCPEYQAvD_BwE\" target=\"_blank\" rel=\"noreferrer noopener\">pesquisadores do Instituto D\u2019Or <\/a>e da Universidade Federal do Rio de Janeiro (UFRJ) alcan\u00e7ou resultados similares.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Diagn\u00f3stico Precoce de Alzheimer <\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"578\" src=\"https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-1024x578.webp\" alt=\"Alzheimer: Avan\u00e7am Pesquisas pela an\u00e1lise com exame de sangue\" class=\"wp-image-586\" style=\"width:370px;height:auto\" srcset=\"https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-1024x578.webp 1024w, https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-300x169.webp 300w, https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-768x434.webp 768w, https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-1536x867.webp 1536w, https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-2048x1156.webp 2048w, https:\/\/wcwdigital.com\/noticias\/wp-content\/uploads\/2025\/10\/demencia-de-perda-de-memoria-e-conceito-de-alzheimer-criado-com-tecnologia-generative-ai-scaled.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>O diagn\u00f3stico precoce do Alzheimer \u00e9 um desafio global de sa\u00fade p\u00fablica. A OMS estima que 57 milh\u00f5es de pessoas no mundo vivem com alguma forma de dem\u00eancia, sendo o Alzheimer respons\u00e1vel por pelo menos 60% dos casos. <\/p>\n\n\n\n<p>No Brasil, o Relat\u00f3rio Nacional sobre Dem\u00eancia de 2024 estima 1,8 milh\u00e3o de pessoas com a doen\u00e7a, com proje\u00e7\u00f5es de triplica\u00e7\u00e3o at\u00e9 2050.<\/p>\n\n\n\n<p>O estudo tamb\u00e9m apontou que a baixa escolaridade pode agravar a doen\u00e7a, sugerindo que fatores socioecon\u00f4micos e educacionais influenciam o envelhecimento cerebral.<\/p>\n\n\n\n<p>Embora o exame de sangue j\u00e1 esteja dispon\u00edvel na rede privada, com testes importados custando at\u00e9 R$ 3,6 mil, o desenvolvimento de uma alternativa nacional e gratuita \u00e9 crucial. <\/p>\n\n\n\n<p>A implementa\u00e7\u00e3o no SUS depende de avalia\u00e7\u00f5es para determinar a performance do exame, a estrat\u00e9gia de inclus\u00e3o, a log\u00edstica e a popula\u00e7\u00e3o beneficiada.<\/p>\n\n\n\n<p>Os resultados definitivos da pesquisa s\u00e3o esperados em aproximadamente dois anos. Estudos ser\u00e3o iniciados em pessoas com mais de 55 anos, visando mapear a preval\u00eancia da doen\u00e7a em sua fase pr\u00e9-cl\u00ednica, quando ela se instala sem apresentar sintomas.<\/p>\n\n\n\n<p><em>Fonte: agenciabrasil.ebc.com.br<\/em><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cientistas brasileiros validaram a efic\u00e1cia de um exame de sangue para diagnosticar o Alzheimer, identificando a prote\u00edna p-tau217 como um biomarcador chave para distinguir indiv\u00edduos [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":584,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[5],"tags":[129,126,125,127,128],"class_list":["post-576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-politica","tag-alzheimer","tag-doenca","tag-exame","tag-resultados","tag-sangue"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alzheimer: Avan\u00e7am Pesquisas pela an\u00e1lise com exame de sangue<\/title>\n<meta name=\"description\" content=\"Cientistas brasileiros 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