{"id":25451,"date":"2026-05-20T16:34:24","date_gmt":"2026-05-20T19:34:24","guid":{"rendered":"https:\/\/redelitoralrs.com\/?p=25451"},"modified":"2026-05-20T16:34:25","modified_gmt":"2026-05-20T19:34:25","slug":"exame-de-sangue-para-alzheimer-avanca-e-pode-ampliar-diagnostico-precoce-da-doenca","status":"publish","type":"post","link":"https:\/\/redelitoralrs.com\/index.php\/2026\/05\/20\/exame-de-sangue-para-alzheimer-avanca-e-pode-ampliar-diagnostico-precoce-da-doenca\/","title":{"rendered":"Exame de sangue para Alzheimer avan\u00e7a e pode ampliar diagn\u00f3stico precoce da doen\u00e7a"},"content":{"rendered":"\n<p>Pesquisas apresentadas durante o Clinical Research Summit 2026, realizado em Porto Alegre, apontam avan\u00e7os significativos no desenvolvimento de exames de sangue para diagn\u00f3stico do Alzheimer. Estudos liderados pelo pesquisador sueco Kaj Blennow indicam que os testes j\u00e1 alcan\u00e7am cerca de 95% de precis\u00e3o na identifica\u00e7\u00e3o da doen\u00e7a em pacientes com sinais de decl\u00ednio cognitivo.<\/p>\n\n\n\n<p>O tema foi debatido durante o evento promovido pelo Hospital Moinhos de Vento, que reuniu especialistas nacionais e internacionais da \u00e1rea de pesquisa cl\u00ednica. Considerado uma das principais refer\u00eancias mundiais em biomarcadores para doen\u00e7as neurodegenerativas, Blennow apresentou estudos voltados \u00e0 utiliza\u00e7\u00e3o de prote\u00ednas presentes no sangue para detectar altera\u00e7\u00f5es cerebrais associadas ao Alzheimer.<\/p>\n\n\n\n<p>Entre os principais marcadores analisados est\u00e1 a prote\u00edna p-tau217, relacionada \u00e0s altera\u00e7\u00f5es neurol\u00f3gicas t\u00edpicas da doen\u00e7a. Segundo os pesquisadores, a combina\u00e7\u00e3o de biomarcadores sangu\u00edneos tem demonstrado elevado n\u00edvel de confiabilidade tanto para confirmar quanto para descartar o Alzheimer em pacientes j\u00e1 submetidos \u00e0 investiga\u00e7\u00e3o cl\u00ednica.<\/p>\n\n\n\n<p>A proposta dos exames \u00e9 tornar o diagn\u00f3stico mais acess\u00edvel e menos invasivo. Atualmente, m\u00e9todos como PET scan cerebral e coleta de l\u00edquido cefalorraquidiano por pun\u00e7\u00e3o lombar s\u00e3o considerados procedimentos de maior custo e complexidade. Com o avan\u00e7o das an\u00e1lises sangu\u00edneas, especialistas acreditam que ser\u00e1 poss\u00edvel ampliar o acesso ao diagn\u00f3stico precoce, inclusive em servi\u00e7os de aten\u00e7\u00e3o prim\u00e1ria e regi\u00f5es sem infraestrutura avan\u00e7ada.<\/p>\n\n\n\n<p>Durante a apresenta\u00e7\u00e3o, tamb\u00e9m foram divulgados estudos envolvendo coleta capilar por gota de sangue seca, tecnologia semelhante \u00e0 utilizada em testes r\u00e1pidos. A t\u00e9cnica poder\u00e1 futuramente permitir an\u00e1lises simplificadas em locais remotos e com menor estrutura laboratorial.<\/p>\n\n\n\n<p>Apesar dos resultados considerados promissores, os pesquisadores destacaram que os testes ainda precisam passar por novas etapas de valida\u00e7\u00e3o antes de serem incorporados de forma ampla \u00e0 rotina cl\u00ednica. A expectativa \u00e9 de que os exames sejam utilizados principalmente em pacientes que j\u00e1 apresentam sintomas como perda de mem\u00f3ria e dificuldades cognitivas.<\/p>\n\n\n\n<p>Os avan\u00e7os ganham relev\u00e2ncia diante do desenvolvimento de terapias voltadas ao retardamento da progress\u00e3o do Alzheimer em est\u00e1gios iniciais. Especialistas apontam que a identifica\u00e7\u00e3o precoce dos pacientes deve se tornar cada vez mais importante no manejo da doen\u00e7a nos pr\u00f3ximos anos.<\/p>\n\n\n\n<p>O Clinical Research Summit 2026 ocorreu nos dias 12 e 13 de maio, em Porto Alegre, reunindo cerca de 500 participantes entre pesquisadores, representantes da ind\u00fastria farmac\u00eautica, hospitais, universidades e \u00f3rg\u00e3os reguladores. Ao longo do encontro, foram debatidos temas como intelig\u00eancia artificial, inova\u00e7\u00e3o em sa\u00fade, medicina personalizada e os desafios da pesquisa cl\u00ednica no Brasil.<\/p>\n\n\n\n<p><em>Com informa\u00e7\u00f5es do Portal Porto Alegre 24 horas<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pesquisas apresentadas durante o Clinical Research Summit 2026, realizado em Porto Alegre, apontam avan\u00e7os significativos no desenvolvimento de exames de sangue para diagn\u00f3stico do Alzheimer. Estudos liderados pelo pesquisador sueco Kaj Blennow indicam que os testes j\u00e1 alcan\u00e7am cerca de 95% de precis\u00e3o na identifica\u00e7\u00e3o da doen\u00e7a em pacientes com sinais de decl\u00ednio cognitivo. O [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":25452,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[188,15],"tags":[],"class_list":["post-25451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rio-grande-do-sul","category-noticias"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Exame de sangue para Alzheimer avan\u00e7a e pode ampliar diagn\u00f3stico precoce da doen\u00e7a - Rede Litoral RS<\/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:\/\/redelitoralrs.com\/index.php\/2026\/05\/20\/exame-de-sangue-para-alzheimer-avanca-e-pode-ampliar-diagnostico-precoce-da-doenca\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exame de sangue para Alzheimer avan\u00e7a e pode ampliar diagn\u00f3stico precoce da doen\u00e7a - Rede Litoral RS\" \/>\n<meta property=\"og:description\" content=\"Pesquisas apresentadas durante o Clinical Research Summit 2026, realizado em Porto Alegre, apontam avan\u00e7os significativos no desenvolvimento de exames de sangue para diagn\u00f3stico do Alzheimer. Estudos liderados pelo pesquisador sueco Kaj Blennow indicam que os testes j\u00e1 alcan\u00e7am cerca de 95% de precis\u00e3o na identifica\u00e7\u00e3o da doen\u00e7a em pacientes com sinais de decl\u00ednio cognitivo. 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