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Blood Test Has Potential to Detect Earliest Signals of Alzheimer’s Disease — Harvard Gazette

Health Blood test has potential to detect earliest signals of Alzheimer’s disease April 21, 2026 3 min read New study suggests higher levels of pTau217 predict a faster progression, even when initial brain scans appear normal A new study by Harvard-affiliated investigators at Mass General Brigham has found that a blood test for an Alzheimer’s disease biomarker, plasma phosphorylated tau 217 (pTau217), has…

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A new study conducted by a team at Mass General Brigham in the United States suggests that a blood test may predict the risk of Alzheimer's disease years before symptoms appear. The biomarker pTau217 has shown promise in identifying accumulations of proteins associated with the disease, such as amyloid-beta and tau. Research Reveals Promising Biomarker The study identified pTau217 as a biomarker that may warn of the early development of Alzheime…

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Knowridge Science Report broke the news on Monday, April 20, 2026.
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