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Blood Test Predicts Alzheimer’s Disease Progression Years Before Brain Scan Changes

A study suggests that a blood test measuring the biomarker pTau217 can detect early signs of Alzheimer’s disease years before ...
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New study finds blood test can predict Alzheimer’s disease progression years before symptoms or brain scan changes

A new study by investigators at Mass General Brigham has found that a blood test of plasma phosphorylated tau 217 (pTau217), an Alzheimer's disease biomarker, can predict the progression of amyloid ...
Hoodline

Boston Brain Docs Unveil Blood Test That Flags Alzheimer’s Years Before It Strikes

Boston scientists say a routine blood draw might spot the earliest changes of Alzheimer’s long before the brain lights up on high-tech scans, potentially shifting how and when the disease is caught.

Simple Blood Test May Predict Alzheimer’s Years Before Brain Scans Show Signs

Mass General Brigham researchers used long-term data and a blood test for the biomarker pTau217 to identify the earliest signs of Alzheimer’s disease in cognitively healthy adults.

Blood Test Predicts Alzheimer's Years Before Symptoms, Brain Changes

By Dennis Thompson HealthDay ReporterWEDNESDAY, April 15, 2026 (HealthDay News) — A blood test can predict Alzheimer’s disease progression in a person’s brain years before they show any symptoms of ...
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Tau blood test predicts Alzheimer’s years before brain scans

A new study shows that a blood test measuring plasma phosphorylated tau 217 (pTau217) can identify Alzheimer’s disease risk years before brain scans detect changes. Researchers found elevated pTau217 ...