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New study finds blood test can predict Alzheimer’s disease progression years before symptoms or brain scan changes

Researchers found that a blood test for the biomarker pTau217 can predict the progression of Alzheimer's disease in cognitively healthy adults, detecting early signals years before symptoms appear. The study's findings may help push back the clock to enable simpler and earlier disease prediction.

SourceMass General Brigham·JournalNature Communications·TypeObservational study·DateApr 14, 2026

NEJM Group launches NEJM Clinician

NEJM Clinician curates highly relevant clinical insights from over 150 peer-reviewed journals to give physicians clear guidance without the noise. The weekly publication delivers summaries and commentary in a concise, 30-minute read, helping healthcare providers stay informed and confident in their decisions.

SourceNEJM Group·JournalNew England Journal of Medicine·DateDec 8, 2025