Biomarkers experts stories

Jul 15, 2026

Blood Test Using P-Tau217 Biomarker Can Predict Alzheimer's Risk Years Before Symptoms Appear, Study Finds

A new study demonstrates that a blood test measuring p-tau217 levels can identify healthy older adults at high risk of developing Alzheimer's symptoms within five to 10 years, potentially enabling early intervention as prevention trials advance.

Jul 15, 2026·5 sources

Apr 14, 2026

Blood Test Predicts Alzheimer's Progression Years Before Symptoms or Brain Scan Changes

Mass General Brigham researchers found that plasma phosphorylated tau 217 (pTau217) blood test can predict progression of amyloid PET scans years before symptoms appear or brain imaging shows changes.

Apr 14, 2026·1 source

Apr 6, 2026

UCLA Researchers Develop Blood Test to Detect Multiple Cancers and Diseases Simultaneously

Scientists at UCLA have developed a simple and cost-effective blood test that shows promise in early studies for detecting multiple cancers, various liver conditions, and organ abnormalities from a single blood sample.

Apr 6, 2026·1 source

Top claims

▪Cognitively healthy older adults with very high baseline levels of the p-tau217 biomarker face a 38% absolute risk of developing cognitive impairment within five years.
▪The U.S. Food and Drug Administration began permitting the use of p-tau217 in May 2025, but only to help diagnose individuals aged 55 or older who are already showing early signs of cognitive decline.
▪A blood test measuring the phosphorylated tau 217 biomarker can predict the risk of developing cognitive impairment in healthy older adults years before symptoms appear.

Subtopics

Biomarkers & bloodwork testing Preventive longevity physicians Brain health & dementia researchers Brain longevity

Alzheimer’s & dementia

Age related cognitive decline

Related timelines

Biomarkers experts stories

Blood Test Using P-Tau217 Biomarker Can Predict Alzheimer's Risk Years Before Symptoms Appear, Study Finds

Blood Test Predicts Alzheimer's Progression Years Before Symptoms or Brain Scan Changes

UCLA Researchers Develop Blood Test to Detect Multiple Cancers and Diseases Simultaneously

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