Blood Test Signals Dementia Risk Decades Before Onset
TL;DR
UC San Diego researchers identify plasma phosphorylated tau 217 (p-tau217) as a blood biomarker that predicted future dementia risk decades before symptoms, especially in older women and APOE ε4 carriers; its predictive power varies with age and hormone therapy history, suggesting potential for earlier prevention and monitoring, though not yet ready for routine clinical use.
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