Alzheimer's blood tests may predict symptoms years in advance, but experts urge caution

Alzheimer's blood tests may predict symptoms years in advance, but experts urge caution

Alzheimer's blood tests show promise for earlier detection, but experts warn about accuracy limitations, false positives and the need for comprehensive clinical evaluation.

Alzheimer’s blood tests may predict symptoms years in advance, but experts urge caution

A new wave of blood tests aiming to predict Alzheimer’s risk may offer hope for earlier detection — but they could also raise concerns about the accuracy and reliability of the results.A recent study funded by the National Institutes of Health evaluated a blood test measuring levels of p-tau217 (phosphorylated tau 217), a protein that accumulates in the brain during Alzheimer’s disease.In a group of over 600 older adults without symptoms, repeat…