New Alzheimer's Blood Test Predicts Who Is Likely to Develop Dementia in 5 to 10 Years

New Alzheimer's blood test predicts who is likely to develop dementia in 5 to 10 years

An Alzheimer's disease blood test measuring the p-tau217 biomarker may predict cognitive decline up to a decade before symptoms appear, according to a new study.

When researchers presenting at the Alzheimer's Association International Conference this week described a blood test that flags people 5 to 10 years before symptoms appear, they were reporting on a panel of plasma biomarkers that correctly predicted cognitive decline in roughly 90 percent of participants tracked across a decade.

A blood test that can flag Alzheimer’s disease five to ten years before memory symptoms appear is moving from research curiosity to clinical reality. Researchers presenting at the Alzheimer’s Association International Conference this week described panels of plasma biomarkers that showed strong predictive accuracy for cognitive decline in participants tracked across a decade, with the most powerful signal coming from a single phosphorylated form…