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Alzheimer's biomarkers now visible up to a decade ahead of symptoms

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Researchers at the University of Pittsburgh have devised a biomarker test that can spot small amounts of clumping tau protein in the brain and cerebrospinal fluid, which lead to Alzheimer's disease.

Catching these clumps early while still in minute quantities can enable effective intervention.

This test can help detect the tangled proteins years in advance of them appearing prominently in brain scans as much as up to a decade.