To detect CTE while alive, a test for another brain disease may help

July 31, 2026

WashU Medicine researcher Kanta Horie, PhD, places a sample in a mass spectrometer that measures protein levels in blood plasma and other fluids. Horie co-led the development of a blood test for Alzheimer’s disease that diagnoses and stages the disease by using mass spectrometry to measure the level of a protein called MTBR-tau243.