Two-step blood-test approach helps clarify uncertain brain amyloid status

Blood-based biomarkers (BBMs) are humor tests that tin observe Alzheimer's illness (AD) encephalon changes earlier, much cheaply and much easy than accepted methods specified arsenic Aβ-PET scans, which are costly and person constricted accessibility. However, humor tests bash not ever springiness a wide yes-or-no answer. One of the astir promising humor markers, called p-Tau217, tin permission a important fig of radical with an uncertain diagnosis. Patients wrong this "gray zone" whitethorn request an costly encephalon scan oregon different investigating to find whether amyloid, a cardinal diagnostic of Alzheimer's disease, is present.