We have evaluated the recently developed blood-based Fujirebio Lumipulse Aβ42/Aβ40 ratios, p-Tau181, and the Quanterix/Simoa AlZPath p-Tau217 assays in AD subjects (n=63) and healthy controls (n= 24), to characterize the discriminatory and correlative relationships for each assay within and between clinical diagnosis groupings