A comparative analysis of four different patient groups (AD, rpAD, VaD, and VE) confirmed the main observations from the study cohort, since tau (p < 0.05), p-tau (p < 0.01), and Aβ42 (p < 0.001) were differentially regulated between AD and VaD samples (Figures 2A–C). This evidence concerns the gene MAPT and Alzheimer disease.