Comparative analysis using violin plots (Figure 5B) revealed significant increases in resting CD4 memory T cells (p = 1.13 × 10−3), resting NK cells (p = 0.02), monocytes (p = 1.6 × 10−4), M2 macrophages (p = 0.03), resting dendritic cells (p = 0.02), resting mast cells (p = 0.04), and neutrophils (p = 0.03) in AD compared with ND. This evidence concerns the gene CD4 and Alzheimer disease.