In AD, T cells CD4 naïve cell was correlated with BLVRB, C10orf54, CDC37, CHCHD6, GLUL, HOXC4, and PPIL1 in GSE63060; and C10orf54, CHCHD6, GLUL, PFN1, PSMB1, and SYK in GSE63061. This evidence concerns the gene PPIL1 and Alzheimer disease.