More recent research in genome-wide association studies (GWAS) has implicated that single-nucleotide polymorphisms (SNPs) among 11 genes appear to affect the risk of AD, encompassing the PICALM, MS4A6E, MS4A4E, MS4A4A, EPHA1, CR1, CLU, CD33, CD2AP, BIN1, APOE, and ABCA7 gene (7–11). The gene discussed is EPHA1; the disease is Alzheimer disease.