HLA-DPB1 and Alzheimer disease: The G polymorphism for rs9277534 SNP located in the 3’ UTR of the DPB1 gene, reflecting higher expression, was associated with AD (OR = 1.45, p = 4.71e-04), while the alternative, A, reflecting lower expression, was associated with protection (OR = 0.69, p = 4.71e-04) (Table 6).