SLC23A1 and Alzheimer disease: Only the SLC23A1 rs33972313 variant was significantly associated with AD proxy phenotype in UK Biobank GWAS datasets (P = 4.71E−05 for AD proxy phenotype in maternal AD and P = 1.14E−03 for AD proxy phenotype in both maternal AD and paternal AD) using the adjusted significance threshold P < 0.05/11 = 4.55E−03.