NKX3-1 and posterior cortical atrophy: In another study, the NKX3.1 rs11781886 variant (CC,CC + CT) genotypes combined with vitamin E or selenium treatment increased PCa risk in a cohort including African-Americans.72 Polymorphisms located near BUD13, ZNF259, and APOA5 genes play a role in vitamin E transport and metabolism and their associated variants modify PCa risk.