GSTO1*E155del polymorphism associated with increased risk for late-onset Alzheimer's disease: Association hypothesis for an uncommon genetic variant

► We investigate the role of GSTO gene polymorphisms in AD risk. ► We analyze two common polymorphisms and two uncommon variants in GSTO genes. ► The GSTO1*E155del variants showed significant differences between cases and controls. ► Our study highlights an association between AD and an uncommon polymorphism.