Tumor necrosis factor alpha promoter‐308G/A polymorphism in Mexican patients with patchy alopecia areata

Abstract

Our data suggest that there is a plausible association between the presence of the TNFα-308G/A polymorphism and a higher susceptibility for developing patchy AA. This risk might be due to overproduction of TNFα, which would facilitate an autoimmune response against the hair follicle.