BRD2 and polycystic ovary syndrome: In addition, we examined the association between the three polymorphisms of HSD11B1 and H6PD and the clinical features of PCOS, we found a significant difference in FSH level between AA and AG genotypes of rs6688832 in H6PD. Compared with AA genotype, we found the PCOS patients with AG genotype had a lower level of FSH.