Within PCOS patients, the PCOS-HB group was featured as higher I0 and I120 while lower dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate (DHEA-S), FKBP5-Met, FKBP5-Met2, and luteinizing hormone (LH) than the PCOS-LB group. Here, FKBP5 is linked to polycystic ovary syndrome.