SOD1 and polycystic ovary syndrome: One study has analyzed the changes of antioxidant enzymes and the effects of QUR in DHEA-induced PCOS rats, which showed that superoxide dismutase (SOD), catalase, glutathione-S-transferase (GST), reduced glutathione levels are significantly decreased in PCOS rats, but the levels of these antioxidant enzymes were significantly increased in PCOS rats with QUR treatment (Olaniyan et al., 2020).