TNFSF10 and polycystic ovary syndrome: In the MR analyses using the weighted median method, the SCGFb level remains inversely associated with PCOS (OR = 0.747, 95% CI = 0.576 – 0.970, P = 0.029), and the TNF-related apoptosis-inducing ligand (TRAIL) level is also inversely associated with PCOS (OR = 0.828, 95% CI = 0.708 – 0.968, P = 0.018).