FADS1 and polycystic ovary syndrome: Of all examined glucose and lipid-related metabolic features in PCOS cases, rs174570 in FADS1-FADS2 showed no association with fasting glucose, fasting insulin, homeostasis model for insulin resistance (HOMA-IR), cholesterol, triglycerides, high density lipoprotein and low density lipoprotein, even after BMI adjustment.