Prolactin, FSH, and HDL-C levels were significantly lower in PCOS compared with non-PCOS women (235.74 versus 275.13 mIU/L, 6.62 versus 7.82 IU/L, and 1.29 versus 1.40 mmol/L, respectively), whereas blood pressure, LH, LH/FSH, testosterone (T), FINS, HOMA-IR, HOMA-β, TG, TC, LDL-C, AST and ALT remained higher in PCOS versus controls after correcting for age and BMI. The gene discussed is PRL; the disease is polycystic ovary syndrome.