To characterize the PCOS, prolactin (CG = 16.6 ng/mL ± 9.1; CAT =17.4 ng/mL ± 12.7; IAT = 16.8 ng/mL ± 11.7), 17-OHP (CG = 106.0 uUI/mL ± 38.0; CAT = 98.0 uUI/mL ± 47.0; IAT = 86.0 uUI/mL ± 40.0), and TSH (CG = 2.38 ng/dL ± 1.18; CAT =1.76 ng/dL ± 0.67; IAT = 2.64 ng/dL ± 1.60) were measured. The gene discussed is CAT; the disease is polycystic ovary syndrome.