Serum insulin concentration at baseline and at 60 min of OGTT and 120 min of OGTT (p = 0.03, p = 0.01, p = 0.004; respectively), as well as HOMA-IR (p = 0.03) were higher in the PCOS group in comparison to women without PCOS, whereas the Matsuda index was lower in PCOS women vs. the control group (p = 0.04) (Table 1). This evidence concerns the gene INS and polycystic ovary syndrome.