No statistically significant difference was identified in the plasma visfatin levels of the participants with and without PCOS (84.77±1.35 vs. 99.48±1.38 ng/ml; P=0.111), either in participants with or without IR (91.84±1.28 vs. 91.84±1.45 ng/ml; P=0.971; Fig. 1). The gene discussed is NAMPT; the disease is polycystic ovary syndrome.