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Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting women of childbearing age causing not only reproductive but also metabolic anomalies. PCOS women present with ovulatory dysfunction, abnormal hormones, hyperandrogenemia, obesity, and hyperinsulinemia. It is a heterogeneous disorder which results from interaction of multiple genes along with environmental factors. Insulin resistance is a central key element contributing to PCOS pathogenesis and is further aggravated by obesity. Insulin regulates metabolic homeostasis and contributes to ovarian steroidogenesis. Candidate gene analyses have dissected genes related to insulin secretion and action for their association with PCOS susceptibility. Although a large number of genomic variants have been shown to be associated with PCOS, no single candidate gene has emerged as a convincing biomarker thus far. This may be …