Abstract

Introduction: Polycystic Ovary Syndrome (PCOS) is a complex reproductive disorder characterised by hyperandrogenism, ovulatory dysfunction and polycystic/enlarged ovary. Although clinical and/or biochemical hyperandrogenism is one of the major features of PCOS, biochemical hyperandrogenism in the form of high testosterone and/or Free Androgen Index (FAI) is rarely observed in the Asian Indians. Aim: To assess various androgens to determine best available biomarker of androgens in PCOS from North India. Materials and Methods: This case-control study was conducted at Department of Reproductive Biology, All India Institute of Medical Sciences, New Delhi, India, between January 2016 to December 2019. During this period 137 female with PCOS and 49 female as control were included. Serum total testosterone (T), FAI, Dehydroepiandrosterone Sulphate (DHEAS), androstenedione and Dihydrotestosterone (DHT) were measured besides assessment of hirsutism using the FerrimanGallwey (FG) scale. Statistical differences were derived using Mann-Whitney U test, Receiver Operating Characteristic (ROC) curve analysis and Spearman’s correlation test. Results: There were 87 PCOS cases with phenotype A, 25 PCOS cases with phenotype B, 10 PCOS cases with phenotype C and 15 PCOS cases with phenotype D. The mean age was 23.7 years in the PCOS group and 26.2 years in the control group. The mean body mass index in the PCOS group was 25.23 kg/m2 and in the control was 22.6 kg/m2 . FG score of ≥9 was observed in 75.9% PCOS cases. High (mean+2SD) levels of T (≥0.51 ng/ mL), FAI (≥2.55), DHEAS (≥309 ug/dL), androstenedione (≥2.2 ng/mL) and DHT (≥462 pg/mL) were observed in 35.29%, 56.25%, 14.18%, 18.62% and 61.38%, cases, respectively. Mean DHT value was 584.27 pg/mL in study group whereas in control was 257.16 pg/mL (p-value <0.0001) and area under ROC curve was 0.895. Similarly, area under ROC curve was 0.86, 0.817, 0.721 and 0.63 for FAI, testosterone, DHEAS and androstenedione, respectively. Spearman’s correlation test of androgens with body mass index, age and FG Score did not find any associations with DHT. Conclusion: Dihydrotestosterone (DHT) is best available biomarker and can be considered as diagnostic biomarker of hyperandrogenemia in PCOS women from north India.

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