Genomic and proteomic evidence for hormonal and metabolic foundations of polycystic ovary syndrome
Moolhuijsen, L. M. E.; Zhu, J.; Mullin, B. H.; Pujol-Gualdo, N.; Actkins, K. V.; Mack, J. A.; Rao, H.; Trivedi, B.; Kentistou, K. A.; Zhao, Y.; Westergard, D.; Tyrmi, J. S.; Thorleifsson, G.; Zhang, Y.; Wittemans, L.; DeVries, A.; Brewer, K.; Sisk, R.; Danning, R.; Preuss, M. H.; Jones, M. R.; Ruth, K. S.; Andersen, M.; Azziz, R.; Banasik, K.; Boehnke, M.; Broer, L.; Brunak, S.; Chan, Y.-M.; Chasman, D. I.; Daly, M.; Ehrmann, D. A.; Fauser, B. C.; Fritsche, L. G.; Hayes, M. G.; He, C.; Huang, H.; Kowalska, I.; Kraft, P.; Legro, R. S.; Lin, N.; Loos, R. J.; Louwers, Y. V.; Magi, R.; McCarthy, M
Show abstract
Polycystic ovary syndrome (PCOS) and its underlying features remain poorly understood. In this genetic and proteomic study, we expand the number of genetic loci from 19 to 29, and identify 31 associated plasma proteins. Many risk-increasing loci were associated with later age at menopause, underscoring the reproductive longevity related to a larger functional ovarian reserve. Hormonal regulation in the aetiology of this condition, through metabolic and reproductive features, was emphasised. The proteomic analysis highlighted perturbations of metabolically-related biology that are typical in women with PCOS. A PCOS polygenic risk score was associated with adverse cardio-metabolic outcomes, with differing contributions of testosterone and BMI in women and men. Finally, while oligo- and anovulatory infertility are characteristic features of PCOS, we observed no impact of PCOS susceptibility on childlessness. We suggest that PCOS susceptibility confers balanced pleiotropic influences on fertility in women, and life-long adverse metabolic consequences in both sexes.
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