Abstract
Purpose
This study was conducted to compare serum xenopsin-related peptide-1 (XP-1) levels in women with polycystic ovary syndrome (PCOS) and in healthy women and to determine the role of XP-1 levels in PCOS.
Methods
Forty patients with PCOS and 38 healthy women were included in the study and matched with age and body mass index. Fasting blood glucose, insulin, high sensitivity C-reactive protein (hs-CRP), XP-1 and total testosterone levels of all participants were measured.
Results
Serum XP-1 levels significantly increased in women with PCOS compared to the control group (6.49 ± 1.57 vs 5.29 ± 1.45 ng/ml, p = 0.001). Serum insulin, hs-CRP, HOMA-IR, total testosterone levels and waist circumference were higher in women with PCOS than in control group. High XP-1 levels were associated with PCOS after adjustment for potential confounders. Receiver operating characteristic (ROC) curve analysis confirmed that the area under ROC curves was 0.703 (95% CI 0.588–0.818, p < 0.002) for XP-1 levels. The optimal cut-off value of XP-1 for detecting PCOS was ≥5.87 ng/ml.
Conclusions
Our results indicate that increased XP-1 levels were associated with PCOS after adjustment for potential confounders, which has been shown to be effective in the function of the insulin signaling pathway.
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Acknowledgements
This study did not receive any specific grant from any funding agency in the public, commercial or not-for-profit sector. This study was supported by Muzaffer Temur.
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MT, ÖY and SU project development, data collection, and manuscript writing. TÇ and SA did all the analyses, with major contribution and guidance about the statistical methods. EPÖ, MC prepared the figures and data collection. All authors contributed to the study by being part of the Steering Committee or as an international collaborative partner, critical analyses, and discussion of the data and to the revisions of the paper. All authors have read and approved the final version. The authors alone are responsible for the views expressed in the paper.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Temur, M., Özün Özbay, P., Aksun, S. et al. Elevated circulating levels of xenopsin-related peptide-1 are associated with polycystic ovary syndrome. Arch Gynecol Obstet 296, 841–846 (2017). https://doi.org/10.1007/s00404-017-4493-7
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DOI: https://doi.org/10.1007/s00404-017-4493-7