Rong Tang1,2, Xiaohong Ding3, Jianghu Zhu1,2,4. 1. Department of Pediatrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China. 2. The Second School of Medicine, Wenzhou Medical University, Wenzhou, China. 3. The First Clinical Medical School, Wenzhou Medical University, Wenzhou, China. 4. Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China.
Abstract
Although the pathogenesis of Polycystic Ovary Syndrome (PCOS) is still unclear, the disturbance of hypothalamic-pituitary-gonadal (HPG) axis is suspected to be the main culprit in the development of PCOS. Kisspeptin, a hypothalamic peptide encoded by the KISS1 gene, is widely reported as a key factor in the regulation of luteinizing hormone (LH)/ follicular-stimulating hormone (FSH) secretion, which may be potentially involved with the development of PCOS. Objective: The objective of this study is to summarize the existing knowledge in the literature in terms of the circulating kisspeptin concentration in PCOS women, kisspeptin and metabolic profiles in PCOS women and kisspeptin expression in PCOS animal models. Method: A systematic literature search was conducted using "Pubmed," "Embase," "Web of Science" for all English language articles published up to July 2018 with the terms "PCOS," "Stein-Leventhal Syndrome," "Polycystic ovary syndrome," "metastins" and "kisspeptin". Conclusion: Overall, kisspeptin levels are higher in the PCOS population, which supports the hypothesis that an over-active KISS1 system leads to enhanced HPG-axis activity, thereby causing irregular menstrual cycles and excessive androgen release in PCOS women.
Although the pathogenesis of Polycystic Ovary Syndrome (PCOS) is still unclear, the disturbance of hypothalamic-pituitary-gonadal (HPG) axis is suspected to be the main culprit in the development of PCOS. Kisspeptin, a hypothalamic peptide encoded by the KISS1 gene, is widely reported as a key factor in the regulation of luteinizing hormone (LH)/ follicular-stimulating hormone (FSH) secretion, which may be potentially involved with the development of PCOS. Objective: The objective of this study is to summarize the existing knowledge in the literature in terms of the circulating kisspeptin concentration in PCOSwomen, kisspeptin and metabolic profiles in PCOSwomen and kisspeptin expression in PCOS animal models. Method: A systematic literature search was conducted using "Pubmed," "Embase," "Web of Science" for all English language articles published up to July 2018 with the terms "PCOS," "Stein-Leventhal Syndrome," "Polycystic ovary syndrome," "metastins" and "kisspeptin". Conclusion: Overall, kisspeptin levels are higher in the PCOS population, which supports the hypothesis that an over-active KISS1 system leads to enhanced HPG-axis activity, thereby causing irregular menstrual cycles and excessive androgen release in PCOSwomen.
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