• Min Liu, Hongqiu Zhu, Xiaodan Hu, Ying Zhu, and Haiyan Chen.
• Hospital of Chengdu University of Traditional Chinese Medicine.
• Medicine (Baltimore). 2020 Nov 13; 99 (46): e23130.

BackgroundPolycystic ovary syndrome (PCOS) is one of the common gynecological endocrine system diseases. It is characterized by excessive androgen, rare or anovulation, and polycystic ovary morphology. Coenzyme Q10 (CoQ10) is a fat-soluble natural vitamin, which has a continuous oxidation-reduction cycle and is an effective antioxidant that can protect ovaries from oxidative damage. This study aims to systematically summarize and analyze the scientific literatures on glucose metabolism index, lipid profiles, inflammatory factor, and sex hormone level of PCOS patients treated with CoQ10 to provide a reference basis for clinical treatment.MethodsWe will retrieve the following electronic databases from the built-in until March 2021: Cochrane Library, PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure (CNKI), Chinese Biomedical Literature Database (CBM), Clinical Trials. gov, Chinese Scientific Journal Database (VIP), and Wang-fang database. Two reviewers will independently scan the articles searched, de-duplication, filtering, quality assessment. Differences will be resolved by discussion between the 2 reviewers or by a third reviewers. All analyses were systematic to evaluate interventions based on the Cochrane handbook. Meta-analysis and/or subgroup analysis will be performed on the basis of the included studies.DiscussionThis review will be to investigate the efficacy of CoQ10 supplementation on glucose metabolism, lipid profiles, and biomarkers of inflammation in women with PCOS and provide a high-quality synthesis to assess whether CoQ10 is an effective and safe intervention for PCOS. The results of the analysis will be published in a scientific journal after peer-review.Systematic Review RegistrationINPLASY 2020100013.

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