Background Polycystic ovary syndrome (PCOS) is a frequent medical condition characterized by both metabolic and reproductive disorders. Different pharmaceutical treatments have been proposed for PCOS. However, side effects of long-term treatments and their probable low efficacy have made complementary and alternative treatments a valuable option. Recent reports have indicated the increased use of complementary treatments. Herbal medicine, as part of complementary medicine, was find introduced in traditional Persian and Chinese medicine. Medicinal herbs have used for a long time in the treatment of gynecological and infertility problems of PCOS patients. In this study, we aimed to review herbal medicines used for PCOS worldwide. Methods PubMed, Embase, Cochrane, and Scopus databases were searched for clinical trials and Randomized Controlled Trials based on related keywords. Data were collected from 1990 to 2019. Results According to a multitude of studies, a wide spectrum of herbs can be used to improve various aspects of PCOS. Herbs such as Cinnamomum verum, Trigonella foenum-graecum L., and Vitex agnus-castus can impact on menstrual and ovulatory dysfunctions, obesity, insulin resistance, lipid-metabolism dysfunction, and androgen excess-related conditions. Conclusion Some plants as natural remedies may have beneficial effects on improving different aspects of PCOS; but further studies are needed to investigate their mechanisms and safety.

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Introduction: COVID-19 is one of the most severe, intestinal, respiratory, and systemic infections in animals and humans. The purpose of this experiment was to evaluate the effect of kelofan syrup on biochemical factors and clinical signs of patients with COVID-19. Materials and Methods: This randomized clinical trial was performed on 60 hospitalized patients with moderate or severe COVID-19. The intervention group received 7.5 cc of kelofan syrup(a traditional Persian medicine product) every 12 hours for one week and the placebo group received 7.5 cc of placebo syrup. Serum levels of white blood cells (WBCs), C - reactive protein (CRP), lactate dehydrogenase (LDH), creatinine, lymphocyte, and clinical outcomes were measured before the beginning of the intervention and on day 7. Results: Kelofan syrup enhanced the white blood cell and reduced creatinine and LDH in the syrup group. However, serum levels of WBC, lymphocyte, CRP, LDH, and creatinine(P > 0.05) in the kelofan group at the end of the study did not significantly change than in the placebo group. Also, clinical outcomes such as fever, respiratory rate, saturated oxygen, cough, dyspnea, myalgia, duration of hospitalization, and fatigue did not change significantly from in the placebo group. Conclusion: our findings indicate that kelofan syrup for seven days could not alter biochemical and clinical outcomes than in the placebo group in patients with COVID-19. However, in some clinical symptoms such as cough, dyspnea, weakness, and biochemical factors like WBC, Cr, and LDH, a significant change was observed at the end of hospitalization in the intervention group.