The Effect of Berberine on Reproduction and Metabolism in Women with Polycystic Ovary Syndrome: A Systematic Review and Meta-Analysis of Randomized Control Trials
Abstract
Purpose To assess the efficacy and safety of berberine on reproductive endocrine and metabolic outcomes in women with polycystic ovary syndrome (PCOS). Methods PubMed (from 1950), the Cochrane Library, the CNKI (from 1979), the VIP (from 1989), and the Wanfang Data (from 1990) and the reference lists of the retrieved articles were searched for randomized controlled trials in human beings with the search terms including “polycystic ovary syndrome/PCOS” and “berberine/BBR/Huangliansu (in Chinese)/Xiao bojian (in Chinese)” till 30 May 2019. Relevant indicators were collected and the data were analyzed by using RevMan 5.3 software. Results Eventually, a total of 12 randomized controlled trials were included in this systematic review. Our study suggested that berberine had similar live birth rates compared with placebo or metformin and lower live birth rates (RR: 0.61, 95% CI: 0.44 to 0.82) compared with letrozole. There was a significant difference between berberine and placebo and between berberine and no treatment in terms of decreasing total testosterone and luteinizing hormone to follicle-stimulating hormone (LH/FSH) ratio (8 RCTs, 577 participants, MD: −0.34, 95% CI: −0.47 to −0.20; 3 RCTs, 179 participants, MD: −0.44, 95% CI: −0.68 to −0.21, respectively). Berberine was associated with decreasing total cholesterol (3 RCTs, 201 participants; MD: −0.44, 95% CI: −0.60 to −0.29), waist circumference (3 RCTs, 197 participants, MD: −2.74, 95% CI: −4.55 to −0.93), and…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 577 participants or records.
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