Efficacy of omega-3 polyunsaturated fatty acids on hormones, oxidative stress, and inflammatory parameters among polycystic ovary syndrome: a systematic review and meta-analysis
Abstract
BACKGROUND: There is a close relationship between hormones, oxidative stress, and inflammatory factors and polycystic ovary syndrome (PCOS). This meta-analysis was conducted to evaluate the changes in hormones, oxidative stress, and inflammatory factors of PCOS patients who were supplemented with omega-3 polyunsaturated fatty acids (n-3 PUFAs).
METHODS: The databases of PubMed, Cochrane Library, Embase, and Web of Science were searched from inception to February 2021. We have included all randomized controlled trials (RCTs) that reported the n-3 PUFA treatment in PCOS. Weighted mean differences (WMD) and 95% confidence interval (CI) were calculated, and either the fixed effects model or random effects model was used.
RESULTS: 314 studies were initially identified, and 10 RCTs with 610 patients were finally included in the current study. Results suggested that PCOS patients with n-3 PUFAs supplementation may have a reduction in C-reactive protein (CRP; -8.97 mg/dL; 95% CI: -17.66 to -0.28 mg/dL; P=0.04; I2=99%); serum malondialdehyde (MDA; -0.40 mg/dL; 95% CI: -0.56 to -0.25 mg/dL; P<0.00001; I2=42); luteinizing hormone (LH; -1.33 mg/dL; 95% CI: -2.63 to -0.04 mg/dL; P=0.04; I2=0%); serum total testosterone (TT; -0.11 mg/dL; 95% CI: -0.18 to -0.04 mg/dL; P=0.02; I2=73%); and an increase in total antioxidant capacity (TAC; 72.24 mg/dL; 95% CI: 22.32 to 122.16 mg/dL; P=0.005; I2=50%) and serum sex hormone binding globulin (SHBG; 0.68 mg/dL; 95% CI: 0.06 to 1.31 mg/dL; P=0.03;…
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: 610 participants or records.
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