5 years ago

Effects of resveratrol supplementation on risk factors of non-communicable diseases: A meta-analysis of randomized controlled trials.

The results of randomized controlled trials (RCTs) investigating resveratrol supplementation on risk factors of non-communicable diseases (NCDs) have been inconsistent. The present meta-analysis aimed to quantitatively evaluate the effects of resveratrol intervention on risk factors of NCDs. PubMed and Scopus databases were searched up to June 2017. Weighted mean differences were calculated for net changes in risk factors of NCDs by using a random-effects model. Pre-specified subgroup and univariate meta-regression analyses were carried out to explore the sources of heterogeneity. Twenty-nine studies (30 treatment arms) with 1069 participants were identified. Resveratrol supplementation significantly reduced the concentrations of fasting glucose (-4.77 mg/dL; 95% CI: -9.33 to -0.21 mg/dL; P = 0.040), total cholesterol (TC) (-9.75 mg/dL; 95% CI: -17.04 to -2.46 mg/dL; P = 0.009), and C-reactive protein (CRP) (-0.81 mg/L; 95% CI: -1.42 to -0.21 mg/L; P = 0.009). Resveratrol intervention exerted significant reductions in systolic blood pressure (SBP) and diastolic blood pressure (DBP) in subjects with type 2 diabetes mellitus (T2DM). Subgroup analysis also showed that the trials with resveratrol intervention ≥3 months significantly reduced the low-density lipoprotein cholesterol (LDL-C), DBP, and glycated hemoglobin (HbA1c) values. The results did not support that resveratrol intervention had favorable effects in altering high-density lipoprotein cholesterol (HDL-C), triglyceride (TAG), and homeostasis model assessment of insulin resistance (HOMA-IR). The present study provides substantial evidence that resveratrol supplementation has favorable effects on several risk factors of NCDs.

Publisher URL: http://doi.org/10.1080/10408398.2017.1349076

DOI: 10.1080/10408398.2017.1349076

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