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Resveratrol supplementation efficiently improves endothelial health: A systematic review and meta‐analysis of randomized controlled trials

We perform a systematic review and meta‐analysis of randomized controlled trials (RCTs) to quantify the effect of resveratrol supplementation on endothelial function. A comprehensive search was performed in electronic databases including PubMed, Scopus, Web of Science, and Cochrane Library up to February 2021 with no limitation in time and language. A meta‐analysis of eligible studies was performed using a random‐effects model to estimate the pooled effect size of flow‐mediated dilation (FMD), intracellular adhesion molecule‐1 (ICAM‐1), vascular adhesion molecule‐1 (VCAM‐1), fibrinogen, and plasminogen activator inhibitor‐1 (PAI‐1). In total, 21 arms from 17 studies were included. The meta‐analysis results showed that resveratrol significantly change the concentrations of FMD (WMD: 1.43%; 95% CI: 0.98 to 1.88, p < .001) and ICAM‐1 (WMD: −7.09 ng/ml, 95% CI: −7.45 to −6.73, p < .001). However, VCAM‐1, fibrinogen, and PAI‐1 did not change significantly after resveratrol supplementation. In conclusion, the results of this study suggest that resveratrol supplementation can improve endothelial function which could be important, especially in patients with cardiovascular diseases.