Complementary therapies in medicine · 2020
Efficacy of resveratrol supplementation on liver enzymes in patients with non-alcoholic fatty liver disease: A systematic review and meta-analysis.
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Wei Shumin, Yu Xiaoying
Аннотация
OBJECTIVE: Randomized clinical trials (RCTs) examining the effects of resveratrol supplementation on liver enzymes in non-alcoholic fatty liver disease (NAFLD) have reported conflicting results. The aim of this systematic review was to summarize evidence of the effects of resveratrol supplementation on alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels in patients with NAFLD by performing a meta-analysis of RCTs.
METHODS: PubMed, Cochrane Library, Scopus, and Web of Science databases were electronically explored from inception to August 2020 for all relevant studies. Random effect models were used to estimate liver enzymes changes between resveratrol supplementation and control groups by evaluating the weighted mean differences (WMD) with 95 % confidence intervals (CIs).
RESULTS: Five trials with a total of 216 patients were included in the meta-analysis. The pooled results showed that resveratrol supplementation did not result in significant changes in serum ALT (WMD= -2.48 IU/L; 95 % CI: -12.30, 7.34; P = 0.62), and AST (WMD = -2.90 IU/L; 95 % CI: -9.77, 3.98; P = 0.40) concentrations. Subgroup analysis revealed a significant reduction in serum ALT and AST concentrations in the participants with mean age <45 years, and studies with intervention dosage <1000 mg/day. In addition, ALT and AST levels were decreased significantly in studies with duration >12 weeks and participants with BMI < 30 kg/m2, respectively.
CONCLUSIONS: The overall results indicated that resveratrol supplementation did not affect liver enzymes in patients with NAFLD. More studies examining the effect of resveratrol supplementation on liver enzymes are needed in the future.
METHODS: PubMed, Cochrane Library, Scopus, and Web of Science databases were electronically explored from inception to August 2020 for all relevant studies. Random effect models were used to estimate liver enzymes changes between resveratrol supplementation and control groups by evaluating the weighted mean differences (WMD) with 95 % confidence intervals (CIs).
RESULTS: Five trials with a total of 216 patients were included in the meta-analysis. The pooled results showed that resveratrol supplementation did not result in significant changes in serum ALT (WMD= -2.48 IU/L; 95 % CI: -12.30, 7.34; P = 0.62), and AST (WMD = -2.90 IU/L; 95 % CI: -9.77, 3.98; P = 0.40) concentrations. Subgroup analysis revealed a significant reduction in serum ALT and AST concentrations in the participants with mean age <45 years, and studies with intervention dosage <1000 mg/day. In addition, ALT and AST levels were decreased significantly in studies with duration >12 weeks and participants with BMI < 30 kg/m2, respectively.
CONCLUSIONS: The overall results indicated that resveratrol supplementation did not affect liver enzymes in patients with NAFLD. More studies examining the effect of resveratrol supplementation on liver enzymes are needed in the future.