GLP-1 Receptor Agonist Effects on Lipid and Liver Profiles in Patients with Nonalcoholic Fatty Liver Disease: Systematic Review and Meta-Analysis

Can J Gastroenterol Hepatol. 2021 Nov 12;2021:8936865. doi: 10.1155/2021/8936865. eCollection 2021.

ABSTRACT

AIMS: This meta-analysis of randomized placebo-controlled clinical trials assessed the effect of glucose-like peptide-1-receptor agonists (GLP-1RA) on the lipid profile and liver enzymes in patients with nonalcoholic fatty liver disease (NAFLD).

MATERIALS AND METHODS: Randomized placebo-controlled trials investigating GLP-1RA on the lipid profile and liver enzymes in patients with NAFLD were searched in PubMed-Medline, Scopus, Web of Science, and Google Scholar databases (from inception to January 2020). A random-effects model and a generic inverse variance method were used for quantitative data synthesis. Sensitivity analysis was conducted. Weighted random-effects meta-regression was performed on potential confounders on lipid profile and liver enzyme concentrations.

RESULTS: 12 studies were identified (12 GLP-1RA arms; 677 subjects) that showed treatment with GLP-1RA reduced alanine transaminase (ALT) concentrations (WMD = -10.14, 95%CI = [-15.84, -0.44], P < 0.001), gamma-glutamyl transferase (GGT) (WMD = -11.53, 95%CI = [-15.21,-7.85], P < 0.001), and alaline phosphatase (ALP) (WMD = -8.29, 95%CI = [-11.34, -5.24], P < 0.001). Aspartate aminotransferase (AST) (WMD = -2.95, 95% CI = [-7.26, 1.37], P=0.18) was unchanged. GLP-1 therapy did not alter triglycerides (TC) (WMD = -7.07, 95%CI = [-17.51, 3.37], P=0.18), total cholesterol (TC) (WMD = -1.17 (-5.25, 2.91), P=0.57), high-density lipoprotein (HDL-C) (WMD = 0.97, 95%CI = [-1.63, 3.58], P=0.46), or low-density lipoprotein (LDL-C) (WMD = -1.67, 95%CI = [-10.08, 6.74], P=0.69) in comparison with controls.

CONCLUSION: The results of this meta-analysis suggest that GLP-1RA treatment significantly reduces liver enzymes in patients with NAFLD, but the lipid profile is unaffected.

PMID:34805029 | PMC:PMC8604595 | DOI:10.1155/2021/8936865

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