Meta-analysis2018Open access

Omega-3 polyunsaturated fatty acid supplementation and non-alcoholic fatty liver disease: A meta-analysis of randomized controlled trials

Yan JH, Guan BJ, Gao HY, Peng XE

Medicine · 90 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Government
National Natural Science Foundation of China
Grants
National Natural Science Foundation of China (81473047)

Based on 1 listed funder(s) and full-text disclosure statement.

Publication

Published
2018-09-01 · Medicine (Baltimore) · vol. 97 · issue 37 · p. e12271
Publisher
Wolters Kluwer
Cited
137 citations · more than 99% of similar papers · 9.5× the field average
Impact
Top 10% most cited in its field
References
48 works
Access
Open access (journal) · CC-BY-NC
Research areas
Liver Disease Diagnosis and Treatment · Fatty Acid Research and Health · Liver Disease and Transplantation
Keywords
Medicine, Polyunsaturated fatty acid, Cochrane Library, Meta-analysis, Internal medicine, Nonalcoholic fatty liver disease, Fatty liver, Randomized controlled trial, Gastroenterology, Insulin resistance, Publication bias, Adverse effect, Fatty acid, Disease, Insulin, Biochemistry, Biology
MeSH
humans, insulin resistance, blood glucose, fatty acids, omega-3, triglycerides, liver function tests, body weights and measures, dietary supplements, randomized controlled trials as topic, non-alcoholic fatty liver disease

4 authors

From CN

  • Jianhui YanFujian Medical University; Fujian Provincial Cancer Hospital
  • Bingjie GuanFujian Medical University
  • Haiyan GaoFujian Medical University
  • Xian‐E Peng · correspondingFujian Medical University

Abstract

Background

Clinical trials examining the therapeutic benefit of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) on nonalcoholic fatty liver disease (NAFLD) have reported inconsistent results. We performed a meta-analysis of randomized controlled trials (RCTs) examining the effect of ω-3 PUFA supplementation on NAFLD, and provide substantial evidence on whether ω-3 PUFA supplementation has a favorable effect for treating NAFLD.

Methods

We searched the PubMed, Cochrane Library, Springer Link, China National Knowledge Infrastructure (CNKI), Wanfang, and Chinese Scientific and Technological Journal (VIP) databases for RCTs on oral ω-3 PUFA supplementation in patients with NAFLD. The data were pooled; meta-analyses were conducted using random-effect or fixed-effect models.

Results

Eighteen studies involving 1424 patients were included. We found a significant benefit for ω-3 PUFAs vs control for liver fat, alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transferase, triglycerides, insulin resistance, and glucose. However, there was significant interstudy heterogeneity. Subgroup and regression analyses showed no significantly clear methodologic discrepancy. Publication bias and serious adverse events were not detected.

Conclusions

Our meta-analysis suggests that ω-3 PUFA supplementation may decrease liver fat and hepatic enzyme parameters. However, more large-scale, well-designed RCTs are needed to confirm the effect of ω-3 PUFA supplementation on these parameters.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY-NC).

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