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The Effect of Helicobacter pylori Eradication on Lipid Levels: A Meta-Analysis
Jun Watanabe1, Masato Hamasaki1, Kazuhiko Kotani1
1Division of Community and Family Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-City, Tochigi 329-0498, Japan.
Insights
H. pylori eradication significantly increases high-density lipoprotein cholesterol (HDL-C) and triglyceride (TG) levels. This study highlights the impact of eradicating H. pylori infection on lipid profiles and cardiovascular health.
Area of Science:
- Cardiovascular Health
- Infectious Diseases
- Lipid Metabolism
Background:
- H. pylori infection is linked to cardiovascular diseases, but the role of lipids in this association is not fully understood.
- Understanding lipid level changes after H. pylori eradication is crucial for assessing cardiovascular risk.
Purpose of the Study:
- To review and analyze the changes in circulating lipid levels following H. pylori eradication.
- To synthesize findings from randomized controlled trials (RCTs) and non-RCTs on H. pylori eradication and lipid profiles.
Main Methods:
- A systematic literature search was conducted on the PubMed database up to December 2020.
- Meta-analyses (inverse variance-weighted, random-effects) were performed on data from 24 studies (4 RCTs, 20 non-RCTs) involving 5270 participants.
Main Results:
- H. pylori eradication led to increased levels of high-density lipoprotein cholesterol (HDL-C) (MD 2.28 mg/dL) and triglycerides (TG) (MD 3.22 mg/dL).
- Low-density lipoprotein-cholesterol (LDL-C) levels showed minimal change (MD -2.33 mg/dL).
- Elevated HDL-C findings were robust in RCT-only analyses, unlike TG changes.
Conclusions:
- H. pylori eradication positively impacts lipid profiles, specifically increasing HDL-C levels.
- Further research is required to determine the clinical implications of these lipid changes on cardiovascular disease outcomes.
Abstract:
Introduction: Helicobacter pylori (H. pylori) infection is positively associated with cardiovascular diseases, but the involvement of lipids in this association remains unclear. The present study reviewed the changes in circulating lipid levels following H. pylori eradication. Methods: A PubMed database was searched until December 2020 to identify randomized control trials (RCTs) and non-RCTs investigating the effect of H. pylori eradication on the lipid levels in inverse variance-weighted, random-effects meta-analyses. Results: A total of 24 studies (four RCTs and 20 non-RCTs) with 5270 participants were identified. The post-eradication levels were increased for high-density lipoprotein cholesterol (HDL-C; mean difference (MD) 2.28 mg/dL, 95% confidence interval (CI) 1.90 to 2.66) and triglyceride (TG; MD 3.22 mg/dL, 95% CI 1.13 to 5.31) compared with the pre-eradication levels. H. pylori eradication resulted in little to no difference in the low-density lipoprotein-cholesterol levels (MD -2.33 mg/dL, 95% CI -4.92 to 0.26). In the analyses of RCTs only, the findings for elevated HDL-C levels, but not TG, were robust. Conclusions: H. pylori eradication increases the HDL-C levels. Further studies are needed to elucidate the effects of lipid changes following H. pylori eradication on cardiovascular diseases.
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