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Background <p>Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver condition, closely associated with obesity and type 2 diabetes mellitus.</p> Objectives <p>Despite its prevalence, there are no approved pharmacotherapies, making the search for effective treatments crucial.</p> Methods <p>This study investigates the impact of vertical sleeve gastrectomy (VSG) on NAFLD, focusing on changes in bile acid metabolism as a potential therapeutic mechanism. We employed an ApoE−/− mouse model to simulate human NAFLD conditions. Mice were divided into two groups: one underwent VSG and the other served as a control. We monitored body weight, food intake, liver function, lipid profiles, and histological changes in hepatic tissues. Bile acid profiles were analyzed using Ultra Performance Liquid Chromatography coupled with Tandem Mass Spectrometry (UPLC-MS/MS).</p> Results <p>Post-VSG, mice exhibited significant weight loss and reduced food intake. Biochemical analyses showed substantial improvements in liver function tests (ALT and AST), lipid profiles (cholesterol and triglycerides), and glucose regulation. Histological examination revealed marked reductions in hepatic steatosis and inflammation. Notably, VSG led to significant alterations in bile acid profiles, particularly increased primary bile acids and decreased secondary bile acids, correlating with improved liver histology and metabolic parameters.</p> Conclusion <p>Our findings suggest that VSG, beyond its role in weight reduction, significantly improves NAFLD. The surgery alters bile acid metabolism, which may contribute to its therapeutic effects. These results highlight the potential of VSG as a metabolic surgery for NAFLD and open avenues for exploring bile acid-related therapies.</p>

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Transforming NAFLD Management: The Role of Bile Acid Changes Post-Vertical Sleeve Gastrectomy

  • 期刊论文

  • 发表日期：

    2026年2月17日

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  • Yu Song,
  • Hang Li

摘要

Background

Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver condition, closely associated with obesity and type 2 diabetes mellitus.

Objectives

Despite its prevalence, there are no approved pharmacotherapies, making the search for effective treatments crucial.

Methods

This study investigates the impact of vertical sleeve gastrectomy (VSG) on NAFLD, focusing on changes in bile acid metabolism as a potential therapeutic mechanism. We employed an ApoE−/− mouse model to simulate human NAFLD conditions. Mice were divided into two groups: one underwent VSG and the other served as a control. We monitored body weight, food intake, liver function, lipid profiles, and histological changes in hepatic tissues. Bile acid profiles were analyzed using Ultra Performance Liquid Chromatography coupled with Tandem Mass Spectrometry (UPLC-MS/MS).

Results

Post-VSG, mice exhibited significant weight loss and reduced food intake. Biochemical analyses showed substantial improvements in liver function tests (ALT and AST), lipid profiles (cholesterol and triglycerides), and glucose regulation. Histological examination revealed marked reductions in hepatic steatosis and inflammation. Notably, VSG led to significant alterations in bile acid profiles, particularly increased primary bile acids and decreased secondary bile acids, correlating with improved liver histology and metabolic parameters.

Conclusion

Our findings suggest that VSG, beyond its role in weight reduction, significantly improves NAFLD. The surgery alters bile acid metabolism, which may contribute to its therapeutic effects. These results highlight the potential of VSG as a metabolic surgery for NAFLD and open avenues for exploring bile acid-related therapies.