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Updated: Sep 19, 2025

Sodium Taurocholate Induced Severe Acute Pancreatitis in C57BL/6 Mice
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A Mendelian randomization study investigating the causal effect of simvastatin consumption on pancreatitis risk

Wenfeng Lin1, Qiqi Zheng2, Maddalena Zippi3

  • 1Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China.

Pancreatology : Official Journal of the International Association of Pancreatology (IAP) ... [Et Al.]
|June 19, 2025
PubMed
Abstract

Insights

This study found no causal link between simvastatin use and pancreatitis using genetic analysis. Routine monitoring for pancreatitis in simvastatin users may not be necessary.

Area of Science:

  • Pharmacogenetics
  • Gastroenterology
  • Epidemiology

Background:

  • Simvastatin is a widely used cholesterol-lowering drug.
  • Previous studies have shown inconsistent associations between simvastatin and pancreatitis.
  • Mendelian Randomization (MR) offers a robust method to investigate potential causal relationships.

Purpose of the Study:

  • To determine if simvastatin use causally increases the risk of pancreatitis.
  • To investigate the association between simvastatin and both acute pancreatitis (AP) and chronic pancreatitis (CP).

Main Methods:

  • Utilized UK Biobank for genetic variation identification related to simvastatin.
  • Obtained pancreatitis data from European, FinnGen, and East Asian cohorts.
  • Performed univariate and multivariate Mendelian Randomization analyses, including sensitivity tests.

Main Results:

  • No significant causal association was found between simvastatin use and AP or CP in European populations (P > 0.129 for AP, P > 0.430 for CP).
  • Sensitivity analyses (MR-Egger, weighted median, LOO) and multivariable MR adjusting for confounders confirmed these null findings.
  • Replication analyses in FinnGen and East Asian cohorts corroborated the absence of a causal link.

Conclusions:

  • Genetic evidence does not support a causal relationship between simvastatin and pancreatitis.
  • Routine monitoring for pancreatitis in patients taking simvastatin is likely unnecessary.
Keywords:
Causal effectMendelian randomizationPancreatitisSimvastatinStatin

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