CAUSAL ASSOCIATION BETWEEN MEDICATION USE AND SEPSIS: A TWO-SAMPLE MENDELIAN RANDOMIZATION STUDY

Mingfen Sun1, Yi Chen2, Zhaoquan Jin1

  • 1Department of Emergency Medicine, The First People's Hospital of Changzhou, Changzhou, China.

Shock (Augusta, Ga.)
|March 18, 2025
PubMed

Insights

Genetically predicted diuretic use may increase sepsis risk. Evidence for other medications, including diabetes drugs and thyroid preparations, was inconclusive in this Mendelian randomization study.

Area of Science:

  • Pharmacogenomics
  • Infectious Disease Epidemiology

Background:

  • Sepsis is a life-threatening condition with significant morbidity and mortality.
  • Understanding the influence of prior medication use on sepsis risk is crucial for prevention and treatment strategies.

Purpose of the Study:

  • To investigate the potential causal relationship between genetically predicted medication use and the risk of developing sepsis.
  • To differentiate between potential associations and causal links using robust genetic methods.

Main Methods:

  • Employed a two-sample Mendelian randomization (MR) design using summary data from genome-wide association studies (GWAS).
  • Utilized Inverse Variance Weighted (IVW), weighted median, and MR-Egger regression methods for primary analysis.
  • Conducted sensitivity analyses including MR-Egger, MR-PRESSO, Cochran's Q, and leave-one-out methods to assess robustness and rule out pleiotropy.

Main Results:

  • Initial analysis suggested potential causal links between genetically predicted use of diuretics, drugs used in diabetes, thyroid preparations, and adrenergics with increased sepsis risk.
  • After adjusting for confounders, only genetically predicted diuretic use remained significantly associated with a higher risk of sepsis (OR = 1.17, P = 0.018).
  • Sensitivity analyses indicated minimal evidence of horizontal pleiotropy or heterogeneity influencing the association between diuretic use and sepsis.

Conclusions:

  • Prior use of diuretics may causally increase the risk of sepsis.
  • Evidence for a causal association between the use of other investigated medications (e.g., diabetes drugs, thyroid preparations) and sepsis risk was not supported by this study.
  • The findings highlight diuretics as a potential factor influencing sepsis risk, warranting further clinical investigation.

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