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Relationship between Guillain-Barré syndrome and cardiovascular disease: a bidirectional Mendelian randomization

Tianyi Wang1, Na Li2, Yong Zeng1

  • 1Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

Physiological Genomics
|October 28, 2024
PubMed

Insights

Guillain-Barré syndrome (GBS) significantly increases heart failure (HF) risk. This study found no causal link between GBS and atrial fibrillation (AF) or coronary artery disease (CAD), nor reverse causality from cardiovascular diseases (CVDs) to GBS.

Area of Science:

  • Neuroimmunology
  • Cardiovascular Medicine
  • Genetic Epidemiology

Background:

  • Observational studies suggest an association between Guillain-Barré syndrome (GBS) and cardiovascular diseases (CVDs), but confounding factors may influence these findings.
  • Understanding the causal relationship is crucial for managing GBS patients and preventing potential cardiac complications.

Purpose of the Study:

  • To investigate the potential causal relationships between GBS and major CVDs, including heart failure (HF), atrial fibrillation (AF), and coronary artery disease (CAD).
  • To assess bidirectional causality, examining both the effect of GBS on CVDs and the effect of CVDs on GBS.

Main Methods:

  • A two-sample bidirectional Mendelian randomization (MR) analysis was employed using genetic data from European-ancestry individuals in the UK Biobank.
  • Instrumental variables (IVs) for GBS and CVDs were identified based on genetic variations.
  • Sensitivity analyses, including heterogeneity and horizontal pleiotropy tests, were performed to validate the robustness of the findings.

Main Results:

  • Mendelian randomization analysis revealed a significant causal effect of GBS on an increased risk of developing heart failure (HF) (IVW, P < 0.05).
  • No significant causal relationships were detected between GBS and atrial fibrillation (AF) or coronary artery disease (CAD).
  • No evidence of a causal effect of CVDs (HF, AF, CAD) on the incidence of GBS was found.

Conclusions:

  • Guillain-Barré syndrome is causally associated with an increased risk of heart failure in European populations.
  • Clinical management of GBS patients should consider the heightened risk of heart failure.
  • Further research may explore the underlying mechanisms linking GBS to HF.

Keywords:
Guillain–Barré syndromeMendelian randomizationcardiovascular diseasegenetic causality

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