Heart failure & cardiomyopathies

Gut Microbiota and Risk of Heart Failure in European Population—A Comprehensive Mendelian Randomization Study

ESC Heart FailPublished Two-sample Mendelian randomization (MR) analysis

Authors' conclusion

We identified seven intestinal microbiomes that were causally associated with HF at the level of gene prediction. This study will help with the discovery of potential preventive and therapeutic targets for HF.

Study context

Population
Individuals of European ancestry; genetic variants for 196 bacterial taxa from MiBioGen consortium (exposure) and heart failure (HF) summary statistics from HERMES consortium (outcome)
Comparison
Genetically predicted gut microbiota taxa and risk of HF
Outcome
Microbiomes associated with HF

Main finding

As reported in the abstract

  • Seven microbiomes were found to be associated with HF

Further findings

OutcomeORP value
HF risk, per taxon (higher risk)Order_Selenomonadales · higher risk of HF1.11P = 0.024
HF risk, per taxon (higher risk)Family_Peptococcaceae · higher risk of HF1.07P = 0.045
HF risk, per taxon (higher risk)Genus_Eubacterium eligens group · higher risk of HF1.14P = 0.022
HF risk, per taxon (higher risk)Genus_Eubacterium oxidoreducens group · higher risk of HF1.12P = 0.011
HF risk, per taxon (higher risk)Genus_Flavonifractor · higher risk of HF1.14P = 0.012
HF risk, per taxon (lower risk)Genus_Anaerostipes · lower risk of HF0.90P = 0.014
HF risk, per taxon (lower risk)Order_Bacillales · lower risk of HF0.95P = 0.042

Pleiotropy and heterogeneity

Evidence of pleiotropy or heterogeneity was not observed

Original publication

Gut Microbiota and Risk of Heart Failure in European Population—A Comprehensive Mendelian Randomization Study. ESC Heart Fail. Published 17 March 2025. doi:10.1002/ehf2.15267

Summarised from the published abstract; every number is checked against it

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