Heart failure & cardiomyopathies

Microbially Produced Imidazole Propionate Is Associated With Heart Failure and Mortality

JACC Heart FailPublished Cohort study

Main finding · 5-year mortality (North American cohort)Result — go to the resultAdjusted hazard ratio 1.85 95% CI 1.20–2.88

Authors' conclusion

The gut microbial metabolite ImP is increased in individuals with heart failure and is a predictor of overall survival.

Study context

Population
Patients with a range of severity of CVD including HF2 cohorts
Participants
1,985 vs 2,155
Exposure
Serum imidazole propionate (ImP) levels
  • Europeann = 1,985
  • North Americann = 2,155
Outcome
Association of ImP with HF and mortality
Follow-up
5 years (mortality)
Methodological details2 independent clinical cohorts
  • 2 independent clinical cohorts

Main finding

5-year mortality (North American cohort) · 5 years

Adjusted hazard ratio

1.85

95% CI 1.20–2.88

P < 0.01

Serum ImP levels (highest quartile vs lower)
adjusted HR 1.85 (95% CI 1.20–2.88); P < 0.01

As reported in the abstract

Observational data: associations, not effects.

Original publication

Microbially Produced Imidazole Propionate Is Associated With Heart Failure and Mortality. JACC Heart Fail. Published 26 April 2023. doi:10.1016/j.jchf.2023.03.008

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