Diabetes complications

Association Between Trimethylamine N-oxide and Adverse Kidney Outcomes and Overall Mortality in Type 2 Diabetes Mellitus

J Clin Endocrinol MetabPublished Prospective cohort study

Main finding · Doubling of serum creatinine or progression to ESKDResult — go to the resultFold increase in risk 6.45

Authors' conclusion

Patients with T2D with elevated circulating TMAO levels are at higher risk of doubling serum creatinine, progressing to ESKD, and mortality. TMAO is a potential biomarker for kidney function progression and mortality in patients with T2D.

Study context

Population
Patients with T2D recruited October 2016–June 2020, monitored every 3 months until December 2021
Participants
440 patients
Exposure
Highest vs lowest serum TMAO tertile
Outcome
Doubling of serum creatinine or progression to ESKD necessitating dialysis
Follow-up
Median 4 years
Methodological detailspropensity score weighting
  • Propensity score weighting

Main finding

As reported in the abstract

Doubling of serum creatinine or progression to ESKD

Fold increase in risk

6.45

Patients with doubling of serum creatinine or end-stage kidney disease (ESKD) (whole cohort)
26 (5.9%)

Observational data: associations, not effects.

Further findings

OutcomeFold elevated risk
Rapid 30% decline in eGFR within 2 yearsAfter propensity score weighting5.86

All-cause mortality

Stepwise increase in serum TMAO associated with all-cause mortality

Original publication

Association Between Trimethylamine N-oxide and Adverse Kidney Outcomes and Overall Mortality in Type 2 Diabetes Mellitus. J Clin Endocrinol Metab. Published 24 January 2024. doi:10.1210/clinem/dgae009

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