Cited by 340Dialysis and Renal Disease ManagementChronic Kidney Disease and DiabetesMetabolomics and Mass Spectrometry Studies

Serum Trimethylamine-N-Oxide Is Strongly Related to Renal Function and Predicts Outcome in Chronic Kidney Disease

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Missailidis, Catharina, Hällqvist, Jenny, Qureshi, Abdel Rashid, Barany, Peter, Heimbürger, Olof, Lindholm, Bengt, Stenvinkel, Peter, Bergman, Peter·2016·PLOS ONE

Abstract

BACKGROUND: The microbial metabolite Trimethylamine-N-oxide (TMAO) has been linked to adverse cardiovascular outcome and mortality in the general population. OBJECTIVE: To assess the contribution of TMAO to inflammation and mortality in chronic kidney disease (CKD) patients ranging from mild-moderate to end-stage disease and 1) associations with glomerular filtration rate (GFR) 2) effect of dialysis and renal transplantation (Rtx) 3) association with inflammatory biomarkers and 4) its predictive value for all-cause mortality. METHODS: Levels of metabolites were quantified by a novel liquid chromatography/tandem mass spectrometry-based method in fasting plasma samples from 80 controls and 179 CKD 3-5 patients. Comorbidities, nutritional status, biomarkers of inflammation and GFR were assessed. RESULTS: GFR was the dominant variable affecting TMAO (β = -0.41; p<0.001), choline (β = -0.38; p<0.001), and betaine (β = 0.45; p<0.001) levels. A longitudinal study of 74 CKD 5 patients starting renal replacement therapy demonstrated that whereas dialysis treatment did not affect TMAO, Rtx reduced levels of TMAO to that of controls (p<0.001). Following Rtx choline and betaine levels continued to increase. In CKD 3-5, TMAO levels were associated with IL-6 (Rho = 0.42; p<0.0001), fibrinogen (Rho = 0.43; p<0.0001) and hsCRP (Rho = 0.17; p = 0.022). Higher TMAO levels were associated with an increased risk for all-cause mortality that remained significant after multivariate adjustment (HR 4.32, 95% CI 1.32-14.2; p = 0.016). CONCLUSION: Elevated TMAO levels are strongly associated with degree of renal function in CKD and normalize after renal transplantation. TMAO levels correlates with increased systemic inflammation and is an independent predictor of mortality in CKD 3-5 patients.

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Authors
Missailidis, C., Hällqvist, J., Qureshi, A. R., Barany, P., Heimbürger, O., Lindholm, B., Stenvinkel, P., & Bergman, P.
Affiliations
  • Karolinska University Hospital (SE)
  • Swedish University of Agricultural Sciences (SE)
Corresponding author
Missailidis, Catharina
Venue
PLOS ONE
Published
2016-01-11
Volume
11
Issue
1
Pages
e0141738
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2232990799
Cited by
338
References
34
Citations by year
2026: 22 · 2025: 32 · 2024: 27 · 2023: 36 · 2022: 44 · 2021: 34 · 2020: 42 · 2019: 33 · 2018: 28 · 2017: 27 · 2016: 13
FWCI
34.20
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Stockholms Läns Landsting (2013-0317)
  • Vetenskapsrådet
Topics
  • Health Sciences › Medicine › Nephrology › Dialysis and Renal Disease Management
  • Health Sciences › Medicine › Nephrology › Chronic Kidney Disease and Diabetes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
Keywords
trimethylamine N-oxide, chronic kidney disease, glomerular filtration rate, renal function, kidney transplantation, dialysis, all-cause mortality, systemic inflammation, interleukin-6, fibrinogen, C-reactive protein, choline, betaine, microbial metabolites, prognostic factors
MeSH terms
Adult, Aged, Betaine, C-Reactive Protein, Cardiovascular Diseases, Choline, Female, Fibrinogen, Glomerular Filtration Rate, Renal Dialysis, Humans, Inflammation, Longitudinal Studies, Male, Methylamines, Middle Aged, Prognosis, Severity of Illness Index, Biomarkers, Interleukin-6, Multivariate Analysis, Survival Analysis, Kidney Transplantation, Renal Insufficiency, Chronic

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