Evidence map›Paper›PMID 36166845›Full record

ArticleThe American journal of clinical nutrition2022

The association between TMAO, CMPF, and clinical outcomes in advanced chronic kidney disease: results from the European QUALity (EQUAL) Study.

Lu Dai, Ziad A Massy, Peter Stenvinkel, Nicholas C Chesnaye, Islam Amine Larabi, Jean Claude Alvarez, Fergus J Caskey, Claudia Torino, Gaetana Porto, Maciej Szymczak and 8 more

Open access · hybridAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
4.8field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Kidney Disease as a Driver of Immunosenescence: Mechanisms and Potential Interventions.Journal of the American Society of Nephrology : JASN · 2026
    Review
  9. Article
  10. Observational
  11. Review
  12. Article
  13. Gut Microbiota Metabolites and the Development of CKD.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
  14. Article
  15. Review
  16. The microbial metabolite trimethylamine N-oxide and the kidney diseases.Frontiers in cellular and infection microbiology · 2025
    Review
  17. The safety of a low-protein diet in older adults with advanced chronic kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2024
    Observational
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors at 8 institutions in 8 countries.

Lu DaiAging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0001-9036-3857
Ziad A MassyDivision of Nephrology, Ambroise Paré University Hospital, Boulogne-Billancourt, France.
Peter StenvinkelDivision of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
Nicholas C ChesnayeERA-EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
Islam Amine LarabiLaboratory of Pharmacology and Toxicology, CHU, Raymond Poincare, Garches, France.
Jean Claude AlvarezLaboratory of Pharmacology and Toxicology, CHU, Raymond Poincare, Garches, France.
Fergus J CaskeyPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom.
Claudia TorinoIFC-CNR, Clinical Epidemiology and Pathophysiology of Renal Diseases and Hypertension, Reggio Calabria, Italy.
Gaetana PortoG.O.M., Bianchi Melacrino Morelli, Reggio Calabria, Italy.
Maciej SzymczakClinical Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland.
Magdalena KrajewskaClinical Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland.
Christiane DrechslerDivision of Nephrology, University Hospital of Würzburg, Würzburg, Germany.
Christoph WannerDivision of Nephrology, University Hospital of Würzburg, Würzburg, Germany.ORCID 0000-0001-9507-5301
Kitty J JagerERA-EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
Friedo W DekkerERA-EDTA Registry, Department of Medical Informatics, Academic Medical Center, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.ORCID 0000-0002-2433-2494
Pieter EvenepoelDepartment of Microbiology, Immunology, and Transplantation, Nephrology and Renal Transplantation Research Group, KU Leuven, Leuven, Belgium.ORCID 0000-0002-0797-4321
Marie EvansDivision of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0001-8650-5795
EQUAL Study Investigators
Amsterdam UMC Location University of Amsterdam · NLInserm · FRKarolinska Institutet · SEUniversitätsklinikum Würzburg · DEWroclaw Medical University · PLAzienda ospedaliera "Bianchi-Melacrino-Morelli" · ITKU Leuven · BEUniversity of Bristol · GB

Funding

Department of Health
6 · The paper itself

Abstract

backgroundTrimethylamine N-oxide (TMAO), a metabolite from red meat and fish consumption, plays a role in promoting cardiovascular events. However, data regarding TMAO and its impact on clinical outcomes are inconclusive, possibly due to its undetermined dietary source.

objectivesWe hypothesized that circulating TMAO derived from fish intake might cause less harm compared with red meat sources by examining the concomitant level of 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF), a known biomarker of fish intake, and investigated the association between TMAO, CMPF, and outcomes.

methodsPatients were recruited from the European QUALity (EQUAL) Study on treatment in advanced chronic kidney disease among individuals aged ≥65 y whose estimated glomerular filtration rate (eGFR) had dropped for the first time to ≤20 mL/min per 1.73 m2 during the last 6 mo. The association between TMAO, CMPF, and outcomes including all-cause mortality and kidney replacement therapy (KRT) was assessed among 737 patients. Patients were further stratified by median cutoffs of TMAO and CMPF, suggesting high/low red meat and fish intake.

resultsDuring a median of 39 mo of follow-up, 232 patients died. Higher TMAO was independently associated with an increased risk of all-cause mortality (multivariable HR: 1.46; 95% CI: 1.17, 1.83). Higher CMPF was associated with a reduced risk of both all-cause mortality (HR: 0.79; 95% CI: 0.71, 0.89) and KRT (HR: 0.80; 95% CI: 0.71, 0.90), independently of TMAO and other clinically relevant confounders. In comparison to patients with low TMAO and CMPF, patients with low TMAO and high CMPF had reduced risk of all-cause mortality (adjusted HR: 0.49; 95% CI: 0.31, 0.73), whereas those with high TMAO and high CMPF showed no association across adjusted models.

conclusionsHigh CMPF conferred an independent role in health benefits and might even counteract the unfavorable association between TMAO and outcomes. Whether higher circulating CMPF concentrations are due to fish consumption, and/or if CMPF is a protective factor, remains to be verified.

Indexed as

MethylaminesRenal Insufficiency, ChronicAnimalsDietGlomerular Filtration RateHumansRed MeatSeafoodMethylaminestrimethyloxamine3-carboxy-4-methyl-5-propyl-2-furanpropionateCKDfish intakekidney replacement therapymortalityred meattrimethylamine N-oxideuremic toxins

Identifiers

PMID36166845
PMCPMC9761748
OpenAlexW4297207141

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.