Evidence map›Paper›PMID 33477634›Full record

ArticleNutrients2021

Association of Circulating Trimethylamine

Jose L Flores-Guerrero, Maryse C J Osté, Paula B Baraldi, Margery A Connelly, Erwin Garcia, Gerjan Navis, Stephan J L Bakker, Robin P F Dullaart

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
1.9field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Gut microbes · 2026
    Review
  5. Review
  6. Review
  7. Article
  8. Serum Trimethylamine N-Oxide Levels as a Predictor of Peripheral Arterial Disease in Kidney Transplant Recipients.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Article
  9. Article
  10. Article
  11. High plasma levels of betaine, a trimethylamine N-Oxide-related metabolite, are associated with the severity of cirrhosis.Liver international : official journal of the International Association for the Study of the Liver · 2023
    Article
  12. Review
  13. Article
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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

8 authors at 2 institutions in 2 countries.

Jose L Flores-GuerreroDepartment of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.ORCID 0000-0002-6094-2206
Maryse C J OstéDepartment of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.ORCID 0000-0001-9238-1397
Paula B BaraldiDepartment of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
Margery A ConnellyLaboratory Corporation of America Holdings (LabCorp), Morrisville, NC 27560, USA.ORCID 0000-0002-3917-592X
Erwin GarciaLaboratory Corporation of America Holdings (LabCorp), Morrisville, NC 27560, USA.ORCID 0000-0002-2956-2715
Gerjan NavisDepartment of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.
Stephan J L BakkerDepartment of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.ORCID 0000-0003-3356-6791
Robin P F DullaartDepartment of Internal Medicine, Division of Endocrinology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands.ORCID 0000-0002-3844-5254
University Medical Center Groningen · NLLabCorp (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to the critical shortage of kidneys for transplantation, the identification of modifiable factors related to graft failure is highly desirable. The role of trimethylamine-

methodsWe included 448 RTRs who participated in the TransplantLines Cohort Study. Cox proportional-hazards regression analyses were performed to study the association of plasma TMAO with graft failure. Net Benefit, which is a decision analysis method, was performed to evaluate the clinical utility of TMAO and dietary information in the prediction of graft failure.

resultsAmong RTRs (age 52.7 ± 13.1 years; 53% males), the baseline median TMAO was 5.6 (3.0-10.2) µmol/L. In multivariable regression analysis, the most important dietary determinants of TMAO were egg intake (Std. β = 0.09 [95%CI, 0.01; 0.18];

conclusionsA predictive model for graft failure, enriched with TMAO and its dietary determinants, yielded a higher Net Benefit compared with an already validated model. This study suggests that TMAO and its dietary determinants are associated with an increased risk of graft failure and that it is clinically meaningful.

Indexed as

DietAdultAgedCohort StudiesCross-Sectional StudiesFemaleGlomerular Filtration RateGraft RejectionGraft SurvivalHumansKidney TransplantationLongitudinal StudiesMaleMethylaminesMiddle AgedRenal Insufficiency, ChronicMethylaminestrimethyloxaminedietkidney transplantationnet benefittrimethylamine-N-oxide (TMAO)

Identifiers

PMID33477634
PMCPMC7831477
OpenAlexW3125483240

What OpenQuestion 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 OpenQuestion graph.