Evidence map›Paper›PMID 35982495›Full record

ArticleJournal of translational medicine2022

Serum trimethylamine-N-oxide is associated with incident type 2 diabetes in middle-aged and older adults: a prospective cohort study.

Shu-Yi Li, Si Chen, Xiao-Ting Lu, Ai-Ping Fang, Yu-Ming Chen, Rong-Zhu Huang, Xin-Lei Lin, Zi-Hui Huang, Jing-Fei Ma, Bi-Xia Huang and 1 more

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03179657 (Guangzhou Nutrition and Health Study), which is not on this map. Cited by 39 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 3 pooled it
10.4field-weighted citation impact, top 1% 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.

NCT03179657 active not recruitingnot on this map

Guangzhou Nutrition and Health Study (GNHS): A Multiomics-based Study

TypeobservationalSponsorSun Yat-sen UniversityRan2008 to 2027Enrolled5,118ConditionsCardiovascular Diseases, Osteoporosis, Diabetes Mellitus, Type 2, Metabolic Syndrome
3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Gut microbiota-generated trimethylamineAmerican journal of physiology. Endocrinology and metabolism · 2026
    Trial
  5. Trial
  6. Trial
  7. Trimethylamine-N-oxide: the microbial cue in immune-mediated disorders.Trends in endocrinology and metabolism: TEM · 2026
    Review
  8. Observational
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Metabolic diseases in the East Asian populations.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  18. Review
  19. Article
  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

11 authors at 1 institution in 1 country.

Shu-Yi LiDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Si ChenDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Xiao-Ting LuDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Ai-Ping FangDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Yu-Ming ChenDepartment of Medical Statistics & Epidemiology, School of Public Health, Sun Yat-Sen University, Guangzhou, People's Republic of China.
Rong-Zhu HuangDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Xin-Lei LinDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Zi-Hui HuangDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Jing-Fei MaDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China.
Bi-Xia HuangDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China. huangbx23@mail.sysu.edu.cn.
Hui-Lian ZhuDepartment of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, People's Republic of China. zhuhl@mail.sysu.edu.cn.
Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of trimethylamine-N-oxide (TMAO) in the development of diabetes remains controversial, and prospective data are few. We aimed to investigate the association between serum TMAO and incident type 2 diabetes in middle-aged and older adults.

methodsThis study was based on the Guangzhou Nutrition and Health Study (GNHS), a community-based prospective cohort study in China. A total of 2088 diabetes-free participants aged 40-75 years were included from 2008 to 2010. Incident type 2 diabetes was ascertained during follow-up visits. Baseline serum TMAO was measured by high-performance liquid chromatography with online electrospray ionization tandem mass spectrometry. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) for diabetes across tertiles of serum TMAO were calculated using Cox proportional hazard models. Prospective associations of serum TMAO with changes in glycemic traits (fasting glucose, HbA1c, insulin, HOMA-IR) over time were estimated using linear mixed-effects models (LMEMs).

resultsWe ascertained 254 incident type 2 diabetes cases during a median follow-up of 8.9 years. The median (interquartile range) of serum TMAO was 1.54 (0.86-2.91) μmol/L. From the first to the third tertile of serum TMAO, the multivariable-adjusted HRs for diabetes were 1.00 (reference), 1.17 (95% CI: 0.84-1.61), and 1.42 (95% CI: 1.03-1.96) (P-trend = 0.031). LMEMs showed that the estimated yearly change in fasting glucose was 0.011 (0.001-0.022) mmol/L/y in the highest tertile of serum TMAO, compared with the lowest tertile (P-interaction = 0.044). Serum TMAO was not associated with longitudinal changes in HbA1c, insulin or HOMA-IR.

conclusionsOur findings suggested that higher serum TMAO was associated with a higher risk of type 2 diabetes and an increase in fasting glucose among middle-aged and older Chinese adults.

trial registrationNCT03179657. https://clinicaltrials.gov/ct2/show/NCT03179657?term=NCT03179657&draw=2&rank=1.

Indexed as

Diabetes Mellitus, Type 2AgedBlood GlucoseGlycated HemoglobinHumansInsulinMethylaminesMiddle AgedOxidesProspective StudiesRisk FactorsBlood GlucoseGlycated HemoglobinInsulinMethylaminesOxidestrimethylamineMetabolitesMiddle-aged and older adultsProspective cohortTrimethylamine-N-oxideType 2 diabetes

Identifiers

PMID35982495
PMCPMC9389664
OpenAlexW4292676215

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.