Cited by 44Autism Spectrum Disorder ResearchGut microbiota and healthTryptophan and brain disorders

Plasma Trimethylamine N-Oxide, a Gut Microbe-Generated Phosphatidylcholine Metabolite, Is Associated with Autism Spectrum Disorders

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Quan, Lijuan, Yi, Jinping, Zhao, Yue, Zhang, Feng, Shi, Xiao-Tong, Feng, Zhen, Miller, Haylie L.·2020·NeuroToxicology

Abstract

Objective The compositions of the gut microbiota and its metabolites were altered in individuals with Autism Spectrum Disorder (ASD). The aim of this study was to assess whether plasma levels of gut-derived metabolite trimethylamine N-oxide (TMAO) were associated with ASD and the degree of symptom severity.Methods From September 2017 to January 2019, a total of three hundred and twenty-eight Chinese children (164 with ASD and 164 their age-sex matched control subjects) aged 3-8 years were included. TMAO levels in plasma were determined using high-performance liquid chromatography tandem mass spectrometry (LC/MS/MS). Logistic regression analysis was used to examine the TMAO-ASD association.Results In the study, the median age of the ASD group was 5 years (interquartile range [IQR], 4-6 years) and 129 (78.7%) were boys. The median plasma levels of TMAO in children with ASD and typically-developing (TD) children at admission were 4.2 (IQR, 3.0-5.6) μmol/l and 3.0 (2.0-4.4) μmol/l, respectively (P < 0.001). For each 1 μmol/l increase of plasma TMAO, the unadjusted and adjusted risk of ASD would be increased by 54% (with the odds ratios [OR] of 1.54; 95% confidence intervals [CI]: 1.32-1.78; P < 0.001) and 27% (1.27 [1.10-1.45], P < 0.001), respectively. Symptom severity was classified as mild-to-moderate (CARS < 37) for 66 children with ASD (40.2%). In these children, the plasma levels of TMAO were lower than in the 98 children with ASD (59.8%) whose symptoms were classified as severe (CARS > 36) (3.5[2.5-4.9] μmol/l vs. 4.5(3.7-6.0) μmol/l; P < 0.001). For each 1 μmol/l increase of plasma TMAO, the unadjusted and adjusted risk of severe autism would be increased by 61% (with the OR of 1.61 [95% CI 1.28-2.01], P < 0.001) and 31% (1.31 [1.08-1.49], P < 0.001), respectively.Conclusions Elevated plasma levels of TMAO were associated with ASD and symptom severity.

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  1. Li Q, Han Y, Dy ABC,, 2017b The gut microbiota and autism spectrum disorders. Front. Cell. Neurosci 11, 120. 28503135 PMC5408485

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Authors
Quan, L., Yi, J., Zhao, Y., Zhang, F., Shi, X.-T., Feng, Z., & Miller, H. L.
Affiliations
  • First Affiliated Hospital of Nanchang University (CN)
  • Capital Medical University (CN)
  • University of North Texas Health Science Center (US)
Corresponding author
  • Quan, Lijuan
  • Miller, Haylie L.
Venue
NeuroToxicology
Publisher
Elsevier BV
Published
2020-01
Volume
76
Pages
93-98
ISSN
0161-813X (ISSN-L)
OpenAlex
W2988609498
Cited by
44
References
50
Citations by year
2026: 6 · 2025: 10 · 2024: 4 · 2023: 10 · 2022: 5 · 2021: 7 · 2020: 2
FWCI
2.03
Type
journal article
Language
en
Open access
Locations
  • NeuroToxicology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (K01MH107774)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
spectrum disorders, trimethylamine N-oxide, gut microbiota metabolites, phosphatidylcholine metabolism, plasma biomarkers, symptom severity, children, gut-brain axis, autism risk factors, gut dysbiosis
MeSH terms
Autism Spectrum Disorder, Gastrointestinal Microbiome, Child, Child, Preschool, Cross-Sectional Studies, Female, Humans, Male, Methylamines, Phosphatidylcholines, Risk Factors, ROC Curve, Severity of Illness Index

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