Trimethylamine-N-Oxide and Precursors as Novel Potential Biomarkers for Anxiety Disorder.

Abstract

BACKGROUND:

Anxiety disorder (AD) is closely related to changes in the composition of the gut microbiota, and changes in gut microbiota abundance affect the synthesis of trimethylamine N-oxide (TMAO).

OBJECTIVE:

To explore whether TMAO is related to and serves as a potential biomarker for the diagnosis of AD.

METHODS:

The concentrations of TMAO, choline, and betaine were analyzed in 60 patients with AD and 60 control individuals using a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method.

RESULTS:

Compared with controls, TMAO was significantly reduced in patients with AD. Logistic regression analysis demonstrated that decreased TMAO concentrations were associated with an increased risk of AD. The multiplication of TMAO and its precursors (choline and betaine) produced the best AUC for the diagnosis of AD (AUC = 0.847; 95% CI, 0.780-0.914; P <.001).

CONCLUSION:

The decrease of TMAO concentration is related to the increase of anxiety disorder. TMAO and precursors could be identified as novel potential biomarkers for the diagnosis of AD.

• Authors: Juan Le, Rui Peng, Yan Li
• Journal: Laboratory medicine (Lab Med) Vol. 53 Issue 2 Pg. 177-182 (Mar 07 2022) ISSN: 1943-7730 [Electronic] England
• PMID: 34480186 (Publication Type: Journal Article)
• Copyright: © American Society for Clinical Pathology, 2021. All rights reserved. For permissions, please e-mail: [email protected].

Chemical References

• Biomarkers
• Methylamines
• Oxides
• trimethyloxamine
• trimethylamine

Topics

• Anxiety Disorders (diagnosis)
• Biomarkers
• Chromatography, Liquid
• Humans
• Methylamines
• Oxides
• Tandem Mass Spectrometry (methods)