Related Experiment Video

Updated: May 10, 2025

Author Spotlight: An Improved Technique for Trimethylamine Detection in Animal-Derived Medicine by Headspace Gas Chromatography-Tandem Quadrupole Mass Spectrometry
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Author Spotlight: An Improved Technique for Trimethylamine Detection in Animal-Derived Medicine by Headspace Gas Chromatography-Tandem Quadrupole Mass Spectrometry

Published on: March 10, 2023

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Trimethylamine-N-Oxide (TMAO) as a Rising-Star Metabolite: Implications for Human Health

Eugenio Caradonna1, Federico Abate2, Elisabetta Schiano3

  • 1Integrated Laboratory Medicine Services, Centro Diagnostico Italiano S.p.A., 20011 Milan, Italy.

Metabolites
|April 25, 2025
PubMed

Insights

Trimethylamine-N-oxide (TMAO) links gut microbes, diet, and disease. Targeting TMAO offers new strategies for preventing cardiovascular and neurodegenerative disorders by modulating gut microbiota and metabolism.

Area of Science:

  • Microbiology
  • Metabolic Medicine
  • Gut Microbiome Research

Background:

  • The intestinal microbiota comprises trillions of microorganisms crucial for host health.
  • Trimethylamine-N-oxide (TMAO) is a key biomarker linking diet, gut microbiota, and host metabolism to diseases.
  • TMAO is implicated in various pathological conditions, including cardiovascular and neurodegenerative diseases.

Purpose of the Study:

  • To review the biosynthesis, physiological functions, and clinical significance of TMAO.
  • To elucidate TMAO's mechanistic contributions to cardiovascular and neurodegenerative diseases.
  • To highlight strategies for targeting TMAO to mitigate its pathological effects.

Main Methods:

  • Comprehensive literature review of TMAO biosynthesis and function.
  • Analysis of TMAO's role in disease pathogenesis.
  • Exploration of therapeutic strategies targeting TMAO.

Main Results:

  • TMAO is synthesized from dietary precursors via microbial metabolism.
  • TMAO contributes to endothelial dysfunction, inflammation (NLRP3 inflammasome), and cholesterol metabolism disruption.
  • These pathways accelerate atherosclerosis and disease progression.

Conclusions:

  • TMAO is a critical mediator between the gut microbiome, diet, and host health.
  • Targeting TMAO through dietary, nutraceutical, or microbiota-modulating interventions shows therapeutic potential.
  • Modulating TMAO offers a transformative approach for managing related disorders.
Keywords:
atherosclerosiscardiovascular diseasesendothelial dysfunctiongut microbiotaneurodegenerative diseasestrimethylamine-N-oxide (TMAO)

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