Methodological considerations for the identification of choline and carnitine-degrading bacteria in the gut

Apr 24, 2018Methods (San Diego, Calif.)

Key points for detecting gut bacteria that break down choline and carnitine

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Abstract

Bacterial formation of trimethylamine (TMA) has been linked to cardiovascular disease.

  • Certain bacteria in the human gut may convert dietary choline and carnitine into TMA.
  • Key metabolic pathways for TMA production include anaerobic choline-TMA lyase, CutC, and aerobic carnitine monooxygenase, CntA.
  • Identification of these enzymes allows for the use of bioinformatics to screen bacterial genomes and gut metagenomes.
  • This review highlights methods for determining which bacteria are responsible for TMA formation in the human gut.

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