Simultaneous targeted analysis of trimethylamine-N-oxide, choline, betaine, and carnitine by high performance liquid chromatography tandem mass spectrometry

Sep 27, 2016Journal of chromatography. B, Analytical technologies in the biomedical and life sciences

Measuring levels of trimethylamine-N-oxide, choline, betaine, and carnitine using advanced liquid chromatography and mass spectrometry

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Abstract

A sensitive method for detecting trimethylamine-N-oxide (TMAO) and related metabolites has been developed for mouse plasma analysis.

  • TMAO is produced from dietary components such as choline, betaine, and carnitine through gut microbiota activity.
  • Elevated levels of TMAO are linked to an increased risk of atherosclerosis and cardiovascular events.
  • The new liquid chromatographic electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) method allows for simultaneous measurement of TMAO, betaine, choline, and carnitine.
  • The method has been validated for selectivity, sensitivity, precision, and accuracy in analyzing mouse plasma samples.
  • Stability of the analytes under various conditions has been confirmed.

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