1. Plasma trimethylamine N-oxide is associated with vulnerable plaque characteristics in CAD patients as assessed by optical coherence tomography

    Plasma trimethylamine N-oxide is associated with vulnerable plaque characteristics in CAD patients as assessed by optical coherence tomography

    Background Plaque vulnerability indicates the risk of a cardiovascular event. In the present study, we sought to analyze the relationship between trimethylamine N-oxide (TMAO), a gut microbiota metabolite from dietary phosphatidylcholine, and vulnerable plaque characteristics in patients with coronary artery disease (CAD). Methods One hundred eighty non-culprit plaques from 90 patients with ACS or with stable angina were assessed by optical coherence tomography (OCT). The plasma TMAO levels were measured using rapid resolution liquid chromatography quadrupole time-of-flight mass spectrometry (RRLC-QTOF/MS). Results Patients were divided into two groups (high TMAO group and low TMAO group) according to the median plasma ...

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