A new study from the Cleveland Clinic research group headed by Stanley Hazen offers more evidence in support of the hypothesis that TMAO (trimethylamine-N-oxide) may play a role in the development of heart disease. The new research, published in the New England Journal of Medicine, follows closely on a related study published recently in Nature Medicine that received broad public attention.
The Nature Medicine paper demonstrated that digestive tract bacteria metabolize carnitine into trimethylamine-N-oxide (TMAO), which had previously been linked to atherosclerosis in animals. The new research in NEJM focuses on another pathway that leads to TMAO production and provides for the first time a credible association between TMAO and cardiovascular disease in humans.
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