Gut microbe-generated metabolite trimethylamine N-oxide and risk of abdominal aortic aneurysm: a cohort study

This study investigates whether circulating levels of the gut microbe-generated metabolite trimethylamine N-oxide (TMAO) can predict the development of abdominal aortic aneurysms (AAAs) and associated adverse outcomes in older adults. The authors found that higher baseline TMAO levels were significantly linked to an increased risk of AAA development and adverse events, suggesting TMAO may serve as a novel risk factor and potential therapeutic target for AAA prevention.