The Carnitine butyrobetaine trimethylamine N oxide pathway and its association with cardiovascular mortality in patients with carotid atherosclerosis Atherosclerosis Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect Gut microbe derived metabolite trimethylamine N oxide activates PERK to drive fibrogenic mesenchymal differentiation: iScience L Carnitine ((R) Carnitine) Co factor for oxidation MedChemExpress Dietary allicin reduces transformation of L carnitine to TMAO through impact on gut microbiota ScienceDirect