CUTC and obesity due to melanocortin 4 receptor deficiency: Given the fact that obesity is a comorbidity in all of these human diseases, here we set out to determine whether selective small molecule inhibition of the gut microbial choline transformation into TMA, a metabolic activity catalyzed by the microbial choline TMA lyase CutC (Craciun and Balskus, 2012), can protect against metabolic disturbance in preclinical mouse models of obesity.