Ulcerative Colitis Associated with Cardiometabolic Disease and Complicated with Autoimmune Pancreatitis.

Diet-related cardiometabolic diseases and inflammatory bowel disease, common previously in Western countries, are global problems. We hypothesized that inflammatory bowel disease is a lifestyle disease primarily mediated by the current Western diet. We report here the simultaneous onset of ulcerative colitis and autoimmune pancreatitis, a rare systemic complication of inflammatory bowel disease, 2 months after acute myocardial infarction in a patient with type 2 diabetes. A 67-year-old man with type 2 diabetes was referred to us because of newly diagnosed ulcerative colitis 2 months after acute myocardial infarction. A plant-based diet was provided during hospitalization. An abrupt deterioration in plasma glucose and hemoglobin A1c due to asymptomatic type 2 autoimmune pancreatitis was observed. Prednisolone administration under intensive insulin therapy led to the remission of both diseases. This case was an illustrative one of association between cardiometabolic diseases and inflammatory bowel diseases caused by current unhealthy diets and their shared pathogenesis.