title: APUD tumors of the gastrointestinal tract.
mesh_terms: D007516:Adenoma, Islet Cell / Q000378:metabolism; D002276:Carcinoid Tumor / Q000378:metabolism; D002766:Cholecystokinin / Q000378:metabolism; D003967:Diarrhea / Q000209:etiology; D005755:Gastrins / Q000378:metabolism; D005768:Gastrointestinal Hormones / Q000502:physiology; D005770:Gastrointestinal Neoplasms / Q000196:embryology / Q000473:pathology / Q000503:physiopathology*; D005934:Glucagon / Q000378:metabolism; D006729:Hormones, Ectopic / Q000378:metabolism; D006801:Humans; D007328:Insulin / Q000378:metabolism; D000078790:Insulin Secretion; D009490:Neurosecretory Systems / Q000503:physiopathology; D010187:Pancreatic Hormones / Q000502:physiology; D009384:Paraneoplastic Endocrine Syndromes / Q000196:embryology / Q000503:physiopathology* / Q000628:therapy; D011453:Prostaglandins / Q000378:metabolism; D012701:Serotonin / Q000378:metabolism; D013577:Syndrome; D014660:Vasoactive Intestinal Peptide / Q000378:metabolism; D014898:Werner Syndrome / Q000503:physiopathology; D015043:Zollinger-Ellison Syndrome / Q000378:metabolism
chemical_list: D005755:Gastrins; D005768:Gastrointestinal Hormones; D006729:Hormones, Ectopic; D007328:Insulin; D010187:Pancreatic Hormones; D011453:Prostaglandins; D012701:Serotonin; D014660:Vasoactive Intestinal Peptide; D005934:Glucagon; D002766:Cholecystokinin