Calcitonin (8-32), salmon, is a highly selective amylin receptor antagonist. Calcitonin, a hormone involved in calcium and phosphorus metabolism, is primarily produced by the parafollicular or C cells in the thyroid gland of mammals.
Amylin (8-37), human, derived from human Amylin, possesses direct vasodilator effects in isolated mesenteric resistance arteries of rats. Human Amylin is a small pancreatic β-cell hormone that forms aggregates in the absence of insulin and is a key pathological feature of type II diabetes mellitus.