Pancreatic hormone is synthesized in pancreatic islets of Langerhans and acts as a regulator of pancreatic and gastrointestinal functions. Induced in hypoglycemia, and, in vitro, by carbocal, in fetal pancreatic cells. May be used as a marker of the viability of xenotransplanted fetal panreatic tissue in the immediate post-transplant period. Belongs to the NPY family.