in addition , expression of some neuropeptides such as vasoactive intestinal polypeptide ( vip ) , somatostatin ( srif ) , and substance p in the human salivary gland epithelium during the gestational period was observed , whereas the other polypeptides examined , including glucagon , cholecystokinin ( cck ) , leu-enkephalin , and calcitonin were absent .
C0027895
neuropeptides
C0006668
calcitonin