contractile effects of the cardiac neuropeptides vasoactive intestinal polypeptide ( vip ) , peptide histidine isoleucine ( phi ) , neuropeptide y ( npy ) , calcitonin gene-related peptide ( cgrp ) , and neurotensin ( nt ) were compared with those of l-isoproterenol ( iso ) in isolated canine atrial and ventricular trabeculae muscles stimulated to contract at 1 hz .
C0027895
neuropeptides
C0027930
neurotensin