to investigate the reported association between idiopathic chronic constipation and morphologic abnormalities of enteric nerves , we measured the concentrations of six neuropeptides , vasoactive intestinal peptide , peptide histidine-methionine , substance p , methionine5-enkephalin , neuropeptide y , and the bombesinlike intestinal peptides , in descending colon from 4 patients with idiopathic chronic constipation .
C0027895
neuropeptides
C0027893
neuropeptide y