the specimens were extracted in boiling 0.5m acetic acid , and these extracts were utilized to measure neuropeptide concentrations , i.e. , neuropeptide y ( npy ) , calcitonin gene-related peptide ( cgrp ) , vasoactive intestinal polypeptide ( vip ) and peptide 7b2 .
C0027895
neuropeptide
C0027893
neuropeptide y