the effect of a brief c-fibre strength conditioning stimulus ( cs ) train ( 20 s , 1 hz ) to the sural nerve or intrathecally applied neuropeptides substance p ( sp ) , vasoactive intestinal polypeptide ( vip ) and calcitonin gene-related peptide ( cgrp ) on reflex excitability were quantified .
C0027895
neuropeptides
C0006669
calcitonin gene-related peptide