the concentrations of the neuropeptides substance p , somatostatin , and calcitonin gene-related peptide in human nasal secretions were quantified by radioimmunoassays , concurrently with that of histamine , in the course of nasal challenge of allergic and control subjects with ryegrass antigen to examine contributions of neuromediation of the tissue response .
C0027895
neuropeptides
C0006669
calcitonin gene-related peptide