during the first 1-2 days in culture the neuropeptides substance p and calcitonin gene-related peptide could be detected by immunofluorescence staining in cultures grown in the presence or absence of nerve growth factor , but at longer times in nerve growth factor-deprived cultures there was loss of immunoreactive staining for both peptides .
C0027895
neuropeptides
C0006669
calcitonin gene-related peptide