Neuromedin C is a bombesin-like neuropeptide that stimulates uterine smooth muscle contraction and the release of gastrin , somatostatin, and amylase in rats. Neuromedin C is a truncated form of gastrin-releasing peptide corresponding to the GRP amino acids 18-27. It inhibits GRP and bombesin binding to rat pancreatic membranes (IC50s = 0.4 and 2.2 nM, respectively), which can be reduced by sodium chloride and guanylyl imidodiphosphate . Neuromedin C induces scratching and mast cell degranulation in mice when administered intradermally at doses ranging from 1 to 300 nmol site, which is inhibited by the BB2 bombesin receptor agonist RC-3095 and reduced in mast cell-deficient mice. Neuromedin C (3.2 nmol kg, i.p.) reduces rat glucose consumption by approximately 50% for up to one hour.
Brain-derived acidic fibroblast growth factor (102-111) is a peptide fragment of brain-derived acidic fibroblast growth factor (aFGF). aFGF is an angiogenic vascular endothelial cell mitogen produced in bovine brain that has sequence homology to interleukin-1. It also shares sequence homology with the known neuropeptides neuromedin C , bombesin , neuromedin K , substance K , substance P , physalaemin, and eledoisin. aFGF (102-111) corresponds to amino acid residues 102-111 of the fulllength peptide.