PACAP (1-38), a novel neuropeptide isolated from the bovine hypothalamus is more active than vasoactive intestinal peptide (VIP) in stimulating adenylate cyclase (EC50=7 nM). PACAP 1-38 (10-9 M) increased substance P (SP), gastrin releasing peptide (GRP), and VIP release. PACAP 1-38 (10-8 M) inhibited gastrin secretion and stimulated somatostatin secretion and motility dose-dependently.

R121919 (NBI30775) is a potent small molecule antagonist of the adrenocorticotropic hormone-releasing factor receptor 1 (CRF1), demonstrating antidepressant and anxiolytic activity, and inhibiting the CRF1 receptor, CRF2 receptor, and CRF-binding proteins.

This is amino acids 427 to 441 fragment belongs to the FliC, serotype a of the S. FliC epitope recognized by a CD4+ T cell from naturally infected C57BL/6 mice is located in a region common to a number of distinct Salmonella serovars such as the S. paratyphi.This dominant epitope is contained within the constant C-terminus of FliC.