<unk>  has 20 amino acids, and is a member of the RFamide<unk>  family. During the discovery process,<unk>  was found to be a ligand for an orphan G-protein coupled receptor (GPR 10). Preliminary in vitro studies showed it to stimulate the secretion of<unk>  from lactotropic cells, hence its name. Now, however, the function of<unk>  in the brain is understood in terms of negative regulation of appetite.<unk>  is produced by noradrenergic neurons A1 and A2 in the solitary nucleus, and also by neurons in the hypothalamus.
Prolactin-releasing peptide
Growth hormone–releasing hormone
Gonadotropin-releasing hormone
Counterregulatory hormone
Somatostatin
Histrelin
Adrenocortical hormone
Agouti-related peptide