Effects of ghrelin on circulating neuropeptide Y levels in humans. Coiro V, Saccani-Jotti G, Rubino P, Manfredi G, Melani A, Chiodera P. Journal Article 2006; 27(6): 755-757 PubMed PMID: 17187020 Keywords: Adult, Ghrelin, Humans, Injections, Intravenous, Male, Neuropeptide Y:blood, Peptide Hormones:administration & dosage, Reference Values, Stimulation, Chemical,. Citation OBJECTIVE: Ghrelin is a 28 amino-acid peptide with a strong GH-releasing activity and a complex role in regulation of appetite, fuel utili..... Read abstract Full text PDF