1. 1) T. Sakurai, A. Amemiya, M. Ishii, I. Matsuzaki, R. M. Chemelli, H. Tanaka, S. C. Williams, J. A. Richardson, G. P. Kozlowski, S. Wilson, J. R. Arch, R. E. Buckingham, A. C. Haynes, S. A. Carr, R. S. Annan, D. E. McNulty, W. S. Liu, J. A. Terrett, N. A. Elshourbagy, D. J. Bergsma, M. Yanagisawa. Orexins and orexin receptors: A family of hypothalamic neuropeptides and G protein-coupled receptors that regulate feeding behavior. Cell 92: 573–585, 1998.
2. 2) J. T. Clark, P. S. Kalra, W. R. Crowley, S. P. Kalra. Neuropeptide Y and human pancreatic polypeptide stimulate feeding behavior in rats. Endocrinology 115: 427–429, 1984.
3. 3) J. T. Clark, P. S. Kalra, S. P. Kalra. Neuropeptide Y stimulates feeding but inhibits sexual behavior in rats. Endocrinology 117: 2435–2442, 1985.
4. 4) K. Tatemoto, Y. Neuropeptide. Complete amino acid sequence of the brain peptide. Proc. Natl. Acad. Sci. U.S.A. 79: 5485–5489, 1982.
5. 5) S. Horsten, T. Hoffmann, M. Alfalah, C. D. Wrnn, T. Karl, R. Pabst, S. Bedoui. in Handbook of Experimental Pharmacology, Vol. 162 (Ed.: M. C. Michel), Springer-Verlag, Berlin Heidelberg, pp. 23–44, 2004.