Kentu Lassiter et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 308(3), R173-R187 (2014-12-17)
Orexin A and B, orexigenic peptides produced primarily by the lateral hypothalamus that signal through two G protein-coupled receptors, orexin receptors 1/2, have been implicated in the regulation of several physiological processes in mammals. In avian (nonmammalian vertebrates) species; however