AUTHOR=Tsutsui Kazuyoshi , Ubuka Takayoshi TITLE=GnIH Control of Feeding and Reproductive Behaviors JOURNAL=Frontiers in Endocrinology VOLUME=Volume 7 - 2016 YEAR=2016 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2016.00170 DOI=10.3389/fendo.2016.00170 ISSN=1664-2392 ABSTRACT=In 2000, Tsutsui and colleagues discovered gonadotropin-inhibitory hormone (GnIH) that actively inhibits gonadotropin release and synthesis in birds. Subsequently, extensive studies over the past decade and a half have demonstrated that GnIH is a key neurohormone regulating reproduction across vertebrates, acting on the brain and pituitary to modulate reproduction and reproductive behavior. On the other hand, food deprivation and other metabolic challenges inhibit reproductive axis functioning and sexual motivation. Interestingly, recent studies have further indicated that GnIH controls feeding behavior in vertebrates, such as birds and mammals. This review summarizes the discovery of GnIH and its conservation in vertebrates and the neuroendocrine control of feeding behavior and reproductive behavior by GnIH.