Gonadotropin-inhibitory hormone as a regulator of social interactions in vertebrates

Yasuko Tobari, Yana Aleksandrova, Yoko Fukahori, Kazuyoshi Tsutsui, Simone Meddle

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The social environment changes circulating hormone levels and expression of social behavior in animals. Social information is perceived by sensory systems, leading to cellular and molecular changes through neural processes. Peripheral reproductive hormone levels are regulated by activity in the hypothalamus-pituitary-gonadal (HPG) axis. Until the end of the last century, the neurochemical systems that convey social information to the HPG axis were not well understood. Gonadotropin-inhibitory hormone (GnIH) was the first hypothalamic neuropeptide shown to inhibit gonadotropin release, in 2000. GnIH is now regarded as a negative upstream regulator of the HPG axis, and it is becoming increasingly evident that it responds to social cues. In addition to controlling reproductive physiology, GnIH seems to modulate the social behavior of animals. Here, we review studies investigating how GnIH neurons respond to social information and describe the mechanisms through which GnIH regulates social behavior.
Original languageEnglish
Article number100954
JournalFrontiers in neuroendocrinology
Early online date29 Oct 2021
Publication statusE-pub ahead of print - 29 Oct 2021


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