Courtship interactions stimulate rapid changes in GnRH synthesis in male ring doves.

Hormones and Behavior
Kristen E ManteiJohn D Buntin

Abstract

Many birds and mammals show changes in the hypothalamo-pituitary-gonadal (HPG) axis in response to social or sexual interactions between breeding partners. While alterations in GnRH neuronal activity play an important role in stimulating these changes, it remains unclear if acute behaviorally-induced alterations in GnRH release are accompanied by parallel changes in GnRH synthesis. To investigate this relationship, we examined changes in the activity of GnRH neurons in the brains of male ring doves following brief periods of courtship interactions with females. Such interactions have been previously shown to increase plasma LH in courting male doves at 24 h, but not at 1 h, after pairing with females. In the first study, males allowed to court females for 2 h had 60% more cells that showed immunocytochemical labeling for GnRH-I in the preoptic area (POA) of the hypothalamus than did control males that remained isolated from females. To determine whether an increase in GnRH gene expression preceded this increase in GnRH immunoreactivity in the POA, changes in the number of cells with detectable GnRH-I mRNA in the POA were measured by in situ hybridization following a 1 h period of courtship interactions with females. In this sec...Continue Reading

Citations

Apr 25, 2012·Annual Review of Neuroscience·Russell D Fernald
Oct 11, 2012·American Journal of Physiology. Endocrinology and Metabolism·Johanna R RochesterPei-San Tsai
Feb 3, 2016·Hormones and Behavior·Heather E WattsThomas P Hahn
May 21, 2013·Frontiers in Neuroendocrinology·Mei-Fang Cheng
Mar 30, 2011·Hormones and Behavior·Mei-Fang ChengLing-Shiang Chuang
Mar 30, 2010·General and Comparative Endocrinology·Julio BlasFernando Hiraldo
Oct 9, 2012·Frontiers in Neuroendocrinology·T J StevensonG F Ball
Dec 16, 2011·Physiology·Karen P Maruska, Russell D Fernald
Sep 26, 2017·Frontiers in Neuroscience·Mariela Faykoo-MartinezMelissa M Holmes
May 10, 2019·Frontiers in Endocrinology·Yasuko Tobari, Kazuyoshi Tsutsui
Nov 3, 2020·Frontiers in Cellular Neuroscience·Michal P JurkowskiJoana Gil-Mohapel
Nov 6, 2021·Human Nature : an Interdisciplinary Biosocial Perspective·Melvin Konner
Nov 11, 2021·Frontiers in Neuroendocrinology·Yasuko TobariSimone L Meddle

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