Social rank-dependent expression of gonadotropin-releasing hormones and kisspeptin in the medaka brain

Highlights • Male medaka established social hierarchy after male-male competition. • The expressions of GnRH1 and Kiss1 were higher in dominant than in subordinate. • Subordinate showed higher GnRH3 expression than dominant. • No difference in plasma 11-KT level was shown between dominant and subord...

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Bibliographic Details
Published in:General and comparative endocrinology 2017-08, Vol.249, p.48-54
Main Authors: Kagawa, Nao, Hirose, Sayuri, Fujimoto, Keiko, Nomura, Chihomi, Fujita, Yuuma, Honda, Akira, Komori, Mai
Format: Article
Language:English
Subjects:
11-Ketotestosterone
Aggression
Animals
Behavior, Animal
Brain - metabolism
Endocrinology & Metabolism
Gonadotropin-releasing hormone
Gonadotropin-Releasing Hormone - genetics
Gonadotropin-Releasing Hormone - metabolism
Hierarchy, Social
Kisspeptin
Kisspeptins - genetics
Kisspeptins - metabolism
Male
Male-male competition
Medaka
Oryzias - blood
Oryzias - metabolism
Social rank
Testosterone - analogs & derivatives
Testosterone - blood
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Summary:Highlights • Male medaka established social hierarchy after male-male competition. • The expressions of GnRH1 and Kiss1 were higher in dominant than in subordinate. • Subordinate showed higher GnRH3 expression than dominant. • No difference in plasma 11-KT level was shown between dominant and subordinate. • Social rank had effects neuropeptide levels but not androgen levels in male medaka.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2017.03.001