Central administration of galanin stimulates feeding behavior in chicks

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
Tetsuya TachibanaKohzy Hiramatsu

Abstract

Galanin is recognized as one of the orexigenic peptides in the brain of mammals and fishes. The amino acid sequence of chicken galanin and its distribution in the brain are similar to those of mammals, suggesting that the brain galanin might be related to feeding regulation in chicks. The purpose of the present study was to investigate whether intracerebroventricular (ICV) injection of galanin affected feeding behavior of chicks (Gallus gallus). The injection of galanin increased food intake of layer and broiler chicks. We also found that the galanin-induced feeding behavior was attenuated in layer chicks by the co-injection of yohimbine and beta-funaltrexamine, which are the antagonists of adrenergic alpha-2 receptor and opioid mu-receptor, respectively. It is therefore possible that the orexigenic effect of galanin is mediated by these receptors.

References

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Dec 27, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Tetsuya TachibanaMitsuhiro Furuse

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Citations

Oct 28, 2010·General and Comparative Endocrinology·John Chi Wang HoFrederick C Leung
Feb 24, 2009·General and Comparative Endocrinology·Tetsuya TachibanaMark A Cline
Jun 16, 2009·General and Comparative Endocrinology·Tetsuya TachibanaKohzy Hiramatsu
Feb 24, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Md Sakirul Islam KhanHiroshi Ueda
Jul 8, 2015·Behavioural Brain Research·Betty R McConnMark A Cline
Sep 18, 2012·General and Comparative Endocrinology·John Chi Wang HoFrederick C Leung
Aug 23, 2012·General and Comparative Endocrinology·Penghua FangPing Bo
Aug 31, 2019·The Journal of Comparative Neurology·Joel A Tripp, Andrew H Bass
Nov 18, 2016·Frontiers in Neuroscience·Tetsuya Tachibana, Kazuyoshi Tsutsui
Dec 5, 2020·Nature Reviews. Endocrinology·Edouard G MillsWaljit S Dhillo

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