PMID: 7544020May 4, 1995Paper

The galanin-induced feeding stimulation is mediated via alpha 2-adrenergic receptors in goldfish

Regulatory Peptides
N de PedroM Alonso-Bedate

Abstract

In the present study we examined the effects of intracerebroventricular (ICV) or intraperitoneal (IP) galanin administration on food intake in satiated goldfish, at different time intervals after injections, 0-2, 2-8 and 0-8 h. We found that food intake was increased by ICV administered galanin (1 and 3.33 micrograms) at 2 and 8 h postinjection, while no modifications on feeding were observed after intraperitoneal injection in any of the studied time intervals. The galanin receptor antagonist, galantide, blocked the galanin-induced feeding increase. Pretreatment with yohimbine (alpha 2-adrenergic receptor antagonist), but not with prazosin (alpha 1-adrenergic receptor antagonist) antagonized the stimulatory effect of galanin on ingestive behavior. These results suggest that galanin is involved in the central regulation of feeding in goldfish, being the food intake stimulatory effect mediated by the alpha 2-adrenergic system.

Citations

Feb 23, 2018·Journal of Molecular Endocrinology·José Luis SoengasMaría Jesús Delgado
Aug 12, 2006·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Hiroshi Kawauchi
Feb 6, 2008·Zebrafish·Helene Volkoff, Richard E Peter
Jan 9, 2009·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Rosaria SciarrilloMaria De Falco
Nov 18, 2016·Frontiers in Neuroscience·Tetsuya Tachibana, Kazuyoshi Tsutsui
May 2, 2017·Frontiers in Endocrinology·Ivar RønnestadHélène Volkoff
Dec 5, 2020·Nature Reviews. Endocrinology·Edouard G MillsWaljit S Dhillo
May 3, 2005·General and Comparative Endocrinology·H VolkoffR E Peter
Aug 19, 2007·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·D V GarinaYu V Gerasimov

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