Abstract
Galanin-like peptide (GALP) is composed of 60 amino acid residues and its sequence is highly homologous across species. GALP is produced in the hypothalamic arcuate nucleus and has diverse physiological effects such as the regulation of feeding, energy metabolism, and reproductive behavior. GALP-containing neurons express leptin receptors and these neurons form networks in the hypothalamus that contain various peptides that regulate feeding behavior. Recent studies have revealed that GALP has a central anti-obesity action in addition to its role in food intake regulation. Furthermore, we have found that the respiratory quotient declines shortly after administration of GALP into the lateral ventricle. This suggests that lipid metabolism is accelerated by GALP administration, and identifies a new physiological action for this peptide. In this review article, we summarize our recent research focusing on the mechanism whereby GALP regulates feeding and energy metabolism. We concentrate on the mechanism of regulation of lipid metabolism in peripheral tissues via the autonomic nervous system and outline the effectiveness of the nasal administration of GALP and basic research towards its clinical application.
Keywords: Feeding regulation, energy metabolism, heat production, neuron network, intranasal infusion, Galanin-like peptide (GALP).
Current Pharmaceutical Design
Title:Regulation of Feeding Behavior and Energy Metabolism by Galanin-like Peptide (GALP): A Novel Strategy to Fight Against Obesity
Volume: 24 Issue: 33
Author(s): Fumiko Takenoya, Satoshi Hirako, Nobuhiro Wada, Naoko Nonaka, Takahiro Hirabayashi, Haruaki Kageyama and Seiji Shioda*
Affiliation:
- Hoshi University School of Pharmacy and Pharmaceutical Sciences, Global Research Center for Innovative Life Science, Peptide Drug Innovation, Tokyo 142-8501,Japan
Keywords: Feeding regulation, energy metabolism, heat production, neuron network, intranasal infusion, Galanin-like peptide (GALP).
Abstract: Galanin-like peptide (GALP) is composed of 60 amino acid residues and its sequence is highly homologous across species. GALP is produced in the hypothalamic arcuate nucleus and has diverse physiological effects such as the regulation of feeding, energy metabolism, and reproductive behavior. GALP-containing neurons express leptin receptors and these neurons form networks in the hypothalamus that contain various peptides that regulate feeding behavior. Recent studies have revealed that GALP has a central anti-obesity action in addition to its role in food intake regulation. Furthermore, we have found that the respiratory quotient declines shortly after administration of GALP into the lateral ventricle. This suggests that lipid metabolism is accelerated by GALP administration, and identifies a new physiological action for this peptide. In this review article, we summarize our recent research focusing on the mechanism whereby GALP regulates feeding and energy metabolism. We concentrate on the mechanism of regulation of lipid metabolism in peripheral tissues via the autonomic nervous system and outline the effectiveness of the nasal administration of GALP and basic research towards its clinical application.
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Cite this article as:
Takenoya Fumiko , Hirako Satoshi , Wada Nobuhiro , Nonaka Naoko, Hirabayashi Takahiro, Kageyama Haruaki and Shioda Seiji *, Regulation of Feeding Behavior and Energy Metabolism by Galanin-like Peptide (GALP): A Novel Strategy to Fight Against Obesity, Current Pharmaceutical Design 2018; 24 (33) . https://dx.doi.org/10.2174/1381612824666181106111623
DOI https://dx.doi.org/10.2174/1381612824666181106111623 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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