Abstract
Carnosine (β-alanyl-L-histidine) is rich in the skeletal muscle and brain, but the function of dipeptides like carnosine in the brain has not been clarified. We previously showed that β-alanyl dipeptides with carboxyl terminal branched chain amino acids induced hyperactivity in chicks when intracerebroventricularly (i.c.v.) administrated. In the present study we investigated the effect of amino terminal histidine related dipeptides under isolation induced stress. I.c.v. injection of L-seryl-L-histidine and L-isoleucyl-L-histidine induced sedation with a weak hypnotic effect, and L-valyl-Lhistidine lowered spontaneous activity in chicks. However, L-alanyl-L-histidine, glycyl-L-histidine and L-methionyl-Lhistidine had no significant effects in all parameteres determined. These results indicate that L-seryl-L-histidine and Lisoleucyl- L-histidine dipeptides may be effective in improving anxiety and have novel functional effects in the brain.
Keywords: Carnosine, Histidine, Dipeptides, Intracerebroventricular injection, Brain, Chicks
Letters in Drug Design & Discovery
Title: Central Administration of L-Ser-L-His and L-Ile-L-His Induced Sedative Effects Under an Acute Stressful Condition in Chicks
Volume: 5 Issue: 1
Author(s): Mitsuhiro Furuse, Yousuke Tsuneyoshi, Shozo Tomonaga, Haruka Yamane, Koji Morishita and D. Michael Denbow
Affiliation:
Keywords: Carnosine, Histidine, Dipeptides, Intracerebroventricular injection, Brain, Chicks
Abstract: Carnosine (β-alanyl-L-histidine) is rich in the skeletal muscle and brain, but the function of dipeptides like carnosine in the brain has not been clarified. We previously showed that β-alanyl dipeptides with carboxyl terminal branched chain amino acids induced hyperactivity in chicks when intracerebroventricularly (i.c.v.) administrated. In the present study we investigated the effect of amino terminal histidine related dipeptides under isolation induced stress. I.c.v. injection of L-seryl-L-histidine and L-isoleucyl-L-histidine induced sedation with a weak hypnotic effect, and L-valyl-Lhistidine lowered spontaneous activity in chicks. However, L-alanyl-L-histidine, glycyl-L-histidine and L-methionyl-Lhistidine had no significant effects in all parameteres determined. These results indicate that L-seryl-L-histidine and Lisoleucyl- L-histidine dipeptides may be effective in improving anxiety and have novel functional effects in the brain.
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Cite this article as:
Furuse Mitsuhiro, Tsuneyoshi Yousuke, Tomonaga Shozo, Yamane Haruka, Morishita Koji and Denbow Michael D., Central Administration of L-Ser-L-His and L-Ile-L-His Induced Sedative Effects Under an Acute Stressful Condition in Chicks, Letters in Drug Design & Discovery 2008; 5 (1) . https://dx.doi.org/10.2174/157018008783406679
DOI https://dx.doi.org/10.2174/157018008783406679 |
Print ISSN 1570-1808 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-628X |
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