Journal of Neuroscience and Behavioral Health
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Article Number - CB7ABF88572


Vol.5(1), pp. 5-12 , March 2013
DOI: 10.5897/JNBH12.006
ISSN: 2141-2286



Full Length Research Paper

Differential behavioral outcome of anxiety tests in runner rats treated with corticosterone



Suk-Yu Yau
  • Suk-Yu Yau
  • Department of Anatomy, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.State Key laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.Research Centre of Heart, Brain, Hormone and Health Aging, SAR, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.
  • Google Scholar
Benson Wui-Man Lau
  • Benson Wui-Man Lau
  • Department of Anatomy, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.State Key laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.
  • Google Scholar
Tatia M. C. Lee
  • Tatia M. C. Lee
  • State Key laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.Laboratory of Neuropsychology, University of Hong Kong, SAR, Hong Kong.Institute of Clinical Neuropsychology, University of Hong Kong, SAR, Hong Kong.Laboratory of Cognitive Affective Neuroscience, University of Hong Kong, SAR, Hong Kong.
  • Google Scholar
Kwok-Fai So
  • Kwok-Fai So
  • Department of Anatomy, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.State Key laboratory of Brain and Cognitive Science, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.Research Centre of Heart, Brain, Hormone and Health Aging, SAR, Li Ka Shing Faculty of Medicine, University of Hong Kong, SAR, Hong Kong.JGHM Institute of CNS Regneration, Jinan University and The University of Hong Kong, Guangzhou, China
  • Google Scholar







 Accepted: 04 December 2012  Published: 31 March 2013

Copyright © 2013 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Both clinical and pre-clinical studies have suggested that physical exercise is beneficial for lowering anxiety. However, some animal studies fail to demonstrate the anxiolytic effect of physical exercise. The inconsistencies among studies may be due to differences in animal models and behavioral tests. Previously, injection of corticosterone (CORT) for 14 days induced depression-like behavior to varying based on was shown. Animal model was used to investigate whether CORT treatment induced anxiety-like behavior and to examine the anxiolytic effect of voluntary running using two behavioral measurements: open field test and elevated plus maze. Results indicated that running reduced anxiety-like behavior in vehicle-treated animals in both tests. Treatment with CORT showed a significant anxiogenic effect in the open field test regardless of the doses, but not in the elevated plus maze. Running reduced anxiety in theopen field test, but showed no effect in elevated plus maze in the CORT-treated rats. The data suggest the discrepancy of these two anxiety-related measures in the animal model of stress.

 

Key words: Corticosterone (CORT), stress, voluntary running, open field test, elevated plus maze, anxiety-like behavior.

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APA (2013). Differential behavioral outcome of anxiety tests in runner rats treated with corticosterone. Journal of Neuroscience and Behavioral Health, 5(1), 5-12.
Chicago Suk-Yu Yau,, Benson Wui-Man Lau, Tatia M. C. Lee,, and Kwok-Fai So,,. "Differential behavioral outcome of anxiety tests in runner rats treated with corticosterone." Journal of Neuroscience and Behavioral Health 5, no. 1 (2013): 5-12.
MLA Suk-Yu Yau, et al. "Differential behavioral outcome of anxiety tests in runner rats treated with corticosterone." Journal of Neuroscience and Behavioral Health 5.1 (2013): 5-12.
   
DOI 10.5897/JNBH12.006
URL http://academicjournals.org/journal/JNBH/article-abstract/CB7ABF88572

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