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Chronic immobilization stress induces anxiety- and depression-like behaviors and decreases transthyretin in the mouse cortex
- Authors
- Joo, Yeon; Choi, Kyung Mi; Lee, Young Hyurk; Kim, Gyeongwha; Lee, Dong Hoon; Roh, Gu Seob; Kang, Sang Soo; Cho, Gyeong Jae; Choi, Wan Sung; Kim, Hyun Joon
- Issue Date
- Sep-2009
- Publisher
- Elsevier BV
- Keywords
- Chronic stress; Anxiety; Depression; Cortical gene expression; Transthyretin
- Citation
- Neuroscience Letters, v.461, no.2, pp 121 - 125
- Pages
- 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- Neuroscience Letters
- Volume
- 461
- Number
- 2
- Start Page
- 121
- End Page
- 125
- ISSN
- 0304-3940
1872-7972
- Abstract
- In this study, we examined the changes in gene expression in the mouse cortex following chronic stress and behavioral tests. Mice were subjected to immobilization stress for 2 h per day for 15 consecutive days and the behavior of the mice was examined. The mice in the experimental group were more anxious and depressive than the control mice. The expression of mRNA in the cortex was analyzed by microarray analysis and 63 genes were found to show a greater than twofold change in expression between the control and experimental groups. Transthyretin was further investigated because its expression showed the greatest fold change. Transthyretin mRNA expression decreased in a chronic stress-specific manner, and protein levels were reduced in the cortex but not in the choroid plexus. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
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