Environmental modulation of anxiety-related neuronal activity and behaviors

被引:12
作者
Bilkei-Gorzo, Andras [1 ]
Otto, Martin [1 ]
Zimmer, Andreas [1 ]
机构
[1] Univ Bonn, Inst Mol Psychiat, D-53125 Bonn, Germany
关键词
anxiety behavior; environmental effect; c-fos; limbic system; preproenkephalin knockout; amphetamine;
D O I
10.1016/j.bbr.2007.08.027
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Enkephalin-deficient knockout mice, a genetic model of enhanced anxiety responses, and wild-type controls were housed in two separate facilities on the same campus using different caging systems. Stress reactivity was evaluated in these animals using a zero-maze test followed by c-Fos expression analysis in limbic brain regions. Animals with genetically or pharmacologically enhanced anxiety reared and tested in the same facility displayed similar behavioral reactivity and c-Fos induction. However, we found much stronger anxiety-related behavioral responses and higher c-Fos levels when animals were house in individually ventilated cages, independent of their genetic background. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:289 / 292
页数:4
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