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Sci Rep. 2016 Sep 9;6:32935. doi: 10.1038/srep32935.

24-hour-restraint stress induces long-term depressive-like phenotypes in mice.

Author information

1
Bio-X Institutes, Key Laboratory for the Genetics of Development and Neuropsychiatric Disorders (Ministry of Education), Shanghai Key Laboratory of Psychotic Disorders, and Brain Science and Technology Research Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
2
School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
3
Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, Hubei, China.
4
National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 100094, China.
5
Wuxi Mental Health Center, 156 Qianrong Road, Wuxi 214151, Jiangsu, China.

Abstract

There is an increasing risk of mental disorders, such as acute stress disorder (ASD), post-traumatic stress disorder (PTSD) and depression among survivors who were trapped in rubble during earthquake. Such long-term impaction of a single acute restraint stress has not been extensively explored. In this study, we subjected mice to 24-hour-restraint to simulate the trapping episode, and investigated the acute (2 days after the restraint) and long-term (35 days after the restraint) impacts. Surprisingly, we found that the mice displayed depression-like behaviors, decreased glucose uptake in brain and reduced adult hippocampal neurogenesis 35 days after the restraint. Differential expression profiling based on microarrays suggested that genes and pathways related to depression and other mental disorders were differentially expressed in both PFC and hippocampus. Furthermore, the depression-like phenotypes induced by 24-hour-restraint could be reversed by fluoxetine, a type of antidepressant drug. These findings demonstrated that a single severe stressful event could produce long-term depressive-like phenotypes. Moreover, the 24-hour-restraint stress mice could also be used for further studies on mood disorders.

PMID:
27609090
PMCID:
PMC5016966
DOI:
10.1038/srep32935
[Indexed for MEDLINE]
Free PMC Article

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