Title |
Forced swim test induces divergent global transcriptomic alterations in the hippocampus of high versus low novelty-seeker rats
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Published in |
Human Genomics, February 2014
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DOI | 10.1186/1479-7364-8-4 |
Pubmed ID | |
Authors |
Pothitos M Pitychoutis, Despina Sanoudou, Margarita Papandreou, Dimitris Nasias, Marianna Kouskou, Craig R Tomlinson, Panagiotis A Tsonis, Zeta Papadopoulou-Daifoti |
Abstract |
Many neuropsychiatric disorders, including stress-related mood disorders, are complex multi-parametric syndromes. Susceptibility to stress and depression is individually different. The best animal model of individual differences that can be used to study the neurobiology of affect regards spontaneous reactions to novelty. Experimentally, when naive rats are exposed to the stress of a novel environment, they display a highly variable exploratory activity and are classified as high or low responders (HR or LR, respectively). Importantly, HR and LR rats do not seem to exhibit a substantial differentiation in relation to their 'depressive-like' status in the forced swim test (FST), a widely used animal model of 'behavioral despair'. In the present study, we investigated whether FST exposure would be accompanied by phenotype-dependent differences in hippocampal gene expression in HR and LR rats. |
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