Brain-derived neurotrophic factor (BDNF) overexpression in the forebrain results in learning and memory impairments

In this study we analyzed the effect on behavior of a chronic exposure to brain-derived neurotrophic factor (BDNF), by analysing a mouse line overexpressing BDNF under the αCaMKII promoter, which drives the transgene expression exclusively to principal neurons of the forebrain. BDNF transgenic mice...

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Bibliographic Details
Main Authors: Carla Cunha, Andrea Angelucci, Angela D'Antoni, Mate D. Dobrossy, Stephen B. Dunnett, Nicoletta Berardi, Riccardo Brambilla
Format: Article
Language:English
Published: Elsevier 2009-03-01
Series:Neurobiology of Disease
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Online Access:http://www.sciencedirect.com/science/article/pii/S0969996108002775
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Summary:In this study we analyzed the effect on behavior of a chronic exposure to brain-derived neurotrophic factor (BDNF), by analysing a mouse line overexpressing BDNF under the αCaMKII promoter, which drives the transgene expression exclusively to principal neurons of the forebrain. BDNF transgenic mice and their WT littermates were examined with a battery of behavioral tests, in order to evaluate motor coordination, learning, short and long-term memory formation. Our results demonstrate that chronic BDNF overexpression in the central nervous system (CNS) causes learning deficits and short-term memory impairments, both in spatial and instrumental learning tasks. This observation suggests that a widespread increase in BDNF in forebrain networks may result in adverse effects on learning and memory formation.
ISSN:1095-953X