Journal
PLOS ONE
Volume 6, Issue 2, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0017010
Keywords
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Categories
Funding
- DURSI [09 2009SGR1313, SGR091527]
- FIS [PI 082038, PI041559]
- Marato TV3
- Jerome Lejeune
- Reina Sofia
- Areces Foundations
- EU [LSHG-CT-2006-037627, CureFXS E-Rare: EU/FIS PS09102673]
- [FCT-08-0782]
- [SAF2007-60827]
- [SAF2010-16427]
- [SAF2007-31093-E]
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DSCR1/RCAN1 is a chromosome 21 gene found to be overexpressed in the brains of Down syndrome (DS) and postulated as a good candidate to contribute to mental disability. However, even though Rcan1 knockout mice have pronounced spatial learning and memory deficits, the possible deleterious effects of its overexpression in DS are not well understood. We have generated a transgenic mouse model overexpressing DSCR1/RCAN1 in the brain and analyzed the effect of RCAN1 overexpression on cognitive function. TgRCAN1 mice present a marked disruption of the learning process in a visuo-spatial learning task. However, no significant differences were observed in the performance of the memory phase of the test (removal session) nor in a step-down passive avoidance task, thus suggesting that once learning has been established, the animals are able to consolidate the information in the longer term.
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