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Enhanced CREB-dependent gene expression increases the excitability of neurons in the basal amygdala and primes the consolidation of contextual and cued fear memory

AuthorsViosca, José; López de Armentia, Mikel; Jancic, Dragana; Barco, Ángel
Issue Date2009
PublisherCold Spring Harbor Laboratory Press
CitationLearning and Memory 16(3): 193- 197 (2009)
AbstractRegulated expression of a constitutively active form of cAMP response element-binding protein (CREB), VP16-CREB, lowers the threshold for the late phase of long-term potentiation in the Schaffer collateral pathway in a de novo gene expression-independent manner, and increases the excitability and reduces afterhyperpolarization of neurons at the amygdala and the hippocampus. We explore the consequences of these changes on the consolidation of fear conditioning and find that the expression of VP16-CREB can bypass the requirement for de novo gene expression associated with long- term memory formation, suggesting that CREB-dependent gene expression is sufficient for fear memory consolidation. © 2009 Cold Spring Harbor Laboratory Press.
Identifiersdoi: 10.1101/lm.1254209
issn: 1072-0502
e-issn: 1549-5485
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