Deficits in memory and hippocampal long-term potentiation in mice with reduced calbindin D28K expression.
Proc Natl Acad Sci U S A
; 93(15): 8028-33, 1996 Jul 23.
Article
in En
| MEDLINE
| ID: mdl-8755597
ABSTRACT
The influx of calcium into the postsynaptic neuron is likely to be an important event in memory formation. Among the mechanisms that nerve cells may use to alter the time course or size of a spike of intracellular calcium are cytosolic calcium binding or "buffering" proteins. To consider the role in memory formation of one of these proteins, calbindin D28K, which is abundant in many neurons, including the CA1 pyramidal cells of the hippocampus, transgenic mice deficient in calbindin D28K have been created. These mice show selective impairments in spatial learning paradigms and fail to maintain long-term potentiation. These results suggest a role for calbindin D28K protein in temporally extending a neuronal calcium signal, allowing the activation of calcium-dependent intracellular signaling pathways underlying memory function.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
S100 Calcium Binding Protein G
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Long-Term Potentiation
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Maze Learning
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Hippocampus
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Memory
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Nerve Tissue Proteins
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Neurons
Limits:
Animals
Language:
En
Journal:
Proc Natl Acad Sci U S A
Year:
1996
Document type:
Article
Affiliation country:
Italy