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KMID : 0892920220310060361
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Experimental Neurobiology
2022 Volume.31 No. 6 p.361 ~ p.375
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Dopamine Receptor Supports the Potentiation of Intrinsic Excitability and Synaptic LTD in Temporoammonic-CA1 Synapse
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Kim Hye-Hyun
Lee Suk-Ho
Ho Won-Kyung
Eom Ki-Sang
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Abstract
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Dopaminergic projection to the hippocampus from the ventral tegmental area or locus ceruleus has been considered to play an essential role in the acquisition of novel information. Hence, the dopaminergic modulation of synaptic plasticity in the hippocampus has been widely studied. We examined how the D1 and D2 receptors influenced the mGluR5-mediated synaptic plasticity of the temporoammonic-CA1 synapses and showed that the dopaminergic modulation of the temporoammonic-CA1 synapses was expressed in various ways. Our findings suggest that the dopaminergic system in the hippocampal CA1 region regulates the long-term synaptic plasticity and processing of the novel information.
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KEYWORD
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Dopamine, Temporoammonic pathway, CA1, LTD
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