Role of ionotropic glutamate receptors in LTP in rat hippocampal CA1 oriens-lacunosum moleculare interneurons

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Role of ionotropic glutamate receptors in long-term potentiation in rat hippocampal CA1 oriens-lacunosum moleculare interneurons.

Some interneurons of the hippocampus exhibit NMDA receptor-independent long-term potentiation (LTP) that is induced by presynaptic glutamate release when the postsynaptic membrane potential is hyperpolarized. This "anti-Hebbian" form of LTP is prevented by postsynaptic depolarization or by blocking AMPA and kainate receptors. Although both AMPA and kainate receptors are expressed in hippocampal...

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GABAergic interneurons of the hippocampus play an important role in the generation of behaviorally relevant network oscillations. Among this heterogeneous neuronal population, somatostatin (SOM)-positive oriens-lacunosum moleculare (O-LM) interneurons are remarkable because they are tuned to operate at theta frequencies (6-10 Hz) in vitro and in vivo. Recent studies show that a high proportion ...

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ژورنال

عنوان ژورنال: Frontiers in Systems Neuroscience

سال: 2009

ISSN: 1662-5137

DOI: 10.3389/conf.neuro.01.2009.04.210