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Role of NMDA receptor subtypes in governing the direction of hippocampal synaptic plasticity
Author(s): Liu LD, Wong TP, Pozza MF, Lingenhoehl K, Wang YS, Sheng M, Auberson YP, Wang YT
Source: SCIENCE    Volume: 304    Issue: 5673    Pages: 1021-1024    Published: MAY 14 2004  
Times Cited: 340     References: 36     
Abstract: Activation of N-methyl-D-aspartate subtype glutamate receptors (NMDARs) is required for long-term potentiation (LTP) and long-term depression (LTD) of excitatory synaptic transmission at hippocampal CA1 synapses, the proposed cellular substrates of learning and memory. However, little is known about how activation of NMDARs leads to these two opposing forms of synaptic plasticity. Using hippocampal slice preparations, we showed that selectively blocking NMDARs that contain the NR2B subunit abolishes the induction of LTD but not LTP. In contrast, preferential inhibition of NR2A-containing NMDARs prevents the induction of LTP without affecting LTD production. These results demonstrate that distinct NMDAR subunits are critical factors that determine the polarity of synaptic plasticity.
Document Type: Article
Language: English
Reprint Address: Wang, YT (reprint author), Univ British Columbia, Brain Res Ctr, 2211 Wesbrook Mall, Vancouver, BC V6T 2B5 Canada
Addresses:
1. Univ British Columbia, Brain Res Ctr, Vancouver, BC V6T 2B5 Canada
2. Novartis Pharma AG, Novartis Inst Biomed Res, CH-4002 Basel, Switzerland
3. MIT, Picower Ctr Learning & Memory, RIKE MIT Neurosci Res Ctr, Howard Hughes Med Inst, Cambridge, MA 02139 USA
Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
Subject Category: Multidisciplinary Sciences
IDS Number: 820IV
ISSN: 0036-8075
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