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NEUROSCIENCE: Controlling the Ups and Downs of Synaptic Strength
Tim Bliss and Ralf Schoepfer
Neuroscientists have long been puzzled by the fact that N-methyl-D-aspartate (NMDA) receptors can both boost and dampen synaptic efficiency in the brain. In their Perspective, Bliss and Schoepfer reveal specific roles for NMDA receptor subtypes. According to new work (Liu et al.), the NMDA receptor supports either long-term potentiation or long-term depression, depending on whether the receptor contains NR2A or NR2B subunits, respectively.
T. Bliss is in the Division of Neurophysiology, National Institute for Medical Research, Mill Hill, London NW7 1AA, UK. R. Schoepfer is in the Department of Pharmacology, University College London, London WC1E 6BT, UK. E-mail: tbliss{at}nimr.mrc.ac.uk
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REPORTS
Lidong Liu, Tak Pan Wong, Mario F. Pozza, Kurt Lingenhoehl, Yushan Wang, Morgan Sheng, Yves P. Auberson, and Yu Tian Wang (14 May 2004) Science304 (5673), 1021.
[DOI: 10.1126/science.1096615] |Abstract »|Full Text »|PDF »|Supporting Online Material »
Modular Competition Driven by NMDA Receptor Subtypes in Spike-Timing-Dependent Plasticity.
R. C. Gerkin, P.-M. Lau, D. W. Nauen, Y. T. Wang, and G.-Q. Bi (2007)
J Neurophysiol
97, 2851-2862
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NMDA Receptor Subunits Have Differential Roles in Mediating Excitotoxic Neuronal Death Both In Vitro and In Vivo.
Y. Liu, T. P. Wong, M. Aarts, A. Rooyakkers, L. Liu, T. W. Lai, D. C. Wu, J. Lu, M. Tymianski, A. M. Craig, et al. (2007)
J. Neurosci.
27, 2846-2857
|Abstract »|Full Text »|PDF »
NF-{kappa}B Regulates Spatial Memory Formation and Synaptic Plasticity through Protein Kinase A/CREB Signaling.
B. Kaltschmidt, D. Ndiaye, M. Korte, S. Pothion, L. Arbibe, M. Prullage, J. Pfeiffer, A. Lindecke, V. Staiger, A. Israel, et al. (2006)
Mol. Cell. Biol.
26, 2936-2946
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Role of Distinct NMDA Receptor Subtypes at Central Synapses.