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The Neuroscientist
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*Degenerative Nerve Diseases
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On the Hypes and Falls in Neuroprotection: Targeting the NMDA Receptor

Carmen Villmann

Institut für Biochemie, Emil-Fischer-Zentrum Universität Erlangen-Nürnberg

Cord-Michael Becker

Institut für Biochemie, Emil-Fischer-Zentrum Universität Erlangen-Nürnberg, cmb{at}biochem.uni-erlangen.de

Activation of the NMDA (N-methyl-D-aspartate) responsive subclass of glutamate receptors is an important mechanism of excitatory synaptic transmission. Moreover, NMDA receptors are widely involved in many forms of synaptic plasticity such as long-term potentiation (LTP) and long-term depression (LTD), which are thought to underlie complex tasks, including learning and memory. Dysfunction of these ligand-gated cation channels has been identified as an underlying molecular mechanism in neurological disorders ranging from acute stroke to chronic neurodegeneration in amyotrophic lateral sclerosis. Excessive glutamate levels have been detected following brain trauma and cerebral ischemia, resulting in an unregulated stimulation of NMDA receptors. These conditions are thought to elicit a cascade of excitation-mediated neuronal damage where massive increases in intracellular calcium concentrations finally trigger neuronal damage and apoptosis. Consistent with the hypothesis of NMDA receptors as essential mediators of excitotoxicity, the different functional domains of these ion channels have been identified as potential targets for neuroprotective agents. Following an initial hype on potential NMDA receptor therapeutics, the authors currently see a period of skepticism that, in reverse, appears to neglect the therapeutic potential of this receptor class. This review attempts a reappraisal of this important class of neurotransmitter receptors, with a focus on NMDA receptor heterogeneity, ligand binding domains, and candidate diseases for a potential neuroprotective therapy. NEUROSCIENTIST 13(6):594—615, 2007. DOI: 10.1177/1073858406296259

Key Words: NMDA receptors • Excitotoxicity • Synaptic plasticity • Neuroprotection • Drug targets • CNS disorders • Neurodegeneration

References

This version was published on December 1, 2007

The Neuroscientist, Vol. 13, No. 6, 594-615 (2007)
DOI: 10.1177/1073858406296259


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This Article
Right arrow Abstract Freely available
Right arrow Free Full Text (Free PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (10)
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Villmann, C.
Right arrow Articles by Becker, C.-M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Villmann, C.
Right arrow Articles by Becker, C.-M.
Right arrowPubmed/NCBI databases
Medline Plus Health Information
*Degenerative Nerve Diseases
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
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