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The Neuroscientist
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The Dichotomy of NMDA Receptor Signaling

Sofia Papadia

Centre for Neuroscience Research, University of Edinburgh, Edinburgh, United Kingdom

Giles E. Hardingham

Centre for Neuroscience Research, University of Edinburgh, Edinburgh, United Kingdom, Giles.Hardingham{at}ed.ac.uk

The N-methyl-D-aspartate (NMDA) subtype of ionotropic glutamate receptors plays a Jekyll and Hyde role in the mammalian central nervous system. In pathological scenarios such as ischemia, Ca2+ influx through the NMDA receptor is a key mediator of cell death. However, physiological levels of NMDA-receptor activity can promote neuronal survival and resistance to trauma and play important roles in synaptic plasticity and transmission. This dichotomy may explain the poor tolerance and efficacy of NMDA-receptor antagonists in clinical trials for excitotoxic trauma. There is a growing understanding of the signaling events that mediate the opposing effects of NMDA-receptor activity and the factors that determine whether an episode of NMDA-receptor activity will promote survival or death. This knowledge may lead to therapeutic strategies that enable the selective blockade of prodeath signaling cassettes while sparing physiological signaling to survival and plasticity. NEUROSCIENTIST 13(6):572—579, 2007. DOI: 10.1177/1073858407305833

Key Words: Apoptosis • Necrosis • Neuroprotection • Stroke • NMDA receptor • Extrasynaptic • Synaptic activity • CREB • Akt • Calcium

References

The Neuroscientist, Vol. 13, No. 6, 572-579 (2007)
DOI: 10.1177/10738584070130060401


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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 (17)
Right arrow Citing Articles via Google Scholar
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Papadia, S.
Right arrow Articles by Hardingham, G. E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Papadia, S.
Right arrow Articles by Hardingham, G. E.
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