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Cited by 772

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

NMDA receptors are expressed in oligodendrocytes and activated in ischaemia

Open access
Káradóttir, Ragnhildur, Cavelier, Pauline, Bergersen, Linda H., Attwell, David·2005·Nature

Abstract

Glutamate-mediated damage to oligodendrocytes contributes to mental or physical impairment in periventricular leukomalacia (pre- or perinatal white matter injury leading to cerebral palsy), spinal cord injury, multiple sclerosis and stroke. Unlike neurons, white matter oligodendrocytes reportedly lack NMDA (N-methyl-d-aspartate) receptors. It is believed that glutamate damages oligodendrocytes, especially their precursor cells, by acting on calcium-permeable AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid)/kainate receptors alone or by reversing cystine–glutamate exchange and depriving cells of antioxidant protection. Here we show that precursor, immature and mature oligodendrocytes in the white matter of the cerebellum and corpus callosum exhibit NMDA-evoked currents, mediated by receptors that are blocked only weakly by Mg2+ and that may contain NR1, NR2C and NR3 NMDA receptor subunits. NMDA receptors are present in the myelinating processes of oligodendrocytes, where the small intracellular space could lead to a large rise in intracellular ion concentration in response to NMDA receptor activation. Simulating ischaemia led to development of an inward current in oligodendrocytes, which was partly mediated by NMDA receptors. These results point to NMDA receptors of unusual subunit composition as a potential therapeutic target for preventing white matter damage in a variety of diseases.

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Metadata

Authors
Káradóttir, R., Cavelier, P., Bergersen, L. H., & Attwell, D.
Venue
Nature
Published
2005-12
Volume
438
Issue
7071
Pages
1162-1166
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2114091391
Cited by
772
References
33
FWCI
13.02
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: NMDA receptors are expressed in oligodendrocytes and activated in ischaemia. https://app.cochat.ai/papers/10.1038/nature04302
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Káradóttir, R., Cavelier, P., Bergersen, L. H., & Attwell, D. (2005). NMDA receptors are expressed in oligodendrocytes and activated in ischaemia. Nature. https://doi.org/10.1038/nature04302

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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