Abstract |
Disorders of neuronal migration in cerebral cortex are associated with neurological impairments, including mental retardation and epilepsy. Their causes and pathophysiology remain largely unknown, however. In patients with Zellweger disease, a lethal panperoxisomal disorder, and in mice lacking the Pxr1 import receptor for peroxisomal matrix proteins, the absence of peroxisomes leads to abnormal neuronal migration. Analysis of Pxr1-/- mice revealed that the migration defect was caused by altered N-methyl-D-aspartate ( NMDA) glutamate receptor-mediated calcium mobilization. This NMDA receptor dysfunction was linked to a deficit in platelet-activating factor, a phenomenon related to peroxisome impairment. These findings confirm NMDA receptor involvement in neuronal migration and suggest a link between peroxisome metabolism and NMDA receptor efficacy.
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Authors | P Gressens, M Baes, P Leroux, A Lombet, P Van Veldhoven, A Janssen, J Vamecq, S Marret, P Evrard |
Journal | Annals of neurology
(Ann Neurol)
Vol. 48
Issue 3
Pg. 336-43
(Sep 2000)
ISSN: 0364-5134 [Print] United States |
PMID | 10976640
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Receptors, GABA
- Receptors, Glutamate
- Receptors, N-Methyl-D-Aspartate
- Dizocilpine Maleate
- Calcium
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Topics |
- Animals
- Autoradiography
- Calcium
(metabolism)
- Cell Movement
(physiology)
- Dizocilpine Maleate
(pharmacology)
- Female
- Male
- Mice
- Neurons
(metabolism, physiology)
- Receptors, GABA
(metabolism)
- Receptors, Glutamate
(physiology)
- Receptors, N-Methyl-D-Aspartate
(metabolism)
- Zellweger Syndrome
(metabolism, physiopathology)
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