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Influx of Ca(2+) ions through alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptors contributes to neuronal damage in stroke, epilepsy, and neurodegenerative disorders such as ALS. The Ca(2+) permeability of AMPA receptors is largely determined by the glutamate receptor 2 (GluR2) subunit, receptors lacking GluR2 being permeable to Ca(2+)(More)
Influx of Ca(2+) ions through the α-amino-3-hydroxy-5-methylisoxazole propionic acid (AMPA) receptors is toxic to neurons and contributes to motor neuron degeneration observed in amyotrophic lateral sclerosis (ALS). The Ca(2+) permeability of the AMPA receptor depends on its subunit composition. If the GluR2 subunit is present in the receptor complex, the(More)
A colony of rhesus monkeys made vitamin B12 deficient through dietary deprivation has been maintained since 1970. Deficient animals regularly develop neurologic lesions histologically, ultrastructurally, and topographically indistinguishable from those of human subacute combined degeneration but have failed to develop overt hematologic changes. No(More)
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