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The amino acid L-glutamate is a major excitatory neurotransmitter that is involved in many CNS functions, including learning, memory, long-term potentiation, and synaptic plasticity. Acute exposures to ethanol (50 to 200 mM) have been shown to inhibit NMDA receptor responses, whereas chronic exposure to ethanol leads to adaptive supersensitivity thought to(More)
Glutamate mediated excitotoxicity is a major area of experimentation due to the potential for prevention of morbidity and brain damage associated with stroke and brain trauma. We have developed a simple rapid method to study excitotoxicity in primary cortical neuronal cultures using propidium iodide (PI) fluorescence read by a multiwell fluorescence(More)
Excessive oxidative radical production has been implicated in a variety of neurodegerative processes including NMDA (N-methyl-D-aspartate) mediated excitotoxicity. To determine the relationship of oxidation to NMDA-receptor mediated neuronal death, we exposed rat primary cortical neuronal cultures to ferrous sulfate and the fluorescent dyes(More)
Excessive oxidative radical formation has been implicated in a number of neurodegenerative processes, including glutamate-N-methyl-D-aspartate (NMDA)-mediated excitotoxicity. Previous studies have suggested that the formation of reactive oxygen species (ROS) during NMDA exposure is involved in triggering the excitotoxic cascade. Chronic exposure of primary(More)
The recognition of Rand S-configured guest molecules by a chiral host embodies the process of molecular recognition. The binding of one enantiomeric form of a potential guest is rare, however (Hong, 1991). Enantiotopically selective reactions have been demonstrated (Matsuki, 1993), but the identification and study of host/guest complexes involved in these(More)
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