Jpn. J. Pharmacol. 73 (1), 97-100 (1997)
Protective Effect of Ifenprodil against Glucose Deprivation-Induced
Damage in Cultured Rat Hippocampal Neurons
Mei-Yu Geng, Hiroshi Saito and Nobuyoshi Nishiyama (*)
Department of Chemical Pharmacology, Faculty of Pharmaceutical Sciences,
The University of Tokyo, Bunkyo-ku, Tokyo 113, Japan
(*) To whom correspondence should be addressed.
Abstract: When hippocampal cultures were deprived of glucose,
massive release of lactate dehydrogenase (LDH), an indicator of neuronal
death, occurred 24 hr following the onset of hypoglycemic insult via N-methyl-D-aspartate
(NMDA)-type glutamate receptor activation. Ifenprodil (0.1 and 1 M) significantly
inhibited LDH release, which was antagonized by polyamines. These results
suggest that ifenprodil protects neurons from glucose deprivation by antagonizing
the effects of glutamate via selective interaction with polyamine modulatory
sites on the NMDA receptor complex. The observed phenomenon further indicate
that ifenprodil might be used prophylactically against neuronal death induced
by excitotoxic disorders.
Keywords: Ifenprodil, Hippocampal cultured neuron, Excitotoxic disorder
Copyright© The Japanese Pharmacological Society 1997
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