Protection against veratridine toxicity in rat cortical cultures: relationship to sodium channel blockade

NEUROPROTECTION against 100μM veratridine-induced cell death and inhibition of voltage-dependent sodium currents by phenytoin, carbamazepine, lidocaine and vinpocetine were studied in rat primary cerebrocortical cultures. Neuroprotective efficacies and sodium channel blocking potencies of these drug...

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Veröffentlicht in:Neuroreport 1995-12, Vol.7 (1), p.89-92
Hauptverfasser: Lakics, Viktor, Molnár, Péter, Erdö, Sándor L
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container_title Neuroreport
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creator Lakics, Viktor
Molnár, Péter
Erdö, Sándor L
description NEUROPROTECTION against 100μM veratridine-induced cell death and inhibition of voltage-dependent sodium currents by phenytoin, carbamazepine, lidocaine and vinpocetine were studied in rat primary cerebrocortical cultures. Neuroprotective efficacies and sodium channel blocking potencies of these drugs failed to show a correlation, suggesting that (i) mechanisms other than sodium channel blockade may be involved in the neuroprotection, and/or (ii) inhibitory efficacy against veratridine-and voltage-activated channels may differ remarkably.
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source MEDLINE; Journals@Ovid Ovid Autoload
subjects Animals
Biological and medical sciences
Carbamazepine - pharmacology
Cell Death - drug effects
Cells, Cultured
Cerebral Cortex - drug effects
Cerebral Cortex - pathology
Lidocaine - pharmacology
Medical sciences
Neuropharmacology
Neuroprotective agent
Neuroprotective Agents - pharmacology
Patch-Clamp Techniques
Pharmacology. Drug treatments
Phenytoin - pharmacology
Rats
Rats, Sprague-Dawley
Sodium Channel Blockers
Veratridine - antagonists & inhibitors
Veratridine - toxicity
Vinca Alkaloids - pharmacology
title Protection against veratridine toxicity in rat cortical cultures: relationship to sodium channel blockade
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