PMID: 2484011Nov 1, 1989Paper

Mouse strain-dependent effect of amantadine on motility and brain biogenic amines

Archives Internationales De Pharmacodynamie Et De Thérapie
F S Messiha

Abstract

The effect of amantadine hydrochloride, injected i.p. in 6 increments of 100 mg/kg each over 30 hr, on mouse motility and whole brain content of selected biogenic amines and major metabolites was studied in 4 strains of mice. These were the albino Sprague-Dawley ICR and BALB/C, the black C57BL/6 and the brown CDF-I mouse strains. Amantadine treatment produced a biphasic effect on mouse motility. The initial dose of amantadine depressed locomotor activity in all mouse strains studied with the BALB/C mice being the most sensitive. Subsequent amantadine treatments produced enhancement of motility from corresponding control in all mouse strains with the BALB/C mice being the least sensitive. The locomotor activity was decreased from corresponding controls in all strains studied, except for the ICR mice, during an overnight drug-free period following the fourth amantadine treatment. Readministration of amantadine, after a drug-free overnight period, increased motility from respective saline control in all strains with exception of the BALB/C mice where suppression of motility occurred. Treatment with amantadine did not alter whole brain dopamine levels but decreased the amounts of 3,4-dihydroxyphenylacetic acid in the BALB/C mice co...Continue Reading

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