TY - JOUR PY - 1987// TI - Behavioral interactions of ethanol and methylxanthines JO - Psychopharmacology A1 - Dar, M. S. A1 - Jones, M. A1 - Close, G. A1 - Mustafa, S. J. A1 - Wooles, W. R. SP - 1 EP - 4 VL - 91 IS - 1 N2 - The effect of the methylxanthines caffeine, theophylline and isobutylmethylxanthine (IBMX) on ethanol-induced ataxia and loss of righting reflex was investigated in three strains of mice. A significant potentiation of ethanol-induced ataxia was produced in all strains of mice at 20, 45 and 75 min after ethanol in mice pretreated with 62.5 mg/kg caffeine and 12.5 mg/kg IBMX. In mice pretreated with 40 mg/kg caffeine potentiation of ethanol-induced ataxia was observed only at 20 min after ethanol. Theophylline pretreatment produced no alteration in ethanol-induced ataxia. The results of methylxanthine pretreatment on ethanol-induced ataxia were similar, regardless of a shorter (10 min) or longer (75 min) pretreatment time. The methylxanthines produced no effect on motor coordination or behavior when administered separately. Although ethanol-induced loss of righting reflex was shortened by theophylline, neither caffeine nor IBMX altered the duration of loss of righting reflex. It is possible that inhibition of adenosine uptake, a known effect of the methylxanthines, may be a more likely explanation for the modulation of the behavioral effects of ethanol.

Language: en

LA - en SN - 0033-3158 UR - http://dx.doi.org/ ID - ref1 ER -