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  • Title: Effects of the imidazobenzodiazepine RO15-4513 on the stimulant and depressant actions of ethanol on spontaneous locomotor activity.
    Author: Becker HC.
    Journal: Life Sci; 1988; 43(7):643-50. PubMed ID: 2456444.
    Abstract:
    The purpose of this study was to investigate the effects of the imidazobenzodiazepine RO15-4513, a partial inverse agonist at benzodiazepine (BDZ) receptors, on the stimulant and depressant actions of ethanol in mice. For comparative purposes, another BDZ inverse agonist, FG-7142, was examined as well. Neither RO15-4513 nor FG-7142 influenced the low-dose excitatory effects of ethanol on spontaneous locomotor activity. However, both RO15-4513 and FG-7142 significantly antagonized the depressant effects of ethanol, and this antagonism was completely reversed by pretreatment with the BDZ receptor antagonist, RO15-1788. These data suggest that RO15-4513 is capable of antagonizing only some of the behavioral effects of ethanol, and in particular, those responses to ethanol that are mediated by modulation of the GABA/BDZ-chloride channel receptor complex.
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