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  • Title: Ethanol and benzodiazepines. The influence of CGS 8216 on the ethanol-induced hypothermia and motor incoordination in mice and rats.
    Author: Fidecka S, Langwínski R.
    Journal: J Physiol Pharmacol; 1995 Dec; 46(4):429-37. PubMed ID: 8770787.
    Abstract:
    Ethanol has pharmacological profile very similar to benzodiazepines which facilitate GABA-ergic neurotransmission. In addition, a lot of ethanol-induced effects are partially antagonized by Ro 15-4513, a benzodiazepine inverse agonist. In our study, the influence of CGS 8216, another benzodiazepine inverse agonist, on the hypothermic (3.5 g/kg in mice, 3.0 g/kg in rats) and disturbing the motor coordination (3.2 g/kg in mice, 2.5 g/kg in rats, aerial righting reflex) effects of ethanol was investigated. The hypothermic effects of ethanol were antagonized in mice, and significantly attenuated in rats by CGS 8216 (10 and 20 mg/kg). Ethanol-induced motor incoordination was significantly diminished by 10 and 20 mg/kg of CGS 8216 in mice but not in rats. These data suggest that some effects of ethanol may result from the intensification of benzodiazepine/GABA-ergic activity. In addition, they let us presume that the activity of CGS 8216 is connected with a benzodiazepine receptor named BZ-1 or omega 1. The results indicate the need of further work on the benzodiazepine inverse agonists for use in treatment of ethanol poisoning.
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