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Previous studies demonstrated the role of the dopaminergic receptors in brain sensitivity to ethanol. The present study was designed to assess the relative contribution of the nigrostriatal component to this brain sensitivity. Adult male C57BL mice were given 1-Methyl-4-Phenyl-1,2,3,6-Tetrahydropyridine (MPTP) injections (30 mg/kg daily for 2 consecutive days). The treatment decreased the striatal...
Several lines of evidence suggest that aspects of ethanol drinking are mediated, at least in part, by serotonergic (5-HT) neurotransmitter systems. Ethanol-preferring animals show decreases in serotonin function and receptor densities. In addition, serotonin uptake inhibitors have been shown to decrease ethanol consumption in animal models and in humans. However, the time course of these effects...
Carbamazepine (CBZ) has been used in the treatment of alcohol withdrawal (AW). However, cases of induction of euphoric feelings when mixed with alcohol have been reported. We verified whether CBZ could potentiate ethanol stimulatory effects in animals. Two groups of mice were injected with saline (group I) or 2 g/kg ethanol (group II) IP, for 20 days. On the next day, each group was divided into...
Mice of the heterogeneously bred HS line were concurrently administered intraperitoneal injections of either 95, 75, 60, or 48 mg/kg cocaethylene or 48, 38, or 30 mg/kg cocaethylene in conjunction with the non-lethal dose of 6.0 g/kg (20% w/v) alcohol. Results indicate that alcohol administration significantly potentiated cocaethylene-induced lethality. This observation suggests that alcohol is capable...
Male mice with free access to food, water, and alcohol for 44 weeks were deprived of alcohol for 3 days and then segregated into two groups having (HD) and lacking (LD) the alcohol deprivation-induced elevation in intake. On week 47, the HD and LD groups (divided into subgroups matched for drinking) received either vehicle or piracetam (400 mg/kg) for 10 days. On the last treatment day, alcohol was...
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