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Brain catecholamines during ethanol administration, effect of naloxone on brain dopamine and norepinephrine responses
Pharmacological Research Communications
|December 1, 1985
Abstract:
The variations in brain dopamine (DA) and norepinephrine (NE) levels after ethanol administration have been studied in rats. Acute ethanol administration significantly decreased brain DA and NE levels. After chronic ethanol intake no changes were observed in brain catecholamines. Ethanol withdrawal induced significant decreases in DA and NE concentrations in the brain. The administration of naloxone, antagonist of opiate receptors, blocked the effects of ethanol deprivation on brain catecholamines. These data suggest that endogenous opioids may be involved in the ethanol-withdrawal syndrome.