Effects of dehydroepiandrosterone sulfate (DHEAS, 30 mg/kg, i.p., 4 and 28 hours after the injection) were studied in CBA/Lac male mice different in the level of anxiety resulting from repeated social victories (winners) or social defeats (losers) in 10 daily agonistic confrontations. The losers demonstrated high level of anxiety estimated by the "partition" test. The DHEAS and saline injections had different effects on winners, losers, and intact mice. DHEAS prevented the development of anxiety in losers 28 hours after the injection. In these experimental conditions DHEAS exerted no effect on winners. It was concluded that the DHEAS effect depends on the psychoemotional state of an animal. The anxiolytic effect of the exogenous DHEAS may be also characteristic of the endogenous hormone secreted by the adrenal glands and in the central nervous system.
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