Abstract
The effects were ascertained of two partial inverse agonists at benzodiazepine receptors (beta-CCE and FG 7142) on the incidence of timid (defensive-escape), aggressive, sociable and locomotor activities in both timid and aggressive singly-housed male mice, treated with drugs in paired interactions with untreated non-aggressive males. FG 7142 (5 mg/kg) and beta-CCE (8 mg/kg) increased defenses and escapes without producing other behavioral changes in timid mice. FG 7142 (20 mg/kg) and beta-CCE (1–8 mg/kg) moderately increased defenses and alert postures in aggressive mice and this effect was associated with marked reduction of aggressive behavior. FG 7142 (20 and 80 mg/kg) also decreased walking across cage in aggressive mice. It is concluded that beta-CCE and FG 7142 produced behavioral changes which could be interpreted as “anxiogenic”.
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Šulcová, A., Kršiak, M. & Donát, P. Beta-CCE and FG 7142 increase defensiveness during intraspecies encounters in mice. Psychopharmacology 108, 205–209 (1992). https://doi.org/10.1007/BF02245308
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DOI: https://doi.org/10.1007/BF02245308