Abstract
The dose-dependent effect of acute zimeldine and alaproclate treatment upon the acquisition of two-way and one-way active avoidance in the rat was studied in a single-session and in a repeated-sessions design. Zimeldine (5–20 mg/kg, IP), but not alaproclate, caused disruptions of two-way avoidance acquisition. Acquisition deficits were also caused by citalopram and fluoxetine but not the other antidepressant drugs tested. Zimeldine, but not alaproclate or desipramine, caused a slight but non-significant impairment of one-way active avoidance; neither zimeldine nor alaproclate produced any effects upon fear conditioning and retention testing. The long-term action of p-chloroamphetamine (2×10 mg/kg) antagonised the acute zimeldine effect totally, and chronic treatment with zimeldine (15 days, 1×50 μmol/kg) and chlorimipramine (15 days, 2×10 μmol/kg) also caused some partial blockade of the two-way avoidance deficit. These data seem to suggest some involvement of serotonin (5-HT) in the observed disruptions of two-way active avoidance caused by acute zimeldine treatment.
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Archer, T., Ögren, SO., Johansson, G. et al. The effect of acute zimeldine and alaproclate administration on the acquisition of two-way active avoidance: Comparison with other antidepressant agents, test of selectivity and sub-chronic studies. Psychopharmacology 84, 188–195 (1984). https://doi.org/10.1007/BF00427444
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DOI: https://doi.org/10.1007/BF00427444