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Pharmacol Rep. 2013;65(1):30-43.

Influence of aripiprazole and olanzapine on behavioral dysfunctions of adolescent rats exposed to stress in perinatal period.

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  • 1Department of Pharmacoeconomics and Social Pharmacy, Poznan University of Medical Sciences, Dąbrowskiego 79, PL 60-529 Poznań, Poland. rataj84@ump.edu.pl



Schizophrenia is a group of mental disorders of unclear origin, affecting around 1% of global population, most commonly young people. Of various treatment methods, pharmacotherapy using atypical neuroleptics such as aripiprazole (ARI) and olanzapine (OLA) seems to be the most effective. The aim of this paper was to show that prenatal stress causes impairment of cognitive functions in adolescent rats.


The effect of chronic stress used in pregnant rats and the use of drugs such as ARI (1.5 mg/kg) and OLA (0.5 mg/kg) were studied in the Morris Water Maze (spatial memory) and Porsolt test (antidepressant effect).


The behavioral tests showed that ARI improved spatial memory both in the non-stressed control group (NSCG) (after single and chronic treatment) and in the prenatally stressed group (PSG) (only in 14 and 21 days of treatment). An antidepressant effect was observed in the NSCG (only in 1 and 7 days) and the PSG (after single and chronic administration). OLA also showed memory improvement in the NSCG (chronic treatment - 14 and 21 days) and the PSG (all days of treatment) rats, but the antidepressant effect was noted only in single administration in both study groups (NSCG and PSG).


Results suggest that ARI and OLA may prove effective in treating both schizophrenia and depression and may improve disturbed memory functions observed in these diseases.

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