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Evaluation of the Effect of Cariprazine on Memory and Cognition in Experimental Rodent Models

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  • Hristina Ivanova Zlatanova

    (Department of Pharmacology and Clinical Pharmacology, Faculty of Medicine, Medical University Plovdiv, 4002 Plovdiv, Bulgaria)

  • Maria Todorova Georgieva-Kotetarova

    (Department of Pharmacology and Clinical Pharmacology, Faculty of Medicine, Medical University Plovdiv, 4002 Plovdiv, Bulgaria)

  • Natalia Borisova Vilmosh

    (Department of Pharmacology and Clinical Pharmacology, Faculty of Medicine, Medical University Plovdiv, 4002 Plovdiv, Bulgaria)

  • Ilin Kostadinov Kandilarov

    (Department of Pharmacology and Clinical Pharmacology, Faculty of Medicine, Medical University Plovdiv, 4002 Plovdiv, Bulgaria)

Abstract

The main symptoms of schizophrenia are categorized as positive, negative, and cognitive. Cognitive impairments do not generally respond to antipsychotics. Cariprazine is a novel antipsychotic conceived with the idea that high affinity for D3 receptors may elicit a favorable response in the management of cognitive deficits. We evaluated the pro-cognitive properties of 14-day long pre-treatment with cariprazine (0.25, 0.5, and 1 mg/kg b.w. intraperitoneally) in experimental rodent models with scopolamine-induced memory impairment employing novel object recognition test (NORT), T-maze, Y-maze, and passive avoidance tasks (step-through and step-down). Statistical analysis was performed with One Way ANOVA. In NORT cariprazine increased the recognition index. In T-maze and Y-maze cariprazine increased the working memory index as well as the percentage of spontaneous alternation. Cariprazine improved learning and memory in both short-term and long-term memory retention tests in step-down and step-through tasks. Cariprazine improves learning, recognition, and spatial memory in rats with scopolamine-induced memory impairment. Cariprazine’s beneficial effect on cognition is likely due to its affinity for D3 receptors, as well as agonism at 5-HT1A receptors. Most probably, the cognitive-enhancing properties of cariprazine are the result of integrated modulation in the amygdala, hippocampus, and prefrontal cortex.

Suggested Citation

  • Hristina Ivanova Zlatanova & Maria Todorova Georgieva-Kotetarova & Natalia Borisova Vilmosh & Ilin Kostadinov Kandilarov, 2022. "Evaluation of the Effect of Cariprazine on Memory and Cognition in Experimental Rodent Models," IJERPH, MDPI, vol. 19(22), pages 1-11, November.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:22:p:14748-:d:968162
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