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The Effect of Nicotine on Antidepressant and Anxiolytic Responses Induced by Citalopram and Citicoline in Mice Publisher Pubmed



Khakpai F1 ; Zarrindast MR2, 3
Authors
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Authors Affiliations
  1. 1. Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
  2. 2. Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran

Source: Acta Neurobiologiae Experimentalis Published:2023


Abstract

The effect of nicotine on both anxiety and depression has been broadly studied. Moreover, citalopram and citicoline play a role in the modulation of anxiety and depression. This study was designed to examine the effects of nicotine on the antidepressant and anxiolytic responses induced by citalopram and citicoline in mice. Anxiety- and depression-related behaviors were assessed with the elevated plus maze and forced swim test, respectively. The results showed that subcutaneous administration of nicotine decreased open-arm time (OAT) and open-arm entries (OAE) but increased immobility time, suggesting anxiogenic-like and depressive-like effects. Intraperitoneal administration of citalopram increased OAT but decreased immobility time, indicating that citalopram induced anxiolytic-like and antidepressant-like responses. Additionally, an injection of citicoline increased OAE but decreased immobility time, revealing anxiolytic-like and antidepressant-like effects. Interestingly, the subthreshold dose of nicotine potentiated the citalopram and citicoline effects on OAT and immobility time, which revealed anxiolytic-like and antidepressant-like behaviors. Locomotor activity was not significantly changed by any doses of the drugs. In conclusion, these findings suggest that interactions between nicotine and citalopram or citicoline occur upon induction of anxiolytic and antidepressant responses in mice. © 2023, Nencki Institute of Experimental Biology. All rights reserved.
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