| RESEARCH ARTICLE
|Year : 2013 | Volume
| Issue : 4 | Page : 348-353
Antidepressant-like effect of novel 5-HT3 receptor antagonist N-n-butyl-3-ethoxyquinoxalin-2-carboxamide (6p): An approach using rodent behavioral antidepressant tests
Shvetank Bhatt, Radhakrishnan Mahesh, Thangaraj Devadoss, Ankur Kumar Jindal
Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan, India
Objective: The present study was designed to investigate the antidepressant potential of N-n-butyl-3-ethoxyquinoxalin-2-carboxamide ( 6p ), a novel 5-HT 3 receptor antagonist in rodent behavioral models of depression.
Materials and Methods: The compound 6p was examined in various behavioral models like forced swim test (FST), tail suspension test (TST), mechanistic models [5-hydroxytryptophan (5-HTP)-induced head twitch and reserpine-induced hypothermia (RIH)], and in chronic surgery model-olfactory bulbectomy in rats.
Results: Compound 6p (1, 2, and 4 mg/kg, i.p.) exhibited antidepressant-like effect in FST and TST after acute treatment without having an effect on baseline locomotor activity. Moreover, 6p (2 mg/kg, i.p.), potentiated the 5-HTP-induced head twitch responses in mice and inhibited the RIH in rats. Chronic treatment (14 days) with 6p (1 and 2 mg/kg, p.o.) and paroxetine (10 mg/kg, p.o.) in rats significantly reversed the behavioral anomalies induced by bilateral olfactory bulbectomy using open field exploration.
Conclusion: The preliminary studies reveal that compound 6p exhibits antidepressant-like effect in behavioral rodent models of depression.
Department of Pharmacy, Birla Institute of Technology and Science, Pilani, Rajasthan
Source of Support: Authors thank the University Grants Commission (UGC), India, Birla Institute of Technology and Science (BITS), Pilani, India, and SAIF, Panjab University, Chandigarh, India, for providing financial support, laboratory and analytical facilities, respectively, Conflict of Interest: None
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