Ondansetron amelioration of scopolamine induced cognitive deficits in three-panel runway apparatus in rats

Abstract

Effect of ondansetron (5-HT₃-receptor antagonist) was studied on the working memory deficits induced by scopolamine, a muscarinic receptor antagonist in rats using a three-panel run way apparatus. Varying doses of scopolamine (0. 1-0.56-mg/kg, ip) were administered alone or in combination with ondensetron (0.01-1.0 mg/kg, ip) and memory errors and latency period of the session were recorded on a three-panel runway apparatus. Treatment with scopolamine (0.56 mg/kg) produced working memory deficits in rats. Treatment with ondansetron (1.0 mg/kg) significantly reduced the scopolamine-induced working memory deficits.