The effect of sodium salicylate injection on spatial learning and memory of rat

authors:

avatar Leila Azimi 1 , avatar Ali Pourmotabbed 1 , * , avatar Seyed Ershad Nedaei 1 , avatar Mohammad Rasool Ghadami 1

Dept. of Physiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
Journal of Kermanshah University of Medical Sciences: Vol.15, issue 5; e79015
published online: January 19, 2012
article type: Research Article
received: November 24, 2010
accepted: April 26, 2011

how to cite: Azimi L, Pourmotabbed A, Nedaei S E, Ghadami M R. The effect of sodium salicylate injection on spatial learning and memory of rat. J Kermanshah Univ Med Sci. 2012;15(5):e79015. 

Abstract

Background: Cyclooxygenase (COX) enzyme known as a regulatory factor in synaptic plasticity. It has been reported that synaptic plasticity is one of the mechanisms involved in learning and memory processes. In the current study peripheral injection's effects of sodium salicylate (as a non selective COX inhibitor) on spatial learning and memory have been investigated.
Methods: Four groups of male rats received different doses of sodium salicylate (0, 200, 300, 400 mg/kg; i.p.). Studies were performed using Morris Water Maze (MWM). Spatial learning and memory parameters were subjected to the one- and two-way analyses of variance (ANOVAs) followed by Tukey’s post hoc test.
Results: Data showed that intraperitoneal injection of sodium salicylate had not significant effect on spatial learning parameters (including escape latency and traveled distance to hidden platform in training days); but administration of high dose of the drug (400 mg/kg) significantly increased the percentage of time that animals spent in the target quadrant in probe trial testing.
Conclusion: Peripheral injection of the COX inhibitor has no significant effect on spatial learning; but potentiates spatial memory consolidation using MWM.

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