Advanced Biomedical Research

Effect of Royal Jelly on spatial learning and memory in rat model of streptozotocin-induced sporadic Alzheimer's disease

Authors

1 Applied Physiology Research Center, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

2 Department of Physiology, School of Medicine and Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran

3 Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Iran

4 Department of Basic Sciences, Isfahan Payame Noor University, Isfahan, Iran

Abstract

Background: It has been recently demonstrated that Royal jelly (RJ) has a beneficial role on neural functions. Alzheimer's disease (AD) is associated with impairments of learning and memory. Therefore, the present study was designed to examine the effect of RJ on spatial learning and memory in rats after intracerebroventricular injection of streptozotocin (icv-STZ).
Materials and Methods: Rats were infused bilaterally with an icv injection of STZ, while sham rats received vehicle only. The rats were feed with RJ-contained food (3% w/w) (lyophilized RJ mixed with powdered regular food) or regular food for 10 days. Then spatial learning and memory was tested in the rats by Morris water maze test.
Results: Results showed that in icv-STZ group latency and path length were increased as compared to sham group, also icv-STZ rats less remembered the target quadrant that previously the platform was located; however, these were protected significantly in STZ group that received RJ-containing food.
Conclusions: Our findings support the potential neuroprotective role of RJ and its helpful effects in AD.

Keywords

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Advanced Biomedical Research
Volume 2012, July
July 2012
Pages 1-6