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The effect of hydroalcoholic extract of Cyperus rotundus L. rhizome on acute stress-induced memory retrieval impairment in adult male mice
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Dariush Taheri *    , Lotfollah Khajehpour , Seyyednejad Mansour |
| Department of Biology, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran |
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Abstract: (626 Views) |
Background and Aim: There are numerous reports that different models of stress can cause memory loss. On the other hand, investigations determined that Cyperus rotundus rhizome can effectively improve memory and enhance recall. In the present study we assessed the possible improving effects of hydroalcoholic extract of Cyperus rotundus rhizomes on stress-induced memory retrieval impairment.
Methods: Adult male mice were divided to two main groups, stress and non-stress, and each of these groups was divided into two subgroups: saline-receiving control and treated with Cyperus rutundus extract. First, the mice received the material by daily gavage for 7 or 21 days. One day after the last gavage, the animals were trained by step-through method. 24 hours after the training, they were exposed to elevated platform stress before the test. Step-through latency (STL) to enter dark chamber and spent time in dark chamber (STD) were recorded as measures of passive avoidance memory retrieval.
Results: Pre-test stress significantly reduced STL and increased STD. Pre-training gavage of Cyperus rotundus extract reversed the STL and also significantly reduced the STD.
Conclusion: It seems that treatment with hydroalcoholic extract of Cyperus rotundus rhizomes improves ability to retrieve information from long-term memory and ameliorates stress-induced memory impairment in a time-dependent manner.
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| Keywords: Stress, Cyperus rotundus, Passive avoidance memory, Mice |
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Full-Text [PDF 1248 kb]
(370 Downloads)
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Type of Study: Original Research |
Subject:
Neuroscience
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