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Memory-enhancing effect of <i>Rhodiola rosea</i> L extract on aged mice


Yanjing Cao
Lizhen Liang
Xu Jian
Jiali Wu
Yongxing Yan
Ping Lin
Qiang Chen
Fengming Zheng
Qin Wang
Qian Ren
Zengmei Gou
Yongjun Fan
Yifeng Du

Abstract

Purpose: The memory-enhancing effects of Rhodiola rosea L. extract (RRLE) on normal aged mice were assessed.
Methods: In the open-field test, the effect of RRLE (150 and 300 mg/kg) on mouse locomotive activities was evaluated by investigating the extract’s influence on CAT and AchE activities in the brain tissue of mice.
Results: Compared with aged group, high dose of RRLE reduced the total distance (3212.4 ± 123.1 cm, p < 0.05) significantly, increased catalase (CAT) activity (101.4 ± 12.2 U/mg pro, p < 0.05), and inhibited acetyl cholinesterase (AChE) activity (0.94 ± 0.12 U/mg pro, p < 0.05) in the brain tissue of aged mice.
Conclusion: The results show that RRLE improves the memory functions of aged mice probably by increasing CAT activity while decreasing AChE activity.


Keywords: Rhodiola rosea, Memory function, Catalase, Acetyl cholinesterase, Open-field test


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eISSN: 1596-9827
print ISSN: 1596-5996