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Evidence-Based Complementary and Alternative Medicine
Volume 2015, Article ID 128394, 9 pages
http://dx.doi.org/10.1155/2015/128394
Research Article

The Synergistic Beneficial Effects of Ginkgo Flavonoid and Coriolus versicolor Polysaccharide for Memory Improvements in a Mouse Model of Dementia

1College of Chemical Engineering, Nanjing Forestry University, 159 Long Pan Road, Nanjing 210037, China
2Jiangsu Key Laboratory of Biomass Based Green Fuels and Chemicals, 159 Long Pan Road, Nanjing 210037, China
3Department of Pharmacology, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
4Jiangsu Kanion Pharmaceutical Co., Ltd., 58 Haichang South Road, Lianyungang 222001, China

Received 24 July 2014; Revised 28 September 2014; Accepted 13 October 2014

Academic Editor: Paul Siu-Po Ip

Copyright © 2015 Xianying Fang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study reports the combination of Ginkgo flavonoid (GF) and Coriolus versicolor polysaccharide (CVP) in the prevention and treatment of a mouse model of Alzheimer’s disease (AD). GF is a traditional health product, and CVP is the main active ingredient of the medicinal fungus Coriolus versicolor. The Morris water maze test, the Y maze, and the step-through test showed that the combinational use of CVP and GF synergistically improved memory in a mouse model of AD. Based on H&E staining analysis, the combination of CVP and GF decreased the severity of the pathological findings in the brain. Given that the expression of IL-1β, IL-6, and TNF-α was downregulated, the inflammation response in AD mice was considered to be inhibited. The downregulation of GFAP further demonstrated that inflammation was reduced in the brain of AD mice following treatment. Moreover, the expression levels of superoxide dismutase (SOD) and catalase (CAT) were elevated in the brains of treated mice, indicating that oxidation levels were reduced upon the combination treatment. Our results provide new insights into the efficient utilization of traditional medicine for preventing dementia.