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BMC Complementary Medicine and Therapies
Published in: BMC Complementary Medicine and Therapies 1/2015

Open Access 01-12-2015 | Research article

Cognitive improvement of compound danshen in an Aβ25-35 peptide-induced rat model of Alzheimer’s disease

Authors: Min Liu, Haibiao Guo, Chuyuan Li, Deqin Wang, Jingang Wu, Canmao Wang, Jiangping Xu, Ren-an Qin

Published in: BMC Complementary Medicine and Therapies | Issue 1/2015

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Abstract

Background

Senile dementia mainly includes Alzheimer' s disease (AD) and vascular dementia (VD). AD is a progressive and irreversible neurodegenerative disorder that is accompanied with a great deal of social burden. The aim of this study was to investigate the effect of Compound Danshen (CDS) on learning and memory of alzheimer’s disease (AD) rat model, as well as to explore the possible connection between CDS and the associated molecules of amyloid beta (Aβ).

Methods

Rats were injected with Aβ25–35 peptide intracerebroventricularly and CDS were subsequently administered once daily for 23 days. Rats’ behavior was monitored using Morris water maze and passive avoidance. Real time PCR and Western blotting were used in determining amyloid precursor protein (APP), β-site APP cleaved enzyme-1(BACE1), Presenilin-1 (PS1), Insulin-degrading enzyme (IDE) and neprilysin (NEP) in hippocampus.

Results

The AD model group presented with spatial learning and memory impairments. CDS and donepezil administration significantly ameliorated the Aβ25–35 peptide-induced memory impairment in both Morris water maze (P < 0.05) and passive avoidance task (P < 0.01) compared to the AD model group. Real time PCR results suggested that CDS significantly decreased APP mRNA, PS1 mRNA and increased IDE and NEP mRNA levels. Western blotting analyses showed that CDS decreased the protein expression of APP and PS1 and increased IDE expression.

Conclusion

CDS improved spatial learning and memory by down-regulating APP, PS1 levels and up-regulating IDE. In future, CDS may have significant therapeutic potential in the treatment of AD patients.
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Metadata
Title
Cognitive improvement of compound danshen in an Aβ25-35 peptide-induced rat model of Alzheimer’s disease
Authors
Min Liu
Haibiao Guo
Chuyuan Li
Deqin Wang
Jingang Wu
Canmao Wang
Jiangping Xu
Ren-an Qin
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Complementary Medicine and Therapies / Issue 1/2015
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-015-0906-y

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