食品科学 ›› 2011, Vol. 32 ›› Issue (7 ): 312-314.doi: 10.7506/spkx1002-6630-201107068

• 营养卫生 • 上一篇    下一篇

大豆异黄酮对AD大鼠海马PS-1表达的影响

方正清,刘长安,汪远金,朱 洁,白 玫   

  1. 安徽中医学院中西医结合研究所
  • 收稿日期:2010-04-23 修回日期:2011-02-14 出版日期:2011-04-15 发布日期:2011-03-30
  • 通讯作者: 方正清 E-mail:chhzhqfang@126.com
  • 基金资助:
    安徽省自然科学基金项目(070413259X)

Effect of Soybean Isoflavone on Presenilin-1 Expression in Hippocampus of Rats with Alzheimer,s Disease

FANG Zheng-qing,LIU Chang-an,WANG Yuan-jin,ZHU Jie,BAI Mei   

  1. Research Institute of Integrated Chinese and Western Medicine, Anhui University of Traditional Chinese Medicine,
    Hefei 230038, China
  • Received:2010-04-23 Revised:2011-02-14 Online:2011-04-15 Published:2011-03-30

摘要: 目的:探讨大豆异黄酮(SIF)对AD大鼠海马PS-1表达的影响。方法:采用β-淀粉样蛋白(Aβ)单侧海马注射建立阿尔茨海默病(AD)大鼠模型,给予相应药物后,利用跳台实验观察AD大鼠学习记忆能力的变化,免疫组化检测AD大鼠海马早老素(PS-1)表达。结果:大豆异黄酮可改善AD大鼠的学习记忆能力(P<0.01),显著性降低AD大鼠PS-1表达(P<0.01)。结论:大豆异黄酮显著降低AD大鼠海马组织PS-1表达,从而改善AD大鼠学习记忆能力。

关键词: 大豆异黄酮, 阿尔茨海默病, β-淀粉样蛋白, PS-1

Abstract: Objective: To explore the effect of soybean isoflavone (SIF) on the expression of presenilin protein-1 (PS-1) in rats with Alzheimer's disease (AD). Methods: AD rat models were established by unilateral hippocampus injection of Aβ. The changes in learning and memory capability of AD rats were measured by step down test, the expression of PS-1 in hippocampus of rats were measured by immunohistochemical method. Results: Soybean isoflavone (SIF) could improve learning and memory capability of AD rats (P < 0.01) by step down test, and significantly decrease the expression of PS-1 (P < 0.01) in hippocampus of AD model group. Conclusion: Soybean isoflavone (SIF) can decrease PS-1 expression and improve learning and memory capability of AD rats.

Key words: soybean isoflavone, AD, β-amyloid peptide, presenilin protein-1

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