天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (12): 2011-2016.doi: 10.16333/j.1001-6880.2016.12.028

• 开发研究 • 上一篇    下一篇

非瑟酮对Aβ42诱导AD痴呆模型大鼠的保护作用及其机制研究

武雪玲1,李筱筱1,贾世亮1,张静1,戴雪伶2,孙雅煊1,2*   

  1. 1 北京联合大学应用文理学院;2北京联合大学生物活性物质与功能食品北京市重点实验室,北京 100191
  • 出版日期:2016-12-31 发布日期:2017-03-31

Protective Effect and Mechanism of Fisetin on Aβ42-induced Rat Model of Alzheimer's Disease

WU Xue-ling1,LI Xiao-xiao1,JIA Shi-liang1,ZHANG Jing1,DAI Xue-ling2,SUN Ya-xuan1,2*   

  1. 1 Beijing Key Laboratory of Bioactive Substances and Functional Food,Beijing Union University;2Research Institute of Science and Technology of Functional Food,Beijing Union University,Beijing 100191,China
  • Online:2016-12-31 Published:2017-03-31

摘要: 采用双侧海马CA1区注射Aβ42构建AD动物模型,通过穿梭箱被动回避记录行为学数据;以大鼠脑组织中的GSH、MDA和PC含量作为评价指标,观察非瑟酮对阿尔茨海默病(AD)模型大鼠记忆力以及体内抗氧化活性的影响;以脾脏、胸腺和肝脏指数以及GFAP的表达初步评估非瑟酮对AD模型大鼠的抗炎、抗衰老作用。结果表明,模型组动物的记忆能力显著下降,而非瑟酮组可改善AD模型大鼠的记忆损伤;同时,发现非瑟酮组能显著提高AD大鼠脑组织中的GSH含量,降低MDA和PC含量水平;增加大鼠的脾脏、胸腺和肝脏指数,并降低GFAP的表达水平,且灌胃剂量为100 mg/kg的非瑟酮组效果最佳。综合上述结果可知,非瑟酮对Aβ42诱导AD痴呆大鼠具有较好的保护作用,其机制可能是非瑟酮抑制脑组织氧化损伤并抑制星型胶质细胞的活化与增生进而减少神经炎症的发生。

关键词: 非瑟酮, A&beta, 42, 阿尔茨海默病, 保护作用

Abstract: Rats were administered bilaterally in hippocampal CA1 area by injecting Aβ42 to produce an animal model of AD,where animal behaviors were detected by the passive-avoidance test.The contents of GSH,MDA,and PC in brain tissues were extensively evaluated to investigate the effect of fisetin on antioxidant activity and memory function.In addition,the spleen index,thymus index,liver index and the expression of GFAP were used to preliminarily assess the anti-inflammatory and anti-aging effect of fisetin on AD model rats.The results showed that the memory function was significantly reduced in model group of rats,and fisetin can improve memory impairment of AD model rats.Moreover,compared with the model group,the spleen index,thymus index,liver index and the content of GSH in brain tissues were significantly enhanced whereas the expression of GFAP,MDA and PC contents were decreased,especially in the group that received 100 mg/kg fisetin.Thus fisetin might be a potential agent for treatment of Alzheimer’s disease via inhibiting oxidative damage and activation and proliferation of astrocyte reducing and further reducing nerve inflammation.

Key words: fisetin, A&beta, 42, Alzheimer's disease, protective effect

中图分类号: 

R749.1