中国神经再生研究(英文版) ›› 2016, Vol. 11 ›› Issue (9): 1480-1486.doi: 10.4103/1673-5374.191223

• 原著:退行性病与再生 • 上一篇    下一篇

二苯乙烯苷调节突触可塑性:对阿尔茨海默病学习记忆有保护作用

  

  • 收稿日期:2016-08-22 出版日期:2016-09-30 发布日期:2016-09-30
  • 基金资助:
    中国国家自然科学基金项目(81303097, 81373794)

Protective effect of tetrahydroxy stilbene glucoside on learning and memory by regulating synaptic plasticity

Hong-bo Luo1, #, Yun Li1, #, Zun-jing Liu2, Li Cao1, Zhi-qiang Zhang1, Yong Wang1, Xiao-yan Zhang1, Zhao Liu1, Xiang-qun Shi1, *   

  1. 1 Department of Neurology, Lanzhou General Hospital, Lanzhou Military Area Command, Lanzhou, Gansu Province, China 2 Department of Neurology, China-Japan Friendship Hospital, Beijing, China
  • Received:2016-08-22 Online:2016-09-30 Published:2016-09-30
  • Contact: Xiang-qun Shi, Ph.D., shixq_2003@163.com.
  • Supported by:
    This study was supported by the National Natural Science Foundation of China, No. 81303097, 81373794.

摘要:

Aβ损伤突触可塑性是阿尔茨海默病患者学习记忆障碍的病理机制之一。实验假设Aβ对学习记忆能力的损害与Fyn/NR2B表达改变密切相关,故实验设计采用APP695V7171转基因阿尔茨海默病模型小鼠,以中药何首乌中提取的主要活性物质二苯乙烯苷灌胃的方法干预,结果显示小鼠海马CA1区磷酸化NR2B受体和Fyn表达增加,突触损伤明显减轻和恢复,小鼠学习和记忆能力明显改善。说明二苯乙烯苷具有脑保护作用,其具有改善学习记忆能力和治疗阿尔茨海默病的转化临床应用前景。 

orcid: 0000-0002-4567-2244 (Xiang-qun Shi)

关键词: 神经再生, 二苯乙烯苷, 阿尔茨海默病, Aβ, 认知障碍, 学习记忆, 突触可塑性, Fyn/NR2B信号通路, 神经保护

Abstract: Damage to synaptic plasticity induced by neurotoxicity of amyloid-beta is regarded to be one of the pathological mechanisms of learning and memory disabilities in Alzheimer’s disease patients. This study assumed that the damage of amyloid-beta to learning and memory abilities was strongly associated with the changes in the Fyn/N-methyl-D-aspartate receptor 2B (NR2B) expression. An APP695V7171 transgenic mouse model of Alzheimer’s disease was used and treatment with tetrahydroxy-stilbene glucoside was administered intragastrically. Results showed that intragastric administration of tetrahydroxy-stilbene glucoside improved the learning and memory abilities of the transgenic mice through increasing NR2B receptors and Fyn expression. It also reversed parameters for synaptic interface structure of gray type I. These fndings indicate that tetrahydroxy stilbene glucoside has protective effects on the brain, and has prospects for its clinical application to improve the learning and memory abilities and treat Alzheimer’s disease.

Key words: nerve regeneration, tetrahydroxy stilbene glucoside, Alzheimer’s disease, amyloid-beta, cognitive impairment, learning and memory, synaptic plasticity, Fyn/N-methyl-D-aspartate receptor 2B signaling pathway, neuroprotection, neural regeneration