中国神经再生研究(英文版) ›› 2015, Vol. 10 ›› Issue (5): 778-785.doi: 10.4103/1673-5374.156981

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

中药有效组分复方制剂:可有效缓解铁超载致中枢神经系统的功能衰退

  

  • 收稿日期:2015-04-18 出版日期:2015-05-15 发布日期:2015-05-15
  • 基金资助:

    国家自然科学基金,NO:81273983;河北省自然科学基金,NO:C2010001471;河北省高等学校科学技术研究青年基金,NO:Q2012036;河北省食品药品监督管理局资助项目(No PT2014053)

Effective components of Chinese herbs reduce central nervous system function decline induced by iron overload

Xian-hui Dong 1, Jiang-tao Bai 1, Wei-na Kong 2, Xiao-ping He 3, Peng Yan 1, Tie-mei Shao 2, Wen-guo Yu 2, Xi-qing Chai 2, Yan-hua Wu 1, Cong Liu 1   

  1. 1 Chengde Medical University, Chengde, Hebei Province, China
    2 Hebei Chemical and Pharmaceutical Vocational and Technical College, Shijiazhuang, Hebei Province, China
    3 The 266 Hospital of Chinese PLA, Chengde, Hebei Province, China
  • Received:2015-04-18 Online:2015-05-15 Published:2015-05-15
  • Contact: Xi-qing Chai, M.D., xqchai@163.com
  • Supported by:

    This research was supported by the National Natural Science Foundation of China, No. 81273983; the Natural Science Foundation of Hebei Province in China, No. C2010001471; the Scientific and Technological Research Youth Foundation of Colleges and Universities in Hebei Province of China, No. Q2012036; the Hebei Provincial Food and Drug Administration in China, No. PT2014053.

摘要:

研究发现阿尔茨海默病患者脑异常增高的铁启动机体级联放大机制,最终导致神经元死亡,在阿尔茨海默病的发生发展中发挥重要作用。实验假设从中药淫羊藿、黄芪、葛根提取的有效组分可能缓解阿尔茨海默病患者脑组织铁代谢相关蛋白表达失控。我们以APPswe/PS1ΔE9双转基阿尔茨海默病模型小鼠为实验对象,发现灌胃淫羊藿、黄芪、葛根有效组分复方制剂可以有效的改善阿尔茨海默病小鼠大脑皮质神经元水肿等病理变化,使阿尔茨海默病小鼠大脑皮质神经元数目增加,下调阿尔茨海默病小鼠大脑皮质二价金属离子转运蛋白1的表达,上调膜铁转运蛋白1的表达,从而抑制阿尔茨海默病小鼠脑铁超载,缓解铁超载带来的中枢神经系统功能衰退,为开发治疗阿尔茨海默病的新药提供新的思路和策略。

关键词: 神经再生, 神经退行性疾病, 阿尔茨海默病, 转基因动物模型, 小鼠, 淫羊藿, 黄芪, 葛根, 二价金属离子转运蛋白1, 膜铁转运蛋白1

Abstract:

Abnormally increased levels of iron in the brain trigger cascade amplification in Alzheimer’s disease patients, resulting in neuronal death. This study investigated whether components extracted from the Chinese herbs epimedium herb, milkvetch root and kudzuvine root could relieve the abnormal expression of iron metabolism-related protein in Alzheimer’s disease patients. An APPswe/PS1ΔE9 double transgenic mouse model of Alzheimer’s disease was used. The intragastric administration of compounds from epimedium herb, milkvetch root and kudzuvine root improved pathological alterations such as neuronal edema, increased the number of neurons, downregulated divalent metal transporter 1 expression, upregulated ferroportin 1 expression, and inhibited iron overload in the cerebral cortex of mice with Alzheimer’s disease. These compounds reduced iron overload-induced impairment of the central nervous system, indicating a new strategy for developing novel drugs for the treatment of Alzheimer’s disease.

Key words: nerve regeneration, neurodegenerative diseases, Alzheimer’s disease, transgenic animal models, mice, epimedium herb, milkvetch root, kudzuvine root, divalent metal transporter 1, ferroportin 1, neural regeneration