中国神经再生研究(英文版) ›› 2018, Vol. 13 ›› Issue (4): 731-736.doi: 10.4103/1673-5374.230302

• 原著:退行性病与再生 • 上一篇    下一篇

淫羊藿苷、黄芪多糖和葛根素联合治疗可减轻阿尔茨海默病小鼠大脑皮质脑铁过载

  

  • 收稿日期:2018-01-17 出版日期:2018-04-15 发布日期:2018-04-15
  • 基金资助:

     

    中国国家自然科学基金项目(81273983

Compound of icariin, astragalus, and puerarin mitigates iron overload in the cerebral cortex of Alzheimer’s disease mice

Yu Zhang1, Wei-Na Kong2, Xi-Qing Chai1, 2   

  1. 1 Department of Neurology, the First Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
    2 Hebei Chemical and Pharmaceutical College, Shijiazhuang, Hebei Province, China
  • Received:2018-01-17 Online:2018-04-15 Published:2018-04-15
  • Contact: Xi-Qing Chai, M.D.,xqchai@163.com.
  • Supported by:

    This study was supported by the National Natural Science Foundation of China, No. 81273983

摘要:

研究显示,铁稳态紊乱可能参与阿尔茨海默病的病理发展。既往研究显示淫羊藿苷、黄芪多糖、葛根素能抑制AD小鼠大脑皮质铁过载,改善空间学习记忆障碍,但其机制尚不明确。实验按照120、80、80mg/kg剂量同时给予APPswe/PS1ΔE9转基因小鼠灌胃淫羊藿苷、黄芪苷和葛根素,每天1次,连续3个月。以火焰原子吸收光谱分析大脑皮质中铁含量;以ELISA方法检测大脑皮质中白细胞介素1β、白细胞介素6和肿瘤坏死因子α水平;以比色法检测大脑皮质中谷胱甘肽过氧化物酶和超氧化物歧化酶活性及丙二醛含量。结果显示,经治疗后小鼠大脑皮质中铁含量和丙二醛含量降低,超氧化物歧化酶和谷胱甘肽过氧化物酶活性增加,炎症标志物白细胞介素1β、白细胞介素6和肿瘤坏死因子α水平降低。提示淫羊藿、黄芪及葛根提取物组合可能通过减轻氧化应激和炎症反应,减轻脑铁过载。

orcid:0000-0002-3507-7118(Xi-Qing Chai)

关键词: 神经再生, 阿尔茨海默病, 铁过载, 淫羊藿, 黄芪, 葛根, 氧化应激, 炎症反应

Abstract:

Increasing evidence indicates that disruption of normal iron homeostasis may contribute to pathological development of Alzheimer’s disease. Icariin, astragalus, and puerarin have been shown to suppress iron overload in the cerebral cortex and improve spatial learning and memory disorders in Alzheimer’s disease mice, although the underlying mechanism remains unclear. In the present study, APPswe/PS1ΔE9 transgenic mice were administered icariin, astragalus, and puerarin (120, 80, and 80 mg/kg, respectively, once a day, for 3 months). Iron levels were detected by flame atomic absorption spectroscopy. Interleukin-1β, interleukin-6, and tumor necrosis factor-α levels were measured in the cerebral cortex by enzyme linked immunosorbent assay. Glutathione peroxidase and superoxide dismutase activity and malondialdehyde content were determined by colorimetry. Our results demonstrate that after treatment, iron levels and malondialdehyde content are decreased, while glutathione peroxidase and superoxide dismutase activities are increased. Further, interleukin-1β, interleukin-6, and tumor necrosis factor-α levels were reduced. These results confirm that compounds of icariin, astragalus, and puerarin may alleviate iron overload by reducing oxidative stress and the inflammatory response