食品科学

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莲房原花青素对极低频电磁场致海马神经元 损伤的预防作用

张海晖1,武 妍1,张 瑞1,张 爽1,段玉清1,*,孙桂波2,孙晓波2   

  1. 1.江苏大学食品与生物工程学院,江苏 镇江 212013;2.中国医学科学院药用植物研究所,北京 100193
  • 出版日期:2013-07-15 发布日期:2013-06-28
  • 通讯作者: 段玉清
  • 基金资助:

    国家自然科学基金项目(309700309);国家重大新药创制科技专项(2009ZX09502~015;2012ZX09501~001);
    国家博士后基金项目(20100471379);江苏大学人才基金项目(05JDG013;128300289)

Preventive Effect of Procyanidins from Lotus Seedpod on Hippocampal Neurons Injury Induced by Extremely Low Frequency Electromagnetic Field

ZHANG Hai-hui1,WU Yan1,ZHANG Rui1, ZHANG Shuang1, DUAN Yu-qing1,*,SUN Gui-bo2,SUN Xiao-bo2   

  1. 1. School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
    2. Institute of Medicinal Plants, Chinese Academy of Medical Sciences, Beijing 100193, China
  • Online:2013-07-15 Published:2013-06-28
  • Contact: DUAN Yu-qing

摘要:

研究极低频电磁场(ELF-EMF)对原代培养的大鼠海马神经元的损伤作用及莲房原花青素(LSPC)的预防 作用。采用原代培养建立海马神经元极低频电磁场损伤模型及LSPC预处理模型细胞,检测神经细胞生存率、细 胞形态、海马神经元细胞内活性氧(ROS)含量。结果表明:2.5、5、10μg/mL LSPC预处理组的细胞生存率分别为 81.23%、90.18%和93.45%,明显高于模型组(66.88%,P<0.05); ELF-EMF引起神经元细胞内ROS含量上升(荧光强 度(228.19±16.28)),经2.5、5、10μg/mL LSPC预处理后细胞内ROS荧光强度显著下降(P<0.05)。由此提示LSPC对 ELF-EMF导致的大鼠海马神经元损伤有明显的预防作用。

关键词: 极低频电磁场, 海马神经元, 莲房原花青素, 活性氧

Abstract:

To investigate the preventive effect of procyanidins from lotus seedpod (LSPC) on hippocampal neuron injury induced
by extremely low frequency electromagnetic fields (ELF-EMF), primary cultured hippocampal neurons from rats were pretreated
with LSPC before exposure to ELF-EMF. Survival rates, the morphology of neurons and the level of reactive oxygen species
(ROS) were measured. The survival rates of hippocampal neurons pretreated with LSPC (2.5, 5 μg/mL and 10 μg/mL) were
81.23%, 90.18% and 93.45%, respectively, which were significantly higher than those from the model group (66.88%,
P < 0.05). Electromagnetic radiation increased the ROS level in neurons (the fluorescence intensity was (228.19 ± 16.28), while
pretreatment with 2.5, 5, 10 μg/mL of LSPC reduced ROS level obviously (P < 0.05). All these studies indicated
pretreatment with LSPC could significantly block hippocampal neuron injury induced by extremely low frequency
electromagnetic field.

Key words: extremely low frequency electromagnetic field, hippocampal neuron, procyanidins from lotus seedpod (LSPC), reactive oxygen species (ROS)

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