神经药理学报 ›› 2016, Vol. 6 ›› Issue (4): 1-12.DOI: 10.3969/j.issn.2095-1396.2016.04.001

• 研究论文 •    下一篇

荭草苷和牡荆苷对H2O2氧化损伤人红细胞的保护作用

王晓茹,杜云广,王书华,安芳   

  1. 1. 河北北方学院,张家口,075000,中国
    2. 石药集团有限公司,石家庄,050000,中国
  • 出版日期:2016-08-26 发布日期:2016-08-31
  • 通讯作者: 安芳,男,教授,硕士生导师;研究方向:中药有效成分的提取及药理活性研究;Tel:+86-0313-4029558,E-mail:wangshyh@126.com
  • 作者简介:王晓茹,女,硕士研究生;研究方向:中药有效成分的提取及药理活性研究;Tel:+86-0313-4029558,Email:wangxrgf@126.com
  • 基金资助:

     河北北方学院重大项目(No.ZD1314),河北省研究生创新资助项目(No.2015-203,No.2016-288)

Protective Effects of Orientin and Vitexin on H2O2 -Induced Oxidative Stress in Human Erythrocytes

WANG Xiao-ru,DU Yun-guang,WANG Shu-hua,AN Fang   

  1. Hebei North University,Zhangjiakou,075000,China
  • Online:2016-08-26 Published:2016-08-31
  • Contact: 安芳,男,教授,硕士生导师;研究方向:中药有效成分的提取及药理活性研究;Tel:+86-0313-4029558,E-mail:wangshyh@126.com
  • About author:王晓茹,女,硕士研究生;研究方向:中药有效成分的提取及药理活性研究;Tel:+86-0313-4029558,Email:wangxrgf@126.com
  • Supported by:

     河北北方学院重大项目(No.ZD1314),河北省研究生创新资助项目(No.2015-203,No.2016-288)

摘要: 目的:探讨荭草苷和牡荆苷对人红细胞氧化损伤的保护作用及其构效关系。方法:建立过氧化氢(hydrogen peroxide,H 2 O 2 )氧化损伤人红细胞的模型,实验随机分为正常组,H 2 O 2 氧化损伤组,荭草苷和牡荆苷(终浓度 10、20、40 μg·mL -1 )不同剂量组,20 μg·mL -1 维生素 C(vitamin C,VC)阳性对照组。研究比较荭草苷和牡荆苷各剂量组对 1,1- 二苯基 -2- 苦肼基(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基的清除率、氧化损伤红细胞的溶血率、活性氧(reactive oxygen species,ROS)、抗氧化酶系及 ATP 酶活性、丙二醛(malonaldehyde,MDA)、高铁血红蛋白(methemoglobin,MetHb)及巯基(sulfhydryl,-SH)含量的影响,扫描电镜观察红细胞表面形态。结果:荭草苷和牡荆苷对 DPPH 自由基都具有一定的清除能力,均能有效降低红细胞溶血率,减少 ROS、MDA 及 MetHb 含量,均能不同程度保护抗氧化酶、ATP 酶活性及增加 -SH 含量(P<0.05),显著改善红细胞膜的形态,其中 10 μg·mL -1 和 20 μg·mL -1 的荭草苷的作用效果优于相同剂量的牡荆苷,而40 μg·mL -1 的荭草苷和牡荆苷对红细胞具有相同的保护作用,且与 VC 作用相当。结论:荭草苷和牡荆苷对H 2 O 2 致氧化损伤的人红细胞具有保护作用,可能是通过对抗氧自由基,抑制脂质过氧化,保护细胞内抗氧化酶活性和细胞膜蛋白上的 -SH 来实现的,且荭草苷的保护作用效果优于牡荆苷。

关键词: 荭草苷, 牡荆苷, 人红细胞, 抗氧化

Abstract: Objective:This study investigated the protective effects of orientin and vitexin on hydrogen peroxide (H 2 O 2 )-induced oxidative stress in human erythrocytes and structure-activity relationship. Methods:Oxidative stress model induced by H 2 O 2  was established in this study. The experiment was randomly divided into normal group,H 2 O 2 group (oxidative stress group),20 μg·mL -1 of VC group as a positive control,10,20 and 40 μg·mL -1 of Orientin groups and Vitexin groups,respectively. Erythrocyte suspension was incubated with different concentrations of orientin and vitexin,and then 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging ability,hemolysis rate,reactive oxygen species (ROS),antioxidant and ATP enzymes,malonaldehyde (MDA),methemoglobin (MetHb) and sulfhydryl (-SH) content were evaluated by different methods. Erythrocyte morphology was also observed with scanning electron microscope. Results:Erythrocytes pre-treated orientin or vitexin had certain DPPH-radical clearance ability,lowered hemolysis rates,reduced the content of ROS,MDA,MetHb protected antioxidative enzymes and ATPs activities and increased thiol group content in a dose-dependent manner (P<0.05). Moreover,orientin and vitexin recovered cell surface morphogy. Comparative results showed the bio-activity of orientin was same as vitexin when the concentration was 40 μg·mL -1 for both,which was equivalent to VC at 20 μg·mL -1 . But orientin showed better biological activity than vitexin at the concentrations of 10 and 20 μg·mL -1 . Conclusion:Orientin and vitexin are able to protect human erythrocytes from oxidative stress through scavenging oxygen free radicals,inhibiting the perioxidation of lipids,protecting anti-oxidative and ATP enzymes activities and increasing-SH content. Moreover,the protective effects of orientin showed better biological activity than vitexin.

Key words: orientin, vitexin, human erythrocytes, anti-oxidative