天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (10): 1743-1747.doi: 10.16333/j.1001-6880.2015.10.011

• 研究简报 • 上一篇    下一篇

油橄榄叶提取物体内外抗氧化活性研究

郑洁1,何海荣1,王宁丽1,裴栋2,田亚涛1,谢雪健1,刘晔玮1*   

  1. 1 兰州大学公共卫生学院营养与食品卫生研究;2中国科学院兰州化学物理研究所 中科院西北特色植物资源化学重点实验室,兰州 730000
  • 出版日期:2015-10-30 发布日期:2015-10-30

In Vitro and in Vivo Antioxidant Activity of Olea europaea L. Leaf Extracts

ZHENG Jie1, HE Hai-rong1, WANG Ning-li1, PEI Dong2, TIAN Ya-tao1, XIE Xuejian1, LIU Ye-wei1*   

  1. 1 School of Public Health,Lanzhou University; 2 Key Laboratory of Chemistry of Northwestern Plant  Resources,Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,Lanzhou 730000,China
  • Online:2015-10-30 Published:2015-10-30

摘要: 为评价油橄榄叶提取物的体内和体外抗氧化能力,体外抗氧化活性评价采用DPPH·和·OH清除能力实验,体内抗氧化活性评价采用D-半乳糖连续背部注射制作亚急性衰老小鼠模型,以VE为阳性对照组,油橄榄叶提取物58、116、232 mg/kg BW灌胃30 d,处死后测定MDA含量、SOD和GSH-Px活性,观察肝脏和大脑组织病理形态学的改变。结果表明,衰老小鼠MDA的含量明显升高,血清、肝组织中的SOD、GSH-Px和脑组织中的SOD活性均明显降低,与正常小鼠比较有差异(P<0.05);各剂量的油橄榄叶提取物均能提高衰老小鼠血清、肝组织中的SOD、GSH-Px和脑组织中的SOD活性,并降低MDA的含量;油橄榄叶提取物可明显改善D-gal致衰老小鼠肝脏、大脑皮质和海马神经元的细胞形态和水肿情况。油橄榄叶提取物清除DPPH·和·OH的IC50分别为0.064 mg/mL和0.066 mg/mL。实验结果表明油橄榄叶提取物具有较好的抗氧化活性。

关键词: 油橄榄叶提取物, D-半乳糖, 抗氧化, 小鼠

Abstract: The aim of this study was to evaluate the in vitro and in vivo antioxidant activity of Olea europaea L.leaf extracts.The in vitro antioxidant activity was evaluated by DPPH· and ·OH scavenging assays,and the in vivo antioxidant activity was evaluated using subacute aging mice model.The subacute aging model mice were made by back subcutaneous injection of D-galactose every day.With VE as positive control,the mice were given by garage three different doses (58,116,232 mg/kg BW,respectively) of O.europaea leaf extracts,for 30 days,the malondialdehyde (MDA),superoxide dismutase (SOD),glutathione peroxidase (GSH-Px) were determined,and the liver and brain tissue’s morphological changes were observed.The SOD and GSH-Px activities in aging model group were decreased,and MDA level was increased significantly as compared to normal mice (P<0.05).While in the O.europaea leaf extract treatment group,the activity of SOD and GSH-Px were increased and MDA level decreased significantly as compared to the model group (P<0.05). O.europaea leaf extracts improved the cell shape and the edema situation of D-gal induced aging mice’s liver,brain cortex and hippocampal neurons obviously.The IC50 of O.europaea  leaf extracts scavenging DPPH· and ·OH were 0.064 mg/mL and 0.066 mg/mL respectively.The experimental results indicated that O.europaea leaf extracts had good antioxidant activity.

Key words: Olea europaea L.leaf extract, D-gal, antioxidation, mice

中图分类号: 

R151.1