畜牧兽医学报 ›› 2013, Vol. 44 ›› Issue (9): 1468-1474.doi: 10.11843/j.issn.0366-6964.2013.09.019

• 临床兽医 • 上一篇    下一篇

人参皂苷Rb1对H9N2亚型猪流感病毒诱导急性肺损伤小鼠肺组织氧自由基的影响

刘宝剑1,2,王存连2,徐明举2,魏东2,王国华2,张瑞华2,刘英1*,徐彤2*   

  1. (1.甘肃农业大学动物医学院,兰州730070;2.河北北方学院预防兽医学重点实验室,张家口075000)
  • 收稿日期:2013-03-25 出版日期:2013-09-23 发布日期:2013-09-23
  • 通讯作者: 刘英(1953-),男,博士,教授,博士生导师,E-mail:liuyll@gsau.edu.cn;徐彤(1969-),男,博士,教授,硕士生导师,E-mail:xutong@sohu.com
  • 作者简介:刘宝剑(1968-),男,河北承德人,高级实验师,硕士,主要从事基础兽医研究,E-mail:lbjdyx@163.com
  • 基金资助:

    河北省自然基金(C2009001028;C2011405002)

Effect of Ginsenoside Rb1 on Oxygen Free Radicals in Acute Lung Injury of Mice Induced by H9N2 Swine Influenza Virus

LIU Bao-jian1,2, WANG Cun-lian2, XU Ming-ju2, WEI Dong2, WANG Guo-hua2, ZHANG Rui-hua2, LIU Ying1*, XU Tong2*   

  1. 1. Gansu Agricultural University Lanzhou 730070 China 2. Hebei North UniversityZhangjiakou 075000 China
  • Received:2013-03-25 Online:2013-09-23 Published:2013-09-23

摘要:

本试验将12068周龄BALB/c小鼠随机分为对照组、肺损伤模型组(ALI组)、人参皂苷Rb1组(G-Rb1组),每组40只。ALIG-Rb1组采用100 μL SI A/swine/HeBei/012/2008/猪流感病毒(H9N2 SIV)经鼻腔接种建立急性肺损伤模型,同时G-Rb1组腹腔注射人参皂苷Rb10.1 mL(剂量为10 mg·kg1),连续7 d;对照组鼻腔接种相同剂量生理盐水稀释的正常鸡胚尿囊液。通过观察临床症状、小鼠的体重、肺病理组织学变化、检测小鼠肺组织T-SOD活性、抑制OH·能力及MDANO含量,探讨人参皂苷Rb1G-Rb1)清除肺损伤小鼠氧自由基的能力。结果表明,从第2天末开始ALI组大部分小鼠出现高度的精神沉郁,呼吸极度困难,采食量明显减少,体重下降。肺部明显水肿、淤血和出血,炎性细胞渗出,对照组小鼠各器官未见异常。G-Rb1组症状明显轻于攻毒组,症状出现较缓,症状较轻,死亡时间延迟,死亡率降低。在第468天:抑制OH·能力、T-SOD活力与对照组比,G-Rb1ALI组含量显著减少(P<0.05),但G-Rb1组明显高于ALI组(P<0.05);MDANO含量与对照组比,G-Rb1ALI组含量极显著增加(P<0.01),但G-Rb1组明显低于ALI组(P<0.01)。本研究表明,G-Rb1在一定浓度范围内,具有清除由病毒诱导的肺损伤组织中自由基的作用,保护自由基对肺组织的氧化损伤。

Abstract:

To study effect of ginsenoside Rb1 on oxygen free radicals in acute lung injury of mice induced by A/swine/HeBei/012/2008/swine influenza virus (H9N2 SIV), 120 six to eight weeks old BALB/c mice were randomly divided into three groups with forty in eachThe mice in control group were inoculated intranaslly with an equivalent dilution of noninfectious allantoic. And that of acute lung injury group (ALI group) and Ginsenoside Rb1 group (G-Rb1 group) both were inoculated intranasally with H9N2 SIV diluted in sterile salineand meanwhileanimals of G-Rb1 group were treated with Ginsenoside Rb1 (10 mg·kg1) by intraperitoneal injection continuously for up to seven daysThe clinical signs and body losses were observed in eight infected mice of each groupAt the same timeat the indicated time points after infectionlung histopathology was observed and the activity of T-SODinhibition ability of OH·, MDA and NO content of mouse lungs were detectedThe results showed that mice of ALI group appeared depressionruffled furfeed intake reduction and weight loss post first 2 days of infectionFurthermorepulmonary edemahemorrhageand a number of inflammatory cells exuding from the alveolar were observed in lungs of infected micehowevermice organs in the control group showed no abnormalityFor mice in G-Rb1 group, clinical symptoms were significantly improved, while survival time was delayed and mortality was decreasedOn the 4th, 6th and 8th day after infectionthe inhibition ability of OH· and T-SOD activity were significantly reduced (P<0.05) in ALI group and G-Rb1 group mice compared with that of control group micebut the indexes of G-Rb1 group were significantly higher than that of ALI group (P<0.05)The contents of NO and MDA were increased significantly (P<0.01) in ALI group and G-Rb1 group mice compared with that of control group mice, but these contents of G-Rb1 group was significantly lower than that of ALI group (P<0.01). Results indicate that G-Rb1 could scavenge free radicals in acute lung injury lung induced by H9N2 SIV in miceand G-Rb1 is helpful to attenuate the lung injury induced by oxygen radicals.

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