›› 2012, Vol. 24 ›› Issue (5): 362-364.doi: 10.3969/j.issn.1004-616x.2012.05.010

• 论著 • 上一篇    下一篇

急性酒精过量对SD大鼠氧化应激的影响

胡军霞;刘江正;梁欣;海春旭   

  1. ( 第四军医大学军事毒理教研室,陕西 西安 710032 )
  • 收稿日期:2012-03-21 修回日期:2012-06-05 出版日期:2012-09-30 发布日期:2012-09-30
  • 通讯作者: 海春旭

Oxidative stress in SD rats induced by excessive alcohol

HU Jun-xia;LIU Jiang-zheng;LIANG Xin;HAI Chun-xu   

  1. (Department of Toxicology, School of Military Preventive Medicine, the Fourth Military Medical University, Xi’an 710032, Shaanxi, China)
  • Received:2012-03-21 Revised:2012-06-05 Online:2012-09-30 Published:2012-09-30
  • Contact: HAI Chun-xu

摘要: 目的: 定量测定与评价急性过量酒精灌胃对大鼠氧化应激的影响。方法:将成年雄性SD大鼠随机分为两组,每组10只。对照组给予大鼠灌胃纯净水;实验组按7.6 ml/kg给大鼠灌胃50%酒精,每天2次,连续3 d,制作酒精急性氧化损伤模型。测定大鼠血液中丙二醛 (malondialdehyde ,MDA)的含量,总抗氧化力 (total antioxidant force,T-AOC)的改变和超氧化物歧化酶 (superoxide dismutase,T-SOD)、过氧化氢酶 (catalase,CAT)、谷胱甘肽硫转移酶 (glutathione sulfur transferase,GST)等活性的变化。结果:与对照组相比,实验组大鼠血清中MDA含量明显升高 (P <0.05);而T-SOD活性无明显变化 (P >0.05),但CAT、GPx、GST活性和T-AOC活力均明显升高 (P<0.05)。结论:过量酒精的摄入可以引起机体氧化应激,表现为脂质过氧化产物增多;抗氧化酶活性诱导性升高,提示只要不损伤机体抗氧化代偿机制,机体仍能够维持氧化-抗氧化体系的平衡。

关键词: 酒精, 氧化应, 损伤

Abstract: OBJECTIVE: To study the determination and evaluation of intragastric administration of alcohol on antioxidative stress of rats. METHODS:The rats were gavaged with 50% alcohol (7.6 ml /kg) to establish the alcohol acute damage model,and then to measure the malondialdehyde (MDA) content,total antioxidant force(T-AOC)ability and superoxide dismutase (T-SOD) and catalase (CAT) activities in blood. RESULTS:The serum MDA content of experimental group was significantly higher than that in the control group (P<0.05). T-SOD was not significantly changed in either group. The aciticities of antioxidation enzyme such as CAT,GPx and GST in the experimental group were higher compared with negative control (P<0.05). T-AOC stayed the same. CONCLUSION:Oxidative stress could happen in over-drinking with more LPO production. At the same time the activities of antioxidative eyzmes were increased. The organism could keep the balance if the mechanism of oxidation-reduction remains intact.

Key words: alcohol, oxidative stress, injury