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吸烟对氧自由基和纤溶系统的影响
引用本文:王勤,周宏研,孙明,贾真.吸烟对氧自由基和纤溶系统的影响[J].中南大学学报(医学版),1997(2).
作者姓名:王勤  周宏研  孙明  贾真
作者单位:附属湘雅医院心血管内科,广州市红十字会医院
摘    要:动态观察20名健康男性急性吸烟前后超氧化物歧化酶(SOD),丙二醛(MDA),组织型纤溶酶原激活剂(t-PA)和纤溶酶原激活剂抑制物(PAI-1)活性的改变。结果表明:受试者急性吸烟后SOD增加(P<0.05),MDA减少(P<0.05);纤溶系统有短暂激活。吸烟者t-PA的释放较不吸烟者减少(P<0.05);t-PA的释放与SOD呈正相关,与MDA呈负相关。

关 键 词:吸烟  超氧化物歧化酶  丙二醛  组织型纤溶酶原  激活剂  纤溶酶原激活剂  抑制物

EFFECTS OF SMOKING ON OXYGEN FREE RADICALS AND FIBRINOLYTIC SYSTEM
Wang Qin,Zhou Hongyan,Sun Ming,Jia Zhen.EFFECTS OF SMOKING ON OXYGEN FREE RADICALS AND FIBRINOLYTIC SYSTEM[J].Journal of Central South University (Medical Sciences)Journal of Central South University (Medical Sciences),1997(2).
Authors:Wang Qin  Zhou Hongyan  Sun Ming  Jia Zhen
Abstract:The effects of smoking on SOD, MDA, t PA, PAI 1 were studied in 20 healthy men (10 smokers and 10 nonsmokers). Results: SOD decreased and MDA increased significantly in smokers. After acute smoking, SOD decreased and MDA increased significantly in all the subjects. t PA and PAI 1 activities were increased immediately after acute smoking. There was a significant positive relationship between increased t PA and SOD, whereas a significant negative relationship exists between increased t PA and MDA. Conclusion: Smoking increases oxygen free radicals. The release of t PA is decreased in smokers, that might be resulted from the increases of oxygen free radicals.
Keywords:Smoking  superoxide Dismutase  malondialdehyde  oxygen free radicals  Tissue  type plasminogen activator  plasminogen activator in inhibitor  fibrinolytic system  
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