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• 基础研究 • 上一篇    下一篇

甲醛对小鼠脑组织脂质过氧化及抗氧化酶的影响

叶 琳1,邢沈阳2,吕 毅1,隋春生1,王春华1,张 黎,李 莉#   

  1. 1. 吉林大学公共卫生学院环境卫生学教研室,吉林 长春 130021;2.吉林大学护理学院普通课教研室,吉林 长春130021
  • 收稿日期:2004-06-11 修回日期:1900-01-01 出版日期:2005-07-28 发布日期:2005-07-28

Effects of formaldehyde on lipid peroxidation and antioxidase in mouse brain tissues

YE Lin1, XING Shen-yang2, LU Yi1, SUI Chun-sheng1, WANG Chun-hua1, ZHANG Li,LI Li#   

  1. 1. Department of Environment Hygiene, School of Public Health, Jilin University, Changchun 130021, China;2. Department of General Courses, School of Nursing,Jilin University,Changchun130021, China
  • Received:2004-06-11 Revised:1900-01-01 Online:2005-07-28 Published:2005-07-28

摘要: 目的:通过观察甲醛对小鼠脑组织脂质过氧化及抗氧化酶的影响,探讨甲醛对小鼠的神经毒性及作用机理。 方法:采用腹腔注射方式给小鼠染毒,甲醛剂量分别为0.2 mg·kg-1(1/2000 LD50)、2.0 mg·kg-1(1/200 LD50)和20.0 mg·kg-1(1/20 LD50),每天1次,染毒7 d,测定小鼠脑组织的超氧化物歧化酶(SOD)、谷光甘肽过氧化物酶(GSH-Px)的活力和丙二醛(MDA)的含量。 结果:20.0 mg·kg-1剂量组小鼠脑组织中MDA含量明显高于对照组(P<0.01)。2.0和20.0 mg·kg-1剂量组小鼠脑组织SOD活性和GSH-Px活性均明显低于对照组 (P<0.05或P<0.01)。 结论:甲醛可以引起染毒小鼠脑组织脂质过氧化,并降低抗氧化酶的活性,造成脑组织氧化性损伤。

关键词: 毒性, 脂质过氧化作用, 丙二醛, 超氧化物歧化酶, 谷胱甘肽过氧化物酶

Abstract: Objective To study the effects of formaldehyde on the lipid peroxidation and antioxidase in mouse brain tissues to explore the neurotoxic action of formaldehyde and its mechanism. Methods The mice in control group were exposed to 0.9% NaCl at 0.1 mL/10 g,the mice in low, moderate and high dose groups were exposed to formaldehyde with 0.2, 2.0, and 20.0 mg·kg-1 i.p, once per day for seven days, and then the activities of SOD,GSH-Px and the content of MDA in mice were measured. Results The content of MDA in mouse brain tissues was significantly higher than that in the control group (P<0.01) after exposure to 20.0 mg·kg-1(1/200 LD50)formaldehyde; the SOD activitiy and the GSH-Px activitiy in mouse brain tissues were significantly lower than those in the control group (P<0.01 or P<0.05) after exposure to 20.0 mg·kg-1(1/20 LD50) and 2.0 mg·kg-1(1/200 LD50) formaldehyde. Conclusion Formaldehyde might induce the lipid peroxidation, decrease the activities of SOD and GSH-Px, and cause the oxidative damage in mouse brain tissues.

Key words: toxicity, lipid peroxidation, malondia ldehyde, superoxide dismutase, glutathione peroxidase

中图分类号: 

  • R-332, R992