首都医科大学学报 ›› 1998, Vol. 19 ›› Issue (1): 9-12.

• 论著 • 上一篇    下一篇

小鼠急性重复缺氧对脑神经节苷脂的影响

潘颖, 杨典洱, 于培兰   

  1. 首都医科大学生物化学教研室
  • 收稿日期:1997-04-03 修回日期:1900-01-01 出版日期:1998-01-15 发布日期:1998-01-15

The Effect of Gangliosides and Animal Protecting Effect in Acute and Repetitive Hypoxia

Pan Ying, Yang Dian'er, Yu Peilan   

  1. Department of Biochem, Capital University of Medical Sciences
  • Received:1997-04-03 Revised:1900-01-01 Online:1998-01-15 Published:1998-01-15

摘要: 利用重复缺氧的方法,研究小鼠间歇性低氧适应和神经节苷脂(Gls)的作用.发现:在小鼠急性缺氧时,血液和脑组织中的谷胱甘肽过氧化物酶(GSHpx)活性明显下降(P<0.01);脑组织中的GSHpx活性在急性重复缺氧时较1次缺氧时升高(P<0.05);脑组织的Gls含量明显下降(P<0.01).提示Gls和GSHpx有相同的抗自由基活性.急性重复性缺氧时Gls下降,去甲肾上腺素(NE)也下降(P<0.01),不同于持续性低氧的表现.推测脑细胞β受体 腺苷酸环化酶系统在急性重复缺氧时未受严重伤害,Gls和缺氧、缺氧保护有关.

关键词: 急性缺氧, 重复缺氧, 神经节苷脂, 谷胱甘肽过氧化物酶, 血糖

Abstract: Repetitive hypoxia method was used to study the adaptation of mice to intermittent hypoxia and the effect of gangliosides. The activity of GSHpx was decreased(P<0.01), not only in blood but also in brain. Under acute repetitive hypoxia for 4 times, the activity of GSHpx in brain was increased(P<0.05)as compared with that under the hypoxia for one time. At that time, the gangliosides in the membrane of brain cell were decreased(P<0.01). It showed that Gls and the activity of GSHpx were interrelated. The contents of norepinephrine in brain were lower than the controls(P<0.01). The results indicated that the system of β receptor adenyl cyclase was not injured by acute and repetitive hypoxia.

Key words: acute hypoxia, repetitive hypoxia, gangliosides, glutathione peroxidase, blood sugar

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