首都医科大学学报 ›› 1994, Vol. 15 ›› Issue (1): 1-4.

• 论著 • 上一篇    下一篇

麻醉与兴奋小鼠急性重复缺氧耐受性的变化

崔秀玉, 吕国蔚   

  1. 首都医学院神经生物学研究室
  • 收稿日期:1993-01-26 修回日期:1900-01-01 出版日期:1994-01-15 发布日期:1994-01-15

Tolerance Changes of Acute Repeated Hypoxia in Anesthetized and Excited Mice

Cui Xiuyu, Lü Guowei   

  1. Department of Neurobiology, Capital Institute of Medicine
  • Received:1993-01-26 Revised:1900-01-01 Online:1994-01-15 Published:1994-01-15

摘要: 分别对处于麻醉(用戊巴比妥钠)和兴奋(用咖啡因)状态下的小鼠进行急性重复缺氧实验,发现两者第1次缺氧的耐受时间平均约为42和9min,分别显着长于和短于对照动物第1次缺氧的平均耐受时间(13min).麻醉与兴奋小鼠第2、3、4次重复缺氧的耐受时间均分别约为其各自第1次缺氧耐受时间的1.6、1.8和2倍,均显着低于对照小鼠3、5、7倍的递增幅度.结果提示,麻醉和兴奋分别增强和降低动物对单次缺氧的耐受性,但对重复缺氧的耐受或适应均明显降低.

关键词: 急性重复缺氧耐受性, 戊巴比妥钠, 咖啡因, 小鼠

Abstract: Repeated exposure to acute hypoxia was performed on pentobarbital-anesthetized and coffeine-excited mice. The average tolerance time for first run in these two groups was 42 and 9 min, which was significantly longer and shorter than that of control group(13 min)respectively.The tolerance time of second, third and forth run in anesthetized and excited mice was 1.6 , 1.8 and 2 times longer than that of their own first run respectively. However, The results of both groups were all significantly shorter than that of control group which were 3, 5 and 7 times.These results indicate that the animal's anaesthesic and excited states may increase and decrease tolerance of the animals to first run of hypoxia respectively. However,the tolerance or adaptation to subsequent repeated hypoxia is markedly decreased in both groups.

Key words: tolerance to acute repeated hypoxia, sodium pentobarbital, coffeine, mice

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