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• 基础研究 • 上一篇    下一篇

缺氧耐受对小鼠学习和记忆的影响

李 晔1,谢湘林1,周 鸣2,刘 凯1,臧晓峰1,吴轶川1,刘宏雁1,叶秋芳1,马春颖1   

  1. 1.吉林大学药学院药理学教研室,吉林 长春130021; 2.长春中医药大学附属医院新药研发中心,吉林 长春 130021
  • 收稿日期:2006-05-29 修回日期:1900-01-01 出版日期:2007-05-28 发布日期:2007-05-28
  • 通讯作者: 刘宏雁

Effect of hypoxic tolerance on learning  and memory in mice

LI Ye1,XIE Xiang-lin1,ZHOU Ming2,LIU Kai1,ZANG Xiao-feng1,WU Yi-chuan1,LIU Hong-yan1,YE Qiu-fang1,MA Chun-ying1   

  1. 1.Department of Pharmacology,School of Pharmacy,Jilin University,Changchun 130021,China;2.Research and Development Center of New Drugs,Affiliated Hospital of Changchun University of Traditional Chinese Medicine,Changchun 130021,China
  • Received:2006-05-29 Revised:1900-01-01 Online:2007-05-28 Published:2007-05-28
  • Contact: LIU Hong-yan

摘要: 目的:观察小鼠缺氧耐受对学习、记忆的影响。方法:40只昆明种小鼠,按体重随机分为正常对照组(12只),1次缺氧组和4次缺氧组(各14只)。分别采用Morris水迷宫法、跳台法和避暗法观察缺氧耐受对小鼠学习、记忆的影响。结果:水迷宫测试中,与正常对照组比较,1次缺氧组小鼠第1、2、4及5天的搜索平台的总时间均明显延长(P<0.05),第2、3及5天的总游程均明显增加(P<0.05);与1次缺氧组比较,4次缺氧组小鼠前5天搜索平台的总时间均明显缩短(P<0.01或P<0.05),第1、4及5天的总游程均明显缩短(P<0.01或P<0.05),第1天的朝向角明显缩小(P<0.05);与正常对照组比较,4次缺氧组小鼠第1天的总游程明显缩短(P<0.05)。跳台测试中,与正常对照组比较,1次缺氧组小鼠第2天错误次数明显增多(P<0.05);与1次缺氧组比较,4次缺氧组第2天的潜伏期和错误次数均明显减少(P<0.05)。避暗实验中,各组第2天的潜伏期和错误次数比较,差异均无显著性(P>0.05)。结论:1次缺氧可减弱小鼠的学习、记忆功能,缺氧耐受(4次缺氧)可减轻缺氧对学习、记忆的损害,甚至增强小鼠的学习、记忆能力。

关键词: 缺氧耐受, 学习, 记忆, 小鼠

Abstract: To study the effects of hypoxic tolerance on learning and memory in mice.Methods Forty mice were divided into 3 groups by weight randomly:control group,run 1 hypoxic group and run 4 hypoxic group. Morris water maze test,step-down test and step through test were used to observe the effect of hypoxic tolerance on learning and memory in mice .Results In the Morris water maze test,compared with control group,the total swimming time of run 1 hypoxic mice increased significantly on the 1st,2nd,4th,5th day and the total swimming distance of run 1 hypoxic mice also increased evidently on the 2nd,3th,5th day (P<0.05); compared with run 1 hypoxic mice,the total swimming time of run 4 hypoxic mice decreased significantly in the first five days(P<0.01 or P<0.05),and the total swimming distance of run 4 hypoxic mice decreased evidently on the 1st,4th,5th day (P<0.01 or P<0.05),and the starting angle of run 4 hypoxic mice diminished evidently on the first day(P<0.05); compared with control group,the total swimming distance of run 4 hypoxic mice decreased evidently on the first day (P<0.05).In the step-down test,compared with control group,wrong times on the 2nd day of run 1 hypoxic mice increased evidently(P<0.05);compared with run 1 hypoxic mice,latency and wrong times on the 2nd day of run 4 hypoxic mice also decreased significantly(P<0.05).Conclusion Learning and memory of the mice injuried by run 1 hypoxic can be improved by run 4 hypoxic tolerance.

Key words: hypoxic tolerance, learning , memory, mice

中图分类号: 

  • R363