小剂量吗啡对大鼠活动性的影响

被引:5
作者
陈晶
胡家芬
董闽田
杨晓燕
隋南
机构
[1] 中国科学院心理研究所!北京
[2] 福建漳州医院神经内科
关键词
吗啡; 活动性; 剂量; 时间; 大鼠;
D O I
暂无
中图分类号
R96 [药理学];
学科分类号
100602 ; 100706 ;
摘要
腹腔注射不同剂量吗啡(8,4,2,1mg/kg/day),观察各组大鼠在给药后不同时间内的活动性(locomotoractivity,LA)。连续给药8天,每天给药后95min内,每间隔15min,记录大鼠5min内在限定空间中所走格数。结果表明:随吗啡给药剂量或次数增加,LA呈升高趋势;使大鼠LA明显兴奋的适宜低剂量为4mg/kg/day,该剂量下每天给药后15-20minLA为峰值,而且此时段LA逐日升高,至第8日出现下降趋势。此结果在一定程度上动态地揭示了吗啡剂量、作用时间及其运动效应之间的相互关系。
引用
收藏
页码:296 / 300
页数:5
相关论文
共 9 条
[1]  
神经科学纲要[M]. 北京医科大学、中国协和医科大学联合出版社 , 韩济生主编, 1993
[2]  
药物滥用[M]. 科学出版社 , 姜佐宁,万文鹏主编, 1992
[3]  
Intraaccumbens injections of substance P, morphine and amphetamine: effects on conditioned place preference and behavioral activity[J] . Brain Research . 1998 (1)
[4]   The role of stress in drug self-administration [J].
Piazza, PV ;
Le Moal, M .
TRENDS IN PHARMACOLOGICAL SCIENCES, 1998, 19 (02) :67-74
[5]   Time-dependent differences in the rat's motor response to amphetamine [J].
Gaytan, O ;
Swann, A ;
Dafny, N .
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR, 1998, 59 (02) :459-467
[6]  
Conditioned place preference using opiate and stimulant drugs: A meta-analysis[J] . M.T. Bardo,J.K. Rowlett,M.J. Harris.Neuroscience and Biobehavioral Reviews . 1995 (1)
[7]  
Molecular Mechanisms of Drug Reinforcement and Addiction[J] . D W Self,E J Nestler.Annual Review of Neuroscience . 1995
[8]   STRAIN DIFFERENCES IN THE REWARDING AND DOPAMINE-RELEASING EFFECTS OF MORPHINE IN RATS [J].
SHOAIB, M ;
SPANAGEL, R ;
STOHR, T ;
SHIPPENBERG, TS .
PSYCHOPHARMACOLOGY, 1995, 117 (02) :240-247
[9]  
Conditioned place preference: An evaluation of morphine’s positive reinforcing properties[J] . Adina Blander,Tony Hunt,Richard Blair,Zalman Amit.Psychopharmacology . 1984 (1)