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EFFECTS OF NOMIFENSINE ON LOCOMOTOR SENSITIZATION IN CHICKS PRETREATED WITH MORPHINE
Authors
肖琳
谭北平
隋 南
隋南
Publication date
1 January 2003
Publisher
Abstract
目的 :探求吗啡对刚出生的小鸡自发活动量的影响以及行为敏感化的多巴胺神经机制。方法 :连续 7d每天给予小鸡ip不同剂量的吗啡 (5、10、2 0mg·kg- 1 ) ,观察其行为敏感化效应 ,撤药 3d后观察多巴胺转运体阻断剂诺米芬新 (0 5、1mg·kg- 1 )的干预效果。结果 :反复给药后 ,5mg·kg- 1 吗啡显著增加小鸡的自发活动量 (P <0 0 5 ,P <0 0 1) ,而且其自发活动量随给药次数的增多而不断增高 ; 2 0mg·kg- 1 吗啡则明显降低小鸡的自发活动量 (P <0 0 5 )。诺米芬新呈剂量依赖性增加 5mg·kg- 1 组小鸡的自发性活动量 (P <0 0 5 )。结论 :反复小剂量吗啡处理能够导致鸟类行为敏感化效应 ,多巴胺可能在其中起重要作用
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Last time updated on 25/07/2018