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EFFECT OF NALOXONE AND DIZOCILPINE ON FOOD CRAVING IN RATS
Author(s): Li Yonghui, ZHENG XiGeng, Wang Dongmei, Liu Caiyi, Bai Yunjing, Yang Xiaoyan, SUI Nan
Pages: 357-
361
Year: 2005
Issue:
3
Journal: ACTA PSYCHOLOGICA SINICA
Keyword: 食物渴求; 纳络酮; MK-801; 条件性位置偏爱; 表达;
Abstract: 实验以条件性位置偏爱(CPP)的表达为渴求模型观察纳络酮及MK-801对大鼠食物CPP表达的影响,探讨摄食行为调控的心理机制.48只SD大鼠分成食物组(24)与对照组(24),3轮食物匹配训练后,在CPP表达前分别注射生理盐水、纳络酮(1.0mg˙kg -1)及MK-801(0.1mg˙kg -1),观察各组动物在食物匹配训练侧停留时间的变化.结果发现,MK-801促进食物CPP的表达,但纳络酮对食物CPP的表达没有显著影响.以上结果表明MK-801(0.1mg˙kg -1)增强动物的食物渴求至少是其增加摄食量的原因之一,而1.0 mg˙kg -1的纳络酮降低动物的摄食量并不是由于食物渴求的下降导致的.MK-801与纳络酮调节动物摄食行为的心理机制可能不一致.
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