新型镇静催眠化合物B2对小鼠脑内单胺类神经递质水平的影响

被引:2
作者
史源
董静文
唐丽娜
康瑞霞
张建军
机构
[1] 中国医学科学院北京协和医学院药物研究所天然药物活性物质与功能国家重点实验室
关键词
镇静催眠; 单胺类神经递质; 单胺氧化酶;
D O I
10.13220/j.cnki.jipr.2014.03.019
中图分类号
R965 [实验药理学];
学科分类号
100602 ; 100706 ;
摘要
目的研究新型镇静催眠化合物B2对小鼠脑内单胺类神经递质水平的影响。方法小鼠随机分为溶剂对照组和B2给药组(5 mg/kg,ip),采用高效液相色谱-电化学法(HPLC-ECD)检测B2对小鼠不同脑区中去甲肾上腺素(NE)、多巴胺(DA)和5-羟色胺(5-HT)等单胺类神经递质水平的影响;并用比色法测定化合物B2对小鼠下丘脑、纹状体及大脑皮质中单胺氧化酶(MAO)活性的影响。结果与对照组相比,B2(5 mg/kg,ip)可使小鼠下丘脑中NE含量由(1.08±0.09)μg/g显著降低至(0.88±0.07)μg/g(P<0.01);纹状体中DA含量由(12.85±2.21)μg/g显著降低至(8.44±2.25)μg/g(P<0.01);下丘脑中5-HT含量由(1.12±0.12)μg/g显著降低至(0.56±0.18)μg/g(P<0.01)。B2对小鼠不同脑区MAO的活性无显著影响。结论 B2引起小鼠不同脑区中单胺类递质NE、DA和5-HT水平的下降可能是其发挥镇静催眠作用的机制之一。
引用
收藏
页码:363 / 367
页数:5
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