纪倩;李志刚;唐银杉;莫雨平;姚海江;赛音朝克图;

• 1:北京中医药大学针灸推拿学院

摘要(Abstract)：

目的:观察音乐电针和脉冲电针对慢性应激抑郁模型大鼠行为学和海马神经元及谷氨酸转运体的影响,探讨电针抗抑郁作用的生物学机制,并比较两种电针的疗效差异。方法:SD大鼠随机分为空白组、模型组、氟西汀组、脉冲电针组、音乐电针组,每组12只。采用慢性应激刺激结合孤养的方式建立慢性应激抑郁模型。氟西汀组将盐酸氟西汀按照2mg/kg剂量灌胃给药,电针组给予电针"百会""印堂"穴20min,以上治疗均为每天1次,连续21d。通过旷场实验观察大鼠的行为学变化;用尼氏染色法观察各组大鼠海马神经元数量及形态;用实时荧光定量PCR法检测各组大鼠海马内兴奋性氨基酸转运体(EAATs)EAAT 1、EAAT 2mRNA表达量。结果:与空白组比较,模型组大鼠旷场实验水平运动得分和垂直运动得分明显降低(P<0.01);氟西汀组、脉冲电针组、音乐电针组与模型组比较,大鼠活动度均显著提高(P<0.01)。模型组大鼠海马神经元细胞排列松散、缺失,氟西汀、脉冲电针和音乐电针均可改善此病理变化。模型组大鼠海马内EAAT 1、EAAT 2mRNA表达与空白组比较明显降低(P<0.01);与模型组比较,脉冲电针和音乐电针均可显著提高大鼠海马内EAAT 1、EAAT 2mRNA表达量(P<0.01)。结论:氟西汀、脉冲电针和音乐电针均可改善慢性抑郁大鼠行为学及海马内神经元的形态及数量;脉冲电针、音乐电针在上调大鼠海马内EAAT 1、EAAT 2mRNA表达方面明显优于氟西汀;脉冲电针和音乐电针可通过增加海马EAAT 1、EAAT 2mRNA表达,改善谷氨酸再循环,发挥抗抑郁作用。

关键词(KeyWords)： 抑郁;脉冲电针;音乐电针;海马;谷氨酸转运体

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.81072860)

作者(Author): 纪倩;李志刚;唐银杉;莫雨平;姚海江;赛音朝克图;

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