半夏厚朴汤抗抑郁活性部位的筛选

目的:筛选半夏厚朴汤的抗抑郁活性部位。方法:选用小鼠行为绝望模型评价抗抑郁作用;用荧光分光光度法测定单胺类神经递质。结果:半夏厚朴汤提取物(AE)和其4个部位均不同程度地降低绝望模型中小鼠游泳和悬尾的不动时间,具有一定的时效关系。其中以半夏厚朴汤提取物(AE)、石油醚提取物(AE-1)和水溶性部分(AE-4)最为显著,相互间无显著性差异。半夏厚朴汤提取物(AE)可显著地提高纹状体中5-HT含量和皮层中NE含量,而对其他脑区中神经递质无显著性影响。石油醚提取物(AE-1)可显著地提高纹状体中5-HT含量和皮层中NE和DA含量,氯仿提取物(AE-2)能极显著地提高皮层中DA含量。结论:半夏厚朴汤具有抗抑郁作用,其活性成分主要分布在石油醚和水溶性部位。半夏厚朴汤可能是部分地通过对单胺类神经递质系统的整合而达到抗抑郁目的。

Screening of Antidepressant Fractions of Banxia Houpu Decoction

Objective: To screen the antidepressant fractions of Banxia Houpu Decoction. Method: Behavioral despair models in mice were used to evaluate antidepressant activities and the levels of monoamine neurotransmitters in regions of animal brains were determined with spectrophotofluoremetry method. Result: The extract of Banxia Houpu Decoction (AE) and its four fractions were able to elicit time-dependent reducing of duration of immobility in the tail suspension test and the forced swimming test in mice. A-mong these test samples, AE, petrol fraction (AE-1) and water soluble fraction (AE-4) were more potent, but there was no significant difference between them. AE significantly increased 5-HT level in mice striatum and NE level in mice cortex, respectively, and did not affect any monoamine neurotransmitters in other regions of animal brain. AE-1 elevated 5-HT level in the striatum and the NE and DA level in the cortex, chloroform fraction (AE-2) only significantly increased DA level in cortex. Conclusion: Banxia Houpu Decoction has antidepressant effect. The active parts are in AE-1 and AE-4. The antidepressant action of Banxia Houpu Decoction is probably be mediated in part through many monoamine neurotransmitter systems.