柴胡疏肝散对卒中后抑郁大鼠行为学及脑区5⁃HT2A、BDNF表达的影响  

Effects of Chaihu Shugan Powder on behaviors and expression of 5-HT2A and BDNF in brain region of a rat model of post-stroke depression

作　　者：贾奎[1] 冯龙 黄晨杰 李金耀 JIA Kui;FENG Long;HUANG Chen-jie;LI Jin-yao(The First Affiliated Hospital of Xinxiang Medical University,Weihui 453100,China)

机构地区：[1]新乡医学院第一附属医院,河南卫辉453100

出　　处：《中成药》2023年第12期3943-3949,共7页Chinese Traditional Patent Medicine

基　　金：河南省科技攻关计划项目(172102310585)。

摘　　要：目的探讨柴胡疏肝散对卒中后抑郁大鼠行为学及额前皮质与纹状体区5-HT2A、BDNF表达的影响。方法大鼠随机分为空白组、假手术组、模型组、柴胡疏肝散组、氟西汀组、联合用药组,每组9只,采用线栓法制备大鼠右侧大脑中动脉闭塞模型,术后给予慢性不可预见的温和刺激造模4周,结束后分别灌胃给予生理盐水5 mL/kg、柴胡疏肝散2 mg/kg、氟西汀12.5 mg/kg、柴胡疏肝散2 mg/kg+氟西汀12.5 mg/kg,每天1次,连续4周。实验期间测定各组大鼠体质量,并行行为学(糖水偏好实验、旷场实验及Morris水迷宫实验)评定。实验结束处死大鼠后,采用RT-qPCR法检测额前皮质与纹状体区5-HT2A、BDNF mRNA表达,免疫组织化学染色法检测大鼠额前皮质与纹状体区5-HT2A、BDNF的阳性细胞表达,Westren blot法检测额前皮质与纹状体区5-HT2A、BDNF蛋白表达。结果与空白组比较,模型组抑郁样行为未见改善,5-HT2A及BDNF mRNA表达、阳性细胞表达、蛋白表达降低(P<0.01);与模型组比较,柴胡疏肝散组、氟西汀组和联合用药组大鼠抑郁样行为改善,5-HT2A及BDNF mRNA表达、阳性细胞表达、蛋白表达升高(P<0.01)。结论柴胡疏肝散可改善卒中后抑郁大鼠的抑郁样行为,其机制可能与增加额前皮质与纹状体区5-HT2A、BDNF表达有关。AIM To investigate the effects of Chaihu Shugan Powder on the behaviors rat models of post-stroke depression(PSD)and the expression of 5-HT2A and BDNF in prefrontal cortex and striatum.METHODS The rats were randomly divided into the blank group,the sham operation group,the model group,Chaihu Shugan Powder group,the fluoxetine group and the combination drug group,with 9 rats in each group.The PSD rat models were established by the right middle cerebral artery occlusion(MCAO)by thread embolism method followed by further exposure to 4 weeks chronic and unpredictable mild stimulation.Subsequently,the rats started their corresponding regime of normal saline 5 mL/kg,Chaihu Shugan Powder 2 mg/kg,fluoxetine 12.5 mg/kg,and Chaihu Shugan Powder 2 mg/kg and fluoxetine 12.5 mg/kg(the combination group),respectively,and had their body mass measured and their behaviors(sugar water preference test,open field test and Morris water maze test)assessed simultaneously during the trial.After the experiment,the rats had their 5-HT2A and BDNF in prefrontal cortex and striatum detected of the mRNA expressions by RT-qPCR;of their expressions of the positive cells by immunohistochemical staining;and of their protein expressions by Westren blot.RESULTS Compared with the blank group,the model group displayed no improvement of depression-like behaviors,and decreased in mRNA expressions,positive cell expressions and protein expressions of 5-HT2A and BDNF(P<0.01).Compared with the model group,the groups intervened with Chaihu Shugan Powder,fluoxetine and combination drug showed improved depression-like behaviors,and increased mRNA expressions,positive cell expressions and protein expressions of 5-HT2A and BDNF as well(P<0.01).CONCLUSION Chaihu Shugan Powder can improve the depression-like behaviors in the PSD rat model,and its mechanism may be associated with the improvement in the expressions of 5-HT2A and BDNF in prefrontal cortex and striatum.

关 键 词：柴胡疏肝散 卒中后抑郁 五羟色胺2A(5-HT2A) 脑源性神经营养因子(BDNF) 

分 类 号：R285.5[医药卫生—中药学]