补阳还五汤对局灶性脑缺血大鼠海马神经可塑性蛋白表达的影响  

Effect of Buyang Huanwu Decoction on the Expressions of Hippocampal Neuroplasticity Proteins in Rats with Focal Cerebral Ischemia

作　　者：林子越 陆允 李慢中 李明聪 王含誉 庄雨明 贾靖婷 赵晖[1] LIN Ziyue;LU Yun;LI Manzhong;LI Mingcong;WANG Hanyu;ZHUANG Yuming;JIA Jingting;ZHAO Hui(School of Traditional Chinese Medicine,Capital Medical University,Beijing 100069,China;Beijing Shijitan Hospital,Capital Medical University,Beijing 100038,China)

机构地区：[1]首都医科大学中医药学院,北京100069 [2]首都医科大学附属北京世纪坛医院,北京100038

出　　处：《中国中医药信息杂志》2024年第12期99-104,共6页Chinese Journal of Information on Traditional Chinese Medicine

基　　金：国家自然科学基金(82174471、82104974)。

摘　　要：目的采用多模态磁共振成像观察补阳还五汤对局灶性脑缺血大鼠海马组织结构、血流灌注的影响,结合神经可塑性蛋白及糖代谢相关转运蛋白表达变化分析其影响海马神经可塑性的作用机制。方法制备右侧大脑中动脉栓塞致局灶性脑缺血大鼠模型,将大鼠随机分为假手术组、假手术+补阳还五汤组、模型组、模型+补阳还五汤组,假手术组和模型组予生理盐水灌胃30 d,假手术+补阳还五汤组和模型+补阳还五汤组予补阳还五汤灌胃30 d。T2 mapping成像观察海马组织结构,动脉自旋标记成像检测海马血流灌注情况,Western blot检测海马组织神经可塑性相关蛋白突触素(SYN)、生长相关蛋白-43(GAP-43)、葡萄糖转运蛋白(GLUT)和单羧酸转运蛋白(MCT)表达。结果与假手术组比较,模型组大鼠右侧和左侧海马T2弛豫时间均显著增加(P<0.01,P<0.001),右侧海马血流量显著降低(P<0.05),右侧海马组织SYN、GAP-43、MCT4、MCT2蛋白表达显著降低(P<0.01,P<0.001),双侧海马组织GLUT1、GLUT3蛋白表达显著降低(P<0.05,P<0.01,P<0.001);与模型组比较,模型+补阳还五汤组大鼠右侧海马T2弛豫时间显著减少(P<0.05),右侧海马血流量显著升高(P<0.05),双侧海马组织SYN、GAP-43、GLUT1、GLUT3蛋白表达均显著升高(P<0.01,P<0.001),右侧海马组织MCT4、MCT2蛋白表达显著升高(P<0.01,P<0.001)。结论补阳还五汤减轻局灶性脑缺血大鼠海马损伤可能与改善其血流灌注、上调神经可塑性相关蛋白、促进海马轴突再生和突触重塑、调节神经细胞能量代谢有关。Objective To observe the effect of Buyang Huanwu Decoction on hippocampal tissue structure and blood perfusion in rats with focal cerebral ischemia using multi-modal MRI;To analyze the mechanism of Buyang Huanwu Decoction on hippocampal neuroplasticity combined with the expression changes of neuroplasticity proteins and glucose metabolism related transporters.Methods Focal cerebral ischemia rat model induced by right middle cerebral artery occlusion were established.The rats were divided into sham-operation group,sham-operation+Buyang Huanwu Decoction group,model group and model+Buyang Huanwu Decoction group.The rats in the shamoperation group and model group were given normal saline for 30 days,and those in the sham-operation+Buyang Huanwu Decoction group and model+Buyang Huanwu Decoction group were given Buyang Huanwu Decoction for 30 days.T2 mapping imaging was used to detect the changes in hippocampal tissue structure,the changes of cerebral blood perfusion in hippocampus were detected by arterial spin labeling imaging,Western blot was used to detect the protein expressions of SYN,GAP-43,glucose transporters and MCT.Results Compared with the sham-operation group,the T2 relaxation time of the right and left hippocampus in the model group rats significantly increased(P<0.01,P<0.001),the blood flow in the right hippocampus was significantly reduced(P<0.05),the protein expressions of SYN,GAP-43,MCT4 and MCT2 in the right hippocampus were significantly decreased(P<0.01,P<0.001),the protein expressions of GLUT1 and GLUT3 in bilateral hippocappal tissue significantly decreased(P<0.05,P<0.01,P<0.001).Compared with the model group,the T2 relaxation time in the right hippocampus of rats in model+Buyang Huanwu Decoction group was significantly reduced(P<0.05),the blood flow in the right hippocampus significantly increased(P<0.05),the protein expressions of SYN,GAP-43,GLUT1 and GLUT3 in bilateral hippocampal tissues significantly increased(P<0.01,P<0.001),and the protein expressions of MCT4 and MCT2 in right hippocampal

关 键 词：补阳还五汤 局灶性脑缺血 海马 神经可塑性 糖代谢转运蛋白 大鼠 

分 类 号：R285.5[医药卫生—中药学]