葛根汤干预脊髓型颈椎病模型大鼠神经炎症反应和凋亡的作用  

Pueraria lobata decoction intervenes in neuroinflammatory response and apoptosis in rats with cervical spondylotic myelopathy

作　　者：吴迪友 黄家俊 陶广义 赵宇 黄俊卿 杨彬 薛云 Wu Diyou;Huang Jiajun;Tao Guangyi;Zhao Yu;Huang Junqing;Yang Bin;Xue Yun(Henan University of Chinese Medicine,Zhengzhou 450000,Henan Province,China;Henan Province Hospital of Traditional Chinese Medicine,Second Affiliated Hospital of Henan University of Chinese Medicine,Zhengzhou 450000,Henan Province,China)

机构地区：[1]河南中医药大学,河南省郑州市450000 [2]河南省中医院/河南中医药大学第二附属医院,河南省郑州市450000

出　　处：《中国组织工程研究》2025年第20期4249-4257,共9页Chinese Journal of Tissue Engineering Research

基　　金：河南省中医药科学研究专项项目(2019JDZX095),项目负责人:黄俊卿;河南省中医药科学研究专项项目(2024ZY2066),项目负责人:杨彬。

摘　　要：背景:炎症和细胞凋亡在脊髓型颈椎病病理过程中起着关键作用。既往研究表明葛根汤对脊髓型颈椎病有着良好的治疗效果。目的:探讨葛根汤对脊髓型颈椎病大鼠神经炎症反应和细胞凋亡的影响及作用机制。方法:60只SD大鼠随机分为正常组、假手术组、模型组、葛根汤低、中、高剂量组,采用吸水膨胀材料压迫脊髓的方法构建脊髓型颈椎病模型,术后2周给予4.86,9.72,19.44 g/kg葛根汤灌胃,其余组则灌胃生理盐水,每日1次,持续4周。在给药后第1,7,14,21,28天对大鼠进行运动功能评价(BBB评分);在给药4周后采用苏木精-伊红染色观察脊髓组织病理形态变化,免疫荧光双染检测脊髓组织小胶质细胞极化情况,荧光定量PCR检测脊髓组织中白细胞介素6和白细胞介素1β mRNA表达,Western blot法检测脊髓组织中p-NF-κB p65、NF-κB p65、NLRP3、ASC、Cleaved Caspase-1、Bax、Bcl-2、Cleaved Caspase-3、NOX4、p-Drp1、Drp1和Mfn2蛋白表达,TUNEL法检脊髓组织细胞凋亡情况,DHE染色检测脊髓组织中活性氧水平。结果与结论:(1)与正常组、假手术组比较,模型组大鼠BBB评分降低(P <0.05),脊髓神经元皱缩畸形,呈空泡样改变;与模型组比较,葛根汤低、中、高剂量组大鼠BBB评分升高(P <0.05),且脊髓神经元损伤明显改善;(2)与正常组、假手术组比较,模型组脊髓组织中Iba-1和诱导型一氧化氮合酶蛋白表达升高(P <0.05),白细胞介素6和白细胞介素1β mRNA表达升高(P <0.05);与模型组比较,葛根汤低、中、高剂量组脊髓组织中Iba-1、诱导型一氧化氮合酶、p-NF-κB、NLRP3、ASC和cleaved Caspase-1蛋白表达以及白细胞介素6和白细胞介素1βmRNA表达降低(P <0.05);(3)与正常组、假手术组比较,模型组脊髓组织中TUNEL阳性细胞率以及Bax、Cleaved Caspase-3蛋白表达升高(P <0.05),而Bcl-2蛋白表达降低(P <0.05);与模型组比较,葛根汤低、中、高剂量组上述指标显著�BACKGROUND:Inflammation and apoptosis play key roles in the pathological process of cervical spondylotic myelopathy.Previous studies have shown that Pueraria lobata decoction has favorable therapeutic effects on cervical spondylotic myelopathy.OBJECTIVE:To investigate the effects and mechanism of Pueraria lobata decoction in neuroinflammatory response and apoptosis in rats with cervical spondylotic myelopathy.METHODS:Sixty Sprague-Dawley rats were randomly divided into six groups:a normal group,a sham-operated group,a model group,and three groups that received low,medium,and high doses of Pueraria lobata decoction.An animal model of cervical spondylotic myelopathy was constructed through compression of the spinal cord with water-absorbing and expanding material.Gastric administration of Pueraria lobata decoction(4.86,9.72,and 19.44 g/kg)was given in the three Pueraria lobata decoction groups 2 weeks after surgery,and the resting groups were given saline by gavage,once daily for 4 weeks.Motor function evaluation(Basso-Beattie-Bresnahan score)was performed in rats on days 1,7,14,21 and 28 after drug administration.At 4 weeks after drug administration,hematoxylin-eosin staining was used to observe the pathomorphologic changes in spinal cord tissue;immunofluorescence double staining was used for the detection of microglial cell polarization in spinal cord tissue;quantitative fluorescence PCR was used to detect the changes in the expression of interleukin-6 and interleukin-1βmRNA;western blot assay was used to detect the protein expression of p-NF-κB p65,NF-κB p65,NLRP3,ASC,Cleaved Caspase-1,Bax,Bcl-2,Cleaved Caspase-3,NOX4,p-Drp1,Drp1,and Mfn2 in spinal cord tissues;TUNEL assay was used to detect apoptosis in spinal cord tissues;and DHE staining was used to detect reactive oxygen species levels in rat spinal cord tissues.RESULTS AND CONCLUSION:(1)Compared with the normal and sham-operated groups,reduced Basso-Beattie-Bresnahan scores were observed in the model group(P<0.05),spinal cord neurons were crumpled and ma

关 键 词：葛根汤 脊髓型颈椎病 脊髓组织 小胶质细胞 细胞凋亡 炎症 NOX4 活性氧 Drp1 工程化组织构建 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] R285