中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (2): 215-222.doi: 10.3969/j.issn.2095-4344.1974

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

脑心清对脑缺血再灌注损伤模型大鼠的保护机制

闵冬雨1,李红岩2,关  乐1,常  江3,张海宁4,崔馨月5,王  鹏6,曹永刚6   

  1. 1辽宁中医药大学附属医院,辽宁省沈阳市  110032;2沈阳麦迪信科技有限公司,辽宁省沈阳市  110066;3葫芦岛市食品药品检验检测中心,辽宁省葫芦岛市  125000;4沈阳市食品药品监督管理局,辽宁省沈阳市  110001;5辽宁中医药大学16级中医学(5+3)一体化一班,辽宁省沈阳市  110847;6哈尔滨医科大学大庆校区机能实验室,黑龙江省大庆市  163319
  • 收稿日期:2018-11-28 修回日期:2018-12-12 接受日期:2019-04-19 出版日期:2020-01-18 发布日期:2019-12-25
  • 通讯作者: 曹永刚,教授,研究生导师,哈尔滨医科大学大庆校区机能实验室,黑龙江省大庆市 163319
  • 作者简介:闵冬雨,男,1979年生,辽宁省沈阳市人,锡伯族,2012年中国医科大学毕业,博士,硕士生导师,副主任药师,从事心脑血管疾病防治研究工作。
  • 基金资助:
    国家重点基础研究发展计划(973计划)项目(2013CB531704);辽宁中医药大学中医脏象理论及应用国家教育部重点实验室开放基金(zyzx1705);辽宁省科技厅项目(20180551110)

Protective mechanism of Naoxinqing Capsule in rat models of cerebral ischemia/reperfusion injury

Min Dongyu1, Li Hongyan2, Guan Le1, Chang Jiang3, Zhang Haining4, Cui Xinyue5, Wang Peng6, Cao Yonggang6   

  1. 1the Affiliated Hospital of Liaoning University of Traditional Chinese Medicine; 2Shenyang Madison Technology Co., Ltd.; 3Food and Drug Inspection and Testing Center of Huludao; 4Shenyang Food and Drug Administration; 5Liaoning University of Traditional Chinese Medicine; 6Functional Laboratory of Harbin Medical University
  • Received:2018-11-28 Revised:2018-12-12 Accepted:2019-04-19 Online:2020-01-18 Published:2019-12-25
  • Contact: Cao Yonggang, Professor, Master’s supervisor, Functional Laboratory of Harbin Medical University (Daqing), Daqing 163319, Heilongjiang Province, China
  • About author:Min Dongyu, MD, Master’s supervisor, Associate chief pharmacist, the Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang 110032, Liaoning Province, China
  • Supported by:
    the National Program on Key Basic Research & Research Project (973 Program), No. 2013CB531704; the Liaoning University of Traditional Chinese Medicine, Dynamism Theory and Application, National Key Laboratory of the Ministry of Education, No. zyzx1705; the Department of Science and Technology Department of Liaoning Province, No. 20180551110

摘要:

文题释义:

缺血再灌注氧化应激:在脑部缺血再灌注的过程中,脑组织内活性氧浓度增加/抗氧化活性降低,从而积累大量的活性氧,并进一步的诱导中性粒细胞炎性浸润,蛋白酶分泌增加,随之产生大量氧化中间产物,进一步刺激脑组织的损伤。

细胞焦亡:细胞的程序性死亡方式,其主要依赖半胱天冬酶1(caspase-1)发生,当细胞出现焦亡现象时,会有大量的促炎因子释放,相比于细胞凋亡及坏死,细胞焦亡的过程更为剧烈。细胞焦亡会快速的形成质膜孔洞,直接介导细胞肿胀、坏死。并大量释放细胞内容物,并进一步刺激氧化应激反应的发生。其为脑缺血再灌注过程中的重要研究热点之一。

背景:脑心清胶囊用于脑缺血再灌注损伤的治疗由来已久,然而针对其作用机制的深入研究则相对较少。

目的:应用分子生物学手段考察脑心清胶囊对脑缺血再灌注损伤沙鼠模型的治疗作用。

方法:实验方案经辽宁中医药大学动物实验伦理委员会批准(批准号为21000092017072)。将80只雄性蒙古沙鼠随机分为假手术组、模型组、脑心清组及脑络通组,后3组沙鼠应用无创微动脉夹同时夹闭双侧颈总动脉5 min后松开,建立脑缺血再灌注损伤模型;假手术组不夹闭双侧颈总动脉。术后次日开始假手术组正常饲养,模型组灌服同体积的生理盐水,脑心清组按照100 mg/(kg•d)灌胃给药,脑络通组按照100 mg/(kg•d)灌胃给药,连续给药21 d。在实验结束前1周进行水迷宫实验,实验结束后麻醉下处死沙鼠取脑组织。检测沙鼠的学习记忆功能、海马神经元、脑血管及对应的分子变化情况。

结果与结论:①同假手术组相比,模型组沙鼠学习能力显著下降。而脑心清组及脑络通组则可有效提升术后的学习能力下降趋势;②与模型组相比,脑心清组及脑络通组神经元显著增多,且排列较为整齐,细胞轮廓清晰,结构完整;③与模型组相比,脑心清组及脑络通组沙鼠的超氧化物歧化酶和乳酸脱氢酶活性,谷胱甘肽含量显著升高,丙二醛含量显著降低(P < 0.01);④与模型组相比,脑心清组及脑络通组沙鼠海马组织ASC、NLRP3和Caspase-1蛋白表达下调(P < 0.05);⑤与模型组相比,脑心清组及脑络通组沙鼠的白细胞介素18和白细胞介素1β含量明显降低(P < 0.01);⑥与模型组相比,脑心清组及脑络通组沙鼠的血小板内皮细胞黏附分子1阳性细胞明显增多,细胞间连接紧密;⑦与模型组相比,脑心清组及脑络通组沙鼠海马组织血小板内皮细胞黏附分子1和磷酸化内皮型一氧化氮合酶表达显著上调,一氧化氮含量显著升高(P < 0.01);⑧结果说明,脑心清胶囊可有效保护沙鼠的海马CA1区形态;脑缺血再灌注时伴有脑血管功能紊乱,脑心清胶囊可以保护脑血管功能,进而抑制脑缺血再灌注损伤。

ORCID: 0000-0001-6646-9555(闵冬雨)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

关键词: 脑心清胶囊, 脑缺血再灌注, 氧化应激, 炎症, 脑血管功能, 细胞焦亡

Abstract:

BACKGROUND: Naoxinqing capsule has been used for treating cerebral ischemia/reperfusion injury for a long time. However, there are relatively few in-depth studies on its mechanism.

OBJECTIVE: To investigate the therapeutic effect of Naoxinqing Capsule on gerbil model of cerebral ischemia/reperfusion injury by molecular biological means.

METHODS: The study was approved by the Laboratory Animal Ethical Committee of Liaoning University of Chinese Medicine, approval No. 21000092017072. Eighty male Mongolian gerbils were randomly divided into sham, model, Naoxinqing and Naoluotong groups, and the latter three groups underwent bilateral common carotid artery clip for 5 minutes, to establish the model of cerebral ischemia/reperfusion injury. The sham group received no common carotid artery clip. Next day, the sham group fed normally, the model group was given normal saline, Naoxinqing group was given the 100 mg/(kg•d) Naoxinqing via gavage, and Naoluotong group given 100 mg/(kg•d) Naoluotong via gavage, respectively, for 21 consecutive days. The water maze test was conducted at 1 week before experiment ended. The brain tissue was removed after experiment. The learning and memory function, hippocampal neurons, cerebrovascular and corresponding molecular changes were detected.

RESULTS AND CONCLUSION: (1) Compared with the sham group, the learning ability in the model group was decreased significantly. Naoxinqing and Naoluotong groups could effectively improve the learning ability after surgery. (2) Compared with the model group, the numbers of neurons in the Naoxinqing and Naoluotong groups were increased significantly, arranged regularly with clear contour and complete structure. (3) Compared with the model group, in the Naoxinqing and Naoluotong groups, the activities of superoxide dismutase and lactate dehydrogenase, and glutathione content were significantly increased, and the content of malonaldehyde was significantly decreased (P < 0.01). (4) The expression levels of ASC, NLRP3 and Caspase-1 in the hippocampus in the Naoxinqing and Naoluotong groups were significantly lower than those in the model group (< 0.05). (5) The levels of interleukin-18 and interleukin-1β in the Naoxinqing and Naoluotong groups were significantly lower than those in the model group (P< 0.01). (6) Compared with the model group, the cells positive for platelet endothelial cell adhesion molecule-1 in the Naoxinqing and Naoluotong groups were significantly increased, the cells contacted closely each other. (7) Compared with the model group, in the Naoxinqing and Naoluotong groups, the expression levels of platelet endothelial cell adhesion molecule-1 and phosphorylated endothelial nitric oxide synthase were significantly up-regulated, and the content of nitric oxide was significantly increased (P < 0.01). (8) These results indicate that Naoxinqing and Naoluotong can effectively protect the morphology of hippocampal CA1 region in gerbils. Cerebral ischemia/reperfusion injury is accompanied by cerebral vascular dysfunction. Naoxinqing Capsule can protect cerebral vascular function and inhibit cerebral ischemia/reperfusion injury.

Key words: Naoxinqing capsule, cerebral ischemia/reperfusion, oxidative stress, inflammation, cerebrovascular function, cell apoptosis

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