中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (28): 4477-4483.doi: 10.12307/2024.395

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

舒筋健脑方对缺血缺氧脑瘫模型大鼠细胞凋亡的影响

姜  煜1,徐  林1,赵亚林2,刘  港1,张亚奇1,白惠中1,任敬佩1,曾  杰3,穆晓红1   

  1. 1北京中医药大学东直门医院,北京市  100007;2北京市丰台康复医院,北京市  100161;3重庆市中医院,重庆市  400011
  • 收稿日期:2023-05-30 接受日期:2023-07-04 出版日期:2024-10-08 发布日期:2023-11-27
  • 通讯作者: 穆晓红,博士,教授,主任医师,北京中医药大学东直门医院,北京市 100007
  • 作者简介:姜煜,女,1999年生,山东省青岛市人,汉族,北京中医药大学在读硕士,主要从事中西医结合骨伤、脑性瘫痪的研究。
  • 基金资助:
    北京市自然科学基金面上项目(7222281),项目负责人:穆晓红

Effects of Shujin Jiannao Prescription on cell apoptosis in rats with hypoxic-ischemic brain injury

Jiang Yu1, Xu Lin1, Zhao Yalin2, Liu Gang1, Zhang Yaqi1, Bai Huizhong1, Ren Jingpei1, Zeng Jie3, Mu Xiaohong1   

  1. 1Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; 2Fengtai Rehabilitation Hospital of Beijing Municipality, Beijing 100161, China; 3Chongqing Traditional Chinese Medicine Hospital, Chongqing 400011, China
  • Received:2023-05-30 Accepted:2023-07-04 Online:2024-10-08 Published:2023-11-27
  • Contact: Mu Xiaohong, MD, Professor, Chief physician, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China
  • About author:Jiang Yu, Master candidate, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China
  • Supported by:
    the Natural Science Foundation of Beijing (General Program), No. 7222281 (to MXH)

摘要:


文题释义:

脑性瘫痪:简称“脑瘫”,指在大脑发育未成熟阶段由于早产、难产、窒息及黄疸等原因引起的非进行性脑损伤,主要表现为姿势异常和运动障碍。
细胞凋亡:指为维持内环境稳定,由基因控制的细胞自主有序的死亡。细胞凋亡是主动过程,它涉及一系列基因的激活、表达以及调控等作用,它并不是病理条件下自体损伤的一种现象,而是为更好地适应生存环境而主动争取的一种死亡过程。


背景:围产期缺血缺氧性脑损伤是脑性瘫痪发生的最常见原因之一。舒筋健脑方是北京中医药大学东直门医院骨科治疗脑瘫、改善脑部供血的经验方剂。

目的:探讨舒筋健脑方改善脑性瘫痪缺血缺氧的作用机制。
方法:采用64只新生7 d龄SD大鼠,随机分为6组,对照组、模型组各12只,米诺环素组、舒筋健脑方低、中、高剂量组各10只。除对照组外,其余各组建立新生大鼠缺血缺氧脑瘫模型。造模成功后的药物组大鼠分别进行米诺环素、舒筋健脑方各剂量[4,8,16 g/(kg·d)]灌胃,每日1次,持续1周。给药前后测量各组大鼠的体质量,检测行为学变化,苏木精-伊红染色观察大鼠脑组织海马CA1区组织形态,免疫组化和Western Blot检测大鼠脑组织Bcl-2、Bax、Caspase-3的表达水平。

结果与结论:①体质量:与模型组比较,舒筋健脑方中、高剂量组大鼠体质量得到显著增加(P < 0.05);②行为学:与模型组比较,米诺环素组大鼠有效延长了悬吊时间(P < 0.05),舒筋健脑方中、高剂量组大鼠有效延长了悬吊时间、缩短了倾斜板实验时间、提升了Longa评分(P < 0.05);③组织形态:药物组大鼠脑组织仅少量神经细胞坏死形成,细胞排列较整齐,细胞结构较为完整,只部分细胞核变小;④免疫组化和Western Blot结果:与模型组比较,米诺环素组、舒筋健脑方中、高剂量组Bax和Caspase-3的表达减少(P < 0.05),舒筋健脑方中、高剂量组Bcl-2表达增加(P < 0.05),米诺环素组、舒筋健脑方各剂量组Bcl-2/Bax蛋白表达增加(P < 0.05),蛋白表达量随舒筋健脑方的剂量增加而增加,且舒筋健脑方高剂量组与米诺环素组作用差异无显著性意义(P > 0.05);⑤结果说明,舒筋健脑方治疗缺血缺氧脑瘫大鼠的机制可能是提升抗凋亡蛋白Bcl-2表达,抑制促凋亡蛋白Bax的表达,降低Caspase-3的蛋白表达,最终抑制脑瘫大鼠海马组织细胞凋亡;舒筋健脑方在一定范围内,剂量越高治疗效果越好,且高剂量使用疗效不亚于米诺环素。

https://orcid.org/0009-0002-0186-7231(姜煜)

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: 脑性瘫痪, 舒筋健脑方, 细胞凋亡, 缺血缺氧脑损伤, 大鼠

Abstract: BACKGROUND: Perinatal hypoxic-ischemic brain injury is one of the most common causes of cerebral palsy. Shujin Jiannao Prescription is an experienced formula for treating cerebral palsy and improving blood supply to the brain developed by the Dongzhimen Hospital, Beijing University of Chinese Medicine.
OBJECTIVE: To explore the possible mechanism of Shujin Jiannao Prescription in treating hypoxic-ischemic cerebral palsy. 
METHODS: Sixty-four 7-day-old Sprague-Dawley rats were randomly divided into six groups. There were 12 rats in each of the control and model groups as well as 10 animals in each of the minocycline group, and the low-, medium-, and high-dose groups of Shujin Jiannao Prescription. The neonatal rat ischemic-hypoxic cerebral palsy model was established in all groups except for the control group. After successful modeling, rats in each drug group were respectively gavaged with minocycline and Shujin Jiannao Prescription at a dose of 4, 8, and 16 g/kg per day for 1 week. Body mass of rats was measured and behavioral changes were detected before and after drug administration. Hematoxylin-eosin staining was used to observe the histomorphology of hippocampal CA1 region of rat brain tissue, and immunohistochemistry and western blot were used to detect the expression levels of Bcl-2, Bax, and Caspase-3 in the brain tissue of rats.
RESULTS AND CONCLUSION: Compared with the model group, medium- and high-dose Shujin Jiannao Prescription significantly increased the body mass of rats (P < 0.05). Compared with the model group, minocycline effectively prolonged the suspension time of ischemic-hypoxic cerebral palsy rats (P < 0.05), while medium- and high-dose Shujin Jiannao Prescription significantly prolonged the suspension time, shortened the inclined plane test time, and increased the Longa score of rats (P < 0.05). The pathological results showed that after drug intervention, only a small number of neuronal cells in the brain tissue of rats were necrotic, the cells were more neatly arranged, the cell structure was more complete, and only part of the cell nuclei became smaller. Compared with the model group, minocycline and medium- and high-dose Shujin Jiannao Prescription reduced the expression of Bax Caspase-3 (P < 0.05), medium- and high-dose Shujin Jiannao Prescription increased the expression of Bcl-2 (P < 0.05), and Bcl-2/Bax protein expression was increased in minocycline and three Shujin Jiannao Prescription groups (P < 0.05). In addition, the protein expression was increased in a dose-dependent manner after intervention with Shujin Jiannao Prescription, and there was no significant difference between the minocycline and three Shujin Jiannao Prescription groups (P > 0.05). To conclude, the mechanism by which Shujin Jiannao Prescription treats ischemic-hypoxic cerebral palsy in rats may be to enhance the expression of anti-apoptotic protein Bcl-2, inhibit the expression of pro-apoptotic protein Bax, and reduce the expression of Caspase-3, ultimately inhibiting the apoptosis of hippocampal neuronal cells in rats with cerebral palsy. Within a certain range, the higher dose of Shujin Jiannao Prescription indicates the better therapeutic effect, and the high-dose Shujin Jiannao Prescription is as effective as minocycline.

Key words: cerebral palsy, Shujin Jiannao prescription, apoptosis, hypoxic-ischemic brain injury, rat

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