中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (17): 2713-2719.doi: 10.12307/2022.540

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

2型糖尿病神经源性膀胱大鼠模型的建立与评价

韩栩珂1,2,陈一丁1,2,陈慧臻1,2,杨小梅1,2,洪佩佩1,2,陈  秋1,2   

  1. 1成都中医药大学附属医院,四川省成都市   610072;2成都中医药大学,四川省成都市   610075
  • 收稿日期:2021-03-29 修回日期:2021-05-07 接受日期:2021-09-27 出版日期:2022-06-18 发布日期:2021-12-24
  • 通讯作者: 陈秋,教授,博士生导师,成都中医药大学附属医院,四川省成都市 610072;成都中医药大学,四川省成都市 610075
  • 作者简介:韩栩珂,女,1992年生,陕西省西安市人,汉族,成都中医药大学在读博士,医师,主要从事内分泌代谢性疾病的中西医结合防治基础研究。
  • 基金资助:
    成都市重大科技应用示范项目(2019-YF09-00094-SN):真实世界研究代谢性疾病中西医集合大数据云平台及推广应用,项目及负责人:陈秋;中央医疗服务与保障能力提升补助资金(CYW2019079):重大疑难疾病中西医临床协作项目,项目负责人:陈秋

Establishment and evaluation of neurogenic bladder model in rats with type 2 diabetes mellitus

Han Xuke1, 2, Chen Yiding1, 2, Chen Huizhen1, 2, Yang Xiaomei1. 2, Hong Peipei1, 2, Chen Qiu1, 2   

  1. 1Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China; 2Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
  • Received:2021-03-29 Revised:2021-05-07 Accepted:2021-09-27 Online:2022-06-18 Published:2021-12-24
  • Contact: Chen Qiu, Professor, Doctoral supervisor, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China; Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
  • About author:Han Xuke, MD candidate, Physician, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China; Chengdu University of Traditional Chinese Medicine, Chengdu 610075, Sichuan Province, China
  • Supported by:
    Chengdu Major Science and Technology Application Demonstration Project, No. 2019-YF09-00094-SN (to CQ); Central Medical Service and Guarantee Capability Improvement Subsidy Fund, No. CYW2019079 (to CQ)

摘要:

文题释义:
糖尿病神经源性膀胱:是泌尿系统一种常见的糖尿病性神经病变表现,其主要特征是膀胱感觉神经受损,逼尿肌收缩力降低,膀胱容量和残余尿量增加。其发生发展与糖尿病导致的膀胱周围末梢神经受损、继发的神经细胞凋亡、神经轴突变性、神经纤维脱髓鞘及神经再生修复障碍有关。
评价建模方法的意义:糖尿病神经源性膀胱的发病率不断上升,但其发病机制不明确,相关自然史和生理病理学信息匮乏,科学研究明显落后于糖尿病其他并发症,尚无有效的治疗方法,故给患者生活质量和社会经济都带来了严重的负担。因此,构建一种稳定高效的2型糖尿病神经源性膀胱模型对促进临床治疗手段的筛选极具意义。

背景:2型糖尿病神经源性膀胱的发病率不断上升,但其发病机制不明确,尚无有效的治疗方法,而构建高效稳定的动物模型对其发病机制和治疗手段的研究有重要意义。
目的:建立2型糖尿病神经源性膀胱大鼠模型,并评价其稳定性。
方法:将SD雄性大鼠随机分为正常组(n=10)和模型组(n=45),正常组常规饲料喂养8周;模型组大鼠给予高脂饲料喂养8周,第4周时根据注射链脲佐菌素剂量分为3组(n=15),分别单次腹腔注射20,35,50 mg/kg的链脲佐菌素造模,而正常组大鼠注射等剂量的柠檬酸缓冲液。在 0,4,8 周进行一般情况观察,记录体质量和血糖;第8周检测各组大鼠的尿流动力学指标及膀胱湿质量,并通过苏木精-伊红染色观察膀胱的组织学变化。
结果与结论:①高脂饮食结合单次腹腔注射链脲佐菌素35 mg/kg组大鼠存活率较高,成模率较稳定(80%);②与正常组大鼠相比,链脲佐菌素35 mg/kg组大鼠膀胱容量和残余尿量增多,膀胱内压减小,膀胱湿质量及顺应性升高,差异均有显著性意义(P ≤ 0.05);③提示高脂饮食8周结合35 mg/kg链脲佐菌素单次腹腔注射是建立2型糖尿病神经源性膀胱大鼠模型的最佳方法。
缩略语:糖尿病神经源性膀胱:diabetic neurogenic bladder,DNB

https://orcid.org/0000-0001-8941-3386 (韩栩珂) 

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: 链脲佐菌素, 2型糖尿病, 神经源性膀胱, 尿流动力学, 高脂饮食

Abstract: BACKGROUND: The incidence of neurogenic bladder in type 2 diabetes is increasing. However, its pathogenesis is not clear and there is no effective treatment method. It is of great significance to construct an efficient and stable animal model for the study on its pathogenesis and treatment methods. 
OBJECTIVE: To establish a rat model of neurogenic bladder in type 2 diabetes mellitus. 
METHODS: Male Sprague-Dawley rats were divided randomly into control (n=10) and model (n=45) groups. Control group was given 8-week normal diet, and model group was given 8-week high fat diet. At the 4th week of high-fat diet, the model rats were randomly divided into three groups (n=15 per group) followed by single intraperitoneal injection of 20, 25, and 50 mg/kg streptozotocin respectively. The control group was treated with the equal amount of sodium citrate buffer. The general condition was observed, and the body mass and blood glucose level were recorded at 0, 4, and 8 weeks. At the 8th week, urodynamic parameters and bladder wet weight were detected, and histological changes of the bladder were observed using hematoxylin-eosin staining. 
RESULTS AND CONCLUSION: High-fat diet combined with single intraperitoneal injection of streptozotocin (35 mg/kg) had higher survival rate and successful modeling rate (80%). Compared with the control group, the bladder capacity and residual urine volume increased, the maximum bladder pressure decreased, the wet weight and compliance of the bladder increased after single intraperitoneal injection of 35 mg/kg streptozotocin (P ≤ 0.05). In conclusion, 8-week high-fat diet combined with single intraperitoneal injection of 35 mg/kg streptozotocin is the best method to establish a rat model of type 2 diabetes mellitus with neurogenic bladder.

Key words: streptozotocin, type 2 diabetes mellitus, neurogenic bladder, urodynamics, high-fat diet

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