摘要
Objective： To investigate the effect and mechanism of electroacupuncture（EA） in the intervention of neurogenic bladder（NB） caused by suprasacral spinal cord injury（SCI）.Methods： The total 60 female Sprague-Dawley（SD） rats were divided into blank group, sham operation group by adopting random number table method, with 12 rats in each group. The remaining rats were made into models through operation, and 24 successful model rats were randomly divided into model group and EA group, with 12 rats in each group. Since the 19 th day after modeling, EA was conducted at ＂Cìliào＂（次髎BL 32）, ＂Zhōngjí＂（中极CV 3）,＂Sānyīnjiāo＂（三阴交SP 6） and ＂Dàzhuī＂（大椎GV 14） in EA group, remaining the needle for 20 min every time. The intervention was performed for once a day, and7 consecutive days were needed. The rest of the three groups were only tied up for the same time. Urodynamics test was conducted after the intervention. The contents of PACAP-38 and PAC1 R of the spinal cord of the injury site were detected by Western blot.Results： Compared with the blank group. there were no significant differences in the bladder capacity,leak point pressure, bladder compliance and PACAP-38 and PAC1 R contents in spinal cord in sham operation group; compared with the sham operation group, the maximum bladder capacity and the bladder compliance in the model group were lower（both P〈0.05）, the leak point pressure was higher（P〈0.05）,the contents of PACAP-38 and PAC1 R were lower（both P〈0.05）; compared with the model group, the maximum bladder capacity and the bladder compliance in the EA group were higher（both P〈0.05）, the leak point pressure was lower（P〈0.05）, the contents of PACAP-38 and PAC1 R were higher（both P〈0.05）.Conclusion： EA at BL 32, CV 3, SP 6 and GV 14 can improve the bladder function of NB rats of suprasacral SCI, and its mechanism may be related to the increase expression of PACAP-38 and PAC1 R protein in the injured spinal cord tissue.
目的:探讨电针治疗骶上脊髓损伤所致的神经原性膀胱的效应及其作用机制。方法:雌性Sprague-Dawley大鼠60只,按随机数表法分为空白组、假手术组,各12只,剩余大鼠造模.取24只成功模型大鼠随机分为模型组和电针组,各12只。手术造模后第19天起,电针组取"次髎""中极""三阴交""大椎"穴进行电针干预,留针20 min,每日1次,连续7d,其余三组仅捆绑相同时间.干预结束后行尿流动力学检测,取损伤部位脊髓组织,Western-blot法检测PACAP-38及PACIR的含量。结果:①与空白组比较,假手术组膀胱最大容量、漏尿点压力、膀胱顺应性及脊髓组织内PACAP-38、PAC1R含量差异无显著性意义;与假手术组比较,模型组膀胱最大容量、膀胱顺应性均较低(均P<0.05),漏尿点压力较高(P<0.05),PACAP-38及PAC1R的含量较低(均P<0.05)。与模型组比较,电针组的膀胱最大容量及膀胱顺应性较高(均P<0.05),漏尿点压力较低(P<0.05),PACAP-38及PAC1R的含量较高(均P<0.05)。结论:电针"次髎""中极""三阴交""大椎"可改善骶上脊髓损伤后神经原性膀胱大鼠膀胱功能,其机制可能与受损脊髓组织中PAC AP-38及PACIR蛋白表达升高有关。
基金
国家自然科学基金资助项目面上项目:No.81473753
湖南省教育厅创新平台开放基金项目:No.17K071
湖南省中医药科研计划项目:No.201704
作者简介
彭咏梅，硕士研究生。邮箱：1050055393@qq．com;通信作者：张泓，教授，博士研究生导师。研究方向：针灸治病机理的研究。邮箱：zh5381271@sina．com
