尿激酶与阿替普酶在大鼠脑出血后血肿纤溶治疗中的作用及机制研究
[Abstract]:Intracerebral hemorrhage (ICH) has the highest mortality and disability rate, and is the most destructive type of stroke. According to a national survey published in 2017, the age-standardized incidence of stroke in China is 246.8/100,000 per year, of which 23.8% is ICH, much higher than in most Western countries. However, the injury mechanism of ICH is not yet complete. Clearly, physical compression of hematoma after ICH and formation of secondary perihematomal edema (PHE) can affect the prognosis of patients. Therefore, timely removal of hematoma to reduce primary and secondary injuries is particularly important in ICH treatment. However, craniotomy is not always suitable for patients limited by the site of hematoma and surgical trauma. Compared with traditional surgery, minimally invasive surgery combined with intracavitary injection of fibrinolytic drugs for hematoma has less trauma to normal brain tissue, better curative effect and wider application. In recent years, it has attracted more and more attention and gradually developed into a promising treatment for ICH. TPA can effectively dissolve hematoma. The efficacy of tPA in fibrinolytic therapy of hematoma after ICH has been approved by many clinical trials. However, animal experiments have found that tPA can promote edema formation, increase inflammation and promote neurotoxicity while assisting in the removal of hematoma. The application of intracranial fibrinolytic therapy has been questioned. Urokinase (uPA), as an old fibrinolytic drug, has been widely used in China as fibrinolytic therapy for post-ICH hematoma. However, due to the lack of preclinical or clinical studies on the use of uPA and tPA in fibrinolytic therapy of hematoma after ICH, the choice of drugs still depends on experience. In order to explore the role and mechanism of uPA and tPA in fibrinolytic therapy of hematoma after intracerebral hemorrhage in rats, we used autologous blood injection to induce cerebral hemorrhage model. The first part is to observe the effect of uPA and tPA on the fibrinolytic therapy of hematoma after ICH in rats, including the effect of fibrinolysis and the effect on PHE. The second part is to study the effect and mechanism of uPA and tPA on BBB by detecting the related indexes of blood-brain barrier (BBB). Objective To observe the therapeutic effect of uPA and tPA on hematoma after ICH by intracavitary injection of uPA and tPA. The hematoma volume, PHE range, brain water content (BWC), BBB permeability and animal behavior were measured after 3 days. The patients were divided into 5 groups: sham group, ICH group, ICH + saline group, ICH + tPA group and ICH + uPA group, with 14 rats in each group. 30 minutes after operation, ICH + saline group, ICH + tPA group and ICH + uPA group were given saline, tPA (10 UG / ml), uPA (100 IU / ml), sham group was blank control group, and ICH + tPA group was given only blood injection without administration. After the scan, 8 rats in each group were measured for BWC to evaluate the degree of edema, and the remaining 6 rats were performed Evans blue (EB) exudation test to detect the permeability of BBB. Results 1. Magnetic resonance imaging analysis showed that U. Both intracavitary injection of PA and tPA could effectively reduce the volume and PHE range of hematoma, and uPA could reduce the PHE range more significantly (uPA vs tPA, p0.05). In addition, BWC measurements showed that uPA could reduce the hemispheric water content of the affected side, while there was no significant difference between tPA group and control group. 2. Angle rotation test and forelimb placement test showed that uPA could significantly reduce the PHE range. Conclusion Both uPA and tPA can reduce the volume of hematoma and the range of PHE after ICH in rats. Objective To establish a rat ICH model and observe the expression of BBB-related tight junction protein (claudin-5, ZO-1) and matrix metalloproteinases (MMPs) after administration. Methods The experimental animals were randomly divided into three groups: ICH+saline group, ICH+tPA group and ICH+uPA group, 18 rats in each group. At 30 minutes after operation, saline, tPA (10 ug/ml) and uPA (100 IU/ml) of 2 UG volume were given to the hematoma center. On the third day after operation, BBB correlation was detected by immunofluorescence staining in the experimental animals (5/group). The expression of compact protein (ZO-1, Claudin-5) was compared quantitatively by Western blot (WB), real-time polymerase chain reaction (RT-PCR) and real-time polymerase chain reaction (RT-PCR), and the levels of pingp65 and phosphorylated p65 (p-p65) were detected by WB (5/group), respectively. Results 1. By detecting the expression of ZO-1 around hematoma (immunofluorescence, WB) and claudin-5 immunostaining around hematoma and edema area cortex, it was found that uPA and tPA could up-regulate the expression of these two BBB-related tight junction proteins, suggesting that the two drugs have a positive effect on maintaining the integrity of BBB. 2. RT-PCR and WB results were obvious. In addition, uPA also decreased the expression of MMP-2, but the effect of tPA on the expression of MMP-2 was not significant. For MMP-9, the administration of tPA increased the expression of MMP-2, and the up-regulation effect of tPA was more obvious. 3. The ratio of p-p65/p65 calculated by WB results indirectly reflected the activation of NF-kappa B pathway. It was found that tPA treatment made the activation of NF-kappa B pathway. Conclusion Although the activation of NF-kappa B pathway is different between uPA and tPA injection in ICH rats, the expression of MMPs is different. On the whole effect, both drugs have a certain protective effect on the integrity of BBB.
【学位授予单位】:第三军医大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:R743.34
【相似文献】
相关期刊论文 前10条
1 戴丽;沈兆亮;高爽;;阿替普酶治疗急性缺血性脑卒中的疗效观察[J];中国现代药物应用;2014年06期
2 颜滢;黄晨;姚科;;注射用阿替普酶致颅内出血1例[J];中国药物警戒;2010年11期
3 海燕;;名刊[J];中国处方药;2008年10期
4 陈学东;王中华;田磊;杨晓冬;王世华;王育红;;阿替普酶治疗下肢深静脉血栓形成的临床研究[J];中国普通外科杂志;2011年12期
5 张世江;;小剂量阿替普酶治疗老老年急性心肌梗死的疗效[J];实用药物与临床;2011年06期
6 杜菲;;阿替普酶直接给药以溶解腿部血栓[J];心血管病防治知识(科普版);2012年03期
7 金秉祥;;急性缺血性脑卒中阿替普酶溶栓预后影响因素临床研究[J];中国卫生产业;2013年26期
8 阙俐,吴伟;可与阿替普酶媲美的新型血栓溶解药[J];国外医药(合成药 生化药 制剂分册);2000年04期
9 邓晓丽;张艺;;10例肺栓塞病人应用阿替普酶溶栓治疗的护理[J];全科护理;2013年28期
10 高志红;宁鸿珍;;阿替普酶静脉溶栓治疗急性脑梗死效果观察及护理对策[J];临床合理用药杂志;2014年04期
相关会议论文 前10条
1 林芳芳;;阿替普酶治疗1例急性脑梗死患者的护理体会[A];2012年河南省急诊新业务、新视角、新理念及规范化管理研讨会论文集[C];2012年
2 黄瑾;周博;鲁静;;阿替普酶治疗下肢深静脉血栓的护理体会[A];中华护理学会第8届全国造口、伤口、失禁护理学术交流会议、全国外科护理学术交流会议、全国神经内、外科护理学术交流会议论文汇编[C];2011年
3 黄瑾;周博;鲁静;;阿替普酶治疗糖尿病患者下肢深静脉血栓的护理体会[A];全国内科护理学术交流会议、全国心脏内、外科护理学术交流会议、第9届全国糖尿病护理学术交流会议、第9届全国血液净化护理学术交流会议论文汇编[C];2011年
4 王淑荣;;脑出血基础与临床研究的新进展[A];2009年全国微循环与血液流变学基础研究及临床应用学术研讨会专题报告及论文集[C];2009年
5 张在强;潘树茂;修春明;汤国太;王云波;陈鸿光;边玉松;李新钢;;人骨髓间充质干细胞移植治疗脑出血的实验研究[A];中华医学会神经外科学分会第九次学术会议论文汇编[C];2010年
6 杨树旭;钱冲;李晓斌;石磊;宋正飞;王义荣;;脑出血后神经细胞再生的研究[A];2006年浙江省神经外科学术会议论文汇编[C];2006年
7 王玉波;吴珊;;睾酮与脑出血后肺损伤的相关性研究[A];贵州省医学会第八届神经病学年会论文集[C];2010年
8 韦红巧;李倩茗;;大鼠急性脑出血对肝脏和肾脏的影响[A];中国神经科学学会第六届学术会议暨学会成立十周年庆祝大会论文摘要汇编[C];2005年
9 杨树旭;钱聪;亓旭晨;叶红星;方兵;李新伟;牛焕江;孙伟军;朱先理;王义荣;;促红细胞生成素治疗脑出血的实验研究[A];2009年浙江省神经外科学术年会论文汇编[C];2009年
10 李萍;盛志业;;氧化低密度脂蛋白在人肾小球系膜细胞表达基质金属蛋白酶过程中的作用[A];2006年中华医学会糖尿病分会第十次全国糖尿病学术会议论文集[C];2006年
相关重要报纸文章 前10条
1 徐蜀远;溶栓药物的研究进展(下)[N];中国医药报;2001年
2 阮文;南大尿激酶:英雄出海,再战江湖[N];医药经济报;2008年
3 张献怀;打通血脑屏障 治疗髓母细胞瘤[N];健康报;2007年
4 记者 刘霞;美找到可突破血脑屏障的分子[N];科技日报;2011年
5 张巍巍;人体干细胞首次制成血脑屏障模块[N];科技日报;2012年
6 记者 刘霞;神经药物首次突破血脑屏障[N];科技日报;2011年
7 金伟秋 译;微纤溶酶有望用于治疗眼后部疾病[N];中国医药报;2009年
8 孙国根邋仇逸;纳米载药研究启动,“血脑屏障”有望攻破[N];新华每日电讯;2007年
9 孙国根邋仇逸;纳米载药研究有望攻克“血脑屏障”难题[N];医药经济报;2007年
10 赵红梅 刘新峰;有望避开血脑屏障[N];中国中医药报;2004年
相关博士学位论文 前10条
1 朱子龙;芬戈莫德联合阿替普酶治疗急性缺血性脑卒中探究性研究[D];天津医科大学;2016年
2 林念童;急性缺血性脑卒中阿替普酶溶栓预后影响因素临床研究[D];南方医科大学;2012年
3 张玉海;神经导航穿刺血肿清除及MRI神经传导束成像对HPH运动功能恢复的影响[D];青岛大学;2016年
4 周翔;脑出血后CD47表达及其作用的实验研究[D];复旦大学;2013年
5 张清华;人脐带间充质干细胞移植对脑出血后细胞凋亡的影响[D];山东大学;2015年
6 蔡萍;重组ADAMTS13对脑出血后脑损伤和脑水肿的作用机制研究[D];复旦大学;2014年
7 解文菁;CD163对脑出血血肿及灶周组织的影响变化及其机制[D];吉林大学;2016年
8 朱军;靶向AQP4的RNAi对大鼠脑出血周围细胞凋亡影响[D];青岛大学;2016年
9 阳光;铁调素对脑出血后铁代谢及神经功能预后影响的研究[D];第三军医大学;2016年
10 陈敏;骨髓间充质干细胞对大鼠脑出血后血脑屏障的保护作用及机制研究[D];南方医科大学;2016年
相关硕士学位论文 前10条
1 谭强;尿激酶与阿替普酶在大鼠脑出血后血肿纤溶治疗中的作用及机制研究[D];第三军医大学;2017年
2 陈川;阿替普酶与尿激酶静脉溶栓治疗急性缺血性脑卒中疗效和安全性的Meta分析[D];广西医科大学;2016年
3 彭博;尿激酶及阿替普酶治疗急性脑梗死疗效及安全性的比较研究[D];大连医科大学;2014年
4 梁晶;阿替普酶与巴曲酶治疗急性脑梗死的疗效及安全性比较研究[D];吉林大学;2015年
5 刘备;阿替普酶辅助微创术治疗脑出血的临床观察[D];重庆医科大学;2014年
6 崔悦;阿替普酶治疗急性脑梗死的疗效观察[D];天津医科大学;2014年
7 何建丽;微创血肿穿刺引流术治疗高血压脑出血的临床研究[D];南方医科大学;2016年
8 范铁平;微创血肿抽吸对实验性脑出血脑组织损伤的影响[D];大连医科大学;2006年
9 崔颖;阿替普酶静脉溶栓治疗的急性缺血性卒中患者早期神经功能恶化的影响因素[D];华北理工大学;2017年
10 林艳;阿替普酶对急性脑梗死大鼠超时间窗静脉溶栓的疗效评价[D];山东大学;2014年
,本文编号:2211662
本文链接:https://www.wllwen.com/yixuelunwen/shenjingyixue/2211662.html