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ID:37234433
大小:2.03 MB
页数:41页
时间:2019-05-20
《血管生成素1、2在大鼠阿霉素肾病的表达及意义》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、佳本耘大学硕士学位论文中文摘要目的:肾病综合征临床以大量蛋白尿为主要特征,病理都有肾小球脏层细胞(即足细胞)的损伤,越来越多的研究证实,足细胞的损伤,可促进肾小球硬化。本实验旨在探讨在大鼠。肾小球硬化过程中,内源性血管生成素(Angiopoietins,Ang)的异常变化及其病理作用。方法:选择64只健康、平均体重为150—2009Wister大鼠,雌雄各半,均来自佳木斯大学动物实验中心,随机分二组(1)肾病组32只。(2)对照组32只。肾病组大鼠造模方法如下:采用阿霉素(ADR)诱导造模,ADR稀释2mg/ml(生理盐水),用水合氯醛麻醉大鼠,行右侧肾脏
2、摘除7d后,按每只鼠给予ADR7.5mg/kg~次性尾静脉注射。所有大鼠均标准化饲养房笼子喂养,自由摄取标准饲料和水。对照组正常喂养。在给药后1、2、4及7周分别处死实验组和对照组大鼠各8只。处死前三天置代谢笼中使鼠适应环境,留取处死前244,时尿后宰杀大鼠,常规生化方法测定大鼠24小时尿蛋白定量及血脂、肾功能等生化指标。处死后经腹主动脉灌注生理盐水后摘取肾脏,采用逆转录聚合酶链式反应技术(reversetranscription-polymerisechainreaction,RT—PCR)检测肾组织Angl信使RNA(Ang—lmRNA)、Ang一2m
3、RNA表达。结果:(1)ADR注射后第2周开始出现大量蛋白尿(P4、论:l、阿霉素肾病(AN)大鼠肾脏在肾小球硬化过程中存在内源性Ang的异常变化,Ang-1表达下调伴有Ang一2表达上调,这些改变可能是机体适应代偿机制。2、AN大鼠肾脏毛细血管破坏与内源性Ang的表达有关,Ang一1和Ang一2表达失衡参与肾小球的硬化进程。3、Ang在肾小球局部表达水平的变化参与了介导尿蛋白的排泄增多,这些改变与足细胞的损伤有关。关键词:阿霉素肾病;肾小球硬化:内源性血管生成素;血管生成ABSTRACTObjective:Majorfeatureofnephroticsyndromeisalargenumberofproteinuria5、.Therenalglomerulusmesodermcell(i.e.podocyte)isdamageinpathology,moreandmorestudiesconfn-mthatthedamagecellspromoteglomerulosclerosis.ThisstudyiStoexploretheprocessoftheratglomerulosclerosis,theabnormalchangeofendogenous‘angiogenesisandandpathologicalchanges.Methods:HealthyWisterr6、ats64.·theaveragebodyweightofHealthyWisteris150.200g.fromtheUniversityofJiamusiAnimalExperimentalCenteranddividedintotwogroupsinrandom(1)Nephropathygroup32.(2)Thecontrolgroup32.Modelingmethodsofnephropathyinratareasfollows:ratsareanesthetizedwithChloralHydrate,therightkidneysofrat7、sarcremoved.Adriamycin(ADR)一inducednephroticratmodelswereestablishedsingleinjectionof7.5mg/kgadriamycinviathetailvein.(ADRdilutionof2mg/mlnormalsaline)after7d.AIlratswerekeptinstandardcagestobefedandwaterwithstandardfeed.Thecontrolgroupisfedwithnormalfeeding.8ADRratsand8controlrat8、sweresacriricedat1、2、4and7weeksaf
4、论:l、阿霉素肾病(AN)大鼠肾脏在肾小球硬化过程中存在内源性Ang的异常变化,Ang-1表达下调伴有Ang一2表达上调,这些改变可能是机体适应代偿机制。2、AN大鼠肾脏毛细血管破坏与内源性Ang的表达有关,Ang一1和Ang一2表达失衡参与肾小球的硬化进程。3、Ang在肾小球局部表达水平的变化参与了介导尿蛋白的排泄增多,这些改变与足细胞的损伤有关。关键词:阿霉素肾病;肾小球硬化:内源性血管生成素;血管生成ABSTRACTObjective:Majorfeatureofnephroticsyndromeisalargenumberofproteinuria
5、.Therenalglomerulusmesodermcell(i.e.podocyte)isdamageinpathology,moreandmorestudiesconfn-mthatthedamagecellspromoteglomerulosclerosis.ThisstudyiStoexploretheprocessoftheratglomerulosclerosis,theabnormalchangeofendogenous‘angiogenesisandandpathologicalchanges.Methods:HealthyWisterr
6、ats64.·theaveragebodyweightofHealthyWisteris150.200g.fromtheUniversityofJiamusiAnimalExperimentalCenteranddividedintotwogroupsinrandom(1)Nephropathygroup32.(2)Thecontrolgroup32.Modelingmethodsofnephropathyinratareasfollows:ratsareanesthetizedwithChloralHydrate,therightkidneysofrat
7、sarcremoved.Adriamycin(ADR)一inducednephroticratmodelswereestablishedsingleinjectionof7.5mg/kgadriamycinviathetailvein.(ADRdilutionof2mg/mlnormalsaline)after7d.AIlratswerekeptinstandardcagestobefedandwaterwithstandardfeed.Thecontrolgroupisfedwithnormalfeeding.8ADRratsand8controlrat
8、sweresacriricedat1、2、4and7weeksaf
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