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ID:36471922
大小:1.20 MB
页数:44页
时间:2019-05-11
《DDPH对大鼠心肌缺血再灌注损伤保护作用的实验研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、兰州医学院硕士学位论文DDPH对大鼠心肌缺血再灌注损伤保护作用的实验研究姓名:汪晨净申请学位级别:硕士专业:药理学指导教师:高明堂;吴勇杰2003.4.1兰型堕堂堕堡主兰堡丝墨DDPH对大鼠心肌缺血再灌注损伤保护作用的实验研究摘要目的:观察1一(2,6一二甲基苯氧基)一2一(3,4一二甲氧基苯乙氨基)丙烷盐酸盐(DDPH)对大鼠心肌缺血再灌注损伤的保护作用,并对其可能的保护机制进行研究。方法:Wistar大鼠48只,体重(250±23)g,随机分为假手术组、缺血再灌注组、维拉帕米组、DDPH治疗低、高剂量组。结扎大
2、鼠冠状动脉左前降支(LAD)40min,复灌120min后复制出大鼠心肌缺血再灌注损伤模型。观察DDPH对大鼠心肌梗塞面积、血清心肌酶、氧自由基清除酶及脂质过氧化代谢产物的影响,并在光镜、电镜下对缺血再灌区心肌组织结构进行观察。结果:与缺血再灌注组比较DDPH治疗组能明显缩小大鼠心肌梗塞面积(P3、SH—Px)的抗氧化活性(P<0.05,P4、DDPHON~fYOCARDlALISCHEMIA.REPERFUSl0NIN_兀瓜YrNRATSA8STRACTo秘ective:Toinvestigatetheprotectiveeffectof1一(2,6一dimethylphenoxy)一2一(3,4一dimethoxyphenylethylamino)propanehydrochloride(DDPH)onmyocardialischemiareperfusioninjuryinratsandthemechanismofitsmyocardialprot5、ection。Methods:Wistarrats(n=48),bodyweight(250+23)g,weredividedintofivegroups:Shamoperationgroup,ischemiareperfusion(IR)group,Verapamil(Ver)groupandDDPHtreatedgroups.Myocardialischemiareperfusioninjurymodelswereestablishedbytheligationofleftdescendingcoronarya6、rtery(LAD)for40rainandreperfusionfor120mininrats.TheinfluenceofDDPH0nmyocardialinfarctionsizeWaSobservedandthelevelsofenzymesofmyocardialinserumweremeasured。Theoxygenfreeradicalscavengerenzymesandthecontentsofmalondialdehyde(MDA)inmyocardialandsel-tlmweredeter7、minedandthemyocardialtissuestructurewasobserved兰州医学院硕士学位论文●—●。______________。___-_。_-____。●●_-_____--。。。。。。。。。。-。。---___-___。。。。。’——————————————————Results:ComparedwiththeIRgroup,DDPHcouldsignificantlydiminishmyocardialinfarctionsize(P<0.05,P<0.01),reducethere8、leaseofmyocardialcreatinephosphokinase(CPK),lactatedehydrogenase(LDH)andglutamicoxaloaceticaminotransferase(GOT)(P
3、SH—Px)的抗氧化活性(P<0.05,P4、DDPHON~fYOCARDlALISCHEMIA.REPERFUSl0NIN_兀瓜YrNRATSA8STRACTo秘ective:Toinvestigatetheprotectiveeffectof1一(2,6一dimethylphenoxy)一2一(3,4一dimethoxyphenylethylamino)propanehydrochloride(DDPH)onmyocardialischemiareperfusioninjuryinratsandthemechanismofitsmyocardialprot5、ection。Methods:Wistarrats(n=48),bodyweight(250+23)g,weredividedintofivegroups:Shamoperationgroup,ischemiareperfusion(IR)group,Verapamil(Ver)groupandDDPHtreatedgroups.Myocardialischemiareperfusioninjurymodelswereestablishedbytheligationofleftdescendingcoronarya6、rtery(LAD)for40rainandreperfusionfor120mininrats.TheinfluenceofDDPH0nmyocardialinfarctionsizeWaSobservedandthelevelsofenzymesofmyocardialinserumweremeasured。Theoxygenfreeradicalscavengerenzymesandthecontentsofmalondialdehyde(MDA)inmyocardialandsel-tlmweredeter7、minedandthemyocardialtissuestructurewasobserved兰州医学院硕士学位论文●—●。______________。___-_。_-____。●●_-_____--。。。。。。。。。。-。。---___-___。。。。。’——————————————————Results:ComparedwiththeIRgroup,DDPHcouldsignificantlydiminishmyocardialinfarctionsize(P<0.05,P<0.01),reducethere8、leaseofmyocardialcreatinephosphokinase(CPK),lactatedehydrogenase(LDH)andglutamicoxaloaceticaminotransferase(GOT)(P
4、DDPHON~fYOCARDlALISCHEMIA.REPERFUSl0NIN_兀瓜YrNRATSA8STRACTo秘ective:Toinvestigatetheprotectiveeffectof1一(2,6一dimethylphenoxy)一2一(3,4一dimethoxyphenylethylamino)propanehydrochloride(DDPH)onmyocardialischemiareperfusioninjuryinratsandthemechanismofitsmyocardialprot
5、ection。Methods:Wistarrats(n=48),bodyweight(250+23)g,weredividedintofivegroups:Shamoperationgroup,ischemiareperfusion(IR)group,Verapamil(Ver)groupandDDPHtreatedgroups.Myocardialischemiareperfusioninjurymodelswereestablishedbytheligationofleftdescendingcoronarya
6、rtery(LAD)for40rainandreperfusionfor120mininrats.TheinfluenceofDDPH0nmyocardialinfarctionsizeWaSobservedandthelevelsofenzymesofmyocardialinserumweremeasured。Theoxygenfreeradicalscavengerenzymesandthecontentsofmalondialdehyde(MDA)inmyocardialandsel-tlmweredeter
7、minedandthemyocardialtissuestructurewasobserved兰州医学院硕士学位论文●—●。______________。___-_。_-____。●●_-_____--。。。。。。。。。。-。。---___-___。。。。。’——————————————————Results:ComparedwiththeIRgroup,DDPHcouldsignificantlydiminishmyocardialinfarctionsize(P<0.05,P<0.01),reducethere
8、leaseofmyocardialcreatinephosphokinase(CPK),lactatedehydrogenase(LDH)andglutamicoxaloaceticaminotransferase(GOT)(P
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