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ID:32917753
大小:2.56 MB
页数:55页
时间:2019-02-17
《黄连素预处理对去甲肾上腺素诱导大鼠心肌损伤的影响》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、湖北中医药大学硕士学位论文黄连素预处理对去甲肾上腺素诱导大鼠心肌损伤的影响姓名:史丹利申请学位级别:硕士专业:中西医结合临床指导教师:张宏考20120530中文摘要目的:观察黄连素对去甲肾上腺素(NE)诱导的大鼠心肌损伤是否具有保护作用及其量效关系,并初步探讨其可能的机制。方法:本实验采用腹腔注射去甲肾上腺素(3mg/l(g)的方法来制造大鼠心肌损伤的模型。实验分为5组:正常对照组、模型组、黄连素低剂量组(O.1mg/kg.d)、黄连素中剂量组(o.2mg/kg.d)、黄连素高剂量组(o.4mg/kg.d)。造模完毕后
2、4小时采用10%水合氯醛(每0.3ml/1009)腹腔注射麻醉,待大鼠麻醉好后,先用BL.420E生物机能实验系统检测大鼠心功能,再从腹主动脉取血,然后迅速开胸剖取心脏,部分制成心肌组织匀浆,剩余制成石蜡切片,最后行如下的检测:采用电化学发光法测定血清肌钙蛋白T,采用光学显微镜观察HE染色心肌组织,采用ELISA法检测血清肿瘤坏死因子a(xaxrv.Q),采用试剂盒中相应方法检测血清中某些氧化应激指标(SOD、MDA、CAT),采用TUNEL试剂盒测定心肌细胞凋亡率,采用western—blot检测心肌组织中Bcl一2
3、和Bax的蛋白表达,采用分光光度法检测心肌组织中Caspase.3活性,使用皮尔逊相关性分析研究黄连素的量效关系。结果:与正常对照组相比,模型组的LVSP、+dp/dtmax绝对值均下降(P<0.01),而LVEDP升高(尸4、01)、Bcl.2蛋白表达量显著减少俨5、(氏o.01)、Bcl.2蛋白表达量显著增]Jg(P<0.01);心肌组织中Caspase.3活性明显减弱(P6、ctofBerberinePreconditioningonNorepinephrine-InducedMyocardialInjuryinRatsSpeciality:ClinicaldisciplineofChineseandwesternintegrativemedicineAuthor:ShiDanliTutor:ZhangHongkaoObjeetive:AbstractOuraimistoexploretheeffectofBerberineonnorepinephrine(NE)inducedmyocar7、dialinjuryinrats,thepotentialmechanism,andthedoseeffectrelationship.Methods:Inthisstudy,theratmodelofmyocardialinjurywascreatedwithintraperitonealinjectionofnorepinephrine(3mg/kg).SDratswererandomlydividedintofivegroups,includingthenormalcontrolgroup,themodelgro8、up,thelow-doseBerberinegroup(O.1mg/kg.d),themedium—doseBerberinegroup(0.2mg/kg.d),andthehigh—doseBerberinegroup(0.4mg/kg.d).Fourhoursaftermolding,alltheratswereanesth
4、01)、Bcl.2蛋白表达量显著减少俨5、(氏o.01)、Bcl.2蛋白表达量显著增]Jg(P<0.01);心肌组织中Caspase.3活性明显减弱(P6、ctofBerberinePreconditioningonNorepinephrine-InducedMyocardialInjuryinRatsSpeciality:ClinicaldisciplineofChineseandwesternintegrativemedicineAuthor:ShiDanliTutor:ZhangHongkaoObjeetive:AbstractOuraimistoexploretheeffectofBerberineonnorepinephrine(NE)inducedmyocar7、dialinjuryinrats,thepotentialmechanism,andthedoseeffectrelationship.Methods:Inthisstudy,theratmodelofmyocardialinjurywascreatedwithintraperitonealinjectionofnorepinephrine(3mg/kg).SDratswererandomlydividedintofivegroups,includingthenormalcontrolgroup,themodelgro8、up,thelow-doseBerberinegroup(O.1mg/kg.d),themedium—doseBerberinegroup(0.2mg/kg.d),andthehigh—doseBerberinegroup(0.4mg/kg.d).Fourhoursaftermolding,alltheratswereanesth
5、(氏o.01)、Bcl.2蛋白表达量显著增]Jg(P<0.01);心肌组织中Caspase.3活性明显减弱(P6、ctofBerberinePreconditioningonNorepinephrine-InducedMyocardialInjuryinRatsSpeciality:ClinicaldisciplineofChineseandwesternintegrativemedicineAuthor:ShiDanliTutor:ZhangHongkaoObjeetive:AbstractOuraimistoexploretheeffectofBerberineonnorepinephrine(NE)inducedmyocar7、dialinjuryinrats,thepotentialmechanism,andthedoseeffectrelationship.Methods:Inthisstudy,theratmodelofmyocardialinjurywascreatedwithintraperitonealinjectionofnorepinephrine(3mg/kg).SDratswererandomlydividedintofivegroups,includingthenormalcontrolgroup,themodelgro8、up,thelow-doseBerberinegroup(O.1mg/kg.d),themedium—doseBerberinegroup(0.2mg/kg.d),andthehigh—doseBerberinegroup(0.4mg/kg.d).Fourhoursaftermolding,alltheratswereanesth
6、ctofBerberinePreconditioningonNorepinephrine-InducedMyocardialInjuryinRatsSpeciality:ClinicaldisciplineofChineseandwesternintegrativemedicineAuthor:ShiDanliTutor:ZhangHongkaoObjeetive:AbstractOuraimistoexploretheeffectofBerberineonnorepinephrine(NE)inducedmyocar
7、dialinjuryinrats,thepotentialmechanism,andthedoseeffectrelationship.Methods:Inthisstudy,theratmodelofmyocardialinjurywascreatedwithintraperitonealinjectionofnorepinephrine(3mg/kg).SDratswererandomlydividedintofivegroups,includingthenormalcontrolgroup,themodelgro
8、up,thelow-doseBerberinegroup(O.1mg/kg.d),themedium—doseBerberinegroup(0.2mg/kg.d),andthehigh—doseBerberinegroup(0.4mg/kg.d).Fourhoursaftermolding,alltheratswereanesth
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