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ID:33782590
大小:4.17 MB
页数:36页
时间:2019-03-01
《糖尿病大鼠心肌组织visfatin的表达及二甲双胍的干预作用》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、遵义医学院硕士学位论文糖尿病大鼠心肌组织Visfatin的表达及二甲双胍的干预作用姓名:苑春雷申请学位级别:硕士专业:内科学指导教师:高琳201205遵义医学院硕士学位论文糖尿病大鼠心肌组织Visfatin的表达及二甲双胍的干预作用糖尿病大鼠心肌组织Vislatin的表达及二甲双胍的干预作用摘要目的探讨糖尿病大鼠心肌组织Visfatin、P13K的表达及二甲双胍的干预作用。方法30只SD大鼠随机分为正常对照组(NC组)、糖尿病组(DM组)、二甲双胍治疗组(M+DM组),NC组普通饲料喂养,其余两组高脂高糖饲料喂养,喂
2、养8周后DM与M+DM组予以40ml/Kg腹腔注射链脲佐菌素(STZ),以空腹血糖(FBG)>16.7mmol/L作为成膜标准,成模后M+DM组大鼠予以二甲双胍300mg/Kg/d灌胃,以FBG<11.1mmol/L为二甲双胍治疗组标准。喂养至14周末,各组测定FBG、游离脂肪酸(FFA)、甘油三酯(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDLC)、空腹胰岛素(FINS),计算胰岛素抵抗指数(HOMA.IR)、胰岛素敏感指数(ISI);RT-PCR测定心肌Visfatin、P13KmRNA的表达;免疫组化测定
3、心肌Visfatin蛋白的表达、HE染色后光镜观察心肌病理变化。结果FBG、FFA、TG、TC、FINS、HOMA.IR在糖尿病大鼠组的水平较正常空白组大鼠显著增高(尸4、5、ocardialAbstractobjectiveToinvestigatetheexpressionoftheusingofmetforminonVisfatin,P13Kinrats’cardiactissueandrelatedresearch.MethodsTirtymaleSprague—Dawleyratsweredividedrandomlyintothreegroups:normalcontrolgroup(NC),diabetesgroup(DM)andmetformintreatgroup(M+D6、M).RatsingroupNCwerefed、析thnormaldietandothergroupswerefedwithhighglucoseandfatdiet.After6weeks,ratsofDMandM+DMgroupwereinjectedstreptozotocin(STZ,40mg/Kg)intraperitoneallytoinduceamodelofdiabetesmellitus(DM).TlleDManimalmodelswereconsideredasSuccesswhenrats’FB7、Gweremorethan16.7mmol/L.FBGofratsingroupM+DMwerecontrolledbyMetforminTablets(300mg/kg.d)viagastricfistulauntilFBGlowerthanl1.1mmol/L.12weekslater,alloftheratsweresacrificed,allgroupsweretakenbloodsampletodetecteFBG、FFA、TG、TC、LDLC、FINS,tocalculateHOMA-IR、ISI.The8、myocardiumofratswereusedtomeasuretheexpressionofVisfatinrnRNAandP13KrnRNA,detecttheexpressionofVisfatinbyimmunohistochemicalanalysis,observethechangeofmyocardialdamagemicros
4、5、ocardialAbstractobjectiveToinvestigatetheexpressionoftheusingofmetforminonVisfatin,P13Kinrats’cardiactissueandrelatedresearch.MethodsTirtymaleSprague—Dawleyratsweredividedrandomlyintothreegroups:normalcontrolgroup(NC),diabetesgroup(DM)andmetformintreatgroup(M+D6、M).RatsingroupNCwerefed、析thnormaldietandothergroupswerefedwithhighglucoseandfatdiet.After6weeks,ratsofDMandM+DMgroupwereinjectedstreptozotocin(STZ,40mg/Kg)intraperitoneallytoinduceamodelofdiabetesmellitus(DM).TlleDManimalmodelswereconsideredasSuccesswhenrats’FB7、Gweremorethan16.7mmol/L.FBGofratsingroupM+DMwerecontrolledbyMetforminTablets(300mg/kg.d)viagastricfistulauntilFBGlowerthanl1.1mmol/L.12weekslater,alloftheratsweresacrificed,allgroupsweretakenbloodsampletodetecteFBG、FFA、TG、TC、LDLC、FINS,tocalculateHOMA-IR、ISI.The8、myocardiumofratswereusedtomeasuretheexpressionofVisfatinrnRNAandP13KrnRNA,detecttheexpressionofVisfatinbyimmunohistochemicalanalysis,observethechangeofmyocardialdamagemicros
5、ocardialAbstractobjectiveToinvestigatetheexpressionoftheusingofmetforminonVisfatin,P13Kinrats’cardiactissueandrelatedresearch.MethodsTirtymaleSprague—Dawleyratsweredividedrandomlyintothreegroups:normalcontrolgroup(NC),diabetesgroup(DM)andmetformintreatgroup(M+D
6、M).RatsingroupNCwerefed、析thnormaldietandothergroupswerefedwithhighglucoseandfatdiet.After6weeks,ratsofDMandM+DMgroupwereinjectedstreptozotocin(STZ,40mg/Kg)intraperitoneallytoinduceamodelofdiabetesmellitus(DM).TlleDManimalmodelswereconsideredasSuccesswhenrats’FB
7、Gweremorethan16.7mmol/L.FBGofratsingroupM+DMwerecontrolledbyMetforminTablets(300mg/kg.d)viagastricfistulauntilFBGlowerthanl1.1mmol/L.12weekslater,alloftheratsweresacrificed,allgroupsweretakenbloodsampletodetecteFBG、FFA、TG、TC、LDLC、FINS,tocalculateHOMA-IR、ISI.The
8、myocardiumofratswereusedtomeasuretheexpressionofVisfatinrnRNAandP13KrnRNA,detecttheexpressionofVisfatinbyimmunohistochemicalanalysis,observethechangeofmyocardialdamagemicros
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