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时间:2020-05-03
《大鼠非酒精性脂肪肝形成过程中肝脏蛋白质组动态变化的研究-论文.pdf》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、第24卷第21期中国现代医学杂志Vo1.24No.2l2014年7月ChinaJournalofModernMedicineJu1.2014文章编号:1005—8982(2014)21—0026—07·论著·大鼠非酒精性脂肪肝形成过程中肝脏蛋白质组动态变化的研究术金玲凤,刘小伟,卢放根,吴小平,欧阳春晖(中南大学湘雅二医院消化内科,湖南长沙410011)摘要:目的研究非酒精性脂肪肝(NAFLD)形成和发展过程中不同阶段的蛋白质谱变化,寻找相关功能蛋白质分子,为治疗新靶点的研究提供依据。方法通过高脂饮食饲养,
2、形成非酒精性脂肪肝病的SD大鼠模型,并观察不同时间肝脏的病理特征;对不同实验阶段大鼠肝脏总蛋白进行蛋白质组学分析,找出差异蛋白质并分析其在非酒精性脂肪肝形成过程中的作用。结果病理学改变:高脂组SD大鼠肝细胞脂肪变性程度、LEE指数较普通组明显(P3、合症患者NAFLD的肝脏病理学改变;高脂饮食小鼠肝内蛋白质组学随着肝内脂肪的聚集,其抗氧化能力逐渐减弱,清除内源醛基化产物的能力逐渐增加,物质代谢向合成代谢方向发展。关键词:高脂饮食;SD大鼠;非酒精性脂肪肝;蛋白质组中图分类号:R.-332文献标识码:AStudyonchangesofliverproteinprofilingduringtheformationprocessofnonalcoholicfattyliverJINLing-feng,LIUXiao—wei,LUFang-gen,WUXiao4、-ping,OUYANGChun—hui(DepartmentofDigestiveDisease,theSecondXiangyaHospitalofCentralSouthUniversity,Changsha,Hunan410011,P.R.China)Abstract:【objective】Tostudythechangesofliverproteomeprofilingduringthepathogenesisofnonalcoholicfattyliver(NAFLD)andseekforrel5、atedfunctionalproteins,whichcouldbecomenovelbiomarkersfordiagnosisandtherapyofNAFLD.【Methods】EstablishanimalmodelforNAFLDandillustratethepathologicalcharacteristicsofliver.Thetotalliverproteinswereseparatedbytwo—dimensionalgeleletrophoresisatindicateddiffe6、renttimepoints.Proteinexpresseddifferentlywerepickedout,identified,andanalyzedhowtoparticipateinthepathogenesisofNAFLD.【Results】Pathologicalcharacteristics:feedingSDratswithhigh—fatdiet,whichshowedsignificantmoreseverehepatocytesteatosis,LEEIndexthanthecon7、trolofnormalones,cansimulatethemetabolicsyndromepa—tientswithhepaticpathologychangesofNAFLD.Fourkindsofzymoproteinwereeffectivelyidentified:methionineadenosyhransferaseI,alpha,glutathioneS—transferase,mn2、NADHdehydrogenaseandaldehydedehydrogenasefamily9,su8、bfamilyA1.Thefirstthreezymoproteinsweregraduallyreduced,butaldehydedehydrogenaseincreasedalongwiththehighfatdietfeedingtime.【Conclusions】TheSDratmodelinducedbyhigh—fatdietcanmimicthehepaticpathologicalteratio
3、合症患者NAFLD的肝脏病理学改变;高脂饮食小鼠肝内蛋白质组学随着肝内脂肪的聚集,其抗氧化能力逐渐减弱,清除内源醛基化产物的能力逐渐增加,物质代谢向合成代谢方向发展。关键词:高脂饮食;SD大鼠;非酒精性脂肪肝;蛋白质组中图分类号:R.-332文献标识码:AStudyonchangesofliverproteinprofilingduringtheformationprocessofnonalcoholicfattyliverJINLing-feng,LIUXiao—wei,LUFang-gen,WUXiao
4、-ping,OUYANGChun—hui(DepartmentofDigestiveDisease,theSecondXiangyaHospitalofCentralSouthUniversity,Changsha,Hunan410011,P.R.China)Abstract:【objective】Tostudythechangesofliverproteomeprofilingduringthepathogenesisofnonalcoholicfattyliver(NAFLD)andseekforrel
5、atedfunctionalproteins,whichcouldbecomenovelbiomarkersfordiagnosisandtherapyofNAFLD.【Methods】EstablishanimalmodelforNAFLDandillustratethepathologicalcharacteristicsofliver.Thetotalliverproteinswereseparatedbytwo—dimensionalgeleletrophoresisatindicateddiffe
6、renttimepoints.Proteinexpresseddifferentlywerepickedout,identified,andanalyzedhowtoparticipateinthepathogenesisofNAFLD.【Results】Pathologicalcharacteristics:feedingSDratswithhigh—fatdiet,whichshowedsignificantmoreseverehepatocytesteatosis,LEEIndexthanthecon
7、trolofnormalones,cansimulatethemetabolicsyndromepa—tientswithhepaticpathologychangesofNAFLD.Fourkindsofzymoproteinwereeffectivelyidentified:methionineadenosyhransferaseI,alpha,glutathioneS—transferase,mn2、NADHdehydrogenaseandaldehydedehydrogenasefamily9,su
8、bfamilyA1.Thefirstthreezymoproteinsweregraduallyreduced,butaldehydedehydrogenaseincreasedalongwiththehighfatdietfeedingtime.【Conclusions】TheSDratmodelinducedbyhigh—fatdietcanmimicthehepaticpathologicalteratio
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