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时间:2018-11-18
《热盐水致大鼠萎缩性胃炎血清和胃黏膜组织sod和tac的变化》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、热盐水致大鼠萎缩性胃炎血清和胃黏膜组织SOD和TAC的变化作者:江梅,张沥,海春旭,秦绪军,陶梅,张玲霞,曹广州【关键词】萎缩性胃炎AlterationsofSODandTACinserumandgastricmucosaofatrophicgastritisratcausedbyhighsalthoticvariationofsuperoxidedismutase(SOD)andtotalantioxidantcapacity(TAC)intheprocessofatrophicgastritisformationcausedbyoversaltyhot
2、diet.METHODS:Theatrophicgastritisratmodeladebyfeeding150g/Lsaltyalcontrolandgastricmucosaucosaicroscope.TheSODprovedmuriaticacidhydroxylaminemethod,thetotalalbumencontentofstomachhomogenateethodandTACucosainratsfedandgastricmucosahadaperfecttimeeffectrelationinhotsalteprolonged,th
3、eSODandTACdecreasedsignificantlyinhotsaltnificationplaysanimportantprecursoryroleintheformationandevolutionofatrophicgastritis. 【Keyutase,SOD)和总抗氧化力(totalantioxidantcapacity,TAC)的动态变化,以探讨活性氧损伤与萎缩性胃炎发生的关系. 1材料和方法 1.1材料 健康、性成熟的雄性SD大鼠44只7L/kgip麻醉,腹主动脉取血分离血清,同时摘取全胃组织,制成组织匀浆,分别测定血清
4、和组织中SOD,TAC和总蛋白的含量.SOD测定采用改良的盐酸羟胺法,样品管取样品20μL,非酶管用三蒸水代替,依次加入75mmol/L,pH=10.2碳酸盐缓冲液2.0mL,3mL/LTritonX1000.3mL,1.2mmol/L盐酸羟胺0.5mL,0.98mmol/LNBT0.1mL,37℃水浴20min,2.0mL甲酸终止反应,560nm比色.总蛋白测定采用Lo. 2结果 2.1大鼠萎缩性胃炎病理改变热盐水灌胃4odelofatrophicgastritisinducedbyhighsalthotanCL,SchaeferLM,OuryTD.
5、Extracellularsuperoxidedismutaseinbiologyandmedicine[J].FreeRadicBiolMed,2003;35(3):236-256. [4]FubiniB,HubbardA.Reactiveoxygenspecies(ROS)andreactivenitrogenspecies(RNS)generationbysilicaininflammationandfibrosis[J].FreeRadicBiolMed,2003;34(12):1507-1516. [5]KochOR,PaniG,Borrel
6、loS,etal.Oxidativestressandantioxidantdefensesinethanolinducedcellinjury[J].MolAspectsMed,2004;25(12):191-198. [6]庞战军,周玫,陈瑗.自由基医学研究方法[M].北京:人民卫生出版社,2000:259-271.
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