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ID:12805916
大小:17.34 MB
页数:45页
时间:2018-07-19
《禁食对大鼠肝脏缺血再灌注损伤影响论文》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、groupisglucosesupplementedgroup,ratsinthisgroupwithfreeaccesstoa40%glucosesolutiononly.Underetherinhalationanesthesia,theabdomenwasopenedthroughamidlineincisionandlefthepaticbloodvesselwereoccludedwithanontramaticmicrovascularclipinducingischemiao
2、ftheleftlateralandmedianlobes.Blood(2m1)wascollectedfrominferiorvenacavaatthetimeofbeforeischemia,after1hourofischmia,and1hour,8hourafterreperfusionrespectivelyformeasurementofserumalaninetransaminase(ALT),aspartatetransaminase(AST),malonicaldehyde(MD
3、A).Inthemeantime,asmallpieceoflivertissueWasincisedfromTheheartoftheischemiahepaticlobestodeterminehepaticGSHandglycogencontentsrespectively.Paraffinsectionofhepatictissuealsoweremade.Results.ThisstudyfoundtheserumALT.ASTandMDAweresignificantlyhi
4、gherwhilehepaticglutathionewerelowerin4-day-fastedratsthaninfedratswhen1hourischemiaandafterreperfusion(P<0.oi).Feeding4-day-fastedratswith40%glucoseinsteadofwaterelevatedliverglycogenandsignificantlyreducedhepatocellular两uryasmeasuredbyserumALT
5、,ASTlevelat1hourischemia(P<O.01),butthereiSnoeffectwithserumAIJ,AST,MDA,hepaticGSHcontentsduringreperfusionperiod(p>0.05).Lightmicrographsshowedminimalchangs,consistingmainlyofoccasionalhepatocyteswithvacuolizationorballooningatendof1hourischemi
6、aperiodinallliverspecimens.Smallfociofcellnecrosis,areasofhepatocellularvacuolarchange,andmildsinusoidalcongestionwereobservedinallthreegroupsafter1hourreperfusion.Thishistoricalfindingismoreaggravatingtoshowneutrophilrecruitmentafter8hourreperfusion,
7、butthereisnoessentialchange.Inall,thereisnoobviousdifferenceamonglightmicrographsfindingofthreegroupsatthesamephase.Conclusions.Theseresultsshowthatfastingexacerbateshepatocellular^injurywhen1hourischemiaandafterreperfusion,andglucosefeedingisgood
8、forlightenninghcpatocellularinjurywheniscemiabuthaslittlehelpforreperfusioninjury.Thisarticlethinksthathepaticiseemiareperfusioninjuryisacomplicatedmultifactorandmultistageprocess.Whetherfastingforalongtimewould
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