大鼠移植肝保护管理论文.doc

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1、大鼠移植肝保护管理论文【摘要】目的探讨川芎嗪（TMP）对大鼠移植肝的保护作用。方法参照Delriviere和Kamada等方法建立大鼠肝移植模型，将大鼠随机分为3组：A组（假手术组）、B组（肝移植对照组）和C组（TMP干预组）。采用全自动生化分析仪检测术后血清肝功能(AST、ALT、LDH)水平；应用免疫组化SP法结合病理图像分析仪测定肝组织中Bcl-2、Bax的表达情况；HE染色观察其病理形态学变化。结果（1）C组AST、ALT、LDH明显低于B组（P0.05）。（3）A组无明显病理形态改变，B组术后肝组织出现明显的病理损害，

2、C组病理变化明显减轻。结论TMP可能通过上调Bcl-2或Bcl-2/Bax表达而减轻肝移植体的低温保存再灌注损伤，对供肝有保护作用。【关键词】肝移植；保存再灌注损伤；川芎嗪；Bcl-2；BaxProtectiveeffectoftetramethylpyrazineonlivergraftinratlivertransplantation8学海无涯【Abstract】ObjectiveToinvestigatetheprotectiveeffectoftetramethylpyrazine(TMP)preconditioning

3、onlivergraftinratlivertransplantation.MethodsPerformingtheoperationoflivertransplantationinmaleSprague-DawleyratsreferredtoDelriviereandKamadawithcuffanastomosingmethods，theratswererandomlydividedintothreegroups：Agroup(n=6，shamoperationgroup)，Bgroup(n=30×2，livertrans

4、plantationcontrolgroup)，Cgroup(n=30×2，TMPgroup).Theparametersofliverfunction(AST，ALTandLDH)weretestedbyauto-biochemicalanalyseringroupBandCafterreperfusion0.5h，3h，6h，24h，48hrespectivelyviatheplasmasamples；partofthelivertissuewassampledtodeterminetheexpressionofBcl-2a

5、ndBax.TheparametersingroupAwereexamed3haftertheoperation.TheexpressionofBcl-2andBaxwasdeterminedbyimmunohistochemistytechniquewithpathologicalimaginganalyser.Also，partsoflivertissuesampleswereusedtodetectthehistopathologicchanges.Results（1）ThelevelsofAST，ALTandLDHwer

6、esignificantlydecreasedingroupCcomparedwiththatingroupB（P＜0.01）afterreperfusion0.5h，3h，6h，24h，48hrespectively.（2）TheexpressionofBcl-2weresignificantlyincreasedingroupCcomparedwiththatingroupB（P＜0.01）afterreperfusion0.5h，3h，6hrespectively.ThedifferentexpressionofBaxbe

7、tweengroupCandgroupBwasnonsignificant.（3）ApproximatelynormallymorphologicstructurewasfoundingroupA，someobvioushistopathologicchangesingroupBcouldbeseenmorphologically.ButingroupC，somehistopathologicchangeswerealleviated.ConclusionTMPcanimproveliverfunctionandalleviat

8、ehistopathologicdamageinlivertransplantationinratsduringpreservationandreperfusioninjuryprobablybyup-regulatingtheexpressionofBcl-2