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1、EffectsofestrogenonTlymphocytedifferentiationafterovariectomizedratRIRIADissertationSubmittedtoShiheziUniversityInPartialFulfillmentoftheRequirementsfortheDegreeofMasterofMedicineByZhouAo-fei(Surgery)Supervisor:LiYing-longMay,2018摘要目的:观察雌激素对去卵巢雌性SD大鼠肾脏缺血再灌注损伤及T淋巴细
2、胞分化的影响。方法:实验首先使用雌性SD大鼠做去卵巢处理,之后制备大鼠肾缺血再灌注损伤模型(给予肾缺血45min再灌注1h)。实验分为四组:正常(Control)组、假手术(Sham)组、缺血再灌注损伤(I/R)组及缺血再灌注雌激素治疗(E2+I/R)组。苏木素-伊红染色(HE)染色观察肾小管损伤程度(paller氏评分),使用全自动生化分析仪测各组大鼠血尿素氮(BUN)和肌酐(Cr)水平,使用流式细胞仪检测各组大鼠外周血中CD3、CD3+CD4+、CD3+CD8+、CD4+IFN-γ及CD4+IL-4细胞的变化,通过酶联
3、免疫吸附实验(ELISA)检测各组大鼠血浆及肾组织IFN-γ和IL-4的含量。结果:与Sham组比较,I/R组肾小管损伤程度增加,BUN、Cr水平、CD3、CD4、CD4+IFN-γ细胞含量及IFN-γ表达水平均升高(P<0.05),CD8、CD4+IL-4细胞含量减少,IL-4表达水平下降(P<0.05);与I/R组相比,E2+I/R组肾小管损伤程度降低,BUN、Cr水平、CD3、CD4、CD4+IFN-γ细胞含量及IFN-γ表达水平均降低(P<0.05),CD8、CD4+IL-4细胞含量增加,IL-4表达升水平高(P<
4、0.05)。结论:雌激素对大鼠肾缺血再灌注损伤具有保护作用。雌激素的保护作用可能与其影响了T淋巴细胞分化及炎症因子的释放有关。关键词:雌激素;肾缺血再灌注损伤;T淋巴细胞;CD3;CD4;CD8;IFN-γ;IL-4论文类型:A(基础研究)IAbstractObjective:Toobservetheeffectsofestrogenonrenalischemia-reperfusioninjuryandTlymphocytedifferentiationafterRIRI.Methods:EightyfemaleSpra
5、gue-Dawleyratsweretreatedwithovariectomybeforeestablishingrenalischemia-reperfusioninjurymodel.Theratswasdividedintofourgroups:Normalgroup,Shamgroup,I/RgroupandE2+I/Rgroup.Hematoxylin-eosin(HE)stainingwasusedtoobserverenaltubularlesions(paller'sscore).Anautomaticb
6、iochemicalanalyzerwasusedtodetectthelevelofbloodureanitrogen(BUN)andcreatinine(Cr).FlowcytometrywasusedtodetectchangesofCD3,CD3+CD4+,CD3+CD8+,CD4+IFN-γ,andCD4+IL-4cellsinperipheralbloodofeachgroup.ELISAwasusedtodetectlevelsofIFN-γandIL-4inplasmaandrenaltissue.Resu
7、lts:ComparedwithShamgroup,thedegreeoftubularinjuryincreased;levelsofBUN,Cr,CD3,CD4,CD4+IFN-γcellsandIFN-γallincreasedinI/Rgroup(P<0.05).ThenumberofCD8,CD4+IL-4cellsandtheexpressionofIL-4decreased(P<0.05).ComparedwithI/Rgroup,tubularinjuryinE2+I/Rgroupdecreased,and
8、thelevelsofBUN,Cr,CD3,CD4,CD4+IFN-γcellsandIFN-γexpressionalldecreased(P<0.05).ThecontentofCD8,CD4+increasedandtheexpressionofIL-4increased(P<0.05).Conc