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时间:2017-12-08
《保护素d1对大鼠全脑缺血再灌注损伤海马caspase-3表达及神经元凋亡的影响》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、南昌大学学报(医学版)2013年第53卷第10期JournalofNanchangUniversity(MedicalSciences)2013,Vo1.53No.1011保护素D1对大鼠全脑缺血再灌注损伤海马Caspase-3表达及神经元凋亡的影响李巧云,张海华,游仁芳(中国人民解放军第一八零医院麻醉科,福建泉州362000)摘要:目的评价保护素D1(PD1)gO大鼠全脑缺血再灌注损伤海马Caspase-3蛋白表达及神经元凋亡的影响。方法将108只健康成年雄性SD大鼠随机分为3组:假手术组(S组,一36)仅游离双侧椎动脉和颈总动脉;脑缺血再灌注损伤组(IR组,n一36)和保护素D1组(
2、P组,一36)采用四血管阻断法建立大鼠全脑缺血再灌注损伤模型。P组于再灌注即刻经侧脑室注入PD1100ng,S组和IR组注入等容量生理盐水。各组分别于再灌注2、6、12、24、48、72h(T~T6)随机取6只大鼠处死,取海马组织,采用Western-blot法和RT-PCR法检测海马Caspase-3蛋白和Caspase-3mRNA表达,采用流式细胞仪检测海马神经元凋亡情况。结果与s组比较,IR组、P组海马Caspase-3蛋白和Caspase-3mRNA表达均上调(P<0.05);与IR组比较,P组海马Caspase-3蛋白和Caspase-3mRNA表达均下调(P3、各时点均未见神经元凋亡,IR组和P组于T。时凋亡率开始上升,T时达峰值,Ts时开始下降,且P组各时点凋亡率均明显低于IR组(P4、ollowingGlobalCerebralIschemia-ReperfusioninRatsLIQiao-yun,ZHANGHai-hua,YOURen-fang(DepartmentofA,zs^s0Zog,the180HospitaloftheChinesePeople’SLiberationArmy,Quanzhou362000,China)ABSTRACT:ObjectiveToinvestigatetheeffectsofprotectinD1(PD1)ontheexpressionofhip—pocampalcaspase-3andneuronalapoptosisfol5、lowingglobalcerebralischemia-reperfusion(I/R)inrats.Methods0nehundredandeighthealthymaleSprague-Dawleyratswererandomlydividedintothreegroups:shamoperationgroup(groupS),globalcerebralI/Rgroup(groupIR)andPD1group(groupP),with36ratsineachgroup.GlobalcerebralI/Rwasproducedby4-vesselocclusiontechnique6、.IngroupP,PD1(100ng)wasinjectedintocerebralventriclesatthemomentofreperfusion.IngroupSandgroupIR,ratsweregiventhesamevolumeofnormalsaline.Sixratsineachgroupwerekilledafter2,6,12,24,48and72hoursofreperfusion(T1一T6),respec—tively.Hippocampaltissueswereobtainedtodetecttheexpressionofcaspase-3protein7、andmR—NAusingWesternblotandRT-PCR。respectively.Neuronalapoptosiswasdeterminedbyflowcytometry.ResultsComparedwithgroupS,theexpressionofhippocampalcaspase-3proteinandmRNAsignificantlyincreasedingroupIRandgroupP(P
3、各时点均未见神经元凋亡,IR组和P组于T。时凋亡率开始上升,T时达峰值,Ts时开始下降,且P组各时点凋亡率均明显低于IR组(P4、ollowingGlobalCerebralIschemia-ReperfusioninRatsLIQiao-yun,ZHANGHai-hua,YOURen-fang(DepartmentofA,zs^s0Zog,the180HospitaloftheChinesePeople’SLiberationArmy,Quanzhou362000,China)ABSTRACT:ObjectiveToinvestigatetheeffectsofprotectinD1(PD1)ontheexpressionofhip—pocampalcaspase-3andneuronalapoptosisfol5、lowingglobalcerebralischemia-reperfusion(I/R)inrats.Methods0nehundredandeighthealthymaleSprague-Dawleyratswererandomlydividedintothreegroups:shamoperationgroup(groupS),globalcerebralI/Rgroup(groupIR)andPD1group(groupP),with36ratsineachgroup.GlobalcerebralI/Rwasproducedby4-vesselocclusiontechnique6、.IngroupP,PD1(100ng)wasinjectedintocerebralventriclesatthemomentofreperfusion.IngroupSandgroupIR,ratsweregiventhesamevolumeofnormalsaline.Sixratsineachgroupwerekilledafter2,6,12,24,48and72hoursofreperfusion(T1一T6),respec—tively.Hippocampaltissueswereobtainedtodetecttheexpressionofcaspase-3protein7、andmR—NAusingWesternblotandRT-PCR。respectively.Neuronalapoptosiswasdeterminedbyflowcytometry.ResultsComparedwithgroupS,theexpressionofhippocampalcaspase-3proteinandmRNAsignificantlyincreasedingroupIRandgroupP(P
4、ollowingGlobalCerebralIschemia-ReperfusioninRatsLIQiao-yun,ZHANGHai-hua,YOURen-fang(DepartmentofA,zs^s0Zog,the180HospitaloftheChinesePeople’SLiberationArmy,Quanzhou362000,China)ABSTRACT:ObjectiveToinvestigatetheeffectsofprotectinD1(PD1)ontheexpressionofhip—pocampalcaspase-3andneuronalapoptosisfol
5、lowingglobalcerebralischemia-reperfusion(I/R)inrats.Methods0nehundredandeighthealthymaleSprague-Dawleyratswererandomlydividedintothreegroups:shamoperationgroup(groupS),globalcerebralI/Rgroup(groupIR)andPD1group(groupP),with36ratsineachgroup.GlobalcerebralI/Rwasproducedby4-vesselocclusiontechnique
6、.IngroupP,PD1(100ng)wasinjectedintocerebralventriclesatthemomentofreperfusion.IngroupSandgroupIR,ratsweregiventhesamevolumeofnormalsaline.Sixratsineachgroupwerekilledafter2,6,12,24,48and72hoursofreperfusion(T1一T6),respec—tively.Hippocampaltissueswereobtainedtodetecttheexpressionofcaspase-3protein
7、andmR—NAusingWesternblotandRT-PCR。respectively.Neuronalapoptosiswasdeterminedbyflowcytometry.ResultsComparedwithgroupS,theexpressionofhippocampalcaspase-3proteinandmRNAsignificantlyincreasedingroupIRandgroupP(P
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