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时间:2017-12-08
《吡那地尔后处理对成年大鼠缺氧_复氧心肌细胞超微结构的影响》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、第230613卷年1第26月期遵义医学院学报Vo1.36No.6ACTAACADEMIAEMEDICINAEZUNYIDec.2013吡那地尔后处理对成年大鼠缺氧/复氧心肌细胞超微结构的影响徐鹏,喻守佳,陈伟,王海英,喻田(遵义医学院麻醉系,贵州遵义563099)[摘要]目的建立成年大鼠心肌细胞缺氧/复氧损伤模型,观察吡那地尔(Pinacidil,P)后处理对心肌细胞超微结构的影响。方法体外培养成年大鼠心肌细胞,建立心肌细胞缺氧/复氧损伤模型,将细胞随机分为6组,正常组(N)、缺氧/复氧组(H/R)、缺氧后处理组(HPO)和吡那地尔不同浓度组(25moL/L、50moL/L、100mo
2、L/L,P25、P50、P100组),采用透射显微镜观察各组心肌细胞缺氧/复氧损伤后心肌细胞超微结构的变化。结果透射显微镜显示N组超微结构正常,H/R组超微结构损伤严重,HPO、P25、P50、P100组损伤较轻,P50组较P25、P100组损伤更轻。结论缺氧/复氧能使成年大鼠心肌细胞造成损伤,吡那地尔后处理对此损伤具有一定保护作用。[关键词]缺氧/复氧损伤;心肌细胞;吡那地尔后处理;超微结构[中图法分类号]R329.2[文献标识码]A[文章编号]1000-2715(2013)06-0532-04EfectofPinacidilpostconditioningontheultrastr
3、uctureofmyocardialcellsthhypoxia/reoxygenationinjuryinadultratsXupeng,Yushoujia,Chenwei,Wanghaiying,Yutian(DepartmentofAnesthesiology,ZunyiMedicalUniversity,GuizhouZunyi563099,China)[Abstract]ObjectiveToestablishthehypoxia/reoxygenationinjurymodelofadultrats’myocardialcellsandtoobservetheinfluen
4、ceofPinacidilpostconditi0ningonmyocardialcells’uhrastructure.MethodsAdultrats’myocardialcellswerecuhuredinvitroandhypoxia/reoxygenationinjurymodelofmyocardialcellswereestablished.Then,theculturedcellswererandomlydividedinto6groups。whichwerenormalgroup(N),hypoxia/reoxygenationgroup(H/R),hypoxiapo
5、st—processinggroup(HPO),andgroupofPinacidilwithdifferentlevelsofconcentration(25I~mol/L(25),50~mol/L(P50),100I~mol/L(PIO0).Finally,theuhrastructuralchangesofmyocardialcellsineachgroupaf-terhypoxia/reoxygenationinjurycouldbeobservedbyatransmissionelectronmicroscope.ResultsTheultrastructureofNgrou
6、pwaspresentednormalbythetransmissionelectronmicroscope;theuhrastruc-tureofH/Rgroupwasseriouslyinjured;uhrastructuresofHPOgroupandP25,P50,andPIO0groupwereslightlyinjured,amongwhich,theultrastmctureofP50groupwaslessinjuredthanthatofP25andP100group.ConclusionH/R(hypoxia/reoxygenation)cancauseinjury
7、totheadultrats’myocar-dialcells,andPinacidilpostprocessinghascertainprotectiveeffectonthisinjury.[Keywords]hypoxia/reoxygenationinjury;myocardialcells;pinacidilpostconditioning;uhrastructure随着对心肌保护研究的发展,近年来,药物后具有新颖药理作用的药物。Pi
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