欢迎来到天天文库
浏览记录
ID:36638832
大小:510.34 KB
页数:5页
时间:2019-05-13
《甲泼尼龙和纳洛酮对大鼠肺缺血再灌注损伤的保护作用研究》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、万方数据·104··论著·主垦蕉重痘叁塾堕堂!!!!至;旦筮!!鲞蔓!塑曼生!堡坐堡!!!丛盟!壁堕!些!墨!!!!!!!:;!!盟!:!甲泼尼龙和纳洛酮对大鼠肺缺血/再灌注损伤的保护作用研究张铮秦海东徐英吴海荣程惠【摘要】目的研究甲泼尼龙、纳洛酮在大鼠肺缺血/再灌注(I/R)损伤中的作用,并探讨其可能机制。方法雄性SD大鼠70只,随机均分为假手术组(sham组)、I/R组、甲泼尼龙组(MP组)、纳洛酮组(Na组)、甲泼尼龙联合纳洛酮组(MP+Na组)。术后3h和6h取标本,用钙结合蛋白V一碘化丙啶(AnnexinV—PI)双
2、染法、流式细胞仪检测肺组织凋亡细胞并计算凋亡率;用免疫组化及图像分析法观察肺脏核转录因子一xB抑制因子一a(IKB—a)、天冬氨酸特异性半胱氨酸蛋白酶一3(caspase一3)的表达;计算肺湿/干重(w/D)比值;苏木素一伊红(HE)染色,光镜下观察肺组织病理学变化,电镜下观察肺脏超微结构的改变。结果①6hMP组较I/R组肺脏IKB—a的表达有所增加,差异有统计学意义(P3、组均有所减少(P均4、甲泼尼龙;纳洛酮;核转录因子一xB抑制因子;天冬氨酸特异性半胱氨酸蛋白酶一3}细胞凋亡Protec“veeffectofmethyJpredniSoJ彻eandNaloxoneonpulm佃aryjschem妇/reperfusjonin扣ryjn朋tszHANGzheng,QINH撕一dong,xUYing,WUHni—rong,CHENGHMi.Emergenc,Center,TheFirstAff{zimedH0spita£“Nan社ngMedica£Uni口ersny,Nnnjing210006,Jiangs札,Chi5、na【Abstract】objectiveToinvestigatetheeffectofmethylprednisolone(MP)andnaloxone(Na)onpulmonaryischemia/reperfusion(I/R)injuryinratsandtostudyitspossiblemechanism.ⅣIethodsSeventymaleSprague—Dawley(SD)ratswerdusedforreproductionofunilaterallungischemia/reperfusion(I/R)6、injury,andtheywererandomlydividedintofivegroups(14ratsineachgroup):shamoperationgroup(shamgroup),I/Rgroup,MPgroup,Nagroup,andMP+Nagroup.Eachgroupwassubdividedintotwosubgroupsof3一hourand6一hourpostinjury.I/Rinjurywasproducedby45minutesofcross—clampingofthepulmonaryart7、ery,foUowedby3hoursor6hoursofreperfusion.ApoptosisrateinlungtissuewasassessedbytheuseofAnnexin—V—P1withflowcytometry.ExpressionofI.cB—aandcaspase一3inlungtissuewereobservedbyimmunohistochemicalstainandimageanalysis.Thewettodryweight(W/D)ratio,thepathologicalandultras8、tructurechangesinlungtissuewereobserved.Results①TheexpressionofIKB—ainlungwasobviouslylowerinI/Rgroupthanin6一hourMPgroup(P
3、组均有所减少(P均4、甲泼尼龙;纳洛酮;核转录因子一xB抑制因子;天冬氨酸特异性半胱氨酸蛋白酶一3}细胞凋亡Protec“veeffectofmethyJpredniSoJ彻eandNaloxoneonpulm佃aryjschem妇/reperfusjonin扣ryjn朋tszHANGzheng,QINH撕一dong,xUYing,WUHni—rong,CHENGHMi.Emergenc,Center,TheFirstAff{zimedH0spita£“Nan社ngMedica£Uni口ersny,Nnnjing210006,Jiangs札,Chi5、na【Abstract】objectiveToinvestigatetheeffectofmethylprednisolone(MP)andnaloxone(Na)onpulmonaryischemia/reperfusion(I/R)injuryinratsandtostudyitspossiblemechanism.ⅣIethodsSeventymaleSprague—Dawley(SD)ratswerdusedforreproductionofunilaterallungischemia/reperfusion(I/R)6、injury,andtheywererandomlydividedintofivegroups(14ratsineachgroup):shamoperationgroup(shamgroup),I/Rgroup,MPgroup,Nagroup,andMP+Nagroup.Eachgroupwassubdividedintotwosubgroupsof3一hourand6一hourpostinjury.I/Rinjurywasproducedby45minutesofcross—clampingofthepulmonaryart7、ery,foUowedby3hoursor6hoursofreperfusion.ApoptosisrateinlungtissuewasassessedbytheuseofAnnexin—V—P1withflowcytometry.ExpressionofI.cB—aandcaspase一3inlungtissuewereobservedbyimmunohistochemicalstainandimageanalysis.Thewettodryweight(W/D)ratio,thepathologicalandultras8、tructurechangesinlungtissuewereobserved.Results①TheexpressionofIKB—ainlungwasobviouslylowerinI/Rgroupthanin6一hourMPgroup(P
4、甲泼尼龙;纳洛酮;核转录因子一xB抑制因子;天冬氨酸特异性半胱氨酸蛋白酶一3}细胞凋亡Protec“veeffectofmethyJpredniSoJ彻eandNaloxoneonpulm佃aryjschem妇/reperfusjonin扣ryjn朋tszHANGzheng,QINH撕一dong,xUYing,WUHni—rong,CHENGHMi.Emergenc,Center,TheFirstAff{zimedH0spita£“Nan社ngMedica£Uni口ersny,Nnnjing210006,Jiangs札,Chi
5、na【Abstract】objectiveToinvestigatetheeffectofmethylprednisolone(MP)andnaloxone(Na)onpulmonaryischemia/reperfusion(I/R)injuryinratsandtostudyitspossiblemechanism.ⅣIethodsSeventymaleSprague—Dawley(SD)ratswerdusedforreproductionofunilaterallungischemia/reperfusion(I/R)
6、injury,andtheywererandomlydividedintofivegroups(14ratsineachgroup):shamoperationgroup(shamgroup),I/Rgroup,MPgroup,Nagroup,andMP+Nagroup.Eachgroupwassubdividedintotwosubgroupsof3一hourand6一hourpostinjury.I/Rinjurywasproducedby45minutesofcross—clampingofthepulmonaryart
7、ery,foUowedby3hoursor6hoursofreperfusion.ApoptosisrateinlungtissuewasassessedbytheuseofAnnexin—V—P1withflowcytometry.ExpressionofI.cB—aandcaspase一3inlungtissuewereobservedbyimmunohistochemicalstainandimageanalysis.Thewettodryweight(W/D)ratio,thepathologicalandultras
8、tructurechangesinlungtissuewereobserved.Results①TheexpressionofIKB—ainlungwasobviouslylowerinI/Rgroupthanin6一hourMPgroup(P
此文档下载收益归作者所有