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时间:2020-05-15
《黄龙汤对脓毒症大鼠肠黏膜上皮Claudin-1和Occludin的mRNA及蛋白表达水平的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·l38·中国中西医结合急救杂志2015年3月第22卷第2期ChinJTCMWMCritCare,March2015,Vo122,No‘2.·论著·黄龙汤对脓毒症大鼠肠黏膜上皮Claudin一1和Occludin的mRNA及蛋白表达水平的影响付瑜姜树民黄煜(1.辽宁中医药大学,辽宁沈阳110032;2.辽宁中医药大学附属医院,辽宁沈阳110032)【摘要】目的探讨黄龙汤对脓毒症大鼠肠黏膜上皮紧密连接蛋白Claudin一1和Occludin的mRNA及蛋白表达水平的影响。方法将55只Wistar大鼠按随机数字表法分为假手术组(n-m-10)、模型组(n=15)、西药治疗组(n=15)和中西药联
2、合组(n=15o采用盲肠结扎穿孔术(cIJP)复制脓毒症模型,假手术组只手术不行CLP。假手术组和模型组灌胃2mL生理盐水,西药治疗组腹腔注射美罗培南每次50mg;中西药联合组在西药治疗基础上灌胃中药黄龙汤[生大黄(后下)15g,芒硝10g,枳实15g,厚朴10g,人参10g,当归20g,黄芩15g,甘草10g煎浓成150mL]每次2mL(含生药0.68g/mL),4组均每日2次。给药4d后处死大鼠,取临近回盲部的部分回肠组织约10cm,用反转录一聚合酶链反应(RT—PCR)检测肠组织Claudin一1和Occludin的mRNA表达水平,用蛋白质免疫印迹试验(WesternBlot)检测C
3、laudin—l和Occludin的蛋白表达水平。结果与假手术组比较,模型组、西药治疗组及中西药联合组大鼠小肠上皮Claudin一1和Occludin的mRNA[积分吸光度()比值]及蛋白表达水平(灰度值比值)均明显下降(Claudin一1mRNA:0.327±0.029、0.387±0.035、0.420±0.053比0.561±0.035,OccludintuRNA:0.364±0.058、0.422±0.033、0.442±0.048比0.616±0.036,Claudin一1篮白:0.307±0.015、0.337±0.017、0.355±0.027比0.426±0.017,Occl
4、udin蛋白:0.326±0.028、0.355±0.O17、0.366±0.025比0.455±0.018,P5、teinexpressionlevelsofintestinalmucosalepithelialClaudin-IandOccludininsepsisrat凡,JiangShumin,HuangYu.LiaoningUniversityofTraditionalChineseMedicine,Shenyang110032,Liaoning,ChinaCorrespondingauthor:JiangShumin,AfiliatedHospitalofLiaoningUniversityofTraditionalChineseMedicine,Shenyang110032,Liaoning6、,China,Emaihshuminj@163.corn[Abstract]ObjectiveToinvestigatetheefectsofHuanglongdecoctiononmRNAandproteinexpressionlevelsofintestinalepithelialtightjunctionproteinClandin一1andOccludininratwithsepsis.MethodsFifty-fiveWistarratswererandomlydividedintoshamoperationgroup(n=lO),modelgroup(n=15),westernm7、edicinetreatmentgroup(15rats)andcombinedtraditionalChineseandwesternmedicinegroup(n=15).Insepsismodelgroup,cecalligationwithpuncture(CLP)wasreproduced.Intheshamoperationgroup,thestepsofoperationperformedwer
5、teinexpressionlevelsofintestinalmucosalepithelialClaudin-IandOccludininsepsisrat凡,JiangShumin,HuangYu.LiaoningUniversityofTraditionalChineseMedicine,Shenyang110032,Liaoning,ChinaCorrespondingauthor:JiangShumin,AfiliatedHospitalofLiaoningUniversityofTraditionalChineseMedicine,Shenyang110032,Liaoning
6、,China,Emaihshuminj@163.corn[Abstract]ObjectiveToinvestigatetheefectsofHuanglongdecoctiononmRNAandproteinexpressionlevelsofintestinalepithelialtightjunctionproteinClandin一1andOccludininratwithsepsis.MethodsFifty-fiveWistarratswererandomlydividedintoshamoperationgroup(n=lO),modelgroup(n=15),westernm
7、edicinetreatmentgroup(15rats)andcombinedtraditionalChineseandwesternmedicinegroup(n=15).Insepsismodelgroup,cecalligationwithpuncture(CLP)wasreproduced.Intheshamoperationgroup,thestepsofoperationperformedwer
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