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ID:36664253
大小:1.86 MB
页数:32页
时间:2019-05-13
《胆红素对实验性肺气肿支气管上皮细胞的影响》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、山西医科大学硕士学位论文胆红素对实验性肺气肿支气管上皮细胞的影响姓名:李胜文申请学位级别:硕士专业:呼吸内科指导教师:宋满景2003.5.20!!l些堕型盔兰堡苎兰垡堡!:一胆红素对实验性肺气肿支气管上皮细胞的影响研究生李胜文导师宋满景山西医科大学第二临床医学院呼吸内科摘要目的:研究胆红素对吸烟所致大鼠肺气肿支气管上皮细胞的影响。方法:应用被动吸烟的方法复制大鼠肺气肿模型,采用透射电镜和光镜观察大鼠支气管上皮细胞的病理变化,用免疫组化和原位杂交分别检测支气管_i:皮细胞细胞问粘附分子1(ICAM一1)蛋白、基质金属蛋白酶9(MMP一9)mRNA表达的变化,用放射免疫分析法检测支
2、气管肺泡灌洗液肿瘤坏死因子n(n心一a)、支气管上皮细胞培养液上清中自细胞介素8(IL一8)浓度。结果:模型组支气管粘膜上皮细胞缺失,杯状细胞大量增生,上皮细胞纤毛脱落,排列紊乱,线粒体肿胀,嵴断裂、消失,内质网扩张,肺泡腔内可见坏死脱落的上皮及渗出物。对照组支气管上皮细胞完整,纤毛排列整齐,细胞内线粒体、内质网形态正常。胆红素干预组粘膜上皮细胞基本完整,上皮细胞纤毛轻度脱落,线粒体、内质网改变较轻。支气管肺泡灌洗液中n吓.a、支气管上皮细胞培养液上清IL一8浓度,模型组及胆红素干预组均高于对照组(P<0.01)与模型组比较,胆红素干预组TNF.a、IL_8浓度均明显降低,(P
3、4、ofbilirubinonbronchiaIepithelialcellofemphysematousratsABSTRACTobiection:Toexplorctheef佬ctofbilimbinonbmnchialepimelialcellofemphys锄atousratsmadebysmoking.Method:Aempllysematousratmodelwasmadebypassivesmoking.Apatholo百calchangeofbmnchial印ithelmcellwasobseⅣedunderTEMaIldLM,ICAM。lproteinalldMM5、P一9mRNAexpressionleverinbronchialcpithelialcellwasanalyzedbyimmunohisto-ch锄icalstainingandinsituhybridizationrespectiVely,thechangesofTNF·acontentinBALFandIL一8contentinsuDematantofculturedbmnchialepithelialcellswereex锄inedbyradioimmunoassay.ResuIt.Lossofbronchialepithelialcells,hypefplasiaof6、gIObletscells,lossanddisorientationofcilia,swcllinganddetbrmitvofmitochond】五a,splitanddisappearanceofcriStae,expandingofendoplasmicreticul哪werefoundinemphysematousmodelgmup.ThepathologicalchaIlgesweremuchgentlerintreatmentgroup.TheconcemrationsofTNF—QinBALFaIldIL_8insupemataIltsi印iflcalltlyi7、ncreasedbotllinemphysematousmtsandin豫tspretreatedwimbilimbincompared诵ththatincon仃ol鼬oup(p
4、ofbilirubinonbronchiaIepithelialcellofemphysematousratsABSTRACTobiection:Toexplorctheef佬ctofbilimbinonbmnchialepimelialcellofemphys锄atousratsmadebysmoking.Method:Aempllysematousratmodelwasmadebypassivesmoking.Apatholo百calchangeofbmnchial印ithelmcellwasobseⅣedunderTEMaIldLM,ICAM。lproteinalldMM
5、P一9mRNAexpressionleverinbronchialcpithelialcellwasanalyzedbyimmunohisto-ch锄icalstainingandinsituhybridizationrespectiVely,thechangesofTNF·acontentinBALFandIL一8contentinsuDematantofculturedbmnchialepithelialcellswereex锄inedbyradioimmunoassay.ResuIt.Lossofbronchialepithelialcells,hypefplasiaof
6、gIObletscells,lossanddisorientationofcilia,swcllinganddetbrmitvofmitochond】五a,splitanddisappearanceofcriStae,expandingofendoplasmicreticul哪werefoundinemphysematousmodelgmup.ThepathologicalchaIlgesweremuchgentlerintreatmentgroup.TheconcemrationsofTNF—QinBALFaIldIL_8insupemataIltsi印iflcalltlyi
7、ncreasedbotllinemphysematousmtsandin豫tspretreatedwimbilimbincompared诵ththatincon仃ol鼬oup(p
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