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ID:37422983
大小:2.22 MB
页数:46页
时间:2019-05-23
《葛根素对大鼠肺纤维化的干预研究》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、中文摘要目的1.建立博莱霉素所诱导的大鼠肺间质纤维化模型;2.观察葛根素对大鼠肺纤维化形成的干预作用;3.通过对肺纤维化模型大鼠病理形态、超氧化物歧化酶(SOD)、丙二醛(MDA)及羟脯氨酸(m门)含量来探讨葛根素对实验性大鼠肺纤维化影响的作用机制。方法SD雄性大鼠40只,随机分为对照组,模型组,葛根素组,激素组,每组10只,(1)对照组:实验开始时经气管内推注生理盐水5mg/kg。(2)模型组:分别5mg/kg博莱霉素注入气管,以上两组每天腹腔注射生理盐水lml/kg。(3)葛根素组:分别5mg/kg博莱
2、霉素注入气管,以后每天按30mg/kg葛根素腹腔注射。(4)激素组:分别5mg/kg博莱霉素注入气管,以后每天按lmg/kg地塞米松腹腔注射。分别于第7、28天每组各处死5只,28天后,评价肺组织病理形态学变化,检测肺组织匀浆液HYP含量和肺系数变化;检测各组肺组织匀浆中SOD活性和MDA含量。结果(1)各组肺系数比较第7、28天后,模型组肺系数较其他三组明显增加(PO.05)。(2)通过HE染色,观察N.-葛根素与激素组的大鼠肺泡炎及肺纤维化程度均
3、较模型组明显减轻,治疗7天组肺组织炎细胞、浸润区域较模型组明显减少;28天组呈轻、中度肺纤维化改变,病变范围局限,肺泡间隔胶原纤维沉积呈束状。(3)葛根素与激素组较模型组大鼠肺组织匀浆SOD含量更高(P4、IIIAbstractABSTRACTobjective1.ToestablishtheBleomycin-inducedpulmonaryfibrosismodelinrats;2.Toobservetheeffectsofpuerarinonthepulmonaryfibrosisinrats.3.ToexplorethemechanismoftheeffectsofmodelSDratsbythehistopathology,theactivityoftheSOD,thecontentsofHYPan5、dMDA.MethodsFortymaleSDratsweredividedintofourgroups:controlgroup(N=10),modelgroup(N=IO),pueraringroup(N=IO)andglucocorticoidsgroup(N=Io),(1),nleratsofcontrolgroupwere坷ectednormalsodiumwithadoseof5mg/kgintracheaatthebeginningofexperiment.(2)Theratsofmodelg6、roupwereinjectedbleomycinA5winladoseof5mg/kgintracheaatthebeginningofexperiment.Boththecontrolgroupandthemodelgroupwereadministeredintraperitonealinjectionofnormalsodium、Ⅳitlladoseoflml/kg.(3)TheratsofpueraringroupwereinjectedbleomycinA5丽tlladoseof5mg/kgin7、tracheaatthebeginningofexperimentandsimultaneouslyadministeredintraperitonealinjectionofpuerarinwithadoseof30mg/kg.(4)Theratsofglucocorticoidsgroupwere蜥ectedbleomycinA5、Ⅳimadoseof5mg/kgintracheaatthebeginningofexperimentandsimultaneouslyadministeredintrape8、ritonealinjectionofglucocorticoidswithadoseoflmg/kg.Onthe7th,28tlldayafteradministration,5ratsofeachgroupweresacrificedrespectively.Onthe28也day,thelungswereharvestedforhistophologicalexamintion,thelungcoeffic
4、IIIAbstractABSTRACTobjective1.ToestablishtheBleomycin-inducedpulmonaryfibrosismodelinrats;2.Toobservetheeffectsofpuerarinonthepulmonaryfibrosisinrats.3.ToexplorethemechanismoftheeffectsofmodelSDratsbythehistopathology,theactivityoftheSOD,thecontentsofHYPan
5、dMDA.MethodsFortymaleSDratsweredividedintofourgroups:controlgroup(N=10),modelgroup(N=IO),pueraringroup(N=IO)andglucocorticoidsgroup(N=Io),(1),nleratsofcontrolgroupwere坷ectednormalsodiumwithadoseof5mg/kgintracheaatthebeginningofexperiment.(2)Theratsofmodelg
6、roupwereinjectedbleomycinA5winladoseof5mg/kgintracheaatthebeginningofexperiment.Boththecontrolgroupandthemodelgroupwereadministeredintraperitonealinjectionofnormalsodium、Ⅳitlladoseoflml/kg.(3)TheratsofpueraringroupwereinjectedbleomycinA5丽tlladoseof5mg/kgin
7、tracheaatthebeginningofexperimentandsimultaneouslyadministeredintraperitonealinjectionofpuerarinwithadoseof30mg/kg.(4)Theratsofglucocorticoidsgroupwere蜥ectedbleomycinA5、Ⅳimadoseof5mg/kgintracheaatthebeginningofexperimentandsimultaneouslyadministeredintrape
8、ritonealinjectionofglucocorticoidswithadoseoflmg/kg.Onthe7th,28tlldayafteradministration,5ratsofeachgroupweresacrificedrespectively.Onthe28也day,thelungswereharvestedforhistophologicalexamintion,thelungcoeffic
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