简介:目的探讨p53蛋白表达在HPV16型感染相关的新疆维吾尔族妇女宫颈癌发生发展中的作用。方法采用半巢式PCR和免疫组化技术检测79例新疆维吾尔族妇女宫颈癌组织中HPV16DNA和p53蛋白表达情况,探讨其与宫颈癌发生的相关性。结果在宫颈癌组织中,HPV16检出率为81.0%(64/79),高于对照组7.5%(3/40),二者存在显著性差异(x^2=58.328,P=0.000)。宫颈癌组中p53蛋白阳性率为68.4%(54/79),明显高于正常宫颈组织12.5%(5/40),二者在统计学上有显著性差异(x^2=33.140,P=0.000)。结论高危型HPVE6介导的p53蛋白降解失活是宫颈癌发生的重要机制之一,但在部分HPV感染的宫颈癌组织中p53蛋白表达蓄积的现象提示宫颈癌的发生还涉及到其它多基因和多步骤的致癌机制。
简介:Objective:Todetecttheactivatedexpressionoftelomeraseincondylomaacuminatalesionsinlow-risk(6/11)andhigh-risk(16/18)humanpapillomavirus(HPV)infectionandexaminetheroleplayedbytelomeraseintheoccurrence,developmentandcarcinomatouschangeofcondylomaacuminata.Methods:AssayingtheexpressionoftelomeraseandthetypeofHPVindamagedskinof42CApatientsandnormalskinof30healthycontrolindividualsthroughtelomeraserepeatamplificationprotocol(TRAP)andpolymerasechainreaction(PCR).Results:Inallthenormalskincontrols,PCRforHPVwasnegativeandonly16.7%ofsampleswerepositiveforTLMAexpression;inCAlesions,HPVtestingwaspositiveinall(32caseswerelow-risk,3werehigh-risk,and7wereofmixedtype)andallwerepositiveforTLMAexpression.Conclusion:TLMAmaybeactivatedbyHPVinfection,andinturncausethehyperplasiaofepidermalcells.ItwasalsoindicatedthatHPV,especiallyhighrisktypes,canactivateTLMA.TheactivationofTLMAmayplayanimportantroleinabnormalhyperplasiaandcarcinomatouschangesinCAlesions.
简介:Topretreatspermatvarioustemperaturesbeforeexposuretohumanpapillomavirus(HPV)16DNAfragmentsandtoassesstheefficiencyofHPVcarrierspermtotransfectcumuluscells.Methods:Cumuluscellsfromfollicularaspirateswereobtained,pooledanddividedintoculturedishescontainingSybyGold-stainedHPVDNAcarryingspernthatwereeitherpretreatedat4℃,37℃or40℃(n=5).Thecellswereincubatedin5%Co2inairmixtureat37℃for24hours.TheeffeiciencyofspermtotakeupfluorescentHPVDNAwasdeterminedathour0.Afterincubation.cumuluscellviabilitywasassessedusingtheeosinmethodandthepercentagesoffluorescentcumuluscellsdetermined.Results:Ouverhalfofallthecumuluscellsbecamefluorescentwiththehighestpercentageinthe37℃group.Spermpretreatedat4℃hadthegreatestamountofHPVDNAfragments.Totalspernmotilitywassimilarforthe3pretreatmentgroups.Therewerenodifferencesincumulusviabilityamongthegroups.Conclusion:Spermpretreatedat37℃transferredthegreatestamountoffluorescentHPVDNAfragmentstothecumuluscells.TheHPVDNAwasobservedinthenuclearandcytoplasmiccompartments.ThedatasuggestedthepossibilityofspermasavectorforthetransmissionofHPVDNAtothecumuluscellssurroundingovulatedoocytes,whichmightleadtoearlyimplantationfailures.
简介:<正>优雅是一种态度,华丽是一种奢侈;在昂首挺身之中,感受那只属于女人的华贵魅力。连衣裙PORTS金属腰链,披巾BICHEdeBERE靴AEE
简介:在这研究,L1蛋白质定序的人的乳头状瘤病毒(HPV)的107种类型从可得到的数据库,和这些HPVL1蛋白质的原子本地化信号(NLS)被获得被生物信息的分析分析并且预言。从107种类型,39种类型的NLS被PredictNLS软件(由两部组成的NLS的35种类型和单音的深裂的NLS的4种类型)预言。留下的HPV类型的NLS象NLS的一般规则一样根据特征和已经预言的NLS的相同被预言。根据结果,HPVL1蛋白质的107种类型的NLS被分类进15个范畴。在一样的NLS范畴的HPVL1蛋白质的不同类型能分享类似或一样的nucleocytoplasmic运输小径。他们可能被用作一样的目标阻止并且对待HPV感染的不同类型。结果也证明生物信息的技术能被用来分析并且预言蛋白质的NLS。
简介:Sustainableurbanizationisadynamic,multi-dimensionalprocess.Itembracesrelationshipsbetweenallhumansettlements,fromsmalltownstometropolises,aswellasbetweenurbancentresandtheirsurroundingruralareas.Mostcrucially,itincludesnotonlyenvironmentalbutalsosocial,economicandpolitical-institutionalsustainability.Tomovetowardssustainableurbanization,itwillbenecessarytolearnfromrecentexperienceandtodevelopandoperationalisenewideasandapproachestoaddressawiderangeofconcerns.TheWorldSummitonSustainableDevelopmentprovideatimelyopportunitytolookmorecloselyatthechallengesandopportunitiesposedbyurbanization-anopportunitytobroadenthewaysinwhichwethinkaboutsustainabledevelopmentandthemeansbywhichtheglobalcommunityseekstoachieveit.