学科分类
/ 4
69 个结果
  • 简介:Highlevelsoflowmolecularweight(LMW)IgMincertaindiseasesareassociatedwithclinicalandlaboratoryindiceswhichreflecttheseverityofthedisease.TheseassociationssuggestthatLMWIgMmayplayanimportantroleintheimmunopathogenesisofthesediseases.TofurtherapproachthequestionconcerningthefunctionalactivityofLMWIgMindisease,apanelofLMWIgMandhighmolecularweight(HMW)IgMpreparationswithorwithoutrheumatoidfactor(RF)activitywereusedtoinvestigatetheirantibodybindingactivityandtheireffectorfunction.ItwasfoundthatLMWIgM-RFandHMWIgM-RFhadasimilarbindingcapacitytoFcfragmentastherewasnosignificantdifferenceintheaffinityindexbetweenthem.ItfurthershowedthattherateofactivationandtotalamountofutilizationofcomplementbyLMWIgMandHMWIgMwassimilar,althoughthemeanfluorescenceofC3depositionbyIgM-RFandHMWIgM-RFwasslightlyhigherthanthatofLMWIgM-RFandothercontrolRFantibodies.However,thecurrentstudydemonstratedthatLMWIgMhadstrongneutrophilactivatingpropertieswhencomparedwithHMWIgM.ThesefindingssuggestthatonemechanismofLMWIgMcontributingtotheimmunopathogenesisofRAmaybeduetotheformationofcirculatingimmunecomplex(CIC)byLMWIgMwithsubsequentactivationofneutrophils.WhetherLMWIgMhasotherfunctionalactivityindiseaseisunclearandneedsfurtherinvestigation.

  • 标签: 自体免疫疾病 患者 低分子量IgM 功能 嗜中性粒细胞 类风湿因子
  • 简介:ImmunizationwithinactivatedautoreactiveTcells(Tcellvaccination)selectedfromindividual'sownTcellrepertoireprovidesauniqueinvivosettingfortestingimmuneregulationthatisknowntoinvolveinteractionsofavarietyofrelatedsurfacemolecules(1).ItinducesregulatoryimmuneresponsesthatcloselyresembletheinvivosituationwheretheimmunesystemischallengedbyclonalactivationandexpansionofgivenTcellpopulationsinvariousautoimmunediseases.TcellvaccinationprovidesapowerfulmeansofelicitingnaturalreactionsoftheimmunesysteminresponsetoclonalexpansionofTcells,whichcanusedasatherapeuticapproachtosuppressoreliminatespecificpathogenicautoreactiveTcellsinautoimmuneconditions.ClinicaltrialsusingTcellvaccinationtodepleteautoreactiveTcellsinhumanautoimmuneconditionshavebeguntorevealthepathologicrelevanceofvariousautoimmuneTcellpopulationsinthediseaseprocesses,providingauniqueopportunitytotesttheautoimmunetheoriesinaclinicalsetting.Cellular&MolecularImmunology.2004;1(5):321-327.

  • 标签: T细胞 疫苗 免疫疗法 自体免疫疾病 免疫学
  • 简介:瞄准:为了评估磁性的回声cholangiopancreatography(MRCP),与磁性的回声(先生)一起的调查结果在自体免疫的胰腺炎(AIP)想象病人。方法:有AIP的九个病人经历了MRI,MRCP,内视镜后退cholangiopancreatography(ERCP),计算断层摄影术,和ultrasonography。在类固醇治疗前后拿的MRCP和先生图象被考察并且与另外的成像形式相比。AIP盒子的MRCP调查结果与有胰的头的癌的10个盒子的那些相比。结果:在MRCP上,在ERCP上注意的主要的胰腺的管的缩小的部分没被设想,当主要的胰腺的管的非包含的片断被设想时。近似的主要的胰腺的管的在上游的膨胀的度比在胰腺的癌的情况下看温和。更低的胆汁管的狭窄或阻塞在8个病人被检测。先生图象在T1加权的先生图象上与减少的信号紧张显示出胰的增大,T2加权的先生图象上的增加的信号紧张,并且,在3个病人,低亚硫酸钠强烈像囊的边界。在类固醇治疗以后,以前没设想主要的胰腺的管的部分被看见,与胆汁管狭窄的改进一起。胰腺的增大减少了,并且T1加权、T2加权的先生图象上的反常信号紧张成为了isointense。结论:MRCP不能区分从与胰腺的癌看见的主要的胰腺的管的狭窄与AIP看见的主要的胰腺的管的不规则的变窄。然而,与在T1加权、T2加权的先生图象上显示出反常信号紧张的胰腺的增大的先生成像一起的MRCP调查结果在支持AIP的诊断是有用的。

  • 标签: 自身免疫 胰腺炎 病理机制 临床
  • 简介:LastWednesday,AgricultureSecretaryAnnVenemanannouncedthefirstcaseofmadcowdiseaseintheUnitedStates.Atestseemedtoshowbovinespongiformencephalopathy,orB-S-E.inacowfromWashingtonstate.Thenextday,alaboratoryinWaybridge,England,Confirmed(证实)thecase。

  • 标签: 阅读理解题 高中 英语 参考答案
  • 简介:Asthmadevelopsinaboutoneadultperthousandpopulationperyear,andepidemiologicalstudiesindicatethatabout10%ofcasescanbeattributedtoexposuresatwork.However,occupationalasthmaisidentifiedlesscommonlythanthisinclinicalpractice;anincidenceof800-1000casesperyearisestimatedbytheUKSurveillanceofWork-RelatedandOccupationalRespiratoryDiseasescheme.Occupationalasthmaiseasilymissedbecause,apartfromitsassociationwithwork,

  • 标签: 职业病 哮喘 呼吸系统疾病 病因
  • 简介:HeartdiseaseistheleadingkillerofAmericans.Butitkillsmorewomenthanmen.TheAmericanHeartAssociationsaysheartdiseaseandothercardiovascular(心血管的)disorderskillaboutfivehundredthousandwomenayear.Thatismorethanthenextsevencausesofdeathcombined.

  • 标签: 高中 英语 阅读训练 参考答案
  • 简介:通过ubiquitin-proteasome系统的蛋白质降级是细胞内部的蛋白质的non-lysosomal解朊作用的主要小径。它在象房间周期的规定那样的许多基本细胞的过程起重要作用有免疫力、煽动性的回答的前进,分割,开发和区别,apoptosis,房间trafficking,和调整。这个系统的中央元素是到指向的蛋白质的ubiquitin的连接,它是然后由26Sproteasome认出了的共有原子价,腺苷triphosphate依赖的、多催化的朊酶。损坏,氧化,否则象控制许多批评细胞的函数的规章的蛋白质一样的错误褶层蛋白质在这降级进程的目标之中。这个系统的错误导致细胞的动态平衡的dysregulation和多重疾病的发展。在这评论,我们在煽动性、自体免疫的疾病的开发描述了基本生物化学和ubiquitin-proteasome系统,和它的复杂角色的分子的生物学。另外,与ubiquitin-proteasome系统有关的治疗和潜在的治疗学的目标也被讨论。细胞与分子的免疫学。2006;3(4):255-261。

  • 标签: 泛激素 炎症 免疫疾病 治疗
  • 简介:<正>Immunologicaltolerancetoselfisessentialformaintainingtheintegrityoftheorgansystems,anditsbreakdownmayleadtothedevelopmentofautoimmunediseases.Tolerancetoselfismaintainedthroughseveralmechanisms,whichincludenegativeselection,functionalinactivation(anergy)andsuppressionofautoreactivelymphocytes.However,onlynegativeselectionpermanentlyremovesautoreactivecellsthroughapoptosis.WhileithaslongbeenknownthatnegativeselectionrequiresaTcellreceptor(TCR)signal,itisunclearwhetheradeathligandsignalisalsoinvolved.TRAIL,thetumornecrosisfactor(TNF)-relatedapoptosis-inducingligand,isanewlydescribedmemberoftheTNFfamily.Unlikeotherdeathligandsof

  • 标签: 自身免疫性疾病 TNF TRAIL缺乏小鼠 缺陷型淋巴细胞凋亡
  • 简介:Paget'sdiseaseofboneisafocaldisorderofboneremodellingcausedbyabnormallyincreasedosteoclast-mediatedboneresorption.qtleaffectedboneschangeinshaw,sizeanddirection,whiletherestoftheskeletonremainsnormal.TheclinicalconsequencesofthediseasewerefirstdescribedbySirJanlesPagetin1876(Figure1).

  • 标签: PAGET骨病 遗传异源性 病理生理学 破骨细胞 二磷酸盐类 降钙素
  • 简介:IncreasinglyaWoman'sDisease¥ZhangKonglaiandWangYingAIDSisadeadlysexuallytransmitteddiseasecausedbythehumanimmuno-deficiencyvi...

  • 标签:
  • 简介:TheJanuskinase-signaltransducersandactivatorsoftranscription(JAK-STAT)signalingpathway,activatedbymorethan50cytokinesorgrowthfactors,playscriticalrolesinawidevarietyofcellularfunctionsinthehematopoietic,immune,neuronalandhepaticsystems.Intheliver,thissignalingpathway,activatedbymorethan20cytokines,growthfactors,hormones,andhepatitisviralproteins,playscriticalrolesinantiviraldefense,acutephaseresponse,hepaticinjury,repair,inflammation,transformation,andhepatitis.ThisarticlereviewsthebiologicalsignificanceofSTAT1,2,3,4,5,6inhepaticfunctionsanddiseases.Cellular&MolecularImmunology.2005;2(2):92-100.

  • 标签: 肝脏疾病 放射强度 细胞功能 造血系统 免疫反应
  • 简介:ToinvestigatethesignificanceoftheSARS-associatedcoronavirus(SARS-CoV)antibody,detectedbyELISAandindirectimmunofluorescenceassays(IFA)fortheSARS-CoVVeroE6celllysates,innon-SARSsubjects,114serumsamplesfromhealthycontrolsand104serumspecimensfromautoimmunediseasepatientswerecollected.TheresultsofELISAshowedthatamong114serafromhealthycontrols,4(3.5%)werepositiveofSARS-CoV-IgGantibodyand114(100%)wereallnegativeofSARS-CoV-IgMantibody;thespecificityofSARS-CoV-IgGantibodyforSARSpatientswas96.5%,butthespecificityofbothSARS-CoV-IgGand-IgMantibodiesforSARSpatientswas100%.In58caseswithSLE,positiveratesofSARS-CoV-IgGand-IgMantibodieswere32.8%(19/58)and8.6%(5/58),respectively,inwhich11cases(19%)werepositiveofbothSARS-CoV-IgGand-IgMantibodies;in10caseswithSS,positiverateofbothSARS-CoV-IgGand-IgMantibodieswas10%(1/10);in16caseswithMCTD,positiverateofSARS-CoV-IgGwas37.5%(6/16),positiverateofbothSARS-CoV-IgGand-IgMantibodieswas6.3%(1/16);in20caseswithRA,onecasewaspositive(5%)ofSARS-CoV-IgG.However,ofallsampleswithpositiveSARS-CoV-IgGand-IgMantibodiesforautoimmunediseasesandhealthycontrols,SARS-CoVRNAandantibodieswereallnegativebyRT-PCRandIFA.AllserafornegativeorpositiveELISAresultswerealsonegativeorpositiveresultsusingELISAwithVeroE6cellslysates.ThesestudiesshowedthatSARS-CoVVeroE6celllysatesfortheELISAtodetectSARS-CoVantibodiescouldleadtothefalse-positivereactionsorcross-reactionsofSARS-CoVantibodiesinnon-SARSdiseasesandhealthycontrols,andthefalse-positivereactionsorcross-reactionswererelatedtoVeroE6celllysatesandautoantibodiesinnon-SARSpopulation.

  • 标签: 十字反应 SARS-CoV抗原 自身抗体 自体免疫性疾病 IFA
  • 简介:Toinvestigatetheetiologyofgenitalulcerdisease(GUD)amongpatientsattendingsexuallytransmitteddisease(STD)clinicsinGuangzhou,China.BetweenSeptember8,1998,andAugust9,assessed.ClinicaletiologyofGUDwasdependentonincludingthefollowing:darkfieldmicroscopyandserologyforTreponemapallidum(TP),swabsofgenitalulcerforsimultaneousdetectionofHSV,TP,Haemophiusducreyi(HD),Humanpapillomavirus(HPV),andserologyforHIVinfection.Twohundredthirtymenandthirty-sevenwomenwithamedianageof33.4(range16-74years)wereanalyzed.TheetiologyofGUDwassyphilis(26.59%)(71/267),genitalherpes(17.60%)(47/267),condylomataacuminata(4.87%)(13/267),candidiasis(3.37%)(10/267),andmultipeinfection(6.74%)(18/267).TheseroprevalenceofHIVwas0.07%(2/267).Noetiologywasidentifiedin50.56%(135/267).TheetiologyofGUDamongSTDpatientsinourareawasmultifactorialwithapredominanceofsyphilisandgenitalherpes.BasedonthislimiteddataobtainedatSTDclinics,HIVinfectionwasnotcommon.

  • 标签: 生殖器溃疡 GUD 性传播疾病 STD 临床研究 血清学检测
  • 简介:Toinvestigatetheexpressionofapoptosis-relatedprotein(Fas,FasL,andBcl-2)inthepathogenesisofautoimmunethyroiddisorders(ATDs),immunohistochemicalstainingwasperformedon20Hashimoto'sthyroiditis(HT),20Graves'disease(GD),and20thyroidfollicularadenoma(TFA,ascontrol).AllthecasesexpressedFas,mainlyonthecellsurfaceandcytoplasm.FasLwasfoundin17casesoftheTFA.Bcl-2wasdetectedin15casesofHT,19ofGDand17ofTFA.InTFA,amoderateFasexpressionandaminimalornoFasLexpressionwasdetectedonfollicularcells.InHT,thefolliclesadjacenttoinfiltratinglymphocytesshowedincreasedlevelsofFasandFasLexpression.AweakerstainingofFasandFasLwasexhibitedoninfiltratinglymphocytesthanonthyrocytes.InacomparisonofGDwithHT,thyrocytesandlymphocytesshowedsimilarFasstaining,butforFasLthestainingwasratherweakerinHT.TheexpressionofBcl-2wasnearlyidenticalinGDandTFA,butmuchweakeronthefollicularcellsinvicinityoflymphocytesandonthelymphocyteslocatedingerminalcentersofHTtissues.TheexpressionofFas,FasL,Bcl-2inHashimoto'sthyroiditisandGraves'diseasewerealmostsame.FasLstrongexpressionandBcl-2weakexpressiononthefolliclesinHTmayinduceapoptosis.TheseresultsprovidedevidenceforexpressionofFas,FasLandBcl-2inthepathogenesisofautoimmunethyroiddisease.ThelymphocytesseemnottobedirectlyengagedintheprocessviatheirownFasL,buttheymayprovidesomecytokinesthat,inturn,upregulateFasand/orFasLexpressiontoinduceapoptosis.

  • 标签: ATD HT GD FAS FASL BCL-2
  • 简介:ThetherapeuticprinciplesofAlzheimer’Diseasewerereplenishingvitalenergyandinvigoratingbloodcirculation,invigoratingfunctionofthespleentoresolvephlegm,strengtheningthemarrowbyreinforcingthefunctionofthekidney,invigoratingbloodcirculationtoeliminatebloodstasis.Themaintherapeuticacupointswereasfollo

  • 标签: 阿耳茨海默病 精神病 针刺疗法 按摩疗法 中医
  • 简介:Objective:Toobservetheeffectofelectroacupuncture(EA)onMeniere'sdisease.Methods:Atotalof114cases(38malesand76females)ofMeniere'sdiseaseweretreatedwithEAofErmen(耳门TE21),Tinggong(听宫SI19),Tinghui(听会GB2),Yifeng(NFDB1风TE17),Fengchi(风池GB20)andBaihui(百会GV20).Thetreatmentwasgiven3timesaweek,9timesaltogether.Follow-upwasmadeattheendofthe3rd,6thand12thmonthsaftertreatment.Results:Follow-upin114patientsshowedthatafterEAtreatment,63cases(55.26%)werecured,30(26.31%)hadremarkableimprovementintheirsymptoms,10(8.77%)respondedwithimprovementand11(9.65%)failedinthetreatment,withatotaleffectiverateof90.35%.Conclusion:EAtreatmentwaseffectiveincontrollingMeniere'sdiseasepatients'symptomsandreducingattack.

  • 标签: 电针刺治疗 梅尼埃尔氏综合征 EA 耳门 听宫
  • 简介:CD3-specificmonoclonalantibodywasthefirstoneusedforclinicalpracticeinfieldoftransplantation.Recently,renewedinterestshaveelicitedinitscapacitytopreventautoimmunediabetesbyinducingimmunetolerance.Inthisstudy,wetestedwhetherthisantibodycanalsobeusedtotreatanotherkindofautoimmunediseasemyastheniagravis(MG)andexploredthepossiblemechanisms.MGiscausedbyanautoimmunedamagemediatedbyantibody-andcomplement-mediateddestructionofAChRattheneuromuscularjunction.WefoundthatadministrationofCD3-specificantibody(Fab)2toananimalmodelwithexperimentalautoimmunemyastheniagravis(EAMG)(B6micereceived3timesofAChR/CFAimmunization)couldnotsignificantlyimprovetheclinicalsignsandclinicalscore.Whenthepossiblemechanismsweretested,wefoundthatCD3antibodytreatmentslightlydown-regulatedtheT-cellresponsetoAChR,modestlyup-regulationthemusclestrength.AndnosignificantdifferenceinthetitersofIgG2bwasfoundbetweenCD3antibodytreatedandcontrolgroups.ThesedataindicatedthatCD3-specificantibodywasnotsuitablefortreatingMG,anantibody-andcomplementmediatedautoimmunedisease,afterthisdiseasehasbeenestablished.TheroleofCD3-specificantibodyintreatingthiskindofdiseaseremainstobedetermined.

  • 标签: 单克隆抗体 重症肌无力 自体免疫 实验研究
  • 简介:Objective:Toinvestigatethedepressionstatusofpatientswithsexuallytransmitteddiseases(STDs).Methods:Thedepressionstatusoffifty-onehospitalizedSTDpatientswasevaluatedinarandomizedcontrolstudyusingZung'sQuantitativeTable.18healthycontrolpatientswithsimilardemographicbackgroundswererandomlychosenascontrols.Patientswithscoresaboveorequalto40wereconsideredtobesufferingfromdepression.Results:Theprevalencerateofdepressioninthepatientgroupwasobviouslyhigherthanthatofinthecontrol(X2=16.456,P<0.01).Prevalenceofdepressionwasfoundtobesignificantlyrelatedtooccupation(P<0.05).Thoughtheprevalencewasnotfoundtodiffersignificantlybetweenthosewithatreatmentcourselessthan2monthsandthosewithonelongerorequalto2months(X2=0.041,P>0.05),themeandepressionscoresoftheformergroupweresignificantlyhigherthanthoseofthelatter(P<0.01).Nosignificantdifferenceswerefoundbetweennewversusrelapsingdisease,marriedversusnon-married,maleversusfemale,ordifferingeducationalbackgrounds.

  • 标签: 性传播疾病 复发 病理机制 致病因素