简介:Severeacuterespiratorysyndrome(SARS)isaseriousandfatalinfectiousdiseasecausedbySARScoronavirus(SARS-Cov),anovelhumancoronavirus.SARS-Covinfectionstimulatescytokines(e.g.,IL-10,IFN-γ,IL-1,etc.)expressiondramatically,andTlymphocytesandtheirsubsetsCD4+andCD8+Tcellsaredecreasedafteronsetofthedisease.SARS-specificIgGantibodyisgeneratedinthesecondweekandpersistsforalongtime,whereasIgMisexpressedtransiently.ThespikeproteinandneucleocapsidproteinaremostabundantinSARS-Covandcontributedominantlytotheantibodyproductionduringthecourseofdisease.Spikeprotein,especiallytheACE-2bindingregion(318-510aa)iscapableofproducingneutralizingantibodytoSARS-Cov.NeucleocapsidproteininducesprotectivespecificCTLtoSARS-Cov.Therefore,applicationswithspikesubunit,neucleocapsidsubunitaswellasinactivatedSARS-CovarethreeprospectivevaccinationstrategiesforSARS.
简介:Severeacuterespiratorysyndrome(SARS)emergedin2002asasevereandhighlycontagiousinfectiousdiseasethatrapidlyspreadtoanumberofdifferentcountries.Thecollaborativeeffortsoftheglobalscientificcommunityhaveprovided,withinashortperiodoftime,substantialinsightsintothemolecularbiologyandimmunologyofSARS-CoV.Althoughtheoutbreakhasbeencontained,thereiscontinuousconcernthatthevirusmayresurfaceintothehumanpopulationthroughseasonalchanges,animalreservoirsorlaboratoryaccidents.TheseveremorbidityandmortalityassociatedwithSARSmakeitimperativethataneffectivevaccinebedevelopedtopreventreemergenceandepidemicsinthefuture.Cellular&MolecularImmunology.2005;2(2):101-105.
简介:SincetheoutbreakofaSARSepidemiclastyear,significantadvanceshavebeenmadeonourunderstandingofthemechanismsofinteractionbetweentheSARScoronavirus(CoV)andtheimmunesystem.StronghumoralresponseshavebeenfoundinmostpatientsfollowingSARS-CoVinfection,withhightitersofneutralizingAbspresentintheirconvalescentsera.Thenucleocapsid(N)andspike(S)proteinsofSARS-CoVappeartobethedominantantigensrecognizedbyserumAbs.CD4+TcellresponsesagainsttheNproteinhavebeenobservedinSARSpatientsandanHLA-A2-restrictedcytotoxicTlymphocyteepitopeintheSproteinhasbeenidentified.ItislikelythattheimmuneresponsesinducedbySARS-CoVinfectioncouldalsocausepathologicaldamagetothehost,especiallyinthecaseofproinflammatorycytokines.ThereisalsoevidencesuggestingthatSARS-CoVmightbeabletodirectlyinvadecellsoftheimmunesystem.OurunderstandingontheinteractionbetweenSARS-CoV,theimmunesystemandlocaltissuesisessentialtofuturediagnosis,controlandtreatmentofthisverycontagiousdisease.
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.
简介:摘要目的关于对老龄患者实施麻醉相关临床问题进行分析。方法对本院2010年5月至2012年5月中176例65岁以上实施各种麻醉手术,其中男105例,女71例;年龄在60~70岁98例,71~80岁53例,8l~95岁25例。平均年龄在73岁,择期手术127例,急诊手术49例,手术时间30~200min,平均每例92min,采用静吸复合麻醉,麻醉诱导采用芬太尼配以丙泊酚或咪唑安定静脉注射,其中芬太尼1.5~2ug/Kg,异丙酚1.5~2mg/Kg,咪唑安定0.05mg/Kg。结果176例中术中血压下降或升高38例,术中心率减慢至53次/min以下者18例,由于术中输血补液及时,术中未出现死亡。结论通过临床分析,首先做好术前准备是极其必要的的,在术前了解患者既往病史等等,合理评估其病情,术前检查血尿常规等,控制稳定高血压、炎症等症状,再行手术。
简介:摘要目的对我院病案统计存在的问题进行探讨。方法对我院2013年2015年期间病案统计工作中存在的不足进行研究分析,并提出几项具体的改进措施。结果查询速度低下、机构严重缺乏、基础建设单薄以及监管工作不到位等是病案统计工作中存在的不足,因此需提高对该项工作的重视、严格规范工作流程、提高统计人员的专业素质,对该项工作进行严格的整改,从根本提高病案管理的工作效率与质量。结论病案统计不仅对日常院方的工作顺利开展有着重要的作用,并且对医院的后续发展也可起到一定的促进作用。对患者的切身利益有着密切的管理,也关系到医院的生存与发展。因此院方应督促统计人员做好各项病案管理工作,及时的发现工作中存在的不足与问题,并根据具体的问题提出相应的改进措施,避免在后续工作中出现相同的差错,并对可能出现的问题进行预计与评估,从整体上提高病案统计的的工作效率与质量以及我院的竞争实力。