简介:【摘要】目的:研究分析不同免疫检验在抗HIV检测中的结果对比。方法:研究对象为2019年1月至2020年2月入院的120例需行抗HIV检测的患者,并根据检验方法的不同,分为A组(ELISA检测法)、B组(HIV核酸定量检测法)和C组(金免疫层析试验法),检测患者血清并比较三组患者的检验结果。结果:与BC两组相比,A组患者的诊断符合率、准确性和灵敏性及特异性均显著更佳。组间对比差异显著(p
简介:【摘要】目的:分析美沙酮门诊新病人HIV、HCV、梅毒检测结果。方法:将红花岗区2012年-2018年共339例美沙酮新建卡病人视为研究对象,采集静脉血,以酶联免疫吸附法为患者实施HIV、HCV、梅毒抗体检测,HIV抗体初筛阳性者送往艾滋病确证实验室验证。结果:在339例美沙酮门诊新病人中,<31岁的患者41例,所占比例是12.09%;31-50岁的患者为272例,所占比例是80.24%;>50岁的患者为26例,所占比例是7.67%。初次筛查男、女HIV抗体阳性率分别是0.45%与2.59%;HCV抗体阳性率分别是48.43%与56.9%;梅毒阳性检出率男女占比分别是5.83%、34.48%。相较而言,女性梅毒抗体筛查阳性率显著较高,与男性梅毒筛查阳性率比较有统计学意义(p<0.05)。结论:美沙酮门诊新病人HIV.HCV.梅毒检测的阳性率较高,需要加强门诊筛查与研究的重视程度,避免患者症状的发展。
简介:WeareracingwithHIV-1,theetiologicagentforAIDSinhumanbeings[1,2],withtwopossibleendconsequences:ifwewin,HIV-1willbeunderourcontrolbyimmunologicortherapeuticmeasures;ifHIV-1wins,theSIVAfricanmonkeys'storywouldrepeatinhumans,i.e.,onlythefewindividualsthatarenotkilledbythevirus
简介:ToexplorethemechanismoftheinhibitionofHIV-1byMycoplasmafermerttans,culturesupernatantsandthallodicproteinsfromM.fermerttansPG18werepreparedandtheproteincomponentsofthesupernatantswerepurifiedwithhighperformanceliquidchromatography(HPLC).Theinhibitoryactivitiestoreversetranscriptase(RT)andthenucleaseactivitiesweredetected;theinfluenceofM.fermerttansonIL-10secretionbybothnormalandH1V-1infectedhumanPBMCweredetermined,andtheinhibitoryeffectofrhIL-10onH1V-1replicationwasdetectedwithEI,ISAmethod.Theresultsshowedthatthepurifiedproteinswithamolecularweightof67-100kDaor10-25kDashoweda36%or34%inhibitoryac-tivitytoRTandpartialnucleaseactivity.ThethallodicproteincouldinducebothnormalandH1V-1infectedPBMCtosecretIL-10remarkably,andtothelatter,thiseffectwasmoreapparent.WhilerhIL-10couldinhibitreplicationofH1V-1inPB-MCinvitroinadose-dependantmanner.ItconcludesthattheinhibitoryeffectoftheM.fermentansPG18culturesupernatantsonRTandthepromotingeffectofPG18thallodicproteinonIL-10secretioninPBMCexplainthemechanismsofinhibitiontoHIV-1byM.fermentansPG18.
简介:ToinvestigatethephenotypicknockoutofHIV-1chemokinecoreceptorCXCR4andCCR5byintrakinesanditsinhibitoryeffectonHIV-1infection.PrimaryhumanPBLsweretransducedwiththerecombinantvectorpLNCX-R-K-S-K(△NGFR),followedbyanti-NGFR/anti-IgG-magneticbeadmethodselectionandFCMdetection.ThetransducedPBLswereinfectedwithDP1HIV-1virusthereafterenvelope-mediatedsyncytiumformationandp24detectionwerecarriedouttostudytheblockageofHIV-1infectionbyco-inactivationofCCR5andCXCR4.pLNCX-R-K-S-K(△NGFR)-transducedPBILswereisolatedwithananti-NGFR/anti-IgG-magneticbeadmethod.Afterisolation,about70%ofthePBLswerepositivefortheNGFRmarker.WhenthetransducedPBLswereinfectedwithDP1HIV-1virus,envelop-mediatedsyncytiumformationwasalmostcompletelyinhibitedbypLNCX-R-K-S-K(△NGFR)transfection.Also,p24antigenwasverylowintheculturesofpLNCX-R-K-S-K(△NGFR)transducedPBLs.pLNCX-R-K-S-K(△NGFR)transductioninhibitedtheproductionofDP1p24antigenby15%,43%and19%ondays4,7and10respectively.ThelymphocyteswiththephenotypicknockoutofCCR5andCXCR4couldprotectprimaryhumanPBLsfromDP1HIV-1virusinfection.
简介:目的:制备针对呼吸道合胞病毒(RSV) N蛋白的兔多克隆抗体,以其作为检测抗体建立基于ELISA的快速中和抗体检测方法。方法:构建pET30a-N质粒,表达纯化N蛋白,免疫新西兰兔制备针对RSV N蛋白的多克隆抗体作为检测抗体。阳性血清系列稀释后与100半数组织培养感染剂量(TCID 50)/孔的RSV中和,接种Hep-2细胞培养,80%丙酮固定细胞,ELISA方法检测感染细胞中病毒的N蛋白,当每孔的吸光度值低于临界值时,视为中和试验阳性孔,阳性孔血清的最高稀释度为该血清的中和抗体滴度。优化抗体稀释度、检测时间、细胞密度及中和时间,建立基于N-ELISA的中和抗体检测方法,对建立的实验方法进行细胞代次、边缘孔效应、准确性、重复性以及精密度验证,初步应用于人RSV IgG阳性血清检测,分析与微量中和法的相关性。 结果:成功构建出pET30a-N质粒,表达纯化
简介:Theimmuneefficiencyofarecombinantadenovirustype5withtype35fibercontainingHIV-1gaggene(rAd5/F35-mod.gag)wasinvestigatedinBALB/cmice,inwhichtherAd5/F35-mod.gagwasfirstlyidentifiedwithPCR,thentransfectedto293cellsandtheinvitroexpressionlevelofGagproteinwasdeterminedbyWesternblottingandindirectimmuno-fluorescentassay.MicewereimmunizedwithintramuscularinjectionsofrAd5/F35-mod.gag,rAd5-mod.gagorDNAandwereboostedafter3weeks.Totesttheeffectofpre-existinganti-viralimmunityonimmunization,micewerealsoinjectedwithAd5-GFPvectorandthenimmunized4and7weekslaterwithAd5/F35-mod.gagvector.TheP24-specificIgGantibodyinseraofimmunizedmicewasdeterminedbyELISAandthespecificcytotoxicTlymphocyte(CTL)responsewasassayedbyintracellularcytokinestaining.ItwasdemonstratedthattherAd5/F35-mod.gagvectorcouldexpressefficientlytheHIVGagproteinin293cellsinvitroandinducestrongHIV-specificimmuneresponsesinvivo.ThestrongestCTLandserumIgGresponseoccurredwhenmicewereimmunizedtwicewithinjectionofrAd5/F35alone,buttheanti-Ad5antibodyafterprimaryinfectionwithadenoviruscouldinhibitthespecificimmuneresponsesinducedbyrAd5/F35vector.ItisconcludedthatsingleimmunizationwithrecombinantadenovirusrAd5/F35-mod.gagcaninducespecificCTLandserumIgGantibodyresponsesinmice,buttheimmunogenicityofrAd5/F35iscomparablyweakerthanthatofrAd5.