简介:WeareracingwithHIV-1,theetiologicagentforAIDSinhumanbeings[1,2],withtwopossibleendconsequences:ifwewin,HIV-1willbeunderourcontrolbyimmunologicortherapeuticmeasures;ifHIV-1wins,theSIVAfricanmonkeys'storywouldrepeatinhumans,i.e.,onlythefewindividualsthatarenotkilledbythevirus
简介:Wehavepreviouslydemonstratedtheabilityofmalariaparasitestointerferewithspecificimmuneresponses.CD4Tcellsspecifictoparasiteantigens,butnotCD4Tcellsspecifictoanirrelevantantigen,ovalbumin(OVA),aredeletedviaapoptosisduringmalariainfection.Itisofinterest,therefore,toinvestigatetheimmuneresponsesthatdevelopedfollowingvaccinationwiththe19kDacarboxylterminusofthemerozoitesurfaceprotein1(MSP119)inmicethathadpreviouslyexperiencedmalariainfection.Inthisstudy,pre-exposureofmicetoPlasmodiumyoeliielicitednativeanti-MSP119antibodyresponses,whichcouldbeboostedbyvaccinationwithrecombinantMSP119,Likewise,infectionofMSP119-primedmicewithPlasmodiumyoelii(P.yoelii)ledtoanincreaseofanti-MSP119antibodies.MSP119vaccinationofmalariapreexposedmiceorimmunizationbyinfection/cureofMSP119-primedmiceenabledthemicetosurvivechallengeinfection,withtheformergrouphavingslightlylowerparasitaemia.Thedatasuggestthatexposuretomalariainfectionprimesanaturalimmuneresponsewhichcanbeboostedbyvaccination.Thisinformationisrelevanttothedevelopmentofavaccineforuseinindividualslivinginmalaria-endemicareas.
简介:【摘要】目的:分析乙型肝炎患者免疫球蛋白检验的临床意义。方法:选择我院于2018.12-2019.12月诊断为乙型肝炎的56例患者作为观察组,选取同时期到我院体检的56名身体健康者作为对照组,对比观察组与对照组的IgG、IgA以及IgM水平,同时对比56例患者中好转患者与未好转患者的IgG、IgA以及IgM水平。结果:观察组患者IgG、IgA以及IgM水平要高于对照组,同时好转组患者的IgG、IgA以及IgM水平要低于未好转组,差异均有统计学意义(P<0.05)。结论:免疫球蛋白能够作为判断是否患有乙型肝炎的一种依据,同时也可以反映出患者的病情状况。
简介:【摘 要】目的:了解白细胞(White Blood Cell, WBC)与C反应蛋白(C-reactive protein,CRP)检测在社区门诊患者中的临床价值。方法:于2018年6月-2020年8月本社区门诊中选择64例疑似病毒性感染患者及疑似细菌性感染患者作为实验样本,分别将其设定为A组、B组,选择同期门诊64例健康体检者设定为C组,所有受试者均进行WBC、CRP的检测,对检测结果存在的差异进行比较。结果:A组的WBC、CRP同C组行比较,数据间无统计学意义, P>0.05;B组的WBC、CRP均高于A组、C组,数据间存在统计学意义,P<0.05。结论:CRP、WBC在社区门诊联合检测,在临床上具有早期判断、识别感染的价值,值得借鉴和采纳。
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:摘要:目的 通过建立骨关节炎模型探讨整合素pI和GIT 1对软骨细胞的影响,及二者之间的调控关系。对临床上骨性关节炎的治疗起指导作用。 方法 采用约一周龄的年乳大鼠20只,用定量PCR和Western Blotting检测对照组、pcDNA3.1空载体转染组、pcDNA3.1-GIT 1过表达组、pcDNA3 . I -integrin-p1过表达组、integrin-p 1 siRNA组和NC siRNA组中,integrin-p1和GIT1的mRNA和蛋白质的表达水平,来判断integrin-p1和GIT1之间的调控关系。结论 integrin-p1可以调控GIT1的表达,GTI1可能是位于integrin-pI下游的一个关键分子。
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:摘要:紫杉醇白蛋白结合型主要被用作血液肿瘤疾病的治疗中,是化疗药物的重要用药。对于紫杉醇白蛋白在应用前需要进行一定的配比,通过配制才能达到临床治疗的要求。在紫杉醇白蛋白结合型的配比中每一个环节都非常重要,操作人员的专业化程度、配比过程的规范等都直接影响了药品最后的作用。为了保证紫杉醇白蛋白结合型我院对各个环节都进行了严格的规范,从人员到配制过程都制定了相应的标准。本次研究主要探讨了注射用紫杉醇白蛋白结合型的最佳配制方法,文章从紫杉醇白蛋白结合型的药品特点出发,论述了人员和配制过程,对每一个环节都进行了详细说明。希望通过本文的论述,为更多科室在配制紫杉醇白蛋白结合型提供参考价值和借鉴意义。
简介:TodeterminewhetherthepossessionofcertainHLA-DQA1alleleswasassociatedwiththeriskofdevelopingidiopathicdilatedcardiomyopathy(IDC)andtosubstantiatetheroleofanautoimmunologicpathogenesisinIDC.TypetheallelesofHLA-DQA1bypolymerasechainreactionwithsequence-specificprimers(PCR-SSP)techniquein38patientsofidiopathicdilatedcardiomyopathy(7womenand31men),agedfrom17to56yearsoldwithdiagnosisbeingaccordingtoWorldHealthOrganizationcriteria(IDCgroup),in50patientsofend-stageheartfailureofknownetiology(18womenand32men),withagesrangingfrom34to72(HFgroup),andinthecontrolgroupconsistingofpresumably100healthysubjects(39womenand61men)fromthehealthsurvey,agedfrom30to59yearsold.ThefrequencyofHLA-DQA1*0501intheDCMpatientswassignificantlyelevatedthanthatintheHFandthecontrolgroup.MolecularanalysisoftheDQA1genepolymorphismperformedinthethreesubgroupsshowsanincreasedfrequencyofDQA1*0501amongpatientswithlessEF.TheHFgroupcarriesahighfrequencyofHLA-DQA1*0301.AnincreasedfrequencyofDQA1*0201andDQA1*0103wasfoundinthecontrolgroup.HLA-DQA1*0501isanassociatedgeneofidiopathicdilatedcardiomyopathyandthepossessionofDQA1*0301maybeindicativeoftheknownetiologicheartfailure,suggestingthatthemechanismsinvolvedinthepathogenesisofIDCandotherwiseheartfailurearedifferent.ImmunologicabnormalitiesmaybeamajorcontributortothesusceptibilityofdevelopingofIDC.
简介:【摘要】目的 探讨免疫球蛋白检验在诊断慢性乙型肝炎中的临床价值。方法 用免疫比浊法对血清免疫球蛋白(IgG、IgA、IgM)进行检测。同时测定凝血酶原活动度(PTA)、总氮红素(TBiL)。结果 慢性乙肝、慢性重型乙肝患者的IgG、IgA、IgM水平都有升高,且较正常对照组,差异明显(P<0.05)。慢性乙肝与慢性重型乙肝组在IgG、IgA、IgM水平对比,差异明显(P<0.05)。恶化组的PTA值较好转组低(P<0.05),而IgG、IgA、IgM及TBiL较好转组高(P<0.05)。结论 免疫球蛋白能够将肝细胞受损程度反映出来,检测此指标可以对慢性乙肝患者肝功能损害情况进行评估,且判断其预后,应用价值突出。