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简介：Objective:TounderstandthechangeofTh1/Th2andTc1/Tc2balanceinpatientswithsecondaryearlysyphilis.Methods:PeripheralbloodThandTccellsubpopulationswereexaminedbythree-colorflowcytometryin30patientswithsecondaryearlysyphilisand20healthysubjects.Results:PercentagesofCD3^+,CD4^+TcellsandtheratioofCD4^+/CD8^+andNKcellsinsyphiliticpatientsweresignificantlylowerthaninthecontrolgroup(P<0.001),butnostatisticaldifferencewasfoundinpercentagesofCD8^+andCD19^+cellsbetweenthetwogroups(P>0.05).ThepercentageofTh1cellsandratiosofThl/Th2andTcl/Tc2insyphiliticpatientswereclearlydecreasedascomparedtothoseincontrois(P<0.001-0.01),whereaspercentagesofTc0andTc2cellsinsyphiliticswashigherthanthoseincontrols(P<0.001).Conclusion:Therecouldbeadisturbanceofcellularimmunityandtherelativelyintactfunctionofhumoralimmunityinsecondarysyphilis.ItispostulatedthatthepolarizationtowarddevelopmentofTh2andTc2cellsandtheirassociatedcytokinesmightbeinvolvedintheincompleteclearanceoftreponemesandthedevelopmentofchronicinfection.

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简介：1临床资料患者男,35岁,农民,主因右下肢皮肤疣状结节斑块破溃、渗出,反复发作进行性加重13年,于2003年4月26日收住院.患者入院前13年,小腿内侧外伤后出现散在黄豆及蚕豆大小暗红色疣状结节,逐渐增大形成斑块,表面破溃,有脓性分泌物.

简介：1临床资料患者,男,50岁,因"确诊慢粒16月,异基因外周造血干细胞移植术后1年,全身红色皮疹伴口唇糜烂1月",于2003年2月19日入院.患者1年前体检时发现外周血白细胞156×109/L,脾大,查骨髓像:慢性粒细胞白血病,经羟基脲2g/天治疗,血象控制正常.

简介：Objective:Toanalyzesubtypesandquasi-speciesofisolatedvirusesfromHIV-1infectedindividualsamongthepopulationepidemiologicaldynamicsoflocalHIV-1isolates,thuslayingafoundationfordesigningacandidateAIDSvaccine.Methods:Byhetero-duplexmobilityassay(HMA)andsinglestrandconformationpoly-morphism(SSCP)analysisonampliconsfromsingle-primedpolymerasechainreaction(SP-PCR),subtypesandquasi-speciesoftestedHIV-1isolateswereelucidated,andampliconsweresequencedforconfirmation.Results:Specificampliconsfromdifferentsubtypesandquasi-speciesofHIV-1couldbediscerniblebyHMAandSSCPanalysis.HIV-1isolatesfromdifferentpatientsmightbeeitheradifferentsrbtypeoranidenticalsubtype,andHIV-1isolatesfromanindividualwerepresentinapopulationofquasi-species.

简介：Objective:ToevaluatethehumoralimmuneinductioninratsofacandidateAIDSvaccineexpressingthegagp24genefromasubtypeBHIV-1isolate.Methods:Theamplifiedp24genewasinsertedintoaneukaryoticexpressionvectortoformthesupercoiledDNAvaccine.ThelinearizedexpressedDNAvaccinewaspreparedfromtheexpressionplasmidbypolymerasechainreaction(PCR).TheantigengeneexpressioninratsofthelinearizedandsupercoiledDNAvaccineswereinvitroandinvivodetected.Results:InvitrotranscriptionandNorthernhybridizationshowedthatthelinearizedDNAvaccinecouldsynthesizeamountsofp24mRNAsimilartothesupercoiledDNAvaccine.AntibodyassaysofinoculatedratsconfirmedthatthelinearizedexpressionDNAcouldinduceaslightlyhigherantibodytiterthantheexpressionplasmid,whilethehighestantibodytiterhadbeeninducedbyplasmidplusadjuvantinoculation.Conclusion:TheconstructionofacandidateAIDSvaccinebasedonthep24genecouldshedlightonapotentialHIVvaccine,meritingevaluationinarhesusmacaqueSHIV-AIDSmodel.

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简介：临床资料患者男性,28岁,某部干部.因食用新鲜香椿全身风团,伴瘙痒10h,来我院皮肤科就诊.

简介：一40岁患者有3年血小板减少病史，因出现网状和斑点状色素沉着和减退斑就诊（以躯干上部为甚），伴指（趾）甲发育不全或营养不良及泪管闭锁。口咽部检查发现多处黏膜白斑及几乎所有牙齿缺失。根据上述检查，诊断为X连锁先天性角化不良（Zinsser-Cole—Engman综合征，OMIM#305000），并通过对角蛋白1（DKC1）基因测序确诊，基因测序结果表明在外显子11有1个错义突变。

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简介：ChinesepopulationsinfectedwithHIV-1.Methods:GenomeDNAfromperipheralbloodmononuclearcells(PBMCs)of78HIV-1infectorswasamplifiedbypolymerasechainreaction(PCR).CCR5,CCR2bandSDF1genefragmentswereobtainedfromrestrictivefragmentlengthpolymorphism(RFLP)and/orCCR△32,CCR5m303,CCR2b-64IandSDF1-3'Aallelicgenes'mutationalfrequenciesweresequenceddirectlyfromPCRproducts.Results:NoneofCCR5△32,CCR5m303genemutationwerefoundin78subjectswithHIV-1infection.TheallelicgenemutationfrequenciesofCCR2b-64IandSDF1-3'Acorrespondingto14.9-34.0%and17.6-38.2%of95%CI,were22.79%and26.92%respectively.TheircolonydistributionconformedtotheHardy-Weinbergequilibrium.Conclusion:TheHIV-1infectionsfoundatpresentareallsusceptiblepopulationofCCR5△32andCCR5m303.ThepolymorphismandfrequenciesofCCR5△32,CCR5m303,CCR2b-64IandSDF1-3'AallelesfromChineseHIV-1infectedpopulationweredisclosedinthisstudyforthefirsttime,whichisofsignificanceforstudyingthegeneticresistancetosusceptibilitytoHIV-1infectionaswellasAIDSdiseaseprogression.

简介：秋水仙碱中毒是一种罕见但描述完整的临床疾病。秋水仙碱中毒的多个器官系统组织病理改变已有描述；但皮肤改变只有个别病例描述过。作者报道1例通过皮肤活检诊断为秋水仙碱中毒的患者，该患者有精神状态改变。其皮肤表现为弥漫性、苍白、紫色、麻疹样皮疹，累及躯干和近端肢体。组织病理学变化包括停滞于分裂中期的角质形成细胞和其下的基底细胞空泡化。这些特征，结合多器官功能障碍和已知的秋水仙碱暴露史，促使做出最后诊断。

简介：Objective:TodirectionallyclonetheomplgenefromChlamydiatrachomatis(Ct)FGenotypeontoaplasmidvectorforconstructingarudimentaryDNAvaccine.Methods:ThecompleteomplgenefromgenomicDNAofCtFgenotypewildspecieswasamplifiedwithprimersdesignedbycomputer.Therecombinantgenewasobtainedbyrestrictionenzymecutting,linkingthegenewiththeplasmidvectorinvitro,transformingtherecombinantgeneintobacteria,andextractingtheDNAfromthebacteria.Results:DNAextractingfromthebacteriawascomposedoftheimplgeneandplasmid,whichisidentifiedbythreemethodsofsingularrestrictiveenzymecutting,doublerestrictiveenzymecuttingandPCR.Conclusion:CloningoftheomplgenefromtheCtFgenotypemeansthatarudimentaryDNAvaccinewassuccessfullyconstructed.

简介：Objective:Toobservetheeffectivenessofhighlyactiveantiretrovirustherapy(HAART)onHIV/AIDSpatients.Methods:UsingHIV-Iquantitativemethodsandimmunologicalfunctioninspection,wemonitored4HIV/AIDSpatientswhoweresufferingfromimmunologicaldeficiencyandweretreatedwithHAART.Results:ThereproductionofHIVinall4patientswasefficientlycontrolledatthe4thweekofthetreatment.Theaverageviralloaddecreasedby1.99Log/ml(0.73-2.46Log/ml).ThenumberofCO+4andCD+sshowedasteadycontinuousincrease4to12weeksafterthetreatment,withanincreaseof67.2%and103.0%respectively.CorrelativestudyamongdifferentvariablesafterthetreatmentrevealedthatpositivecorrelationexistedbetweenthenumberofCD+4andCD+3aswellasCD+8,whilenegativecorrelationexistedbetweenthenumberofCD+4andplasmaviralload.Conclusion:HIV-Iquantitativemethod(plasmaviralload)andthenumberofCD+4inperipheralbloodcanbeusedasimportantreferenceindicatorsinevaluatingHAART.

简介：Objective:Toamplifyantigengenesfrompatientswithhumanimmunodeficiencyvirustype1(HIV-1)inGuangdongProvinceforcandidateAIDSvaccinedesign.Methods:Viralnucleicacidwasisolatedfrom10HIV-1infectedindividuals'peripheralbloodcollectedduring1995-2000inGuangdongProvince.Theviralgagp24geneandenvgp120genewereamplifiedbynested-PCRandsequenced.ThehomologiesamongHIV-1isolateswerecomparedwithHIV-BLAST.Results:Among10HIV-1isolates,ninearehomologoustovirusesofsubtypeB,andoneishomologoustovirusesofsubtypeE.Conclusion:SubtypeBvirusesofHIV-1arepredominantlypresentinGuangdongProvince.