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：背景：表皮松解坏死型游走性红斑被认为是一种副肿瘤性皮肤病。典型症状与Q细胞型胰岛细胞瘤或胰高血糖素瘤相关。一般情况下，这种疾病的皮肤外表现包括体重减轻、糖尿病、贫血和腹泻。观察：作者报道1例39岁女性患者，有3年顽固的银屑病样皮损病史，常规检查无其他相关症状。组织病理检查提示为表皮松解坏死型游走性红斑。腹部CT示胰尾部肿瘤。胰腺远端切除术后一段时间，患者皮肤症状消失。切除的肿瘤组织病理符合胰高血糖素瘤。4年后，该患者临床痊愈，无症状且无转移迹象。结论：仅有表皮松解坏死型游走性红斑、高血糖素血症和胰岛细胞瘤而没有其他皮肤外症状的胰高血糖素瘤综合征很罕见。据作者所知，在文献报道中本例为第2例。皮肤症状很重要，常常是诊断胰高血糖素瘤综合征的线索。

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.

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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.

简介：Objective:AllelicpolymorphismsofCCR5△32、CCR2b-64I,CX3CR1-249I280MandSDF1-3’AassociatedwithHIV-1infectionanddiseaseprogressionwereinvestigatedinindigenousUygurpopulationsfromtheXinjiangUygurAutonomousRegionofChina.Mithods:Thestudypopulationcomprised316healthyUygursubjectswithanagerangeof1-80yearsold,fromwhomwholeperipheralbloodsampleswerecollectedandnonewereHIV-1seropositive.GenomicDNAsampleswerepurifiedusingaQiagenBloodKit.GenotypingoftheaforementionedfouralleleswasperformedusingPCRorPCR/RFLPassay,andfurtherconfirmedbydirectDNAsequencing.Results:TheallelicfrequenciesinChineseUygurpopulationwereasfollows:3.48%forCCR5△32;19.45%forCCR2b-64I;13.8%forCX3CRI-249I280Mhaplotype,and20.41%forSDFI-3’A.MutantalleledistributionsamongUygurpopulationswereinaccordancewiththeHardy-Weinbergequilibrium.NostatisticaldifferencewasfoundbetweenthefrequencyofthethreeHIVcoreceptorsandtheirrespectiveligandgenes.Conclusion:ThefrequencyofSDF1-3’AandCX3CR1-249I280MhaplotypemorecloselymatchedthehanChinese.ThefequencyofCCR5△32inUygurpopulationswasbetweenCaucasianandHanfrequencies,themorecloselymatchingthefrequencyinMedi-Asiapeople.NogeneticlinkagebetweenanytwoofthethreeHIVcoreceptorgeneswasfound,butobviousgeneticlinkagesexistedbetweenCX3CR1-249IandCX3CR1-280M,withevenhigherlinkagedegreesthanCaucasianpeople.

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简介：1临床资料患者,女,30岁.外阴部出现增生物5年,近1年增多.于2002年12月31日就诊.患者5年前外阴部出现一新生物,皮色,无明显自觉症状,渐渐长大如黄豆大小.近1年右侧外阴出现几个相似皮疹,逐渐长大.患者无明显痒感及其它不适.既往体健,否认婚外性接触史.丈夫健康.现患者孕50d.

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