简介:ObjectivesTocomparetheefficiencyoffourcommercialELISAkitsindetectingtype-specificHSV-2IgGantibodies.MaterialsandMethods:Atotalof125subjects,including105withgenitalulcers,and20controlswithoutanyhistoryofSTDswererecruitedfromtheSTDclinicfordetectionoftype-specificHSV-2IgGantibodywithdifferentkits.FourkindsofcommerciallyavailableELISAkits,includingQuidaHSV2IgGELISA(AifulangBiochemCo.Ltd.,Hangzhou),TORCH-HSV2IgG(JingmeiBiotechCo.Ltd.,Shanghai),Captia^TMHSV2IgG(Trinitybiotech,USA)andHerpeSelectT^TM2ELISAlgG(Focustechnologies,USA)wereusedforevaluation.WesternBlotassaywasperformedasagoldstandard.Results:ComparedtoWesternBlotresults,thesensitivityandspecificityofthekits(QuidaHSV2,TORCHHSV2,Captia^TMHSV2andHerpeSelect^TM2)were13.1%and98.4%,7.5%and100%,100%and11.1%,87.7%and96.7%,respectively.Thepositivepredictivevalue(PV)andnegativePVofthefourkitswere88.9%and54.3%,100%and55.5%,55.6%and100%,96.2%and89.2%,respectively.TheareasundertheROCcurveofthreekits(QuidaHSV2,Captia^TMHSV2andHerpeSelect^TM2)were0.885(0.822-0.948),0.825(0.747-0.902),0.974(0.950--0.998),respectivelyConclusion:TheperformanceofHerpeSelect^TM2isthebestamongthefourkits.Theresultsalsoindicatethatthecommerciallyavailablekitsfordetectionoftype-specificHSV2antibodyshouldbere-evaluatedintermsoftheirvalidity.
简介:Objective:Toinvestigatetherolesofinterleukin-2(IL-2)andinterleukin-10(IL-10)inpathogenesisofearlysyphilis.Methods:TheserumlevelsofIL-2andIL-10in48patientswithearlysyphilisweredetectedbyABC-ELISA.Results:(1)ThelevelofIL-2inthepatientswithearlysyphiliswassignificantlyhigherthanthatinhealthycontrols,whilethatofIL-10waslower(P<0.001andP<0.001).(2)ThelevelsofIL-2andIL-10werealmostidenticalinpatientswithprimaryandsecondarysyphilis(P>0.05),aswellasbetweendif-ferentRPRtiters(P>0.05).(3)Aftertherapy,thelevelofIL-2decreasedmarkedly(P<0.05),whilethatofIL-10increase(p>0.05).(4)AsignificantcorrelationwasfoundbetweentheserumlevelsofIL-2andIL-10(r=0.5385P<0.05).Conclusions:Th1up-regulationoccursinpatientswithearlysyphilis,andplaysanactiveroleinfightingagainstTPinfection.
简介:报告3例以生殖器疱疹为首症的艾滋病。例1,女,35岁,外阴溃疡伴疼痛2月余;例2,女,27岁,外阴肛周溃疡反复4月,伴发热咳嗽气促、体重下降;例3,男,37岁,尿道口反复糜烂1年,龟头包皮阴茎多处糜烂4天。3例患者均表现为多发严重难以愈合的糜烂溃疡,经免疫印迹法确诊HIV-1抗体阳性,CD4^+T细胞、CD4^+/CD8^+比值明显下降,HSV-Ⅱ-DNA定量检测阳性。提示对以多发难以愈合的溃疡为表现的生殖器疱疹患者,应仔细询问病史并进行必要的检查以排除艾滋病。
简介:TostudytheroleofTh1/Th2cytokinesinthepathogenesisofrecurrentgenitalherpes(RGH),andtobetterunderstandtherelationshipbetweenthem.Methods:Atwo-colorimmunofluorescentstainingofcellsurfaceantigenandintracellularcytokinesforflowcytometricanalysiswasusedforCD3,IL-2,IL-10,IL-12,IFN-yandTNF-ainCD3^+T-lymphocytesinactivatedperipheralbloodmononuclearcellsofpatientswithRGH.Results:Comparedtocontrols,patientswithRGHshowedfewerCD3^+Tcells(P<0.05)andIL-2producingandIFN-7producingTcells(P<0.02andP<0.001,respectively)afterinvitrostimulationwithPMAandionomycininthepresenceofaproteintransportinhibitor.MoreIL-10producingandIL-12producingTcellswerefoundinpatientswithRGH(P<0.01).TherewasnosignificantdifferenceinthenumberofTNY-αproducingcellsbetweenRGHpatientsandcontrols(P<0.05).Conclusion:RGHpatientsshowedrelativelymoreTh2cytokines.TheimbalancebetweenThlandTh2cytokinesresultsininhibitoryeffectsonaseriesofcell-immuneresponses,whichmayplayanimportantroleinthepathogenesisofRGH.
简介:巴西天疱疮(FS),一种地方性落叶型天疱疮(PF),是以抗桥粒核心糖蛋白-1自身抗体阳性为特点的自身免疫性大疱性疾病,之前该病主要集中在巴西MatoGrossodoSul的LimaoVerde地区,,在FS患者的血清中亦可检测出抗桥粒核心糖蛋白-3(Dsg3)抗体,为进一步确定该病的血清学、地域分布、临床流行病学特点,作者试图应用ELLSA法检测生活在该地区及非本地人的正常个体的血清中抗Dsg3自身抗体。146例来自Li-maoVerde的正常人中有53例(占36%)检测到抗Dsg3自身抗体,而来自周边地区的140例正常人中只有8例(占6%),检测出的阳性率比例与该高发区域的距离呈现显著性的相关趋势。(P<0.001)。作者的血清流行病学调查支持FS发病中触发了抗体反应的环境因素很可能就位于该地,也同意来自Brasilia合作研究者所报道的观点,即可能发展为FS的危险人群也可能有发展成地方性寻常性天疱疮的危险。巴西地方性天疱疮患者抗桥粒核心糖蛋白-3抗体检测@Hilario-VargasJ.@DasherD.A.@L.A.Diaz$DepartmentofDermatolo...
简介:报告2例上皮样血管瘤,分别为18岁女性和10岁男性患者,临床表现均为皮肤出现丘疹、结节、质硬肿物。病理表现均为真皮浅层血管增生、扩张,血管内皮细胞肿胀,凸出管腔,形成墓碑状,真皮下层血管增生,管周不等量淋巴组织细胞、嗜酸性粒细胞浸润,并可见淋巴滤泡形成。诊断符合上皮样血管瘤。并对其病因、临床特征、诊断和治疗进行综述。
简介:Objectiwe:InordertodetecttheroleofmonocytesinHSV-2infection,westudiedtheeffectofherpessim-plexVirus-2infectionontheproductionoftumorne-crosisfactor(TNF-α),interleukin-6(IL-6)secretedbymonocytes.Methods:MonocyteswereinfectedbyHSV-2(333Strain).Culturesupernatantswerecollectedat1,3,5,7dayspost-infection.ThelevelsofTNF-α,IL-6weremeasuredbyenzyme-linkedimmunosorbentas-say(ELISA).Results:ThelevelsofTNF-αsecretionbymono-cytessignificantlydecreasedonfirstdaypost-infection.ThelevelsofIL-6significantlydecreasedonfirstandthirddayspost-infection,andthengradu-allyincreasedtothecontrolonseventhdaypost-infection.Conclusions:TNF-αandIL-6productionbymono-cyteswasinhibitedduringHSV-2infection.Thepro-ductionofcytokinesmayplayanimportantroleinherpessimplexviurs-2pathogenicityandimmunity.
简介:Objective:ThisstudyanalyzedtheTlymphocytesandThl/Th2typecytokineprofileshiftintheperipheralbloodofpatientswithrecurrentgenitalherpes(RGH).Methods:Immunofluorescentstainingofcellsurfaceantigenandintracellularcytokines(IL-2,IL-4,IL-12,IFN-r)inperipheralbloodfrom20RGHpatientsand10controlswereanalyzedusingflowcytometrictechniques.Results:RGHpatientshadsignificantlylowerlevelsofCD3^+Tcells,CD4^+TcellsandCD4^+T/CD8^+Tcellsratiocomparedtocontrollevels(P<0.001),andIL-2-producing,IFN-r-producingandIL-12-producingTcellswereincreasedinRGHpatients(CD4^+T:P<0.001,CD8^+T:P<0.05respectively),whereasIL-4-producingTcellswereincreasedinRGHpatientscomparedtocontrols(CD4+T:P<0.05;CDS^+T:P<0.001respectively).Conclusions:RGHpatientshaveTlymphocytesubsetvariationsandThl/Th2cytokinechanges.TheincreaseinTh2cellsThl/Th2imbalancemayhaveimportantimplicationsforRGHpathogenesis.
简介:目的:检测着色芽生菌病患者皮损Foxp3mRNA的表达水平及Foxp3蛋白在皮损中的表达部位,探讨其在着色芽生菌病慢性感染中的作用。方法:收集20例着色芽生菌病患者皮损及20例正常对照皮肤组织,实时荧光定量RT-PCR检测Foxp3mRNA的表达水平,免疫组化法检测Foxp3蛋白的表达部位,并进行比较。结果:实时荧光定量RT-PCR结果显示,与正常对照皮肤比较,着色芽生菌病皮损Foxp3mRNA的相对表达量为(4.34±0.49),差异有统计学意义(t=12.12,P<0.05);免疫组化结果显示Foxp3蛋白在着色芽生菌病皮损真皮层高表达,定位于细胞核及胞质内,呈棕黄色颗粒;正常皮肤组织不表达或少量表达。结论:着色芽生菌病患者皮损内Foxp3的高表达提示Treg细胞增多,其增多可为病原体免疫逃逸提供条件,可能与着色芽生菌病慢性感染有关。
简介:Objective:TostudytheexpressionofFasandBcl-2proteinsonTlymphocytesubsetsintheperipheralbloodofrelapsingpatientswithcondylomaacuminatum(CA)andhealthycontrols.Methods:Flowcytometry(permeabizationandstainingprocedurewithconjugatedantibodies)wasused.Results:WeobservedthattheexpressionofFasproteinonCD4^+TlymphocytesubsetofCApatientswassignificantlyhigherthanthatofhealthycontrols(P<0.01).Conclusions:IncreasedexpressionofFasproteinonCD4^+Tlymphocytesubsetmaybeacauseofde-creasedpercentageofCD4^+Tlymphocytesubset.ThisinducestheincreasedratioofCD4^+/CD8^+.