简介:Objective:ToexploretherelationshipbetweenquantitativeTreponemapallidumDNA(TP-DNA)PCRtestingandtheToludineRedUnheatedSerumTest(TRUST)inpatientswithsyphilisbeforeandaftertreatment,andevaluatetheclinicalvalueofquantitativeTP-DNAtestinginthediagnosisandtreatmentevaluationofsyphilis.Methods:29patientswithprimary(12cases)orsecondary(17cases)syphilis,whometthecriteriasetforthisstudywererecruitedassubjects.Allpatientsweretreatedwith2.4millionunitsbenzathinepenicillinIMweeklyfor3weeks.QuantitativetestsofTP-DNAinthepatients'plasmawereperformedusingFQ-PCRbeforeandafterthetreatment.SerologictestsincludingTRUSTandTPPAwerealsoperformed.Results:Beforethetreatment,9outof12primarysyphilispatients(75%)andallsecondarysyphilispatients(17/17)testedpositiveforTreponemapallidum(TP)byTP-DNAtesting.TheaveragequantitativetestvaluesofTP-DNAinprimaryandsecondarysyphilispatientswere(3.38±2.34)×10^4and(5.73±1.33)×10^6copies/ml,respectively.Afterthreemonthsoftreatment,1ofthe9primaryand5outof17secondarysyphilispatientswerepositiveuponTP-DNAtesting,respectively.TheaveragequantitiesofTP-DNAwere2.01×10^2copies/mlinprimaryand5.87×10^2copies/mlinsecondarysyphilispatientswithpositiveTRUSTandTP-DNAtests,and3.09×10^2copies/mlforthosewithnegativeTRUST,respectively.Afterninemonthsoftreatment,alltheprimaryandsecondarysyphilispatientswerenegativeuponTP-DNAtesting,whileallprimaryand14of17(82.35%)secondarysyphilispatientsshowednegativeTRUSTresults.Conclusion:ThattheresultsofTP-DNAtestsarenotconsistentwiththoseofTRUSTbeforeandaftertreatmentindicatesthatquantitativeTP-DNAtestingmayhavevaluableclinicalsignificanceintheearlydiagnosisandevaluationoftreatmentregimensforsyphilis.
简介:Inordertoacknowledgethemulti-infectiondataofSTDpatientsandimprovetheprophylaxisandtherapyforSTDs,297patientsand30healthypeoplewereexaminedusingtheHSV-2plasmaantibody.TheresultsshowedthatallkindsofSTDpatientswereinfectedbyHSV-2indifierentratios.thehighestratiooccurringinsyphilispatients.
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.
简介:Objective:Toconstructarecombinantplasmidcontainingtheoutermembraneprotein2(Omp2)geneofChlamydiatrachomatisandexpressOmp2inE.coli.Methods:Theomp2geneofC.trachomatisserovarDwasclonedintopQE30vectorfollowingPCRamplificationfromgenomicDNA.E.coliM15transformantswereinducedtoexpressthefusionproteinbyIPTGandtheproductwasidentifiedbySDS-PAGEandWesternblot.Results:ConfirmedbyenzymecleavageanalysisandDNAsequencing,acorrectrecombinantplasmidpQE30/omp2wasconstructed.Thefusionproteinfromthetransformantswasapproximately60kDainsizeinSDS-PAGEanalysis,whichcouldspeciallyreactwithanti-6×HismousemonoclonalIgGantibodies.Conclusion:WesuccessfullyexpressedOmp2inE.coilM15,providinganefficientandsimplesystemforassayingtheimmunologicalpropertiesofOmp2.
简介:Objective:Tostudythecellularimmunitystatusofpatientswithrecurrentgenitalherpes.Methods:Serumlevelsofinterlukin-2anditssolublereceptorandinterlukin-6weremeasuredbyELISAin34patientswithrecurrentgenitalherpes.Results:SerumlevelsofIL-2andIL-6weresignificantlydecreasedinpatientscomparedtohealthycontrols(P<0.01),andthelevelofsIL-2Rwassignificantlyincreasedinpatientswithrecurrentgenitalherpes(P<0.01).Therewerenosignificantdifferencesinallvariablesamongstpatientsregardingrelapsestageandremissionstage(P>0.05).Conclusion:Therewasacellularimmunedeficiencyinpatientswithrecurrentgenitalherpes.
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: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:Objective:TostudytheexpressionofFasandBcl-2proteinsonTlymphocytesubsetsintheperipheralbloodofrelapsingpatientswithcondylomaacuminatum(CA)andhealthycontrols.Methods:Flowcytometry(permeabizationandstainingprocedurewithconjugatedantibodies)wasused.Results:WeobservedthattheexpressionofFasproteinonCD4^+TlymphocytesubsetofCApatientswassignificantlyhigherthanthatofhealthycontrols(P<0.01).Conclusions:IncreasedexpressionofFasproteinonCD4^+Tlymphocytesubsetmaybeacauseofde-creasedpercentageofCD4^+Tlymphocytesubset.ThisinducestheincreasedratioofCD4^+/CD8^+.
简介:Objective:Tostudytheexpressionofactivatedepi-dermalgrowthfactorreceptor(EGFR)andtranscrip-tionfactorE2F(E2F)inCondylomaAccuminata(CA)patients.Methods:ImmunofluorescenttechniqueswereusedtoinvestigatetheexpressionofactivatedEGFRandE2FinCApatients.Results:TheexpressionofactivatedEGFRonthemembraneofepithelialcellsinCAlesionswassig-nificantlygreatercomparedtoexpressionleversinthecontrolgroup(P<0.01).Moreover,theco-expres-sionofactivatedEGFRandE2Fwassignificantlyin-creasedcomparedtothecontrolgroup(P<0.01).Conclusion:Ourobservationssuggestthatthein-creaseinactivatedEGFRexpressionmaystimulatehyperplasiainCApatientsthroughtheactivationoftranscriptionfactorE2F.
简介:Objective:TostudytheeffectoftraditionalChinesemedicineantiviralcapsulesinthetreatmentofgenitalherpes.Methods:Usingfemaleguineapiggenitalherpesastheanimalmodel,thisstudyusedoraladministrationoftwoformulationsofantiviralcapsules(AC)andobservedtheeffectonvaginalHSV-2titersandvulvarsymptoms.CellcultureswerealsousedtoexaminethedirectinactivationofHSV-2bytheantiviralcapsulesandthesuppressionofHSV-2viathreedrugadministrationmethods.Results:Therewasnosignificantdifferenceofmeanvaginalvirustitersbetweentheantiviralcapsulegroupsandthatofthepositiveacyclovir(ACV)control(P>0.05).Meanvulvarsymptomscoresofthetwoantiviralcapsulegroupswerealsosignificantlylowerthanthatofthesalinenegativecontrolgroupondays2,3,5,7and8(P<0.05)andsimilartothatoftheACVcontrol(P>0.05).CellcultureshowedtheminimuminhibitoryconcentrationsofantiviralcapsulesNo.1andNo.2were0.390625mg/mland1.5625mg/ml,respectively.Conclusion:ThetraditionalChinesemedicineantiviralcapsuleshadsuppressiveeffectsonHSV-2inbothanimalmodelGHandinvitrocellculture.
简介:高免疫球蛋白E综合征(HIES)是一种罕见的免疫缺陷性疾病,表现为血清IgE水平升高、皮肤湿疹、反复皮肤感染和特征性的肌肉骨骼表现。作者报道2例在本院就诊的患者并回顾当前文献。患者1是一18个月大的非裔美国男孩,伴有复发性葡萄球菌冷脓肿、肺炎和菌血症。该患者皮肤严重湿疹化,最终并发疱疹性湿疹。在选用敏感抗生素环孢素A(5mg/kg)短期治疗全身性感染后,皮炎改善,随后改为长期口服甲氧苄啶一磺胺甲恶唑。患者2是一15岁高加索男孩,长期患有HIES。该患者从3岁开始即维持每周3次注射1干扰素和每月静脉注射免疫球蛋白,并预防性应用抗生素和小剂量氟康唑。
简介:目的探讨细胞因子IL-2和IL-10在早期梅毒发病中的作用。方法采用ABC-ELISA技术检测48例早期梅毒患者血清IL-2和IL-10水平。结果(1)早期梅毒患者血清IL-2水平明显高于正常对照组,IL-10水平明显低于正常对照组(P值均<0.001)。(2)一期梅毒患者血清IL-2和IL-10水平与二期梅毒无明显差异(P值均>0.05),不同RPR滴度间IL-2和IL-10水平无明显差异(P值均>0.05)。(3)治疗后IL-2水平明显下降(P<0.05),IL-10水平上升不明显(P>0.05)。(4)IL-2和IL-10之间呈正相关(r=0.5385,P<0.05)。结论早期梅毒出现Thl上调,在抵御TP感染过程中发挥积极作用。