简介：Mycoplasmagenitaliumisthemaincausativeagentfornon-gonococcalandnon-chlamydialurethritis.P32istheputativesurface-exposedmembraneproteinofM.genitaliumandithassubstaintialidentityinaminoacidsequencewithadhesinproteinP30fromM.pnewnoniae.SinceM.pneumoniaemutantslackingP30proteinisdefectiveincytadherence,P32proteinhasbeenproposedtobeanessentialadhesinimplicatedintheadherenceofM.genitaliumtohostcells.TheprokaryoticexpressionvectorpET-30(+)/p32wasconstructedinthepresentstudy,andtherecombinantproteinwasexpressedinE.coliandpurifiedunderdenaturingcondition.Asdemonstratedbytheimmunoblottinganalysis,therecombinantproteincouldreactwithrabbitantiseraagainstM.genitalium,andadherenceinhibitionassayswerepetformedwithantiseraagainstthisrecombinantprotein.ItwasdemonstratedthatP32proteinapperaredtobeanadhesionproteinofM.genitalium,thusprovidingtheexperimentalbasisforbetterunderstandingofthepathogenesisofM.genitaliuminfectionandforthedevelopmentoftherelatedvaccinesagainsttheinfection.

简介：AIM:TodeterminetheassociationbetweenchlamydialconjunctivitisandgenitalinfectionbyChlamydiatrachomatis,MycoplasmagenitaliumandCandidaalbicans,inadditiontothepossiblerelationshipbetweenculturedbacterialpathogensandoculogenitalchlamydialinfection.METHODS:Thisstudywasperformedon100(50symptomaticand50asymptomatic)womenattendingtheGynecologicalandObstetricoutpatientclinicofAlzahrahospital,AlazharUniversity.Simultaneouslyaconjunctivalswabwastakenfromthesepatients.Polymerasechainreaction(PCR)wasdoneonDNAextractedfrombothvaginalandconjunctivalswabsamples.Cultureforbothvaginalandconjunctivalswabswasalsodone.RESULTS:Candidaalbicanswasthepredominantorganismisolatedbyculturein20%and40%ofconjunctivalandvaginalswabsrespectively.BythePCRmethod,ocularChlamydiatrachomatiswaspresentin60%ofsymptomaticwomen,whilegenitalChlamydiatrachomatisinfectionwaspresentin30%ofsymptomaticwomen.Theresultsofthismethodalsoindicatedthat25/50(50%)vaginalswabswerepositivewithPCRforCandidaalbicansversus15/50(30%)werePCRpositiveinconjunctivalswab.Mycoplasmagenitaliumwaspresentinonly10%ofvaginalswabs.ConcomitantoculogenitalPCRpositiveresultsforChlamydiatrachomatisandCandidaalbicanswere30%and28%respectively.CONCLUSION:OcularChlamydiatrachomatiswasassociatedwithgenitalChlamydiatrachomatisinahighpercentageofwomenfollowedbyCandidaalbicans.CulturedbacterialorganismsdonotplayaroleinenhancementofChlamydiatrachomatisinfection.