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.
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:寻常狼疮是皮肤结核中最常见的类型,约占所有皮肤结核患者的半数。本病易侵犯儿童和青少年,好发于面部,影响容貌。我们用异烟肼、乙胺丁醇和利福平联合治愈寻常狼疮2例,报告如下。
简介:目前,铬过敏已与Cr(Ⅵ)过敏同义。然而,真正接触到的皮革制品中的铬可能包括Cr(Ⅲ)及Cr(Ⅵ)。本研究中,作者调查了一系列患者对Cr(Ⅲ)及Cr(Ⅵ)的反应性,以分析足部湿疹/接触皮革与Cr(Ⅲ)反应性的关系。2002年3月至2004年12月间,作者对连续收治的2211例疑有变态反应性接触性皮炎的患者进行斑贴试验,斑贴制剂为0.5%重铬酸钾[Cr(Ⅵ)]及13%三氯化铬[Cr(Ⅲ)]。共有71例患者(3.2%)对Cr(Ⅵ)发生阳性反应,其中31例同时对Cr(Ⅲ)发生阳性反应。没有Cr(Ⅵ)阴性患者对Cr(Ⅲ)发生阳性反应。作者发现Cr(Ⅵ)阳性同时伴发Cr(Ⅲ)阳性或可疑阳性的患者发生足部皮炎的危险性较仅Cr(Ⅵ)阳性而Cr(Ⅲ)阴性的患者高。危险性增加不是因为对Cr(Ⅵ)的敏感度较高。据报道皮革最常作为铬皮炎的可疑病因(54%)。然而,患有足部湿疹及对Cr(Ⅲ)发生阳性或可疑反应的Cr(Ⅵ)过敏者常对其他鞋部变应原发生阳性反应。因而,Cr(Ⅲ)过敏是对多种鞋部变应原过敏的一部分。
简介:目的:研究TGF-β1和MMP-2在病理性瘢痕表皮中的表达及其意义。方法:运用免疫组化法检测TGF-β1和MMP-2在病理性瘢痕表皮中的表达,并与其在表浅性瘢痕、正常皮肤表皮中的表达进行比较,分析其规律。结果:TGF-β1在病理性瘢痕表皮角质细胞中的阳性率及表达强度均较表浅性瘢痕和正常皮肤明显增高(P值均〈0.05),MMP-2在病理性瘢痕表皮中的表达也出现增强,但与表浅性瘢痕、正常皮肤表皮比较,阳性率的差异不具有统计学意义(P〉0.05),表达强度间的差异具有统计学意义(P〈0.05)。结论:TGF-β1和MMP-2在病理性瘢痕表皮中出现不同程度的表达增高,提示它们可能参与了病理性瘢痕的形成,表皮可能是多种细胞因子的重要来源。
简介:目的进一步验证抗白念珠菌芽管单克隆抗体MAb03.2C1-C2(MAb)的特异性及在临床中的应用价值,为今后的实验研究和应用性研究打下基础。方法用白念珠菌标准株,重庆、九江两地不同地域中临床分离的白念珠菌、非白念念珠菌、常见的酵母菌和实验室保存的金黄色葡萄球菌、绿脓假单胞菌做抗原包被,间接免疫荧光(indirectimmunofluorescence,ⅡF)方法,对单抗MAb03.2C1-C2特异性进行分析。取临床口腔及阴道念珠菌病患者真菌涂片菌丝阳性的标本,MAb03.2C1-C2作为I抗,用ⅡF方法检测。结果200例被检临床病例中,84例口腔念珠菌病和51例阴道念珠菌病真菌涂片ⅡF试验阳性的标本中,最终鉴定均为白念珠菌。38例口腔念珠菌病和27例阴道念珠菌病中标本最终鉴定为非白念念珠菌或新型隐球菌。MAb03.2C1-C2仅与白念珠菌芽管或菌丝特异性地结合,与白念珠菌的孢子及其他念珠菌种的假菌丝和孢子均不发生结合,也不与金黄色葡萄球菌发生反应。61例标本8种临床分离的非白念念珠菌的孢子和菌丝不能特异性地与单抗结合;分离的4例新型隐球菌及金黄色葡萄球菌、绿脓假单胞菌均不能与该单抗相结合。结论进一步证实了MAb03.2C1-C2对白念珠菌芽管高度专一的特异性,并可用于口腔念珠菌病及阴道念珠菌病真菌涂片中白念珠菌的检测。
简介:Inordertoacknowledgethemulti-infectiondataofSTDpatientsandimprovetheprophylaxisandtherapyforSTDs,297patientsand30healthypeoplewereexaminedusingtheHSV-2plasmaantibody.TheresultsshowedthatallkindsofSTDpatientswereinfectedbyHSV-2indifierentratios.thehighestratiooccurringinsyphilispatients.
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:目的:盐酸伐昔洛韦联合重组人干扰素a-2b治愈泛发性生殖器疱疹1例。方法:盐酸伐昔洛韦片口服,次0.3g,1日2次,空腹服用,间歇治疗10个月;重组人干扰素a-2b100万U局部封闭,3天1次,连用10个月;结果:盐酸伐昔洛韦片联合重组人干扰素a-2b已治愈患者外阴部及阴道各处的生殖器疱疹。
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:目的:研究舌下含服粉尘螨滴剂对慢性荨麻疹(chronicurticaria,CU)患者外周血Thl/Th2的细胞因子(IL-2、IFN-γ、IL-4)的协调作用。方法:选择确诊为CU的患者75例作为观察对象,进行舌下含服粉尘螨滴剂治疗半年,在治疗前后分别取血清测定IL-2、IFN-γ、IL-4的表达量,并与对照组75例进行比较。结果:治疗前,CU患者的IL-2、IFN-γ、IL-4的表达量均高于正常对照组(P值均〈0.05)。治疗后IL-2、IFN-γ表达分别增加了26.18%、29.81%,IL-4表达降低了24.5%,与治疗前比较,差异均有统计学意义(P值均〈0.05)。结论:舌下含服粉尘螨滴剂治疗CU,可调节IL-2、IFN-γ、IL-4的表达水平,说明舌下含服粉尘螨滴剂可调节Thl/Th2细胞表达的细胞因子功能,进而缓解CU患者的临床症状。