简介:目的通过对尖锐湿疣(CA)患者外周血T淋巴细胞亚群及胞内细胞因子分泌水平的研究,探讨尖锐湿疣可能的免疫机制。方法采用三色和双色荧光抗体染色技术经流式细胞仪检测20例CA患者外周血T淋巴细胞亚群及CD4T细胞、CDS8~-T细胞内IL-2、IL-4、IL-12、IFN-γ染色阳性细胞百分率。结果CA患者CD3~-T细胞、CD4~+T细胞、CD4~+/CD8~+比值明显低于正常对照组(P
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: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.
简介:背景:最近的研究表明氧化应激可能参与了慢性特发性荨麻疹(CIU)的发病机制。已经证实地氯雷他定在体外有抗氧化活性。作者评估地氯雷他定对CIU患者氧化应激指标的效应。方法:采集10例CIU患者服用地氯雷他定前和服药4周后的血标本,并采集10名健康志愿者血标本作为对照。采用氧化二氯荧光素荧光分光光度法检测患者和对照组样本血小板中的氧化应激(ROS)产物,采用黄嘌呤一黄嘌呤氧化酶系统检测超氧化物歧化酶(SOD)活性。结果:与对照样本相比,CIU患者基线时的ROS浓度及SOD活性显著升高,经地氯雷他定治疗后患者血标本中的ROS水平及SOD活性有所下降(P〈0.005)。结论:这些初步结论表明地氯雷他定在体内也有抗氧化作用。
简介:背景:维生素D是骨钙化所必需的,其缺乏可能会导致骨折和骨软化症。地域或种族因素可能会影响皮肤合成维生素D。作者假设角质化的主要变化同样可能影响皮肤合成维生素D。目的:为了探讨9例非大疱性先天性鱼鳞病患者的钙调性激素、骨再造参数和骨密度(BMD)。患者和方法:6例欧洲患者和3例北非患者。4例长期接受阿维A治疗。所有患者在冬季作了一个全面的生物学检查包括血清和尿的钙、磷和钙调性激素犤全段甲状旁腺激素(iPTH)、25-羟基维生素D(25-(OH)D)和1,25-二羟基维生素D(1,25-(OH)2D)犦,骨形成和再吸收标记,其中4例患者在夏季重复这些检查。所有患者尚测量BMD。结果:所有患者25-(OH)D显著缺乏,明显低于域值下限25nmol/L。北非的患者缺乏25-(OH)D比欧洲患者更严重,可能是由于皮肤色素沉着差异。欧洲患者iPTH正常,而北非患者iPTH升高。日光照射后仅有1例患者维生素水平升高。骨形成和再吸收标记保持在正常水平。股骨颈骨密度测定显示2例年轻的北非女性患者接近骨病域值。未发现维甲酸影响维生素D代谢。结论:先天性鱼鳞病患者,尤其是皮肤色素深的患者有严重的维生素D缺乏。未来对这些患...