简介：目的研究单纯疱疹病毒2型(HSV-2)对人单核细胞表达HLA-Ⅱ类抗原(HLA—DR、HLA-DQ)的影响，探讨单核细胞及HLA-Ⅱ类抗原在单纯疱疹病毒2型感染中的作用。方法用单纯疱疹病毒2型(333株)感染人单核细胞，于感染后1、3、5、7天分别收集细胞，用APAAP法检洲单核细胞HLA—DR、HLA-DQ表达水平。结果单纯疱疹病毒2型感染后1天，单核细胞表达HLA-KR、HLA—DQ抗原水平明显降低，以后逐渐升高，至7天达到对照组水平。结论单纯疱疹病毒2型感染早期能抑制单核细胞表达HLA—Ⅱ类抗原，HSV-2抑制单核细胞表达HLA-Ⅱ类抗原可能是HSV-2入侵机体的手段之。HLA-Ⅱ类抗原在单纯疱疹病毒2型致病及免疫过程中可能起重要作用。

简介：Objective:ToinvestigatetheexpressionofHPV16mRNAinnormalhumankeratinocytestransfectedwithpSV2-neo/16.Firsthumankeratinocyteswereculturedintheserum-freemediumM154.Second,theplasmidpSV2-neo/16wastransfectedintothehumankeratinocytesusingatransfectingreagent.Third,RT-PCRandSouthernBlottingwereusedtodetecttheexpressionofHPV16mRNAandDNAinthetransfectedkeratinocytes,respectively.Results:TheexpressionofHPV16mRNAwassuccessfullyamplifiedandan110bpwasditectedbyRT-PCR.A7.9kbfragmentwasconfirmedinthetransfectedkeratinocytesbySouthernBlotanalysis.Conclusion:HPV16mRNAandDNAweresuccessfullydetectedinthehumankeratinocytes.

简介：目的观察单纯疱疹病毒2型(HSV-2)对单一核细胞产生肿瘤坏死因子α(TNF-α)和白介素-6(IL-6)的影响,探讨单一核细胞在HSV-2感染中的作用。方法用HSV-2(333株)感染单一核细胞,于病毒感染1,3,5,7日收集细胞培养上清液,用ELISA法检测TNF-a、IL-6的含量。结果HSV-2感染后1日,单一核细胞分泌TNF-α水平显著降低。HSV-2感染后1,3日,单一核细胞分泌IL-6水平显著降低,以后,病毒感染单一核细胞分泌TNF-α、IL-6水平逐渐增高,到第7日达到对照组水平。结论HSV-2能抑制单一核细胞分泌TNF-α和IL-6。而这两种细胞因子在HSV-2致病和机体免疫中起重要作用。

简介：目的研究复发性尖锐湿疣(condylomaacuminatum,CA)患者与正常对照者T细胞亚群Fas及Bcl-2蛋白的表达。方法采用流式细胞仪,结合抗体渗透染色法进行检测。结果CA患者外周血CD4T淋巴细胞亚群Fas蛋白的表达较正常人显著增加。结论CD4~+T细胞百分率下降与其高表达Fas蛋白有关。CD4~+/CD8~+比值下降主要是由于CD4~+细胞百分率下降所致。

简介：

简介：

简介：

简介：

简介：

简介：

简介：目的检测活化型表皮生长因子受体(EGFR)和转录调节因子E2F在尖锐湿疣中的表达。方法采用免疫荧光方法观察活化型EGFR和E2F在尖锐湿疣(CA)皮损中的表达情况。结果活化型EGFR在CA皮损角质形成细胞膜上的表达较正常对照组显著增强(P<0.01)。而且,活化型EGFR和E2F在CA皮损中的双重阳性表达较正常对照组显著增强(P<0.01)。结论活化型EGFR表达的增强导致核内转录因子的激活而参与CA的增殖病变。

简介：

简介：

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：

简介：Objective:Theaiminthisstudywastoidentifytheallelicfrequenciesofthechemokine(SDF1-3'A)andchemokinereceptor(CCR5△32,CCR5m303andCCR2-64I)genesresistanttoHIV-1infectionand/ordiseaseprogressioninindigenousChinesepopulations.Methods:ByusingQIAampDNABloodMiniKit,thegenomicDNAsampleswerepurifiedfromwholeperipheralbloodofhealthyindividuals(n=2067)fromHan,Uygur,MongolianandTibetanethnicgroups,aswellasHanpatientsincludingHIV-1carriers(n=330),patientswithothersexuallytransmitteddiseases(STDs,n=259)andintravenousdrugusers(IVDUs,n=125).TheallelicpolymorphismswereidentifiedbymeansofPCRorPCR-RFLPanalyses.ThesequencesofrandomlyselectedamplifiedPCRproductswerefurtherconfirmedbydirectDNAsequencing.Results:Themutantfrequencieswereidentifiedtobe0%-3.48%forCCR5△32,0%forCCR5m303,19.15%-28.79%forCCR2-64and19.10%-28.73%forSDF1-3'Aalleles,respectively,inChinesehealthyindividualsfromfourethnicgroups.Ourfindingsindicatedtheallelicfrequenciesvaryamongthedifferentethnicgroups.Furthermore,theHIV-1carriers,STDcasesandIVDUs(allofHanethnicity)werefoundtohavetheallelicfrequenciesof0%-0.19%(CCR5A32),0%(CCR5m303),19.31%-20.45%(CCR2-64)and25.61%-26.83%(SDF1-3'A)withminorvariationsintheirfrequenciesbetweenthepatientsandhealthyHangroups.TherewasnoCCR5-m303mutationfoundinanysubjectinthisstudy.Conclusion:TheexaminedsubjectsoffourChineseethnicoriginsshowedlowerfrequenciesofCCR5A32andCCR5m303alleles,buthigherfrequenciesofmutantCCR264IandSDF1-3'Aallelescomparedtothoseidentifiedinnorthern-EuropeanandAmericanCaucasians.ThesignificanceofthedifferentfrequenciesandpolymorphismsoftheaboveallelesinChinesepopulationsneedstobefurtherexaminedinHIV-1/AIDSdiseases.

简介：

简介：背景：依柏康唑是一种对皮肤浅部真菌病、念珠菌病和糠疹治疗有效的外用广谱咪唑类衍生物。既往研究显示依柏康唑治疗皮肤浅部真菌病较克霉唑更为有效。本试验旨在比较1％依柏康唑乳膏与2％咪康唑乳膏治疗皮肤浅部真菌病的有效性。方法：653例皮肤浅部真菌病患者纳入此多中心、双盲、随机临床试验，随机选用1％依柏康唑乳膏、每日2次或2％咪康唑乳膏、每日2次，连续4周。4周后根据真菌检查和临床症状评估有效性。结果：纳入本试验的653例患者中，360例基线真菌培养阳性，纳入有效性评估。临床显示接受依柏康唑治疗的患者有76．1％有效，而接受咪康唑治疗的患者有75．0％有效。治疗相关不良事件发生率分别为：依柏康唑0．91％，咪康唑0．92％，均不严重且较局限而短暂。