简介:Objective:Toamplifyantigengenesfrompatientswithhumanimmunodeficiencyvirustype1(HIV-1)inGuangdongProvinceforcandidateAIDSvaccinedesign.Methods:Viralnucleicacidwasisolatedfrom10HIV-1infectedindividuals'peripheralbloodcollectedduring1995-2000inGuangdongProvince.Theviralgagp24geneandenvgp120genewereamplifiedbynested-PCRandsequenced.ThehomologiesamongHIV-1isolateswerecomparedwithHIV-BLAST.Results:Among10HIV-1isolates,ninearehomologoustovirusesofsubtypeB,andoneishomologoustovirusesofsubtypeE.Conclusion:SubtypeBvirusesofHIV-1arepredominantlypresentinGuangdongProvince.
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:1临床资料患儿男,6个月,因“头顶部丘疹3个月”于2017年3月就诊。患儿者3个月前无明显诱因在头顶部出现个粟粒至绿豆大小淡红色丘疹,无自觉症状。之后皮损逐渐增大至豌豆大小,表面呈红白色。病程中皮损未出现水疱。患者为明确诊断来我科门诊就诊。既往史无特殊,否认外伤史,否认家族中有类似情况。体格检查:系统检查未见异常。皮肤科查体:患儿头顶部有1个豌豆大小淡红色丘疹,皮损中央无脐凹,活动度可,质地中度,无压痛见图1,其余部位未见明显类似皮损。诊断:黄色肉芽肿?实验室检查无明显异常。皮肤组织病理:真皮内可见数个小叶状、内生性结节,结节中有较多嗜酸性包涵体,与结节相连下方有1个囊性结构,囊壁为复层鳞状上皮,并可见颗粒层,囊内容物为大量层叠状角质物质及嗜酸性软疣小体,见图2~4。最后诊断:表皮囊肿伴传染性软疣。