简介:英国一名设计师用玻璃制作了一辆可自动驾驶的'小卧车'。从外表看,这辆车的外壳就像是教堂的穹顶,五彩缤纷.和一般车辆不同的是,这辆小车是专为夜间旅行设计的,它的内部仅有一部导航设备和一张小床。当乘客在床上休息时,车子能够自动驶往目的地。设计师说,车辆不应该只是一件单纯的运输工具,还应该是一种轮子上的生活空间。
简介:Inordertoacknowledgethemulti-infectiondataofSTDpatientsandimprovetheprophylaxisandtherapyforSTDs,297patientsand30healthypeoplewereexaminedusingtheHSV-2plasmaantibody.TheresultsshowedthatallkindsofSTDpatientswereinfectedbyHSV-2indifierentratios.thehighestratiooccurringinsyphilispatients.
简介:摘要目的比较单纯性疱疹病毒(HSV)抗原和HSV-2型IgM抗体检测法诊断生殖性疱疹感染的临床效果。方法回顾性分析我站收治的188例生殖性疱疹疑似病例经直接免疫荧光法(DFA)检测疱液样本中的HSV抗原和ELISA法检测血清中的HSV-2IgM的检测结果,以免疫印迹法(WB)为标准,比较HSV-2IgM抗体检测法和DFA敏感度及特异性。结果188例患者确诊106例为阳性,其中原发感染30例,复发感染76例;在原发感染诊断中HSV-2IgM抗体检测法与DFA敏感度和特异性比较,差异无统计学意义(P>0.05);在复发感染诊断中HSV-2IgM抗体检测法与DFA敏感度比较,差异具有统计学意义(P<0.01);HSV-2IgM抗体检测法与DFA总敏感度比较,差异具有统计学意义(P<0.01)。结论DFA反应迅速、操作简单,在生殖性疱疹感染诊断中敏感度和特异性均较高;HSV-2IgM抗体检测法对于原发感染诊断敏感度和特异性较高,可将两种方法结合诊断效果更佳。
简介:摘要目的本研究从血清学及临床保护角度探讨单纯疱疹病毒1型(herpes simplex virus type 1,HSV-1)和HSV-2免疫交叉反应的特征,以期为控制及预防这两种病毒引起的疾病提供数据资料。方法HSV-1减毒株M3免疫小鼠,检测其诱导产生以中和抗体为指征的特异性免疫应答情况。免疫28 d后分别用HSV-1野毒株和HSV-2野毒株经不同途径对小鼠进行攻击感染,观察M3免疫小鼠抵御HSV-1/2病毒感染的情况。结果HSV-1减毒株M3免疫小鼠不能诱导产生特异性的抗HSV-2中和抗体,免疫28 d后接受不同途径的HSV-2攻击,病毒载量显著增加,但未出现明显的异常临床表现,同时组织病理损伤也仅表现为较轻微的炎性反应。HSV-1减毒株M3免疫小鼠能够诱导产生特异性的抗HSV-1中和抗体,并且在HSV-1野毒攻击后表现出明显的保护效果。结论HSV-1减毒株M3免疫小鼠后所诱导的免疫应答对HSV-1野毒株感染攻击表现出以中和抗体为特征的、可限制病毒在体内增殖的免疫保护作用,然而对HSV-2野毒株攻击则表现出不以抗体形式中和病毒而是以控制病毒的增长为主要模式的临床交叉免疫保护能力。
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:ToexploretheantiviraleffectandmechanismofpolysaccharidefromSpirulinaplatensis(PSP)onherpessimplexvimstype2(HSV-2),astandardstrainofHSV-2(333strain)wasusedtoinvestigatetheantiviraleffectofPSPinvitro.PSPinvariousconcentrationswasappliedtodifferentstagesofHSV-2replicationcycle.Finally,thevirusinfectivity(TCID50),cytopathiceffect(CPE),andMTTstainingmethodforviablecells(MTTassay)wereusedasmarkerstoevaluatetheeffectofPSPonHSV-2.ThequantityofHSV-DNAwasdetectedbyreal-timefluorescencequantitativePCR(FQ-PCR).TheHSV-2infectedVerocellultrastructureswereobservedbytransmissionelectronmicroscopy(TEM).TheresultsshowedthatPSPhadlittlecytotoxiceffectonVerocells,itcouldnotdirectlyinactivateHSV-2infectivity.PSPnotonlyinterferedinadsorptionofHSV-2toVerocellsbutalsoinllibitedHSV-2biosynthesisinthecells.FQ-PCRresultsshowedthattheinhibitoryrateonHSV-DNAalsoincreasedinadose-dependentandtime-dependentmanner.TEMalsoconfirmedthatPSPexhibitedpronouncedinhibitoryeffectonHSV-2.Inconclusion,theantiviraleffectofPSPonHSV-2maybeattributedtotheinhibitionofvimsadsorption,vimsreplicationandsynthesisincells.
简介:Inviewofthecurrentgesturerecognitionalgorithmbasedonskincolorsegmentationisnotflexibleandhasweakresistancetotheenvironment,thispaperputsforwardanewmethodofskincolormodelingtoimprovetheadaptabilityofgesturesegmentationwhenitfacetodifferentstates.ThemodelingbuiltbydoublecolorspaceinsteadofonlyoneiscompatiblebothinYCbCrandHSVcolorspacetotrainingtheGaussianmodelwhichcanupdatethethresholdvalueforbinarization.Finally,thispaperdesignedanaturalgesturerecognitionandinteractivesystemsbasedonthedoublecolorspacemodel.Ithasshownthatthesystemhasagoodinteractiveexperienceindifferentenvironments.
简介:AbstractIntroduction:Genital herpes is one of the most common sexually transmitted infections worldwide. Most genital herpes occur on the genitalia, perineum, buttocks, upper thighs, or perianal areas. However, there were reports of rare cases of genital herpes on urethral orifice.Herein, we report a case of a patient who was diagnosed with urethral orifice genital herpes, a place likely to be ignored.Case presentation:A 53-year-old woman presented with vagina pruritus at first, with subsequent burning sensation around urethra. Mycostatin and mycospor were administered for the treatment of the pruritus. Then levofloxacin was prescribed. Finally, the patient was given treatment with acyclovir. Different from other cases, the investigation showed herpes simplex virus type 1 DNA positive and herpes simplex virus type 2 DNA negative by PCR. The patient was therefore diagnosed with genital herpes.Discussion:Most genital herpes happen on the genitalia, perineum, buttocks, upper thighs, or perianal areas. Few cases have been reported that genital herpes occurred on urethral orifice till now.Conclusion:If there is no typical symptoms that patient present with herpes simplex virus type 1 or 2 positive, urethral orifice genital herpes should be considered.
简介:摘要目的了解川南地区女性非淋菌性尿道炎(NGU)患者单纯疱疹病毒(HSV)感染情况。方法采用荧光定量聚合酶链反应(FQ-PCR)技术对134例临床诊断为NGU的女性患者和62例参加健康体检妇女生殖道分泌物进行HSV检测。结果134例女性NGU患者中,检测出HSV阳性者36例,阳性率26.87%(36/134);62例健康妇女体检中,HSV阳性者3例,阳性率4.84%(3/62),患者组与对照组比较差异有显著意义(x2=107.45,P<0.05)。结论NGU女性患者容易合并HSV感染,FQ—PCR快速、简便,特异性高,灵敏度强,操作简便,此法用于检测HSV,可诊断且可分型,有利于UGN患者合并HSV感染的早期诊断和及时治疗。
简介:摘要目的分析本地区361例疑似生殖器疱疹(GH)患者单纯疱疹病毒Ⅱ型(HSV-2)脱氧核糖核酸(DNA)检测情况,比较不同性别、年龄和不同季节阳性检出率的差异,为防治HSV-2感染提供参考。方法对2017年8月-2018年1月在我院门诊就诊的疑似GH患者,采取实时荧光定量聚合酶链反应检测HSV-2DNA,对检测结果进行统计分析。结果患者男性占72.30%,女性占27.70%,平均年龄(39.38±13.38)岁,总阳性检出率36.29%,其中男性组阳性检出率34.87%,女性组阳性检出率40.00%,两者差异无统计学意义(P>0.05);不同年龄段阳性检出率不同,但差异无统计学意义(P>0.05);秋季组阳性检出率34.16%,冬季组阳性检出率38.99%,两者差异无统计学意义(P>0.05)。结论本地区HSV-2感染集中于性活跃人群,男女感染比例相当,不同年龄和秋冬两季阳性检出率差异不显著。因此,对所有高危人群及感染性伴侣要随时进行HSV-2的筛查和防治。
简介:建立一种检测HSV2的实时定量PCR,而实时定量PCR检测出HSV2DNA阳性标本有l9例,HSV2的FQPCR定量检测 
简介:Objectiwe:InordertodetecttheroleofmonocytesinHSV-2infection,westudiedtheeffectofherpessim-plexVirus-2infectionontheproductionoftumorne-crosisfactor(TNF-α),interleukin-6(IL-6)secretedbymonocytes.Methods:MonocyteswereinfectedbyHSV-2(333Strain).Culturesupernatantswerecollectedat1,3,5,7dayspost-infection.ThelevelsofTNF-α,IL-6weremeasuredbyenzyme-linkedimmunosorbentas-say(ELISA).Results:ThelevelsofTNF-αsecretionbymono-cytessignificantlydecreasedonfirstdaypost-infection.ThelevelsofIL-6significantlydecreasedonfirstandthirddayspost-infection,andthengradu-allyincreasedtothecontrolonseventhdaypost-infection.Conclusions:TNF-αandIL-6productionbymono-cyteswasinhibitedduringHSV-2infection.Thepro-ductionofcytokinesmayplayanimportantroleinherpessimplexviurs-2pathogenicityandimmunity.
简介:客观;在忍受肝癌症的老鼠调查鼠科的IL-12基因和HSV-TK基因治疗的synergistic反肿瘤效果。方法:老鼠肝癌症MM45T李(H-2d)房间是有包含IL-12基因或HSV-TK基因的retroviral向量的transfected插入修改基因的肝癌症房间,MM45TLi/IL-12和MM45TLi/TK,与IL-12和TK的稳定的表示被获得。Balb/c老鼠与2X105MM45T李房间皮下地被接种。当肿瘤到达了0.5鈥?.0厘米的一种尺寸时,MM45T.Li/TK房间的混合物照耀and60Co的MM45TLi/IL-12房间intratumoraly被注射。Ganciclovir(GCV)是注射ip(40mg.kg?1.d?1)为10天。Intratumoral注射照耀of60Co的MM45TLi/IL-12房间分开在一个星期内被重复两次。有远肿瘤的老鼠根据一样的协议被对待。怒气房间的CTL活动是测量by51Cr版本试金和由染色的immunohistochemical渗入淋巴细胞的肿瘤的显型。结果:在与MM45T对待的老鼠,Li/IL-12或MM45TLi/TK+GCV个别地在肿瘤生长,而是两个都不导致了中等减小能根除肿瘤完全,当时在加GCV与MM45TLi/IL-12和MM45TLi/TK细胞的混合物对待的60%老鼠,完全的肿瘤回归被观察,没有为二个月的肿瘤复发。远肿瘤的生长也在同样对待的老鼠显著地被禁止。大多数收到的老鼠加GCV联合了基因治疗有的丰富的CD4+,CD8+T淋巴细胞渗入。他们的CTL活动比在老鼠显著地高收到的单个基因治疗。有加GCV的IL-12基因和HSV-TK基因的结论联合治疗为老鼠肝癌症是有效的。