简介：背景：紫外线照射后p53依赖的对DNA损害的反应与p33^ING1b基因有关，近来报道20％的黑素瘤存在p33^ING1b基因突变。目的：分析作者收集的大量新鲜黑素瘤组织和黑素瘤细胞系中p33^ING1b的突变率。方法：通过单链构象多态分析和直接测序法筛查83例原发性黑素瘤和55株黑素瘤细胞系中p33^ING1b的突变。结果：与之前报道相比，作者发现所有黑素瘤中没有体细胞p33^ING1b的突变。分析其结果与以往发表的研究结果间的差异部分可能由于不慎扩增ING1假基因（INGX）和（或）一些标本污染了鼠ING1。结论：p33^ING1b突变在黑素瘤中很罕见。作者强调等位基因特异性引物设计的重要性，以避免假基因扩增，并认为证实遗传同一性和个体细胞系的起源物种很有必要。需进一步研究来阐明黑素瘤致癌机制中p33^ING1b的可能作用。

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简介：目的：探讨αB-晶状体蛋白（αB-crystallin）高表达对人皮肤角质形成细胞（HaCaT）存活和凋亡的影响。方法：构建αB-crystallin的真核表达载体，转染至Hacarr细胞中并筛选出稳定高表达αB-crys-tallin的HaCaT细胞株，MTT法和流式细胞术分别检测高表达αB-crystallin对HaCaT细胞的细胞存活率和细胞凋亡率的影响。结果：成功筛选出高表达仅B—crystallin的HaCaT／CRYAB-1、HaCaT／CRYAB-2，该两者的αB-crystallin表达水平均较亲代HaCaT明显升高。αB-crystallin高表达的HaCaT细胞在H2O2处理后细胞存活率明显升高（t=5．23，P〈0．05），细胞凋亡率明显下降（t=15．09，P〈0．05）。结论：αB-crystallin具有促人角质形成细胞存活和抗细胞凋亡的作用。

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：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：例1,男,37岁。面颈、双上肢多发暗红色丘疹伴瘙痒5个月。皮肤科情况:面部、颈部、双上肢泛发孤立红色丘疹,粟粒至黄豆大小,质韧。例2,女,53岁。臀部红色丘疹2年。皮肤科情况:面部、颈部、肘部、臀部皮肤可见散在红色、暗紫色丘疹、斑块,约豆粒至钱币大小,有浸润感,质韧。两例患者皮肤镜下均可见橘黄色无结构区、白色线条及白色瘢痕样色素减退、线状血管及线状分支状血管;皮损组织病理检查:真皮可见大量上皮样细胞组成的'裸结节',结节周围少量淋巴细胞浸润,散在的多核巨细胞。诊断:皮肤结节病。

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：大疱性类天疱疮（bullouspemphigoid，BP）是一种好发于老年人的表皮下大疱病。作者近来诊治的2例肾移植术后并发大疱性类天疱疮，均为中青年患者，现报告如下：

简介：乳房外Paget病（EMPD）是一种罕见的，发生于乳房外的一种表皮内存在Paget细胞的湿疹样癌。可发生于外阴、阴囊、腹股沟、阴茎、肛周等大汗腺丰富的部位，常常与表皮内肿瘤和内脏肿瘤有关，由于表现多种多样易出现误诊。在病理上应与Bowen病，浅表型恶性黑色素瘤区别，发生于外阴的乳房外Paget病在临床上更易误诊为湿疹，脂溢性皮炎。本文介绍了2例被误诊的Paget病，同时复习了国内外有关本病的一些诊断和治疗方面的进展。

简介：水痘和带状疱疹分别是水痘-带状疱疹病毒（VZV）原发感染和再活化引起不同临床表现的2种疾病。水痘传染性强，而带状疱疹的传染性则尚未十分明确。本文报告一组带状疱疹患者家庭内2名密切接触者2周内相继患水痘的病例。

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简介：报告2例结节型皮肤肥大细胞增生症患儿。2例患儿均为出生后不久发病,表现为躯干和四肢散发的结节性皮损,部分皮损表面可出现水疱。皮肤组织病理表现为真皮浅层或中层弥漫肥大细胞浸润,Giemsa染色可见肥大细胞内紫红色异染颗粒。结合病史、临床表现和组织病理学改变诊断为结节型皮肤肥大细胞增生症。

简介：报告2例上皮样血管瘤,分别为18岁女性和10岁男性患者,临床表现均为皮肤出现丘疹、结节、质硬肿物。病理表现均为真皮浅层血管增生、扩张,血管内皮细胞肿胀,凸出管腔,形成墓碑状,真皮下层血管增生,管周不等量淋巴组织细胞、嗜酸性粒细胞浸润,并可见淋巴滤泡形成。诊断符合上皮样血管瘤。并对其病因、临床特征、诊断和治疗进行综述。

简介：痤疮是一种累及毛囊皮脂腺的慢性炎症性皮肤疾病。尽管痤疮的确切病因及发病机制尚不明确,但炎症反应是其发病的重要因素之一,其中痤疮丙酸杆菌是主要致病菌。痤疮丙酸杆菌可通过激活Toll样受体2（Toll-likereceptors2,TLR2）介导的信号传导通路诱导炎症级联反应,从而形成炎症性痤疮。一些药物可以通过调节TLR2受体的功能与表达,发挥抗炎及治疗痤疮的作用。该文就TLR2在痤疮发病中的作用及与之相关的治疗方法做一综述。

简介：包茎、包皮过长是男科常见的一种疾病，我科采用CO2激光包皮套环切除术治疗包茎、包皮过长患者96例，取得了较满意的疗效，现报告如下。

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.

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简介：目的：进一步认识2型糖尿病合并皮肤病变类型及特点,以早期发现及诊断糖尿病,减少漏诊。方法：对我院门诊250例2型糖尿病患者进行皮肤病变调查,对其中162例合并皮肤病变者进行临床分析。结果：糖尿病患者中合并皮肤病变者占64.8%,其中感染性皮肤病居首位,各种皮肤病变中位居前三的为甲真菌病38.9%,湿疹19.7%,瘙痒症14.8%。42.5%患者合并多种皮肤病变。结论：糖尿病患者易发生合并皮肤病变。经久不愈、反复发作的皮肤病患者应注意监测血糖,做到对糖尿病的早发现、早诊断、早治疗,提高患者的生活质量。

简介：Objective:ThisstudyanalyzedtheTlymphocytesandThl/Th2typecytokineprofileshiftintheperipheralbloodofpatientswithrecurrentgenitalherpes(RGH).Methods:Immunofluorescentstainingofcellsurfaceantigenandintracellularcytokines(IL-2,IL-4,IL-12,IFN-r)inperipheralbloodfrom20RGHpatientsand10controlswereanalyzedusingflowcytometrictechniques.Results:RGHpatientshadsignificantlylowerlevelsofCD3^+Tcells,CD4^+TcellsandCD4^+T/CD8^+Tcellsratiocomparedtocontrollevels(P<0.001),andIL-2-producing,IFN-r-producingandIL-12-producingTcellswereincreasedinRGHpatients(CD4^+T:P<0.001,CD8^+T:P<0.05respectively),whereasIL-4-producingTcellswereincreasedinRGHpatientscomparedtocontrols(CD4+T:P<0.05;CDS^+T:P<0.001respectively).Conclusions:RGHpatientshaveTlymphocytesubsetvariationsandThl/Th2cytokinechanges.TheincreaseinTh2cellsThl/Th2imbalancemayhaveimportantimplicationsforRGHpathogenesis.