单纯疱疹病毒型特异性的鉴别诊断

单纯疱疹病毒(herpes simplex virus,HSV)分为HSV-1、HSV-2两个型别。两型的DNA有50%的同源性。目前血清学检测无法区分HSV型别。有效地鉴别HSV两型对疾病的诊断治疗和患者的身心健康至关重要。现对Ⅰ、Ⅱ型单纯疱疹病毒的鉴别诊断方法作一综述。     

FQ-PCR技术在孕妇Ⅱ型单纯疱疹病毒感染中的应用

目的:探讨孕妇血清中Ⅱ型单纯疱疹病毒核酸(HSV 2-DNA)的数量与宫内感染率之间的关系。方法:采用荧光定量聚合酶链反应(FQ-PCR)方法对31例HSV 2-IgG阳性的晚期妊娠孕妇血清及其新生儿脐血HSV 2-DNA含量进行检测。结果:31例HSV 2-IgG阳性孕妇中有27例血清HSV 2-DNA阳性,含量为1.0×103~5.4×105copies/mL,新生儿脐血HSV 2-DNA阳性7例,宫内传播率为25.9%(7/27),7例发生新生儿宫内感染的孕妇血清HSV 2-DNA含量均>5.3×104copies/mL。结论:孕妇血清中HSV 2-DNA含量升高是胎儿发生Ⅱ型HSV感染的重要因素之一。FQ-PCR可以准确检测血清HSV 2-DNA的含量,提示体内复制和宫内感染情况,对于临床诊断与治疗有一定的指导意义。     

细胞凋亡在单纯疱疹病毒Ⅱ型中的研究

<正>近年来,细胞凋亡在病毒研究中已成为了一个热点。凋亡是一种主动的由一些凋亡相关基因相互作用的细胞自我破坏过程。病毒必须在宿主细胞中生存     

糖尿病患者血IL-1,IL-6,IFNγ测定及临床意义

目的 :探讨IL 1,IL 6 ,IFNγ与糖尿病的关系。方法 :用免疫放射法对 15例 1型糖尿病、6 3例 2型糖尿病患者及 2 0例正常人的血IL 1,IL 6及IFNγ进行测定。 6 3例 2型糖尿病中有 30例合并早期肾病及眼底病变。结果 :1型糖尿病组血IL 1高于正常组及 2型糖尿病组 [(31 14± 14 36 )pg/ml对 (2 1 37± 8 2 4)pg/ml及(2 3 15± 8 5 3)pg/ml,两者均P <0 0 5 ];血IL 6明显低于正常组及 2型糖尿病组 [(0 45± 0 2 1)ng/ml对 (0 95± 0 47)ng/ml及 (1 5 3± 0 0 7)ng/ml,P <0 0 5 ,P <0 0 1];1,2型糖尿病组血IFNγ均低于正常组 [(0 94± 0 6 5 )IU/ml及 (1 0 1± 0 6 1)IU/ml对 (1 6 4± 0 49)IU/ml,均P <0 0 1]。结论 :1型糖尿病胰岛 β细胞损伤与血IL 1,IL 6密切相关 ;1,2型糖尿病IFNγ水平均降低 ,其临床意义有待进一步探讨     

白内障术后眼内炎患者血清IL-6、IFN-γ、IL-23的变化及其临床意义研究

目的 探讨白内障术后眼内炎患者血清白细胞介素(IL)-6、γ-干扰素(IFN-γ)、IL-23的变化及其临床意义。方法 选取2015年8月至2021年4月在西安爱尔古城眼科医院治疗的白内障术后眼内炎患者34例(34眼,研究组)和术后未并发眼内炎患者30例(30眼,对照组),采集研究组血清、房水和对照组血清,采用酶联免疫法测定IL-6、IFN-γ、IL-23水平,并进行数据分析。结果 研究组患者前房穿刺取房水培养分离病原菌中有革兰阳性菌30株(83.33%)、革兰阴性菌6株(16.67%);研究组血清IL-6、IFN-γ、IL-23水平均高于对照组(P<0.05),研究组房水与血清中IL-6、IFN-γ、IL-23水平的差异均无统计学意义(P>0.05);血清IL-6、IFN-γ、IL-23诊断术后眼内炎的受试者工作特征曲线的曲线下面积(AUC)依次为0.631(95%CI:0.581～0.719)、0.705(95%CI:0.625～0.810)、0.736(95%CI:0.631～0.856),均低于0.750,但三者联合检测的AUC为0.787(95%CI:0.681～...     

不同样本检测单纯疱疹病毒Ⅱ型DNA的结果差异

目的了解不同类型的标本检测单纯疱疹病毒Ⅱ型（HSVⅡ）-DNA的结果差异。方法采用实时荧光定量聚合酶链反应（FQ—PCR）对240例疑似是生殖器疱疹（GH）患者的不同送栓样本的HSVⅡ-DNA进行检测。结果240例疑似GH患者共检出HSVⅡ-DNA阳性142例,总阳性率为59．17％。不同临床样本HSVⅡ-DNA阳性检出率差异有统计学意义（X^2=118．06、P〈0．01）,水疱液和溃疡渗出液样本阳性检出率高于男性尿道拭子、女性尿道拭子和女性宫颈拭子,差异有统计学意义（X^2=114．96、P〈0．01）。不同样本检测为阳性的HSVⅡ-DNA的拷贝数用Kruskal—Wallis法秩和检验进行比较,结果差异有统计学意义（H=13．68、P〈0．01）,水疱液和溃疡渗出液阳性样本的病毒载量高于其他样本。结论对于GH患者,应充分认识到用FQ-PCR法检测HSVⅡ-DNA时其标本采取方法和标本种类的重要性,尽量采取到水疱液或皮损部位组织液和溃疡渗出液送检,以便获得较高的阳性结果。     

子宫内膜癌与单纯疱疹病毒Ⅱ感染的关系研究

目的了解子宫内膜癌与单纯疱疹病毒Ⅱ型(HSVⅡ)感染的关系。方法采用聚合酶链反应-单链构象多态性分析(PCR-SSCP)技术检测30例子宫内膜癌,子宫内膜增殖症、正常子宫内膜各15例HSVⅡ感染情况,电子显微镜观察子宫内膜癌癌细胞5例。结果子宫内膜癌HSVⅡ感染阳性率50%(15/30),电子显微镜观察子宫内膜癌癌细胞胞质内可见少量单膜包裹的圆形小体病毒颗粒;子宫内膜增殖症HSVⅡ阳性率6.67%(1/15);15例正常子宫内膜无HSVⅡ感染。子宫内膜癌与子宫内膜增殖症及正常子宫内膜比较,P<0.001,OR=29,RR=2.749,差异极为显著。结论子宫内膜HSVⅡ感染与子宫内膜癌的发生、发展相关,与患者临床分期、病理分化程度有一定的相关性,可能为子宫内膜癌的高危因素之一。     

IL-17、IL-23在复发性口腔溃疡患者血清中的表达及意义

【目的】探讨 IL-17、IL-23在复发性口腔溃疡(recurrent oral ulceration,ROU)患者血清中的表达及意义。【方法】收集发作期 ROU 患者50例(观察组),其中轻型30例,重型20例,另外收集健康对照40例(对照组),采用酶联免疫吸附试验(ELISA)法检测各组血清中 IL-17、IL-23水平,分析二者的相关性。【结果】ROU 患者血清中 IL-17及 IL-23水平均显著高于对照组,且与病情严重程度呈正相关(P <0.05);IL-17与IL-23呈正相关(P <0.05)。【结论】ROU 患者溃疡发作期外周血中 IL-17及 IL-23水平明显增高,且 IL-23能促进 IL-17分泌,两者可能在 ROU 患者溃疡发生发展中起一定作用。     

IL-18、IL-23和sRAGE在早产儿脑膜炎诊断中的应用

目的 探讨白细胞介素18(IL-18)、白细胞介素23(IL-23)和可溶性受体晚期糖基化终产物（sRAGE）在诊断早产儿细菌性脑膜炎中的临床价值。方法 将96例早产儿分为脑脊液（CSF）细菌培养阳性脑膜炎组（26例）、脑脊液细菌培养阴性脑膜炎组（40例）和非脑膜炎组（30例）;测量各组患儿脑脊液中的IL-18、IL-23和sRAGE水平,比较感染和未感染早产儿上述表达的差异,并采用ROC曲线分析单个标志物和标志物联合诊断的灵敏度和特异度。结果脑膜炎早产儿CSF中IL-18、IL-23和sRAGE水平高于非脑膜炎组（P<0.001）。在单个标志物中,IL-23对于细菌脑膜炎具有最高的诊断准确性,IL-23曲线下面积（AUC）0.977。3种标记物联用的AUC为0.981。结论 IL-23单独及与IL-18和sRAGE组合方式鉴定细菌性脑膜炎精确度高,可帮助临床医生诊断早产儿细菌性脑膜炎和决策是否延长抗生素治疗。     

全长单纯疱疹病毒Ⅱ型糖蛋白D毕赤酵母表达载体的构建

目的:构建单纯疱疹病毒Ⅱ型(HSV-2)糖蛋白D(gD)的毕赤酵母表达载体,为进一步研制重组抗原诊断试剂、研究亚单位疫苗奠定基础。方法:PCR从HSV-2基因组中扩增gD2基因,再用PCR的方法在基因两端加入两个限制性内切酶切位点XhoⅠ和XbaⅠ;PCR产物经过双酶切后按照正确的读码框顺序克隆到毕赤酵母表达载体pPICZαA中;转化到大肠杆菌感受态细胞TOP10F'中,抗生素得到筛选转化子。结果:核酸序列测定PCR扩增的gD2片段与GeneBank中HSV-2G株gDDNA碱基同源性达98.4%,氨基酸同源性达95.7%。在实验过程中构建了四个表达载体,经过双酶切后琼脂糖电泳鉴定正确。结论:构建了gD2毕赤酵母表达载体四个,其中两个含有HSV-2gB的CTL表位序列。     

Recurrent genital herpes simplex virus infection in guinea pigs

After recovery from initial genital herpes simplex virus (HSV) infections, female guinea pigs developed spontaneous recurrent infections characterized by discrete erythematous or vesicular herpetic lesions on the external genital skin. HSV type 2 (HSV2) caused significantly more recurrent infections in guinea pigs than did HSV type 1 (HSV1). HSV2-infected animals demonstrated a significant decline in frequency of recurrences over time. The viral nature of the recurrent lesions was confirmed by recovery of infectious HSV, detection of HSV antigen, and histologic examination. Latent HSV2 could be demonstrated in dorsal root ganglia and external genital skin after recovery from the primary infection. Recurrent genital HSV infection in the guinea pig shares many features with recurrent genital herpes in humans and provides a model for studying the relationship between latency and recurrences and for exploring methods for control of recurrent disease.     

Kinetics of human antibody responses to primary genital herpes simplex virus infection

5 patients with primary genital herpes simplex virus (HSV) infection were studied prospectively for the production of serum antibody reactivity as measured by the virus micro-neutralization test (NT), micro-solid phase radioimmunometric assay (micro-SPRIA), and antibody-dependent cellular-cytotoxic (ADCC) test. ADCC antibody was detected before reactivity measured by either NT or micro-SPRIA in 2 of the patients. A 3rd patient failed to produce neutralizing antibody, whereas specific activity was detected by the other two methods. In 2 other patients a good correlation was observed for development of antibody by all three methods. There were several discordant results in the kinetics of production of antibody detected by these assays, suggesting that not all individuals produce similar types of antiviral antibody.     

Effect of phosphonoformate on symptomatic genital herpes simplex virus type 2 infection of guinea pigs

Using a guinea pig model of genital herpes simplex virus (HSV) type 2 infection, phosphonoformate treatment initiated after the onset of symptoms had a therapeutic effect on the outcome of disease. Severity of disease, viral shedding, and HSV-induced cellular changes in vaginal cytology were significantly reduced in drug-treated animals as compared to sham-treated animals, although virus was readily detected in the nervous system of animals from both groups. The percentage of animals harboring latent virus in their dorsal root ganglia was approximately the same in both drug-treated and sham-treated animals. No drug toxicity was found.     

儿童呼吸道EB病毒感染IgM抗体与病毒DNA的相关性分析

目的 研究不同年龄段儿童呼吸道感染EB病毒(EBV)IgM抗体与病毒DNA的相关性.方法采用酶联免疫吸附法(ELISA法)检测1 062例患儿的血清标本中的EBV-IgM,同时用荧光探针PCR法检测患儿咽拭子标本中的EBV-DNA,对不同年龄段结果利用软件SPSS11.5进行χ2检验分析.结果 1 062例患儿EBV-DNA阳性率为46.61%,EBV-IgM阳性率6.78%,二者比较差异有统计学意义(P＜0.01);EBV-DNA各年龄段分组检测中,阳性率分别为21.05%、40.91%、65.71%、50.00%,≤1岁的低龄患儿阳性率最低(21.05%),与其他组比较差异有统计学意义(P＜0.05).结论 不同年龄段的儿童由于免疫系统发育处于不同阶段,对EB病毒的免疫应答可能存在差异.     

胃癌患者EB病毒感染对bcl-2基因表达影响的研究

目的研究胃癌患者癌组织中人疱疹病毒4型(EB病毒,epstein-Barr virus,EBV)感染与B细胞淋巴瘤或血血病-2基因(B cell lymphoma/leukemia-2,bcl-2)表达的关系。方法原位杂交法(In Situ Hybridization,ISH)检测胃癌患者石蜡标本中EBV编码的小RNA(EBER1);免疫组化法(immunohistochemistry,IHC)检测EBV阳性胃癌及EBV阴性胃癌标本癌基因bcl-2的表达状况。结果217例胃癌患者癌组织标本中检测到23例呈EBER1阳性;EBV阳性胃癌组Bcl-2蛋白表达显著高于EBV阴性胃癌组,平均面积(avevage area,AA)、平均光密度(mean opticaldensity,MOD)和积分光密度(integral optical density,IOD)分别为(67.31±5.95)μm2、17.60±2.80和1.75±0.13 vs(38.1±4.14)μm2、5.000.0和1.35±0.07(P<0.01)。结论EBV感染可能上调了癌基因bcl-2表达。     

Role of matrix metalloproteinase-9 in angiogenesis caused by ocular infection with herpes simplex virus

In this report, we demonstrate that herpes simplex virus (HSV) infection of the cornea results in the upregulation of the matrix-degrading metalloproteinase enzyme MMP-9. This enzyme was shown to contribute to the neovascularization process that occurs in the corneal stroma in response to HSV infection. The likely source of MMP-9, at least initially after infection, was neutrophils that were signaled to invade the cornea soon after infection. Corneal infiltrating neutrophils were shown to express MMP-9, and preventing the neutrophil response with specific mAb diminished MMP-9 expression as well as the extent of angiogenesis. Further supporting a role for MMP-9 in HSV-induced corneal angiogenesis was the observation that inhibition of MMP-9 with the specific inhibitor TIMP-1 resulted in reduced angiogenesis. In addition, angiogenesis was diminished in ocularly infected MMP-9 knockout mice. Our results demonstrate that MMP-9 is involved in angiogenesis caused by HSV. Since angiogenesis appears to represent a vital step in the pathogenesis of herpetic stromal keratitis, these results indicate that targeting MMP-9 for inhibition should prove useful for the therapy of herpetic stromal keratitis.     

人IL-18突变体D134R的构建及其生物学活性分析

目的研究IL-18结构与功能的关系。方法用重叠延伸PCR定点突变技术构建人白介素18(hIL-18)突变体hIL-18D134R。将突变体cDNA与原核表达载体pJW2重组并转化大肠杆菌DH5α。经热诱导表达蛋白质,SDS-PAGE证实,表达的目的蛋白质以包涵体形式存在。菌体经超声破碎后,包涵体以2 mol/L尿素洗涤,8 mol/L尿素溶解,并经Sephadex G-75柱纯化及稀释、透析复性。然后以诱导人外周血单个核细胞(PBMC)产生干扰素-γ(IFN-γ)及对核因子-κB(NF-κB)的激活能力为指标,检测突变体的生物学活性。结果构建的突变体hIL-18D134R可在大肠杆菌DH5α中高效表达,经包涵体洗涤和Sephadex G-75柱纯化后,纯度达92%以上。突变体D134R对IFN-γ的诱生能力及对NF-κB的激活能力分别为野生型hIL-18的19%和23%。结论在人IL-18的氨基酸序列中,Asp134对其生物学功能有非常重要的作用。     

Role of herpes simplex virus in the development of exudative erythema multiforme

The paper presents analysis of current knowledge on etiology and immunopathogenesis of multiform exudative erythema (MEE). Among a variety of pathogenetic actions of herpes simplex on immune system are those relevant to MEE onset. These variants are dealt with in detail. The view on MEE as resultant from herpes simplex infection promises appearance of new prospective modes of etiotropic therapy.