Evaluating the Association between Human Papillomavirus and Vulvar Cancer:A Comprehensive Analysis Using Bradford Hill Criteria

Background:The role of human papillomavirus(HPV)in the development of vulvar cancer(VC)has been widely studied,but findings have been inconsistent.Despite numerous meta-analyses exploring the potential link between HPV and VC,the association remains controversial due to inherent limitations in meta-analytic methods.Objectives:To address this controversy,the study aims to investigate the potential link between HPV and VC using the Bradford Hill criteria,which offer a more comprehensive framework for establishing causation.Methodology:The study began by extracting all relevant studies on the association between HPV and VC from the PubMed database.The potential links were then assessed by examining the data using the major postulates of the Bradford Hill criteria.To ensure the reliability of the findings,the methodologies of the identified studies were critically evaluated to account for possible false-negative and false-positive results.Results:The assessment of previous studies against the Bradford Hill criteria revealed that the major postulates were not fulfilled.Conclusion:Based on the findings,it can concluded that there is no causal association between HPV and VC.

Analysis of Human Papillomavirus Infection in Cervical Exfoliated Cells

To screen patients with early cervical lesions by analyzing the infection of high-risk Human papillomavirus (HR-HPV). Research Methods: The cervical exfoliated cell specimens and their clinical data were collected. The HPV infection types of the collected specimens were detected by fluorescence quantitative PCR, and the correlation between HPV infection and clinicopathological features was analyzed statistically. Results: 725 cases were HR-HPV positive from 2605 cases, including 15 high-risk types of HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 68. Different histological types ranged from NILM to HSIL, and the positive rate of HPV showed an increasing trend with the aggravation of cervical lesions. Conclusion: The positive rate of 15 high-risk HPV types in the collected specimens was 27.8%. Patients with early cervical lesions could be screened for 15 high-risk HPV infection types.

不同治疗方案对宫颈高危型HPV感染患者的治疗效果分析

目的:探讨多种治疗方案对宫颈高危型人乳头瘤病毒(HPV)感染患者的临床治疗效果,为HPV患者的临床治疗提供新思路。方法:采用回顾性研究方法纳入2022年1月—2023年1月在宜昌市中心人民医院治疗的宫颈高危型HPV感染患者501例,根据患者选取的治疗方法分为三组,A组患者给予保妇康栓治疗(n=167),B组患者给予重组人干扰素α-2b凝胶治疗(n=167),C组给予抗HPV生物蛋白敷料治疗(n=167)。比较三组HPV患者治疗有效率、HPV-DNA水平、治疗后HPV阳性率和治疗过程中不良反应发生率,评价临床治疗效果。结果:C组患者治疗总有效率明显高于A组(90.42%vs 74.85%)和B组(90.42%vs 77.25%)(均P<0.05)。三组患者治疗3个月及6个月HPV-DNA水平较治疗前明显下降,且治疗3个月及6个月时,C组患者的HPV-DNA水平较A组和B组明显降低(均P<0.05)。治疗后C组HPV阳性率明显低于A组(6.60%vs 22.75%)和B组(6.60%vs 20.96%)(均P<0.05)。三组患者不良反应发生情况无明显统计学差异(P>0.05)。结论:抗HPV生物蛋白敷料对于宫颈高危型HPV感染患者的治疗效果优于保妇康栓及重组人干扰素α-2b凝胶,且不良反应发生少,值得临床上进一步推广。

2020—2022年滨州市某医院妇科自然就诊患者HPV感染状况分析

目的分析滨州市某医院妇科自然就诊患者人乳头瘤病毒(human papillomavirus,HPV)基因型分布及HPV感染例数,为当地宫颈癌防治提供参考。方法统计分析2020年1月—2022年12月妇科自然就诊患者HPV基因亚型及单一和多重感染率。结果2020——2022年滨州市某医院妇科自然就诊患者进行HPV基因型检测,三年共检测HPV 22580例,共检出HPV阳性者4458例,阳性率为19.86%;单一HPV基因型感染者3301例,阳性率14.62%,多重HPV感染者1184例,阳性率5.24%。对2020——2022年HPV感染患者进行HPV基因型统计分析,结果显示:高危型HPV(HR-HPV)前五位是HPV 52型、HPV 16型、HPV 58型、HPV 51型、HPV 68型,低危型HPV感染第一位为HPV 42型;HPV感染最少的基因型是HPV 83型。年龄方面,HPV感染者以21~60岁年龄段人群为主,≤20岁HPV感染者126例,最小年龄者16岁;>60岁HPV感染者153例,最大年龄为87岁,此两年龄组HPV多重感染率均高出21~60岁年龄组。结论本地患者HPV感染者以HPV 52型最多,其次为HPV 16型。HPV感染以单一型为主,多重感染者比例也不容忽视。HPV基因型检测是宫颈癌筛查的重要手段。

1658例生殖健康门诊男性HPV感染情况及基因型分布特征分析

目的了解生殖健康门诊男性的人乳头瘤病毒(human papillomavirus,HPV)感染情况和基因型分布特征,并比较各年龄组间是否存在差异。方法以2018—2022年在上海计生所医院门诊就诊的1658例男性为研究对象,采用PCR-反向点杂交法对23种HPV基因型进行检测。结果研究对象的HPV总感染率为22.50%。主要感染类型为单一感染(66.76%)。各年龄组HPV感染率的差异具有统计学意义(P<0.001),18~30岁、31~40岁、41~50岁和51岁及以上组HPV感染率分别为16.83%、22.87%、34.63%和29.35%。感染率居前5位的高危型HPV为HPV52(3.56%)、HPV16(3.26%)、HPV39(2.41%)、HPV51(2.17%)和HPV58(2.17%)。感染率最高的低危型HPV为HPV81(2.90%)。本研究中感染者的全部基因型能被HPV二价、四价、九价疫苗覆盖的比例分别为7.77%、12.33%和26.27%。结论本地区生殖健康门诊男性研究对象HPV感染类型以单一感染为主。高危基因型感染以HPV52、16、39、51和58最常见,低危基因型感染以HPV81最常见。41~50岁男性受检者的HPV感染率较高。

HPV L1保守序列多肽抗血清降解HPV6感染能力的测试

目的:明确对不同类型人乳头瘤病毒主要衣壳蛋白(HPV L1)具有交叉反应性的HPV L1 C-末端保守序列抗体是否具有降解HPV6感染能力的作用。方法:收集尖锐湿疣标本,从收集的标本中找出HPV6型感染病例,并提取病毒。将多肽抗血清按不同比例稀释,与得到的病毒共同培养并中和,接触单层培养的人永生化角质形成细胞,PCR检验经HPV6病毒接触后人永生化角质形成细胞中HPV6 DNA含量,ELISA检验此细胞中HPV6 L1蛋白存在与否。结果:经不同稀释浓度抗血清中和的HPV6病毒感染的人永生化角质形成细胞,其DNA提取物的PCR产物经电泳,在凝胶280 bp处,HPV6特异性区间呈现不同强度的阳性条带,阳性条带的强度随抗血清浓度的升高逐渐降低。ELISA对经抗血清中和病毒接触的人永生化角质形成细胞提取蛋白进行测试,HPV L1蛋白表达量显示出与上述PCR检测结果同样的梯度变化趋势,变化差异具有统计学意义。结论:初步证明,HPV6 L1保守序列多肽抗血清可部分降解该病毒的感染,该抗血清具有针对更多型HPV进行中和研究的价值。

亚洲人群HPV疫苗免疫原性及安全性的Meta分析

目的评估人乳头状瘤病毒(HPV)疫苗在亚洲人群中接种后的免疫原性和安全性。方法本研究分别检索英文数据库(PubMed、Embase、Web of Science、Clinical Trails、Cochrane library)和中文数据库(中国知网、万方、维普),自建库至2022年4月,关于亚洲人群进行的HPV疫苗安全性和免疫原性临床试验文献。采用主题词与自由词灵活搭配检索并结合纳排标准筛选文献,对最终纳入文献进行质量评价并提取资料,应用Meta分析合并评估。结果最终纳入16篇随机对照试验(RCT)研究,累计研究对象25485人。Meta分析表明对于HPV疫苗免疫原性,HPV16型特异性血清转化率合并效应值RR为43.74(16.51~115.85),HPV18型特异性血清转化率合并效应值RR为45.72(8.78~238.13)。对于HPV疫苗安全性,二价与四价HPV疫苗接种局部不良事件风险试验组高于对照组,RR为1.52(1.34~1.73)和1.38(1.20~1.59)。二价HPV疫苗与四价HPV疫苗试验组发生全身性不良事件的风险也高于对照组,RR分别为1.21(1.11~1.32)和1.13(0.99~1.30)。结论接种亚洲人群HPV疫苗后血清抗体阳转率高于未接种者,提示接种HPV疫苗可以提高个体特异性抗体水平,接种HPV疫苗发生局部和全身性安全事件的风险均高于对照组,提示仍要高度重视HPV疫苗的安全性问题。

Revisiting HPV infection pattern among urban Indonesian women in general population and its implication on health burden:A cross-sectional analysis from Indonesian Noncommunicable Disease Research 2016

Objective:To identify circulating HPV types among urban Indonesian women and their specific co-infection patterns in bid to curb HPV infection in the general population and minimize its complications.Methods:Urban Indonesian women from general population were selected as sample framework.Sample size and distribution across regions were determined by the Indonesian Bureau of Statistics(Badan Pusat Statistik,BPS),which represented the national level.Up to 35408 cervical swab specimens were collected from August to September 2016 in 34 Indonesian provinces,categorized into six regions based on the development criteria set by the Ministry of National Development Planning(Badan Perencanaan Pembangunan Nasional,BAPPENAS).From all 1874 samples identified as HPV-positive,hybrid capture was implemented to evaluate type-specific HPV.This study analyzed descriptive data to determine the core-cluster of HPV combination.Co-occurrence HPV network was assessed using‘qgraph’package version 1.6.3 and computed in R version 3.6.3.Two-HPV association was analyzed in logistic regression using bias-reduction generalized linear model(brglm2)package version 0.5.1 adjusted by age and six main Indonesian regions.Results:The logistic regression analysis demonstrated that HPV type 52 had rare relationship despite its common co-occurrence,cementing its role in single HPV infection.HPV type 16 and 18 tended to form infection cluster and were strongly associated with other types.Conclusions:HPV type 52 was the most frequent HPV type among urban Indonesian women and accounted for most single infection cases.Concurrently,HPV 16 and HPV 18 accounted for most multiple infection cases and had strong tendency to attract other types,which may add further complications.However,due to lack of cytology and histological examination and information for other potential determinants,further in-depth studies are necessary to confirm whether these infection patterns truly connect to certain clinical outcomes.

阴道微生态与宫颈HR-HPV感染及宫颈病变关系的研究进展

高危型人乳头瘤病毒(HR-HPV)感染是导致宫颈上皮瘤变(CIN)及宫颈癌的关键因素。阴道内环境在正常情况下由于各菌群的动态平衡而处于稳定状态,由此构成女性生殖系统健康的重要基础,其中乳酸杆菌为优势菌群,在各种致病因素的作用下,各菌群间此消彼长,平衡状态由此被打破,导致阴道炎症病发率和HR-HPV感染率上升,并引发一系列宫颈病变,如无有效预防及干预手段,将进一步发展为宫颈癌。本文综述阴道微生态与宫颈HR-HPV感染及宫颈病变的关系的最新研究成果,以期为临床降低HR-HPV感染率及干预宫颈病变提供一定借鉴。

Distribution of High-Risk Human Papillomavirus Genotypes among Women with Colposcopic Diagnosis of Cervical Intraepithelial Neoplasia in Bangladesh

Background: The incidence of cervical cancer is high in Bangladesh and there is a high prevalence of preinvasive lower genital tract disease among women of reproductive age. Persistent high-risk Human Papilloma Virus (HPV) infection is the main underlying cause of cervical cancer and its precursor, cervical intraepithelial neoplasia (CIN). Objective: The aim of the study was to identify the subtypes of high-risk HPV infection among women with the colposcopic diagnosis of cervical intraepithelial neoplasia in Bangladesh. Methods: This cross-sectional observational study was conducted in the colposcopy clinic of Dhaka Medical College Hospital over a six-month period. A total of 100 participants were enrolled. Married women, between 30 - 60 years of age with colposcopically diagnosed cervical intra epithelial neoplasia were enrolled. Women with chronic illness, pregnancy, and women unable to consent were excluded from this study. After counselling, colposcopically directed punch biopsies were taken from each CIN case concurrently with high-risk HPV testing by polymerase chain reaction (PCR). Results: The mean age of the patients was 38.69 (SD ±7.76) years. CIN 1 was diagnosed in 57% of participants, while 24% had CIN II and 19% had CIN III lesions. High-risk HPV was present in 52 patients. HPV 16 was the most common identified in 28 (53.84%) and HPV 18 was the second most common with 20 (38.46%) either singly or in combination with other high-risk subtypes. The other HPV strains, HPV 31, 33, 35, 52, 56 and 58, were also detected either as mono or co-infections. Out of the 52 HPV positive cases, 29 (55.8%) had mono infection and 23 (44.2%) had co-infection with several subtypes. The highest incidence (50%) of oncogenic HPV infections was present among women aged 35 - 45 years. Risk factors associated with HPV positive cases were high parity (P 0.05), early age at marriage (P = 0.754) and early age of first child. Conclusion: This study identified a high prevalence of HPV 16 and 18 genotypes. HPV vaccination with the current 9-valent HPV vaccine, which contains HPV types 6, 11, 16, 18, 31, 33, 45, 52, and 58. Will be an effective public health measure to eradicate cervical cancer in Bangladesh.

阴道微生态失衡联合血清HLA-G、HLA-E水平评估HSIL患者CKC术后HPV持续感染价值

目的:探究阴道微生态失衡联合血清人类白细胞抗原-G(HLA-G)、人类白细胞抗原-E(HLA-E)水平对宫颈高级别上皮内瘤变(HSIL)患者冷刀锥切(CKC)术后人乳头瘤病毒(HPV)持续感染的预测价值。方法:回顾性收集2021年1月-2022年12月本院收治HSIL患者137例临床资料,均行CKC治疗并术后随访1年,观察术后HPV持续感染情况,测定阴道微生态及血清HLA-G、HLA-E,分析阴道微生态及血清HLA-G、HLA-E水平与HPV持续感染关系以及评估价值。结果:137例术后1年内HPV持续感染31例(阳性组),HPV持续感染率为22.6%,未持续感染106例(阴性组),两组阴道pH值,阴道菌群密集度、多样性及滴虫阴道炎发生等均有差异,阳性组阴道微生态失衡率高于阴性组,血清HLA-G(19.84±3.53 ng/ml)、HLA-E(75.39±15.83 pg/ml)水平均高于阴性组(16.93±2.96 ng/ml、68.42±12.51 pg/ml),阳性组中阴道微生态失衡者血清HLA-G、HLA-E水平高于阴道微生态正常者(均P<0.05);Spearman相关分析显示,阴道微生态失衡、血清HLA-G、HLA-E水平与术后HPV持续感染呈正相关(r=0.633、0.529、0.608,均P<0.05);受试者工作特征曲线分析显示,阴道微生态失衡、血清HLA-G、HLA-E水平及联合评估术后HPV持续感染的曲线下面积分别为0.601、0.773、0.805、0.885(P<0.05)。结论:阴道微生态失衡联合血清HLA-G、HLA-E水平有对HSIL患者CKC术后HPV持续感染有一定预测价值。

口腔HPV感染的研究现状

流行病学证据表明口腔是人乳头瘤病毒(human papillomaviruses,HPV)的储存库,水平传播和垂直传播等多种途径促进了口腔HPV感染的流行。低危型HPV感染可能导致口腔黏膜良性病变,而高危型HPV的持续感染是诱发头颈部鳞状细胞癌的重要危险因素。目前,我国关于口腔HPV感染的研究工作并不深入,国人对相关知识的认知不足,这不利于相关疾病防治工作的开展。在此背景下,本文对口腔HPV感染的研究现状进行综述,以期为我国口腔HPV感染的防治工作提供参考。

经阴道分离膀胱直肠间隙的宫颈LEEP术后HPV转阴情况及生育能力分析

目的探讨子宫颈高级别鳞状上皮内病变(high-grade cervical intraepithelial neoplasia,HSIL)患者行经阴道分离膀胱直肠间隙的宫颈环形电切术(loop electrosurgical excision procedure,LEEP)后人乳头状瘤病毒(human papillomavirus,HPV)转阴情况及生育力。方法收集2019年1—12月在复旦大学附属妇产科医院行经阴道分离膀胱直肠间隙的宫颈LEEP术患者53例,术后行子宫颈脱落细胞学检查、HPV检测和阴道镜下子宫颈活检,随访时间分别为6、12和24个月。分析患者术前HPV感染分布及保育成功率,经阴道分离膀胱直肠间隙的宫颈LEEP术后HPV转阴情况,术后切缘阳性和病理类型分布,HPV感染类型对术后切缘阳性的影响及患者术后生育情况。结果53例患者中,94.3%(50/53)存在HPV感染,其中75.5%(40/53)为HPV16/18型感染者,69.8%(37/53)为HPV单一亚型感染,高于混合感染22.7%(12/53);71.7%(38/53)前次LEEP术后切缘阳性,28.3%(15/53)HSIL复发;56.6%(30/53)术后病理HSIL,28.3%(15/53)未发现病理性改变;75.5%(40/53)术后切缘阴性(即保育成功),其中95%(38/40)HPV转阴。比较HPV16/18感染(P=0.196)和HPV感染类型(P=1.000)对术后切缘阳性的影响,差异无统计学意义。5例保育成功的患者在术后完成生育(12.5%,5/40),其中顺产1例,剖宫产4例。5例均为足月分娩,3例行宫颈环扎术,2例患者未行宫颈环扎。结论子宫颈HSIL患者行经阴道分离膀胱直肠间隙的宫颈LEEP术后保育成功率高,术后HPV转阴率高。

上海市嘉定区HPV感染情况及其与宫颈病变的关系

目的 探讨上海市嘉定区女性人乳头瘤病毒(HPV)感染情况,结合病理结果分析HPV不同亚型与宫颈病变的关系。方法 回顾性分析上海市嘉定区妇幼保健院2023年3月13日至2024年3月31日进行HPV分型检测的19 030例患者的HPV亚型结果及同期检测的病理结果,分析HPV感染与年龄、宫颈病变之间的关系。结果 在19 030例标本中HPV阳性3 506例,感染率为18.42%,其中单一感染2 185例,多重感染1 321例;各年龄组HPV感染率为≤20岁组30.34%,>20~30岁组18.46%,>30~40岁组16.46%,>40~50岁组14.83%,>50~60岁组21.29%,>60岁组32.74%,各年龄段HPV感染率差异有统计学意义(P<0.001)。感染率前5位的HPV亚型为52型(21.50%)、53型(10.84%)、58型(10.02%)、33型(8.33%)和59型(6.85%)。感染率前5位的HPV亚型及16型、18型阳性者进展为较高级别宫颈病变[非典型鳞状上皮细胞-不能排除高级别鳞状上皮内病变(ASC-H)+低级别鳞状上皮内病变(LSIL)+高级别鳞状上皮内病变(HSIL)+鳞状细胞癌(SCC)]的比例明显高于HPV阴性者(P<0.05),与感染率最高的HPV 52型阳性者相比,HPV 16型、18型、58型和33型阳性者更易进展为较高级别宫颈病变(P<0.05)。结论 上海市嘉定区≤20岁组及>60岁组女性HPV的感染率较高,不同HPV亚型感染进展为宫颈病变的风险也不同,除已知的HPV 16型、18型外,HPV 58型和33型感染也与较高级别的宫颈病变密切相关,应加强关注。

Progress in the Research on the Relationship between Infection with Human Papillomavirus and Tumorigenesis

Human papillomavirus(HPV) is a DNA virus that infects the skin and mucous membranes of the human body. Approximately 80% of sexually active women are likely infected with HPV. Cervical cancer is one of the most common malignant tumors and is second in incidence only to breast cancer. Infection with high-risk HPV types is the main risk factor for cervical cancer, which is currently the only malignant tumor with a clearly defined etiology. HPV infection is also closely related to the incidence and development of other malignant tumors. In addition to cervical cancer, HPV can cause other urogenital tumors, as well as tumors in the digestive tract, lungs, eyes, skin, and other organ systems. This paper provides a review of the progress in HPV infection-related research and provides novel ideas for the study of tumor etiology and mechanisms.

Co-infection of Epstein-Barr virus and human papillomavirus in human tumorigenesis

Viral infections contribute to approximately 12%of cancers worldwide,with the vast majority occurring in developing countries and areas.Two DNA viruses,Epstein-Barr virus(EBV) and human papillomavirus(HPV),are associated with38%of all virus-associated cancers.The probability of one patient infected with these two distinct types of viruses is increasing.Here,we summarize the co-infection of EBV and HPV in human malignancies and address the possible mechanisms for the co-infection of EBV and HPV during tumorigenesis.

HPV感染的慢病管理

目前HPV的感染在全球人群中普遍存在,并且HPV感染人体后很难被彻底清除,因此由HPV感染所诱发的多种慢性疾病如病毒疣、宫颈上皮内瘤变、呼吸道乳头状瘤等往往存在着很高的复发率,给患者乃至社会均带来了沉重负担。因此,需要对HPV感染所诱发的慢性疾病进行科学规范的管理,进而降低HPV感染率与疾病复发率、缩短病程,从而有效促进HPV的防治工作。本文就HPV感染的慢病管理的必要性、具体方法及其意义进行综述。

Reid阴道镜评分、HPV E6/E7 mRNA表达量在宫颈癌中的临床应用价值研究

目的研究Reid阴道镜评分(以下简称Reid评分)、高危型人乳头瘤病毒(HR-HPV)mRNA表达量与宫颈癌国际妇产科联盟(FIGO)分期、血清常规肿瘤标志物水平的相关性及对宫颈癌术后淋巴结转移的预测价值。方法选取2021年3月至2022年5月在菏泽市立医院就诊的100例宫颈癌患者作为宫颈癌组,另选同期诊治的50例低级别鳞状上皮内病变(LSIL)患者作为LSIL组,50例高级别鳞状上皮内病变(HSIL)患者作为HSIL组。比较3组Reid评分、HPV E6/E7 mRNA表达量及血清常规肿瘤标志物[糖类抗原125(CA125)、癌胚抗原(CEA)]水平;分析宫颈癌组Reid评分、HPV E6/E7 mRNA表达量与血清常规肿瘤标志物水平及宫颈癌FIGO分期的相关性;根据宫颈癌组患者术后随访结果分为术后有淋巴结转移和无淋巴结转移,比较有无淋巴结转移患者Reid评分、HPV E6/E7 mRNA表达量及血清CA125、CEA水平,分析Reid评分、HPV E6/E7 mRNA表达量对宫颈癌术后淋巴结转移的预测价值。结果宫颈癌组Reid评分、HPV E6/E7 mRNA表达量及血清CA125、CEA水平均高于HSIL组、LSIL组(P<0.05);HSIL组Reid评分、HPV E6/E7 mRNA表达量及血清CA125、CEA水平均高于LSIL组(P<0.05)。宫颈癌患者Reid评分、HPV E6/E7 mRNA表达量与血清CA125、CEA水平均呈正相关(r=0.405~0.705,P<0.05)。Reid评分、HPV E6/E7 mRNA表达量与宫颈癌FIGO分期呈正相关(r=0.415、0.501,P<0.05)。宫颈癌组术后淋巴结转移患者的Reid评分、HPV E6/E7 mRNA表达量及血清CA125、CEA水平均高于无淋巴结转移的患者(P<0.001)。Reid评分、HPV E6/E7 mRNA表达量、CA125、CEA预测宫颈癌术后淋巴结转移的曲线下面积(AUC)分别为0.756(95%CI:0.657~0.838)、0.760(95%CI:0.662~0.841)、0.803(95%CI:0.710~0.877)、0.768(95%CI:0.670~0.848)。将CA125、CEA联合检测作为常规预测方案,Reid评分、HPV E6/E7 mRNA表达量、CA125、CEA联合检测作为新预测方案,常规预测方案预测宫颈癌术后淋巴结转移的曲线下面积(AUC)为0.826(95%CI:0.724~0.889),新预测方案预测宫颈癌术后淋巴结转移的AUC为0.955(95%CI:0.892~0.987),新预测方案预测的AUC明显大于常规预测方案(Z=1.981,P=0.045)。与常规预测方案比较,新预测方案的净重新分类指数为0.021(95%CI:0.015~0.039)、综合判别改善指数为0.046(95%CI:0.033~0.069),均P<0.05。结论Reid评分、HPV E6/E7 mRNA表达量与宫颈癌FIGO分期及血清CEA、CA125水平相关,且在预测宫颈癌术后淋巴结转移方面具有一定价值。

SEARCH FOR HERPES SIMPLEX VIRUS TYPE2（HSV－2）AND HUMAN PAPILLOMAVIRUS（HPV）IN THE NORMAL AND ABNORMAL CERVICAL SAMPLES

The specimens of 111 cervical carcinomas. 68 chronic cervicitis and 43 normal cervical exfoliated epithelial cells were examined for the presence of HSV2 DNA sequences with DNA hybridization using HSV2 BgL Ⅱ N fragment probe labelled by 32PdCTP. The result showed that the infection rates of HSV2 in the samples of cervical cancer.chronic cervicitis and normal epithelial cells were 1 4. 41 %(16/111). 27.94%( 19/68) and 25.58% ( 11/43),respectively. It was implied that early stages carcinogenesis of cervical epithelial cells might be correlated with the HSV2 infection.Sixteen HSV 2 positive samples of cervical carcinomas were also examined for the presence of the sequences homologous to human papillomavirus (HPV) type 6B/11. 16 and 18 DNA using dot blot hybridization (Tm17℃). The result indicated that 13 out of 16 were HPV 16 DNA hybridization positive accounting for 81. 2% of all HSV-2 positive samples and none of them were positive for HPV type 6B/11 and 18. The result indicated that double infection of HSV 2 and HPV16 in the same cervical carcinoma tissues may provide a strong evidence of the viral synergistic interaction in the induction of female cervical

THE DETECTION OF P53 GENE IN HUMAN CERVICAL CARCINOMA WITH AND WITHOUT HUMAN PAPILLOMAVIRUS INFECTION

The special primers Of p53 exon 7 as wed as HPV16 E6 and E7 ORFs (Opening Rending Frame) were used with PCR, PCR-SSCP technique, and 35 specimens of cervical carcinoma were examined. The results were as follows: ① HPV16 E6, E7 DNA was found in 25/35 specimens (71. 4%),which proved again HPV16 Infection an important event in cervical carcinogenesis. However only 11/35 (31.42% ) bad E6 and E7 ORFs simultaneously, 3/35 (8. 57%) and 11/35 (31. 42% ) had only E6 or E7 respectively. ② No mutation and LOH (Loss of Heterozygote) of p53 exon 7 were found in allof 35 specimens. Additionally in the present study, we developed a non-isotopic PCR-SSCP method.