scholarly journals Prevalence and Genotyping of Human Papillomavirus (HPV) in Female with High-Risk Behaviour in Dhaka, Bangladesh

1970 ◽  
Vol 25 (1) ◽  
pp. 65-68 ◽  
Author(s):  
Tahmina Sultana ◽  
Mohsina Huq ◽  
Anadil Alam ◽  
Dipak Kumar Mitra ◽  
Donald James Gomes
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
High Risk ◽  
General Population ◽  
Sex Workers ◽  
Chain Reaction ◽  
Hpv Types ◽  
Polymerase Chain ◽  
High Risk Hpv

In developing countries, cervical cancer is the most common cause of cancer related to mortality in women. But the epidemiology of human papillomavirus (HPV) in different areas of Bangladesh is largely unknown both in risk groups and in the general population. The objective of the present study was to determine the risk factors associated with having HPV and the prevalence of high-risk HPV types among women with highrisk behaviour and to assess its potential impact on preventive strategies as the sex workers are at increased risk for sexually transmitted infections (STI), HPV and hence cervical cancer. Cervical swab from 293 sex workers in Dhaka City between August and September 2003 and between February 2005 and May 2006 were screened for HPV DNA using an HPV short fragment (E6) polymerase chain reaction (PCR) based assay. HPV positive samples were genotyped with nested multiplex polymerase chain reaction (NMPCR) for the highrisk types. The overall HPV prevalence in sex workers was 75.8%, whereas for the high risk type it was 49.8%. Prevalence of single genotype and multiple types of HPV was 33.1 and 16.7% respectively. The most prevalent high-risk HPV types, in order of prevalence rate, were HPV16, HPV18, HPV58, HPV45, HPV31 and HPV33. Both HPV 16 and HPV 18 were present in 21% of the cases. Targeting HPV 16 and 18 with prophylactic vaccines could possibly have an important impact on the incidence of invasive cervical carcinoma in this group of women. Primary prevention and cervical cancer screening programmes should be optimized more and run yearly among the general population. It is proposed to screen sex workers when they enter prostitution regardless of their age. Keywords: Human papillomavirus (HPV); High-risk HPV types; Cervical cancer; Sex workersDOI: http://dx.doi.org/10.3329/bjm.v25i1.4861 Bangladesh J Microbiol, Volume 25, Number 1, June 2008, pp 65-68

Human Papillomavirus Infection of the Epididymis and Ductus Deferens: An Evaluation by Nested Polymerase Chain Reaction

2003 ◽  
Vol 127 (11) ◽  
pp. 1471-1474 ◽  
Author(s):  
Alexandr Švec ◽  
Iva Mikyšková ◽  
Ondřej Hes ◽  
Ruth Tachezy
Keyword(s):  
Polymerase Chain Reaction ◽  
High Risk ◽  
Hpv Infection ◽  
Low Risk ◽  
Chain Reaction ◽  
Nested Polymerase Chain Reaction ◽  
Ductus Deferens ◽  
Hpv Types ◽  
Polymerase Chain ◽  
High Risk Hpv

Abstract Context.—Human papillomaviruses (HPVs) play an important role in the etiology of squamous cell carcinoma of the uterine cervix. The possible role of the male urogenital tract as a reservoir of HPV infection is not fully understood. We inferred from our previous observation of HPV-31 in epididymal tissue in a case of chronic epididymitis that HPV might be commonly present in cases of epididymitis caused by sexually transmitted pathogens. Objective.—To assess the presence of HPV in the epididymis and ductus deferens in nontuberculous epididymitis. Design.—Epididymal samples obtained from 17 patients and epididymal and ductus deferens samples from 5 patients surgically treated for nontuberculous epididymitis were analyzed by nested polymerase chain reaction for the presence of HPV DNA. In positive samples, the HPV type was determined by DNA sequencing. Setting.—Tertiary-care academic hospital and national reference laboratory for papillomaviruses. Results.—Low-risk HPV type 6 and high-risk HPV types 16, 33, 35, 55, and 73 were detected in 7 patients (31%). Neither koilocytes nor dysplastic changes were found in the epididymis and ductus deferens. Conclusion.—Low-risk and high-risk HPV types were detected in the epididymis and ductus deferens of patients with nontuberculous epididymitis. The infection was not accompanied by koilocytic atypia or dysplasia. Our findings support the hypothesis that the male urogenital tract serves as a reservoir of HPV infection.

Prevalence, survival outcomes, and clinicopathologic factors associated with negative high risk human papillomavirus in surgical specimens of cervical cancer with pretreatment negative DNA genotype test

2019 ◽  
Vol 29 (1) ◽  
pp. 10-16
Author(s):  
Gun Oh Chong ◽  
Hyung Soo Han ◽  
Ji Young Park ◽  
Seon Duk Lee ◽  
Yoon Hee Lee ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
High Risk ◽  
Odds Ratio ◽  
Survival Outcomes ◽  
Chain Reaction ◽  
Genotype Test ◽  
Polymerase Chain ◽  
Papillomavirus Dna

ObjectiveThe aim of this study was to detect high risk human papillomavirus in cervical cancer with a pretreatment negative high risk human papillomavirus DNA genotype test and to evaluate clinicopathologic characteristics and survival outcomes according to high risk human papillomavirus status.MethodsWe investigated high risk human papillomavirus status in surgical specimens from 30 cases of cervical cancer using polymerase chain reaction. Polymerase chain reaction primers were set to detect the presence of the common L1 and E7 regions of human papillomavirus types 16, 18, 31, 33, 45, 52, and 58. We analyzed the following clinicopathologic parameters to evaluate their relationships with high risk human papillomavirus status: age, histology, stage, tumor size, invasion depth, lymphovascular invasion, and recurrent status.ResultsAmong 30 cases with a pretreatment negative DNA genotype test, high risk human papillomavirus was detected in 12 (40.0%), whereas 18 (60.0%) were negatives. Of 12 high risk human papillomavirus positive cases, 10 (33.3%) were positive for the L1 region, 6 (20.0%) of the 7 types were positive for the E7 region, and 4 (13.1%) were positive for both L1 and E7 regions. According to a multiple logistic regression model, tumor size (odds ratio 7.80; 95% confidence interval 1.476 to 41.216; P=0.0097) and stage (odds ratio 7.00; 95% confidence interval 1.293 to 37.910; P=0.0173) were associated with negative high risk human papillomavirus DNA status. Kaplan–Meier survival plots showed that negative high risk human papillomavirus status was associated with worse disease free survival in contrast with positive high risk human papillomavirus status (P=0.0392).ConclusionsNegative high risk human papillomavirus was found in 60% of cervical cancers with a pretreatment negative DNA genotype test. Moreover, the negative high risk human papillomavirus group was associated with worse survival outcome.

scholarly journals Screening for Human Papillomavirus in a Low- and Middle-Income Country

2019 ◽  
pp. JGO.18.00233 ◽  
Author(s):  
Aaron E. Atkinson ◽  
Carlos Alberto Matute Mandujano ◽  
Suyapa Bejarano ◽  
Linda S. Kennedy ◽  
Gregory J. Tsongalis
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
Chain Reaction ◽  
Middle Income ◽  
Middle Income Countries ◽  
Hpv Genotypes ◽  
Polymerase Chain ◽  
High Risk Hpv ◽  
Low And Middle Income

PURPOSE Low- and middle-income countries have high incidences of cervical cancer linked to human papillomavirus (HPV), and without resources for cancer screenings these countries bear 85% of all cervical cancer cases. To address some of these needs, brigade-style screening combined with sensitive polymerase chain reaction–based HPV testing to detect common high-risk HPV genotypes may be necessary. METHODS We deployed an inexpensive DNA extraction technique and a real-time polymerase chain reaction–based HPV genotyping assay, as well as Papanicolaou testing, in a factory in San Pedro Sula, Honduras, where 1,732 women were screened for cervical cancer. RESULTS We found that 28% of participants were positive for high-risk HPV, with 26% of HPV-positive participants having more than one HPV infection. Moreover, the most common HPV genotypes detected were different than those routinely found in the United States. CONCLUSION This work demonstrates a deployable protocol for HPV screening in low- and middle-income countries with limited resources to perform cytopathology assessment of Pap smears.

Evaluation of a New Multiplex Real-Time Polymerase Chain Reaction Assay for the Detection of Human Papillomavirus Infections in a Referral Population

2012 ◽  
Vol 22 (6) ◽  
pp. 1050-1056 ◽  
Author(s):  
Matthias Jentschke ◽  
Philipp Soergel ◽  
Victoria Lange ◽  
Boštjan Kocjan ◽  
Thilo Doerk ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
High Risk ◽  
Polymerase Chain Reaction Assay ◽  
Clinical Performance ◽  
Chain Reaction ◽  
Hpv Dna ◽  
Hpv Genotypes ◽  
Polymerase Chain ◽  
High Risk Hpv

ObjectivesHuman papillomavirus (HPV) testing is an important part of cervical cancer screening and management of women with atypical screening results. This study was conducted to evaluate the analytical and clinical performance of the Abbott RealTime High-Risk HPV assay (RealTime) in a referral population, in comparison to the Qiagen Hybrid Capture 2 High-Risk HPV DNA Test (hc2).MethodsRealTime is a new polymerase chain reaction assay that detects 14 high-risk HPV genotypes with simultaneous differentiation between HPV 16 and HPV 18. Five hundred forty-five routine cervical smear samples (ThinPrep) from women who were referred to 2 German colposcopy clinics were included in the study. All samples were tested with both assays for the detection of high-risk HPV DNA. Specimens with repeatedly discordant results were genotyped by Linear Array (Roche) and in-house polymerase chain reaction assays.ResultsBoth assays showed excellent overall agreement (92.8%; κ = 0.86) on 545 samples. Analytical sensitivity of RealTime was comparable to that of hc2 (97.6% vs 95.1%,P= 0.189), whereas RealTime demonstrated significantly higher analytical specificity compared with hc2 (100% vs 93.1%,P< 0.0001). RealTime showed no cross-reactivity with untargeted HPV genotypes in this study. The clinical performance of the assays was evaluated based on histology results available from 319 women (90 nonpathological, 73 cervical intraepithelial neoplasia [CIN] 1, 75 CIN 2, 74 CIN 3, and 7 invasive cancers). High-risk HPV detection rates observed in women with CIN 1, CIN 2+, and CIN 3+ diagnosis, respectively, were comparable for both assays: 47.9%, 92.3%, and 97.5% (RealTime) and 47.9%, 92.3%, and 93.8% (hc2). Detection of HPV 16/18 with RealTime was highly correlated with severity of dysplasia: less than CIN 2, 30.5%; CIN 2+, 59.0%; CIN 3+, 71.6%.ConclusionsThese results support the use of RealTime for routine detection of HPV infections in a referral population.

Detection of Human Papillomavirus Among Women in Laos: Feasibility of Using Filter Paper Card and Prevalence of High-Risk Types

2012 ◽  
Vol 22 (8) ◽  
pp. 1398-1406 ◽  
Author(s):  
Keokedthong Phongsavan ◽  
Inger Gustavsson ◽  
Lena Marions ◽  
Alongkone Phengsavanh ◽  
Rolf Wahlström ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
High Risk ◽  
Filter Paper ◽  
Single Type ◽  
Chain Reaction ◽  
Hpv Typing ◽  
Polymerase Chain ◽  
Cervical Cells

BackgroundPersistent infection with high-risk (HR) human papillomavirus (HPV) is a well-recognized cause of cervical cancer, but little is known about the situation in Laos. The aims of the study were to determine the prevalence of HR-HPV among Lao women and to evaluate the use of a filter paper card (FTA Elute Micro Card) for collection of cervical cells in the humid tropical climate.MethodsThis is a cross-sectional study including 1922 women from 3 provinces in Laos. During a gynecological examination, cervical cells were collected and applied to the FTA card followed by HPV typing using a real-time polymerase chain reaction (PCR)-based assay.ResultsOverall, 213 of the 1922 women were positive for HR-HPV (11%). The most common type was the group HPV33/52/58 (3%), followed by the single type 16 (2%) and the group 18/45 (1%), respectively. Only 11 cards (0.6%) did not contain a sufficient amount of genomic DNA for polymerase chain reaction–based analysis.ConclusionsThe prevalence of HR-HPV infections in Laos is similar to other Asian countries, and 40% of the women with an HR-HPV infection will be target of the present HPV vaccines. The FTA card is suitable for collection of cervical cells for HR-HPV typing in tropical conditions. This information is important for planning and establishing primary and secondary prevention of cervical cancer in Laos.

The discrimination of high-risk HPV types by in situ hybridization and the polymerase chain reaction

1993 ◽  
Vol 25 (3) ◽  
pp. 191-198 ◽  
Author(s):  
C. S. Herrington ◽  
S. M. Anderson ◽  
A. K. Graham ◽  
J. O'D. McGee
Keyword(s):  
Polymerase Chain Reaction ◽  
In Situ Hybridization ◽  
High Risk ◽  
Chain Reaction ◽  
Hpv Types ◽  
Polymerase Chain ◽  
High Risk Hpv

Human Papillomavirus (Hpv) Typing in Relation to ras Oncogene mRNA Expression in HPV-Associated Human Squamous Cervical Neoplasia

2005 ◽  
Vol 20 (4) ◽  
pp. 257-263 ◽  
Author(s):  
I.N. Mammas ◽  
A. Zafiropoulos ◽  
S. Sifakis ◽  
G. Sourvinos ◽  
D.A. Spandidos
Keyword(s):  
Cervical Cancer ◽  
Polymerase Chain Reaction ◽  
Human Papillomavirus ◽  
Hpv Infection ◽  
Cervical Neoplasia ◽  
Chain Reaction ◽  
Hpv 16 ◽  
Expression Levels ◽  
Hpv Typing ◽  
Polymerase Chain

Objective Human papillomavirus (HPV) has been identified as the principal etiologic agent for cervical cancer and its precursors. Different HPV types have been associated with different oncogenic potential. The purpose of this study was to evaluate the relationship between specific HPV type infection and expression pattern of the ras family oncogenes in different grades of HPV-associated human cervical neoplasia. Methods HPV typing was performed using polymerase chain reaction (PCR) in 31 HPV-positive human cervical specimens from patients with squamous intraepithelial lesions (SIL) or squamous cervical carcinoma (SCC). The mRNA expression levels of H-, K- and N-ras oncogenes were examined using the reverse transcriptase polymerase chain reaction (RT-PCR) technique. Statistical analyses were performed using SPSS software. Results Among patients with SCC, H-, K- and N-ras expression levels were higher in HPV 16/18-associated cases compared to HPV 16/18-unassociated samples (p=0.003, p=0.004 and p=0.0001, respectively). The expression levels for H-, K-and N-ras were significantly higher in SCC patients with multiple HPV infection compared with SCC patients with single HPV infection (p=0.009, p=0.01 and p=0.021, respectively). Among patients with SIL, no statistically significant relationship was found between ras expression and HPV status. Conclusion Our findings indicate the possible role of ras signaling interaction with “high-risk” HPV 16/18 and multiple HPV infection in cervical cancer development.

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