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Værnesbranden MR, Staff AC, Wiik J, Sjøborg K, Rueegg CS, Sugulle M, Lødrup Carlsen KC, Granum B, Haugen G, Hedlin G, Johannessen CG, Nordlund B, Nystrand CF, Rangberg A, Rehbinder EM, Rudi K, Sandberg Y, Skjerven HO, Söderhäll C, Vettukattil R, Jonassen CM. Placental human papillomavirus infections and adverse pregnancy outcomes. Placenta 2024; 152:23-30. [PMID: 38768555 DOI: 10.1016/j.placenta.2024.05.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/29/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
INTRODUCTION Knowledge on prevalence and association of human papillomavirus (HPV) in third trimester placentae and adverse pregnancy outcomes is limited. We investigated the prevalence of placental HPV at delivery, explored urine HPV characteristics associated with placental HPV and whether placental HPV increased the risk adverse pregnancy outcomes. METHODS Pregnant women were enrolled in the Scandinavian PreventADALL mother-child cohort study at midgestation. Human papillomavirus genotyping was performed on placental biopsies collected at delivery (n = 587) and first-void urine at midgestation and delivery (n = 556). Maternal characteristics were collected by questionnaires at gestational week 18 and 34. Adverse pregnancy outcomes were registered from chart data including hypertensive disorders of pregnancy, gestational diabetes mellitus and newborns small for gestational age. Uni- and multivariable regression models were used to investigate associations. RESULTS Placental HPV was detected in 18/587 (3 %). Twenty-eight genotypes were identified among the 214/556 (38 %) with midgestational urine HPV. Seventeen of the 18 women with placental HPV were midgestational HPV positive with 89 % genotype concordance. Midgestational high-risk-(HR)-HPV and high viral loads of Any- or HR-HPV were associated with placental HPV. Persisting HPV infection from midgestation to delivery was not associated with placental HPV. Adverse pregnancy outcomes were seen in 2/556 (0.4 %) of women with placental HPV. DISCUSSION In this general cohort of pregnant women, the prevalence of placental HPV was 3 %, and midgestational urinary HPV 38 %. High HPV viral load increased the risk for placental HPV infections. We observed no increased risk for adverse pregnancy outcomes in women with placental HPV.
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Affiliation(s)
- Magdalena R Værnesbranden
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway; University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway.
| | - Anne Cathrine Staff
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Johanna Wiik
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway; Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Katrine Sjøborg
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway
| | - Corina S Rueegg
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Meryam Sugulle
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Karin C Lødrup Carlsen
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Berit Granum
- Department of Chemical Toxicology, Norwegian Institute of Public Health, Oslo, Norway
| | - Guttorm Haugen
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Gunilla Hedlin
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Camilla G Johannessen
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Björn Nordlund
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Camilla F Nystrand
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Anbjørg Rangberg
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Eva M Rehbinder
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Department of Dermatology and Venereology, Oslo University Hospital, Oslo, Norway
| | - Knut Rudi
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Yvonne Sandberg
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Håvard O Skjerven
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Cilla Söderhäll
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Riyas Vettukattil
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Christine M Jonassen
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway; Department of Virology, Norwegian Institute of Public Health, Oslo, Norway
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Værnesbranden MR, Wiik J, Sjøborg K, Staff AC, Carlsen KCL, Haugen G, Hedlin G, Hilde K, Nordlund B, Nystrand CF, Rangberg A, Rehbinder EM, Rudi K, Rueegg CS, Sandberg Y, Sjelmo S, Skjerven HO, Söderhäll C, Vettukattil R, Jonassen CM. Maternal human papillomavirus infections at mid-pregnancy and delivery in a Scandinavian mother-child cohort study. Int J Infect Dis 2021; 108:574-581. [PMID: 34077798 DOI: 10.1016/j.ijid.2021.05.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES Human papillomavirus (HPV) infections are common, especially during women's reproductive years, with unclear obstetrical impact. This study aimed to identify HPV prevalence at mid-gestation and delivery, type-specific persistence from mid-gestation to delivery, and risk factors for HPV infection and persistence. METHODS In 757 women from a Scandinavian prospective mother-child cohort, HPV was analyzed in first-void urine samples at mid-gestation and delivery. We used Seegene Anyplex II HPV28 PCR assay for genotyping and semi-quantifying 28 genital HPV genotypes, including 12 high-risk HPVs (HR-HPV). Socio-demographic and health data were collected through e-questionnaires. RESULTS Any-HPV genotype (any of 28 assessed) was detected in 38% of the study cohort at mid-gestation and 28% at delivery, and HR-HPVs in 24% and 16%, respectively. The most prevalent genotype was HPV16: 6% at mid-gestation and 4% at delivery. Persistence of Any-HPV genotype was 52%, as was HR-HPV genotype-specific persistence. A short pre-conception relationship with the child's father and alcohol intake during pregnancy increased HPV infection risk at both time points. Low viral load at mid-gestation was associated with clearance of HPV infections at delivery. CONCLUSION HPV prevalence was higher at mid-gestation compared with delivery, and low viral load was associated with clearance of HPV at delivery.
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Affiliation(s)
- Magdalena R Værnesbranden
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway; University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway.
| | - Johanna Wiik
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway; Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Katrine Sjøborg
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway
| | - Anne Cathrine Staff
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Karin C Lødrup Carlsen
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Guttorm Haugen
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Gunilla Hedlin
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Katarina Hilde
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway
| | - Björn Nordlund
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Camilla F Nystrand
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Anbjørg Rangberg
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Eva Maria Rehbinder
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Department of Dermatology and Venereology, Oslo University Hospital, Oslo, Norway
| | - Knut Rudi
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Corina Silvia Rueegg
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Yvonne Sandberg
- Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Sigrid Sjelmo
- Department of Obstetrics and Gynecology, Østfold Hospital Trust, Kalnes, Norway
| | - Håvard O Skjerven
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Cilla Söderhäll
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Riyas Vettukattil
- University of Oslo, Faculty of Medicine, Institute of Clinical Medicine, Oslo, Norway; Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Christine M Jonassen
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway; Genetic Unit, Centre for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
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Abstract
Human papillomavirus (HPV) is the first identified necessary cause of human cancers and is associated with nearly 100% of all cervical cancers. Compared to the general female populations, HIV+ women have higher prevalence and incidence of cervical HPV infections, higher risks of persistent HPV infections and subsequent cervical intraepithelial lesions, and a higher incidence of cervical cancer. Although the wide use of combined antiretroviral therapy (cART) has improved the immune function and the longevity of HIV+ women, the incidence of cervical cancer in HIV+ women has not declined. For HIV+ women who follow routine cervical cancer screenings, their incidence of cervical cancer is comparable to that in HIV-negative women. Thus, adherence to the recommended cervical cancer screening is still critical for HIV+ women to prevent cervical cancer. Prophylactic HPV vaccines may also benefit HIV+ women, but prospective studies are needed to determine the effectiveness of HPV vaccination on reducing cervical cancer incidence in HIV+ women.
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Affiliation(s)
- Ping Du
- Department of Medicine, Department of Public Health Sciences, Penn State Hershey College of Medicine, 90 Hope Drive, Suite 2200, A210, Hershey, PA, USA.
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Asciutto KC, Ernstson A, Forslund O, Borgfeldt C. Self-sampling with HPV mRNA analyses from vagina and urine compared with cervical samples. J Clin Virol 2018; 101:69-73. [PMID: 29433016 DOI: 10.1016/j.jcv.2018.02.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/14/2018] [Accepted: 02/02/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND In order to increase coverage in the organized cervical screening program, self-sampling with HPV analyses has been suggested. OBJECTIVES The aim was to compare human papillomavirus (HPV) mRNA detection in vaginal and urine self-collected samples with clinician-taken cervical samples and the corresponding clinician-taken histological specimens. STUDY DESIGN Self-collected vaginal, urine and clinician-taken cervical samples were analyzed from 209 women with the Aptima mRNA assay (Hologic Inc, MA, USA). Cervical cytology, colposcopy, biopsy and/or the loop electrosurgical excision procedure (LEEP) were performed in every examination. RESULTS The sensitivity of the HPV mRNA test in detecting high-grade squamous intraepithelial lesions (HSIL)/adenocarcinoma in situ (AIS)/cancer cases was as follows: for the vaginal self-samples 85.5% (95% CI; 75.0-92.8), the urinary samples 44.8% (95% CI; 32.6-57.4), and for routine cytology 81.7% (95% CI; 70.7-89.9). For the clinician-taken cervical HPV samples the sensitivity of the HPV mRNA test in detecting HSIL/AIS/cancer was 100.0% (95% CI; 94.9-100.0). The specificity of the HPV mRNA was similar for the clinician-taken cervical HPV samples and the self-samples: 49.0% vs. 48.1%. The urinary HPV samples had a specificity of 61.9% and cytology had a specificity of 93.3%. CONCLUSION The sensitivity of the Aptima HPV mRNA test in detecting HSIL/AIS/cancer from vaginal self-samples was similar to that of routine cytology. The Aptima HPV mRNA vaginal self-sampling analysis may serve as a complement in screening programs.
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Affiliation(s)
| | - Avalon Ernstson
- Department of Obstetrics and Gynecology, Skåne University Hospital, Lund, Lund University, Sweden
| | - Ola Forslund
- Department of Clinical Microbiology, Skåne University Hospital, Lund, Lund University, Sweden
| | - Christer Borgfeldt
- Department of Obstetrics and Gynecology, Skåne University Hospital, Lund, Lund University, Sweden.
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Cómbita AL, Gheit T, González P, Puerto D, Murillo RH, Montoya L, Vorsters A, Van Keer S, Van Damme P, Tommasino M, Hernández-Suárez G, Sánchez L, Herrero R, Wiesner C. Comparison between Urine and Cervical Samples for HPV DNA Detection and Typing in Young Women in Colombia. Cancer Prev Res (Phila) 2016; 9:766-71. [PMID: 27417431 DOI: 10.1158/1940-6207.capr-16-0038] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/24/2016] [Indexed: 11/16/2022]
Abstract
Urine sampling for HPV DNA detection has been proposed as an effective method for monitoring the impact of HPV vaccination programs; however, conflicting results have been reported. The goal of this study was to evaluate the performance of optimized urine HPV DNA testing in women aged 19 to 25 years. Optimization process included the use of first void urine, immediate mixing of urine with DNA preservative, and the concentration of all HPV DNA, including cell-free DNA fragments. Urine and cervical samples were collected from 535 young women attending cervical screening at health centers from two Colombian cities. HPV DNA detection and genotyping was performed using an HPV type-specific multiplex genotyping assay, which combines multiplex polymerase chain reaction with bead-based Luminex technology. Concordance between HPV DNA detection in urine and cervical samples was determined using kappa statistics and McNemar tests. The accuracy of HPV DNA testing in urine samples was evaluated measuring sensitivity and specificity using as reference the results obtained from cervical samples. Statistical analysis was performed using STATA11.2 software. The findings revealed an overall HPV prevalence of 60.00% in cervical samples and 64.72% in urine samples, HPV-16 being the most frequent HPV type detected in both specimens. Moreover, our results indicate that detection of HPV DNA in first void urine provides similar results to those obtained with cervical samples and can be used to monitor HPV vaccination trials and programs as evidenced by the substantial concordance found for the detection of the four vaccine types. Cancer Prev Res; 9(9); 766-71. ©2016 AACR.
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Affiliation(s)
- Alba Lucía Cómbita
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología (INC), Bogotá, Colombia. Departamento de Microbiología, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia.
| | - Tarik Gheit
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Paula González
- Proyecto Epidemiológico Guanacaste, Fundación INCIENSA, Guanacaste, Costa Rica
| | - Devi Puerto
- Grupo de Investigación en Salud Pública y Vigilancia Epidemiológica, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
| | - Raúl Hernando Murillo
- Grupo de Investigación en Salud Pública y Vigilancia Epidemiológica, Instituto Nacional de Cancerología (INC), Bogotá, Colombia. Early Detection and Prevention Section, International Agency for Research on Cancer, Lyon, France
| | - Luisa Montoya
- Unidad de Análisis, Subdirección de Investigaciones, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
| | - Alex Vorsters
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerpen, Belgium
| | - Severien Van Keer
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerpen, Belgium
| | - Pierre Van Damme
- Centre for the Evaluation of Vaccination, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerpen, Belgium
| | - Massimo Tommasino
- Infections and Cancer Biology Group, International Agency for Research on Cancer, Lyon, France
| | - Gustavo Hernández-Suárez
- Grupo de Investigación en Salud Pública y Vigilancia Epidemiológica, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
| | - Laura Sánchez
- Grupo de Investigación en Biología del Cáncer, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
| | - Rolando Herrero
- Early Detection and Prevention Section, International Agency for Research on Cancer, Lyon, France
| | - Carolina Wiesner
- Grupo de Investigación en Salud Pública y Vigilancia Epidemiológica, Instituto Nacional de Cancerología (INC), Bogotá, Colombia
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Simpson S, Blomfield P, Cornall A, Tabrizi SN, Blizzard L, Turner R. Front-to-back & dabbing wiping behaviour post-toilet associated with anal neoplasia & HR-HPV carriage in women with previous HPV-mediated gynaecological neoplasia. Cancer Epidemiol 2016; 42:124-32. [PMID: 27107173 DOI: 10.1016/j.canep.2016.04.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 04/04/2016] [Accepted: 04/05/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Anal cancer is a human papillomavirus (HPV)-mediated neoplasia of the anal squamous epithelium. Anal cancer is much more common among women, particularly those with a previous high-grade gynaecological neoplasia. METHODS Cross-sectional study of women with a previous HPV-mediated gynaecological neoplasia in Tasmania, Australia. Women presenting for follow-up gynaecological care had anal swab samples taken for anal cytology by Hologic Liquid ThinPrep, followed by HPV genotyping. Women with abnormal anal cytology were invited for high-resolution anoscopy. Potential risk factors, including post-toilet wiping behaviours, were queried by questionnaire while clinical covariates were extracted from medical records. Covariates of anal outcomes evaluated by log-binomial and log-multinomial regression. RESULTS From 163 women enrolled in the study, 65 (39.9%) had abnormal cytology, with 46 (28.2%) being high-grade. Of the 50 women with abnormal anal cytology having high-resolution anoscopy, 32 (64.0%) had abnormal histology with 13 (26.0%) being high-grade. Of the 123 women tested for HR-HPV DNA, 48 (39.0%) had HR-HPV detected, the most common genotypes being 16 and 51 (14/123, 11.4% for both). In addition to some known anal cancer risk factors, we found front-to-back wiping was associated with significantly increased (Prevalence ratio (PR) range: 1.99-3.60) prevalence of cytological and histological abnormality and HR-HPV carriage/co-carriage, while dabbing post-toilet was significantly associated with decreased prevalences (PR range: 0.50-0.62). CONCLUSIONS Post-toilet wiping behaviours were significantly associated with the prevalence of anal cytological, histological and HR-HPV carriage outcomes. This suggests a biologically plausible mechanism for HR-HPV introduction and the higher frequencies of anal neoplasia in women.
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Affiliation(s)
- Steve Simpson
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
| | - Penny Blomfield
- Gynaecologic Oncology, Royal Hobart Hospital, Hobart, Australia; School of Medicine, University of Tasmania, Hobart, Australia
| | - Alyssa Cornall
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Australia; Murdoch Childrens Research Institute, Parkville, Australia
| | - Sepehr N Tabrizi
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Australia; Murdoch Childrens Research Institute, Parkville, Australia; Department of Obstetrics and Gynaecology, University of Melbourne, Parkville, Australia
| | - Leigh Blizzard
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia
| | - Richard Turner
- School of Medicine, University of Tasmania, Hobart, Australia
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Burroni E, Bonanni P, Sani C, Lastrucci V, Carozzi F, Iossa A, Andersson KL, Brandigi L, Di Pierro C, Confortini M, Levi M, Boccalini S, Indiani L, Sala A, Tanini T, Bechini A, Azzari C. Human papillomavirus prevalence in paired urine and cervical samples in women invited for cervical cancer screening. J Med Virol 2014; 87:508-15. [PMID: 25418873 DOI: 10.1002/jmv.24085] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2014] [Indexed: 11/08/2022]
Abstract
With the introduction of Human papillomavirus (HPV) vaccination in young girls in 2007, it is important to monitor HPV infections and epidemiological changes in this target population. The present study has evaluated the detection of human papillomavirus DNA in paired cervical and urine samples to understand if HPV testing in urine could be used as non-invasive method to monitor HPV status in young women. The study enrolled 216 twenty five-year-old women, resident in Florence and invited for the first time to the cervical cancer Screening Program within a project evaluating the impact of HPV vaccination. HPV genotyping was performed on 216 paired urine and cervical samples. The overall concordance between cervix and urine samples, investigated by HPV genotyping (INNO-LiPA HPV Genotyping Extra), was: 85.6% (184/215), 84.6% (182/215), 80% (172/215) when the same HPV, at least the same HR HPV and all HR HPV, respectively, were detected. HPV type specific concordance in paired urine and cervical samples was observed in 85.8% (175/204) of women with normal cytology and in seven out of nine women with abnormal cytology. Urine seems to be a suitable and reliable biological material for HPV DNA detection as evidenced by the high concordance with HPV detected in cervical samples. These results suggest that urine could be a good noninvasive tool to monitor HPV infection in vaccinated women.
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Affiliation(s)
- Elena Burroni
- Unit of Analytical and Biomolecular Cytology, ISPO, Florence, Italy
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Pathak N, Dodds J, Zamora J, Khan K. Accuracy of urinary human papillomavirus testing for presence of cervical HPV: systematic review and meta-analysis. BMJ 2014; 349:g5264. [PMID: 25232064 PMCID: PMC4166201 DOI: 10.1136/bmj.g5264] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To determine the accuracy of testing for human papillomavirus (HPV) DNA in urine in detecting cervical HPV in sexually active women. DESIGN Systematic review and meta-analysis. DATA SOURCES Searches of electronic databases from inception until December 2013, checks of reference lists, manual searches of recent issues of relevant journals, and contact with experts. ELIGIBILITY CRITERIA Test accuracy studies in sexually active women that compared detection of urine HPV DNA with detection of cervical HPV DNA. DATA EXTRACTION AND SYNTHESIS Data relating to patient characteristics, study context, risk of bias, and test accuracy. 2 × 2 tables were constructed and synthesised by bivariate mixed effects meta-analysis. RESULTS 16 articles reporting on 14 studies (1443 women) were eligible for meta-analysis. Most used commercial polymerase chain reaction methods on first void urine samples. Urine detection of any HPV had a pooled sensitivity of 87% (95% confidence interval 78% to 92%) and specificity of 94% (95% confidence interval 82% to 98%). Urine detection of high risk HPV had a pooled sensitivity of 77% (68% to 84%) and specificity of 88% (58% to 97%). Urine detection of HPV 16 and 18 had a pooled sensitivity of 73% (56% to 86%) and specificity of 98% (91% to 100%). Metaregression revealed an increase in sensitivity when urine samples were collected as first void compared with random or midstream (P=0.004). LIMITATIONS The major limitations of this review are the lack of a strictly uniform method for the detection of HPV in urine and the variation in accuracy between individual studies. CONCLUSIONS Testing urine for HPV seems to have good accuracy for the detection of cervical HPV, and testing first void urine samples is more accurate than random or midstream sampling. When cervical HPV detection is considered difficult in particular subgroups, urine testing should be regarded as an acceptable alternative.
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Affiliation(s)
- Neha Pathak
- Women's Health Research Unit, Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and dentistry, London E1 2AB, UK
| | - Julie Dodds
- Women's Health Research Unit, Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and dentistry, London E1 2AB, UK
| | - Javier Zamora
- Women's Health Research Unit, Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and dentistry, London E1 2AB, UK Clinical Biostatistics Unit, Hospital Ramon y Cajal (IRYCIS) and CIBER Epidemiologia y Salud Publica, Madrid, Spain
| | - Khalid Khan
- Women's Health Research Unit, Centre for Primary Care and Public Health, Blizard Institute, Barts and The London School of Medicine and dentistry, London E1 2AB, UK
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Franciscatto LG, Silva CM, Barcellos RB, Angeli S, Silva MS, Almeida SE, Rossetti ML. Comparison of urine and self-collected vaginal samples for detecting human papillomavirus DNA in pregnant women. Int J Gynaecol Obstet 2014; 125:69-72. [DOI: 10.1016/j.ijgo.2013.09.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 09/19/2013] [Accepted: 12/23/2013] [Indexed: 11/29/2022]
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10
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Comparison of human papillomavirus detections in urine, vulvar, and cervical samples from women attending a colposcopy clinic. J Clin Microbiol 2013; 52:187-92. [PMID: 24197879 DOI: 10.1128/jcm.01623-13] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
While urine-based sampling for human papillomavirus (HPV) is being explored as a simple and noninvasive approach for cervical cancer screening, data comparing HPV genotyping in urine and those in cellular sampling of the cervix and vulva, and their correlation with rigorously confirmed cervical disease status, are sparse. We performed HPV genotyping on voided-urine and clinician-collected vulvar and cervical samples from 72 women undergoing colposcopy. Although urine-based HPV carcinogenic HPV detection was lower (58.3%) than cervical (73.6%) and vulvar (72.1%) detection (P = 0.05 and 0.07, respectively), the agreement of urine HPV with cervical and vulvar HPV was moderate (kappa = 0.55) and substantial (kappa = 0.62), respectively. Urine-based carcinogenic HPV detection had a clinical sensitivity of 80.8% (95% confidence interval [CI] = 60.7 to 93.5) and a specificity of 53.3% (95% CI = 37.9 to 68.3) for diagnosing cervical intraepithelial neoplasia grades 2/3 (CIN2/3) on histology; 90.0% of CIN3 was positive for urine HPV. The corresponding sensitivity and specificity values for vulvar sampling were 92% (95% CI = 74 to 99) and 40.5% (95% CI = 25.6 to 56.7), and those for cervical sampling were 96.2% (95% CI = 80.4 to 99.9) and 40% (95% CI = 25.7 to 55.7), respectively. HPV16 was the most common carcinogenic genotype detectable in 25% of urine, 33.8% of vulvar, and 31.9% of cervical samples overall, with prevalence increasing with cervical disease grade, regardless of the sampling method. Stronger cervical HPV PCR signal strengths were associated with increased frequency of urine HPV detection. In summary, the relatively lower detection rates but comparable clinical performance of urine-based HPV sampling underscore the need for larger studies to evaluate urine-based sampling for cervical cancer screening, epidemiologic studies, and postvaccination HPV disease surveillance.
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11
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Classical molecular tests using urine samples as a potential screening tool for human papillomavirus detection in human immunodeficiency virus-infected women. J Clin Microbiol 2013; 51:3688-93. [PMID: 23985908 DOI: 10.1128/jcm.01302-13] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Human papillomavirus (HPV) is the main risk factor associated with the development of cervical cancer (CC); however, there are other factors, such as immunosuppression caused by the human immunodeficiency virus (HIV), that favor progression of the illness. This study was thus aimed at evaluating the functionality of classical PCR-based molecular tests for the generic identification of HPV DNA (GP5+/GP6+, MY09/MY11, and pU1M/2R primers, individually or in combination) using cervical and urine samples from 194 HIV-positive women. Infected samples were tested with type-specific primers for six high-risk types (HPV-16, -18, -31, -33, -45, and -58) and two low-risk types (HPV-6 and -11). HPV infection prevalence rates were 70.1% for the cervical samples and 63.9% for the urine samples. HPV-16 was the most prevalent viral type in the cervical and urine samples, with higher rates of multiple infections than single infections detected in such samples. HPV DNA detection by PCR (mainly with the pU1M/2R primer set) in urine samples was positively associated with abnormal cytological findings (atypical squamous cells of undetermined significance/squamous intraepithelial lesions [ASCUS/SIL]). It was determined that the operative characteristics for detection of cytological abnormalities were similar for cervical and urine samples. This suggested using PCR for the detection of HPV DNA in urine samples as a potential screening strategy for CC prevention in future prevention and control programs along with currently implemented strategies for reducing the impact of the disease, i.e., urine samples are economical, are easy to collect, have wide acceptability among women, and have operative characteristics similar to those of cervical samples.
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12
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Munoz M, Camargo M, Soto-De Leon SC, Sanchez R, Parra D, Pineda AC, Sussmann O, Perez-Prados A, Patarroyo ME, Patarroyo MA. Human papillomavirus detection from human immunodeficiency virus-infected Colombian women's paired urine and cervical samples. PLoS One 2013; 8:e56509. [PMID: 23418581 PMCID: PMC3572052 DOI: 10.1371/journal.pone.0056509] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 01/10/2013] [Indexed: 11/29/2022] Open
Abstract
Infection, coinfection and type-specific human papillomavirus (HPV) distribution was evaluated in human immunodeficiency virus (HIV)-positive women from paired cervical and urine samples. Paired cervical and urine samples (n = 204) were taken from HIV-positive women for identifying HPV-DNA presence by using polymerase chain reaction (PCR) with three generic primer sets (GP5+/6+, MY09/11 and pU1M/2R). HPV-positive samples were typed for six high-risk HPV (HR-HPV) (HPV-16, -18, -31, -33, -45 and -58) and two low-risk (LR-HPV) (HPV-6/11) types. Agreement between paired sample results and diagnostic performance was evaluated. HPV infection prevalence was 70.6% in cervical and 63.2% in urine samples. HPV-16 was the most prevalent HPV type in both types of sample (66.7% in cervical samples and 62.0% in urine) followed by HPV-31(47.2%) in cervical samples and HPV-58 (35.7%) in urine samples. There was 55.4% coinfection (infection by more than one type of HPV) in cervical samples and 40.2% in urine samples. Abnormal Papanicolau smears were observed in 25.3% of the women, presenting significant association with HPV-DNA being identified in urine samples. There was poor agreement of cervical and urine sample results in generic and type-specific detection of HPV. Urine samples provided the best diagnosis when taking cytological findings as reference. In conclusion including urine samples could be a good strategy for ensuring adherence to screening programs aimed at reducing the impact of cervical cancer, since this sample is easy to obtain and showed good diagnostic performance.
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Affiliation(s)
- Marina Munoz
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- Universidad Nacional de Colombia, Bogotá, Colombia
| | - Milena Camargo
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Sara C. Soto-De Leon
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Ricardo Sanchez
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- Universidad Nacional de Colombia, Bogotá, Colombia
| | - Diana Parra
- Asistencia Científica de Alta Complejidad S.A.S., Bogotá, Colombia
| | - Andrea C. Pineda
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Otto Sussmann
- Asistencia Científica de Alta Complejidad S.A.S., Bogotá, Colombia
| | | | - Manuel E. Patarroyo
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- Universidad Nacional de Colombia, Bogotá, Colombia
| | - Manuel A. Patarroyo
- Fundación Instituto de Inmunología de Colombia (FIDIC), Bogotá, Colombia
- School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
- * E-mail:
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13
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Tanzi E, Bianchi S, Fasolo MM, Frati ER, Mazza F, Martinelli M, Colzani D, Beretta R, Zappa A, Orlando G. High performance of a new PCR-based urine assay for HPV-DNA detection and genotyping. J Med Virol 2012; 85:91-8. [PMID: 23097252 DOI: 10.1002/jmv.23434] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2012] [Indexed: 02/05/2023]
Abstract
Human papillomavirus (HPV) testing has been proposed as a means of replacing or supporting conventional cervical screening (Pap test). However, both methods require the collection of cervical samples. Urine sample is easier and more acceptable to collect and could be helpful in facilitating cervical cancer screening. The aim of this study was to evaluate the sensitivity and specificity of urine testing compared to conventional cervical smear testing using a PCR-based method with a new, designed specifically primer set. Paired cervical and first voided urine samples collected from 107 women infected with HIV were subjected to HPV-DNA detection and genotyping using a PCR-based assay and a restriction fragment length polymorphism method. Sensitivity, specificity, Positive Predictive Value (PPV), and Negative Predictive Value (NPV) were calculated using the McNemar's test for differences. Concordance between tests was assessed using the Cohen's unweighted Kappa (k). HPV DNA was detected in 64.5% (95% CI: 55.1-73.1%) of both cytobrush and urine samples. High concordance rates of HPV-DNA detection (k = 0.96; 95% CI: 0.90-1.0) and of high risk-clade and low-risk genotyping in paired samples (k = 0.80; 95% CI: 0.67-0.92 and k = 0.74; 95% CI: 0.60-0.88, respectively) were observed. HPV-DNA detection in urine versus cervix testing revealed a sensitivity of 98.6% (95% CI: 93.1-99.9%) and a specificity of 97.4% (95% CI: 87.7-99.9%), with a very high NPV (97.4%; 95% CI: 87.7-99.9%). The PCR-based assay utilized in this study proved highly sensitive and specific for HPV-DNA detection and genotyping in urine samples. These data suggest that a urine-based assay would be a suitable and effective tool for epidemiological surveillance and, most of all, screening programs.
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Affiliation(s)
- Elisabetta Tanzi
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
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14
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Bissett SL, Howell-Jones R, Swift C, De Silva N, Biscornet L, Parry JV, Saunders NA, Nathan M, Soldan K, Szarewski A, Cuzick J, Beddows S. Human papillomavirus genotype detection and viral load in paired genital and urine samples from both females and males. J Med Virol 2012; 83:1744-51. [PMID: 21837790 DOI: 10.1002/jmv.22167] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The ability to detect type-specific high risk HPV (HR-HPV) infections in samples from females and males is important for monitoring the epidemiology of HPV and the impact of vaccination. Type-specific detection concordance between paired urine and genital samples from females (n = 264) undergoing routine colposcopy and males (n = 88) attending a genito-urinary medicine clinic was evaluated using an in-house genotyping assay. The overall inter-rater agreement (κ) was 0.781 for female pairs and 0.346 for male pairs. Female urine had sensitivity for detection of HPV16/18 and HR-HPV of 75% and 84%, respectively, while male urine had sensitivities of 13% and 28%, respectively. Genital samples had a higher HPV DNA copy number than urine although a small proportion (10%) of urine samples had a higher copy number than the corresponding genital sample. The proportion of females with normal cytology positive for HPV16/18 was 19%, increasing to 57% in moderate or severely dyskaryotic samples. The same trend was seen in the corresponding urine (19-43%) compounded by the reduced sensitivity of this sample type. The HPV16 viral load in female genital samples, but not in urine, was weakly associated with cervical disease stage. Despite reduced sensitivity, urine appears to be an appropriate surrogate sample for type-specific HPV detection in females for epidemiological objectives. The lower sensitivity and lack of association between viral load and disease stage in urine suggest that urine may not be useful for clinical management of HPV infection. The utility of urine for type-specific detection in males is less certain.
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Affiliation(s)
- Sara L Bissett
- Virus Reference Department, Centre for Infections, Health Protection Agency, London, United Kingdom
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15
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Carvalho FT, Gonçalves TR, Faria ER, Shoveller JA, Piccinini CA, Ramos MC, Medeiros LRF. Behavioral interventions to promote condom use among women living with HIV. Cochrane Database Syst Rev 2011; 2011:CD007844. [PMID: 21901711 PMCID: PMC11366414 DOI: 10.1002/14651858.cd007844.pub2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND High rates of HIV infection among women of reproductive age have dramatic consequences for personal and public health. Prophylaxis during sexual intercourse in the form of condoms has been the most effective way to prevent both STI and HIV transmission among people living with HIV. OBJECTIVES To investigate the effectiveness of behavioral interventions in promoting condom use among women living with HIV. SEARCH STRATEGY We conducted a comprehensive literature search in several scientific databases, clinical trials databases, conference proceedings, and conference websites to identify studies produced between 1980 and May 2010 that met our selection criteria. SELECTION CRITERIA Studies were included in the analysis if they conducted a randomized controlled trial that examined the effects of behavioral interventions on condom use among HIV-positive women; considered at least one HIV-related behavioral outcome (e.g., reported protected anal, vaginal, or oral sex) or biological outcome (e.g., acquisition of STIs); and one follow-up assessment three months or more after the intervention. Studies were assessed irregardless of langauge or publication status. DATA COLLECTION AND ANALYSIS We used random effects models to summarize odds ratios (ORs) that compared intervention and control groups with respect to a dichotomous outcome (consistent versus inconsistent condom use). We used funnel plots to examine publication bias and a χ(2) statistic to test for heterogeneity. The methodological and evidence quality was evaluated through risk of bias criteria and the GRADE system, respectively. MAIN RESULTS Five primary studies that collectively researched a total of 725 women living with HIV were analysed. When compared to standard care or minimal HIV support intervention, meta-analysis showed that behavioral interventions had no effect on increasing condom use among HIV-positive women. This finding was consistent at various follow-up meetings (3, 6, and 12-months) as well as over the entire 12-month follow-up period (OR= 0.82; 95% CI 0.65-1.04; p=0.11). Only one study presented adequate data to analyze the relationship between behavioral interventions and STI incidence. Studies included in this analysis demonstrated low risk of bias based on the risk of bias criteria. However, sample size was considered inadequate across all studies. AUTHORS' CONCLUSIONS Meta-analysis shows that behavioral interventions have little effect on increasing condom use among HIV-positive women. However, these findings should be used with caution since results were based on a few small trials that were targeted specifically towards HIV-positive women. To decrease sexual transmission of HIV among this population, we recommend interventions that combine condom promotion, family planning provision and counselling, and efforts to reduce viral loads among HIV-positive women and their partners (e.g., HAART treatment provision). New research is needed to address the needs of HIV-positive women, including an assessment of the impact of interventions that combine safer sexual behavior and harm reduction approaches.
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Affiliation(s)
- Fernanda T Carvalho
- Centro de Estudos de Aids / DST do Rio Grande do Sul (CEARGS)Rua Demétrio Ribeiro, 55/04CentroPorto AlegreRSBrazilCEP 90.010‐312
| | - Tonantzin R Gonçalves
- Universidade Federal do Rio Grande do SulPost‐graduation program in PsychologyPorto AlegreRio Grande do SulBrazil
| | | | - Jean A Shoveller
- University of British Columbia5804 Fairview AvenueVancouverBCCanadaV6T 1Z3
| | - C A Piccinini
- Universidade Federal do Rio Grande do SulPorto AlegreBrazil
| | - Mauro C Ramos
- Centro de Estudos de Aids / DST do Rio Grande do Sul (CEARGS)Rua Demétrio Ribeiro, 55/04CentroPorto AlegreRSBrazilCEP 90.010‐312
| | - Lídia RF Medeiros
- Post‐graduation Program in Medical Sciences, Universidade Federal do Rio Grande do SulSocial Medicine/EpidemiologyJose de Alencar 1244, 1009 Menino DeusPorto AlegreRio Grande do SulBrazil90880‐480
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Cuschieri K, Nandwani R, McGough P, Cook F, Hogg L, Robertson C, Cubie H. Urine testing as a surveillance tool to monitor the impact of HPV immunization programs. J Med Virol 2011; 83:1983-7. [PMID: 21915874 DOI: 10.1002/jmv.22183] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2011] [Indexed: 11/12/2022]
Abstract
HPV surveillance is necessary to monitor the impact and success of HPV immunization programs. This study was designed to evaluate the performance of HPV testing in urine to assess its suitability for epidemiological and surveillance purposes. A total of 90 females and 117 males were recruited from a UK drop-in clinic offering integrated sexual health services. A urine sample and comparator gold-standard sample (cervical liquid-based cytology sample or penile swab) was collected from each subject. HPV detection was performed using a PCR-based assay. Discrepancy between the two overall distributions [urine vs. gold standard (GS)] was measured. At the individual level, sensitivity and specificity of HPV detection in urine versus GS was measured. Prevalence of HPV was higher in urine compared to GS in both females and males. At the individual level, sensitivity of urine versus GS for HPV detection was 90.5% (79.3-96.9) and 55.9% (37.8-72.8) in females and males, respectively. The overall distribution of HPV types in urine was similar to that in gold standard, (P = 0.78; male, P = 0.88; female). Type-specific matches in urine versus GS were achieved in 71% (61-79.5) and 63.2% (54.2-71.4) of samples from females and males, respectively. Urine, particularly from females, is a useful biospecimen for HPV surveillance purposes. Further examination into the usefulness of urine from males, including choice of relevant gold-standard comparator, is required.
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Affiliation(s)
- Kate Cuschieri
- Scottish HPV Reference Laboratory, Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
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Detection of human papillomavirus DNA in urine. A review of the literature. Eur J Clin Microbiol Infect Dis 2011; 31:627-40. [PMID: 21818524 DOI: 10.1007/s10096-011-1358-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 06/26/2011] [Indexed: 10/18/2022]
Abstract
The detection of human papillomavirus (HPV) DNA in urine, a specimen easily obtained by a non-invasive self-sampling method, has been the subject of a considerable number of studies. This review provides an overview of 41 published studies; assesses how different methods and settings may contribute to the sometimes contradictory outcomes; and discusses the potential relevance of using urine samples in vaccine trials, disease surveillance, epidemiological studies, and specific settings of cervical cancer screening. Urine sampling, storage conditions, sample preparation, DNA extraction, and DNA amplification may all have an important impact on HPV DNA detection and the form of viral DNA that is detected. Possible trends in HPV DNA prevalence in urine could be inferred from the presence of risk factors or the diagnosis of cervical lesions. HPV DNA detection in urine is feasible and may become a useful tool but necessitates further improvement and standardization.
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18
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Oliver RTD. Circumcision and/or vaccination against human papillomavirus in the male to prevent infection with human immunodeficiency virus: an early surrogate endpoint for the later prevention of penile, prostate, anal and oral cancer? BJU Int 2009; 104:753-5. [PMID: 19426185 DOI: 10.1111/j.1464-410x.2009.08596.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- R T D Oliver
- Institute of Cancer, St Barts & The London School of Medicine, Queen Mary University of London, London, UK.
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