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Human papillomavirus

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https://www.readbyqxmd.com/read/28737238/the-possible-role-of-human-papillomavirus-infection-in-the-development-of-lichen-sclerosus
#1
REVIEW
Anna K Hald, Jan Blaakaer
Lichen sclerosus (LS) is a chronic inflammatory skin disease of unknown origin predominantly affecting the anogenital area that causes pruritus and pain and is associated with an increased risk of malignancy. In some cases, LS vanishes after application of imiquimod, raising the question whether human papillomavirus (HPV) may have an etiopathogenic role in anogenital LS. The databases MEDLINE and Embase were systematically searched using the PRISMA guidelines. Twenty-seven papers were included that reported the prevalence of HPV in LS and in LS associated with neoplasia...
July 24, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28737019/clinical-outcomes-for-patients-presenting-with-n3-head-and-neck-squamous-cell-carcinoma-analysis-of-the-national-cancer-database
#2
Huaising C Ko, Shuai Chen, Aaron M Wieland, Menggang Yu, Andrew M Baschnagel, Gregory K Hartig, Paul M Harari, Matthew E Witek
BACKGROUND: There is a paucity of data regarding head and neck squamous cell carcinomas (HNSCCs) and N3 nodal disease. METHODS: Retrospective analysis of patients with N3 HNSCC identified in the National Cancer Database (NCDB) was performed. RESULTS: We identified 4867 patients with N3 HNSCC treated with primary surgery or chemoradiotherapy (CRT). Propensity-adjusted median survival was 54.2 and 44.8 months for surgery and CRT, respectively (P = ...
July 24, 2017: Head & Neck
https://www.readbyqxmd.com/read/28736202/primary-care-team-and-clinic-level-factors-affecting-hpv-vaccine-uptake
#3
Emmeline Chuang, Claudia Cabrera, Selene Mak, Beth Glenn, Michael Hochman, Roshan Bastani
OBJECTIVE: This study examined patient-, care team- and clinic-level factors associated with human papillomavirus (HPV) vaccine initiation and completion. METHODS: HPV vaccine initiation and completion rates among adolescents aged 9-18years were assessed using administrative data (n=38,277) from a large federally qualified health center serving predominantly Latino patients. Four clinics with particularly high and low adolescent HPV vaccine uptake were selected for in-depth case study analyses...
July 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28736201/text-message-reminders-for-vaccination-of-adolescents-with-chronic-medical-conditions-a-randomized-clinical-trial
#4
Annika M Hofstetter, Angela Barrett, Stewin Camargo, Susan L Rosenthal, Melissa S Stockwell
BACKGROUND: Many adolescents with chronic medical conditions (CMCs) are at risk of vaccine-preventable infection, yet are frequently under-vaccinated. Text message reminders, particularly those with embedded educational information, have been shown to increase general pediatric vaccination. Their use has not been studied specifically among adolescents with CMCs. METHODS: Eligible parents of adolescents with CMCs receiving care at one of 4 academically-affiliated pediatric clinics and requiring human papillomavirus (first dose), influenza, and/or pneumococcal polysaccharide vaccines were randomized in 4 consecutive cohorts to receive text message vaccine reminders with or without embedded educational information ("educational" vs...
July 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28736197/characterization-of-an-escherichia-coli-derived-human-papillomavirus-type-16-and-18-bivalent-vaccine
#5
Ying Gu, Minxi Wei, Daning Wang, Zhihai Li, Minghui Xie, Huirong Pan, Ting Wu, Jun Zhang, Shaowei Li, Ningshao Xia
Human papillomavirus (HPV) types 16 and 18 account for approximately 70% of cervical cancer worldwide. Neutralizing HPV prophylactic vaccines offer significant benefit, as they block HPV infection and prevent subsequent disease. However, the three licensed HPV vaccines that cover these two genotypes were produced in eukaryotic cells, which is expensive, particularly for low-income countries where HPV is highest. Here, we report a new HPV16 and -18 bivalent candidate vaccine produced from Escherichia coli. We used two strategies of N-terminal truncation of HPV L1 proteins and soluble non-fusion expression to generate HPV16 and HPV18 L1-only virus-like particles (VLPs) in a scalable process...
July 20, 2017: Vaccine
https://www.readbyqxmd.com/read/28733985/lalf32-51-e7-a-hpv-16-therapeutic-vaccine-candidate-forms-protein-body-like-structures-when-expressed-in-nicotiana-benthamiana-leaves
#6
Romana J R Yanez, Renate Lamprecht, Milaid Granadillo, Isis Torrens, Elsa Arcalís, Eva Stöger, Edward P Rybicki, Inga I Hitzeroth
High-risk Human papillomaviruses (HPVs) cause cervical cancer, and while there are good prophylactic vaccines on the market, these are ineffective against established infections, creating a clear need for therapeutic vaccines. The HPV E7 protein is one of the essential oncoproteins for the onset and maintenance of malignancy, and is therefore an ideal therapeutic vaccine target. We fused the HPV-16 E7 protein to the Limulus polyphemus anti-lipopolysaccharide factor (LALF32-51 ), a small hydrophobic peptide that can penetrate cell membranes and that has immunomodulatory properties...
July 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28733876/human-papillomavirus-type-8-e7-protein-binds-nuclear-myosin-1c-and-downregulates-the-expression-of-pre-rrna
#7
Evelyn Oswald, Eileen Reinz, Renate Voit, François Aubin, Angel Alonso, Eeva Auvinen
Our aim was to search for new cellular binding partners for the E6 and E7 oncogenes of beta human papillomaviruses (HPV), whose direct role in skin carcinogenesis has not been thoroughly investigated. By employing glutathione S-transferase pulldown and coimmunoprecipitation, we identified nuclear myosin 1c as a binding partner of HPV 8 E7 protein. As nuclear myosin 1c is an essential component of the RNA polymerase I transcription complex, we studied the effects of HPV 8 E7 protein expression on ribosomal RNA (rRNA) expression...
July 21, 2017: Virus Genes
https://www.readbyqxmd.com/read/28732044/the-prognostic-impact-of-human-papillomavirus-status-following-treatment-failure-in-oropharyngeal-cancer
#8
Eesha Dave, Umut Ozbek, Vishal Gupta, Eric Genden, Brett Miles, Marita Teng, Marshall Posner, Krzysztof Misiukiewicz, Richard L Bakst
INTRODUCTION: Despite the human papillomavirus conferring a better prognosis in the primary treatment setting, the prognostic impact of viral status after treatment failure in oropharyngeal squamous cell carcinoma patients is poorly understood. METHODS: We retrospectively identified 33 oropharyngeal squamous cell carcinoma (OPC) patients with local and/or distant disease recurrence post-treatment, and looked at metastatic patterns, time to failure and survival patterns by HPV status...
2017: PloS One
https://www.readbyqxmd.com/read/28730227/hpv-genotyping-and-p16%C3%A3-ki-67-dual-staining-in-the-detection-of-high-grade-cervical-lesion-in-patients-with-lsil-on-pap-smear
#9
Lavinia Cristina Moleriu, Ioan Sas, Adrian Claudiu RaŢiu, Mădălin Marius Margan, Cristina Anamaria Secoşan, Răzvan Ştefan Ilina, Florin George Horhat, Loredana Gabriela Stana, Dorin Grigoraş, LaurenŢiu Cornel Pirtea
p16÷Ki-67 dual-stained cytology, either alone or combined with human papillomavirus (HPV) 16÷18 genotyping, could be a useful tool for triage for colposcopy of HPV-positive patients. Based on this background, we aimed at comparing the diagnostic performance of the p16÷Ki-67 dual staining test, and high-risk HPV test for the detection of high-risk cervical intraepithelial neoplasia (CIN2÷3) in patients diagnosed with low-grade squamous intraepithelial lesion (LSIL) on Pap smear. We performed a retrospective study including 184 patients with LSIL cytology on Pap smear, of which 64 were referred for biopsy after colposcopy...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729879/safety-and-immunogenicity-of-the-quadrivalent-human-papillomavirus-qhpv-vaccine-in-hiv-positive-spanish-men-who-have-sex-with-men-msm
#10
Carmen Hidalgo-Tenorio, Jessica Ramírez-Taboada, Concepción Gil-Anguita, Javier Esquivias, Mohamed Omar-Mohamed-Balgahata, Antonio SamPedro, Miguel Lopez-Ruz, Juan Pasquau
BACKGROUND: Safety and immunogenicity of the quadrivalent human papillomavirus (qHPV) vaccine were evaluated in HIV-positive Spanish MSM. The prevalence of High Squamous Intraepithelial Lesions (HSIL) and genotypes of high-risk human papillomavirus (HR-HPV) were also determined, as well as risk factors associated with the presence of HR-HPV in anal mucosa. METHODS: This is a randomised, double blind, placebo-controlled trial of the quadrivalent HPV (qHPV) vaccine...
2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28728306/-interpretation-of-guidance-for-establishing-the-performance-characteristics-of-in-vitro-diagnostic-devices-for-the-detection-or-detection-and-differentiation-of-high-risk-human-papillomaviruses-issued-by-food-and-drug-administration-of-united-states-and-china
#11
R M Feng, W Chen, Y L Qiao
To establish the standardization of clinical verification designs for in vitro diagnostic devices(IVDs) of human papillomavirus, China Food and Drug Administration (CFDA) and United States Food and Drug Administration (FDA) issued guidelines of detailed study designs and effectiveness evaluation for accuracy validation and clinical performance of nucleic acid detection, respectively, including triage of a typical squamous cells of undetermined significance(ASC-US) patients and validation of combined screening and preliminary screening...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28728074/no-pain-no-gain-adjuvant-effects-of-alum-and-monophosphoryl-lipid-a-in-pertussis-and-hpv-vaccines
#12
REVIEW
Thomas C Mitchell, Carolyn R Casella
Development of non-infectious subunit vaccines is hampered by a slow pipeline of new adjuvants to replace or enhance alum in part because expectations of safety are high. Transient vaccine side effects are not clinical priorities because they cause no lasting harm and vaccine development has appropriately been focused on avoidance of serious adverse events. As a result, surprisingly little is known about the extent to which side effects caused by a vaccine's reactogencicity are predictive of successful immunization outcomes...
July 17, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28727989/oral-papillomatosis-in-immunocompromised-patients-a-case-series-of-kidney-transplant-recipients-and-myelodysplastic-syndrome
#13
Eun-Jung Kwak, Yun Hee Choi, Wonse Park, Eunae Sandra Cho
Solitary papilloma is a human papillomavirus (HPV)-induced benign indolent epithelial tumor with limited growth, whereas papillomatosis is an entirely different entity. Papillomatosis requires attention because of its aggressive and recurrent clinical progress with risks of dysplastic and malignant transformation. Recurrent respiratory papillomatosis (RRP) has a high prevalence of dysplasia and reports of transformation to carcinoma-ex-papillomatosis, especially when associated with low-risk HPV type 11. Although papillomatosis seldom occurs in the oral cavity, this report describes 3 cases of oral papillomatosis in immunocompromised patients, with 1 case identified as having HPV type 11...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28726109/the-study-of-immunogenicity-of-the-antigenic-protein-of-high-risk-oncogenic-type-of-the-human-papillomavirus-hpv16-l1-produced-in-the-plant-expression-system-on-the-base-of-transgenic-tomato
#14
R K Salyaev, N I Rekoslavskaya, A S Stolbikov, A V Tretyakova
The immunogenicity of plant-made peroral vaccine against cervical cancer was studied in mice during 342 days after vaccination with the material of tomato fruits genetically transformed with HPV16 L1 Ώ 5'UTR TMV. The immune response was found on day 4 after vaccination in blood serum of vaccinated mice. On days 90-100, the rise to maximum value of the level of antibodies to HPV16 L1 was in the range of 500 ng of the standard antibodies to HPV16 L1 (Santa Cruz Biotechnology, United States). This level of antibodies was retained until the end of the study...
May 2017: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28725677/a-population-based-study-of-cervical-cytology-findings-and-human-papillomavirus-infection-in-a-suburban-area-of-thailand
#15
Natacha Phoolcharoen, Nuttavut Kantathavorn, Thaniya Sricharunrat, Siriporn Saeloo, Waraphorn Krongthong
Despite the high incidence of cervical cancer in Thailand, large population-based studies on cervical cytology and HPV prevalence and genotype distribution are rare. This study aimed to determine cervical cytology results and the prevalence and distribution of HPV among Thai females in Bangkhayaeng subdistrict, Pathumthani province, Thailand. Of 4681 female inhabitants, aged 20-70 years, 1523 women finally participated in the study. Cervical samples using liquid-based cytology were collected during February-August 2013 and analyzed for HPV genotype by the LINEAR ARRAY® HPV Genotyping Test (Roche, USA)...
August 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/28725449/therapeutic-options-for-treatment-of-human-papillomavirus-associated-cancers-novel-immunologic-vaccines-adxs11-001
#16
REVIEW
Brett Miles, Howard P Safran, Bradley J Monk
Survival of patients with advanced, recurrent, or metastatic human papillomavirus (HPV)-associated cancer is suboptimal despite the availability of various treatment modalities. The recently developed bacterial vector Listeria monocytogenes (Lm) activates innate and adaptive immune responses and is expected to offer immunologic advantages. Axalimogene filolisbac (AXAL or ADXS11-001) is a novel immunotherapeutic based on the live, irreversibly attenuated Lm fused to the nonhemolytic fragment of listeriolysin O (Lm-LLO) and secretes the Lm-LLO-HPV E7 fusion protein targeting HPV-positive tumors...
2017: Gynecologic Oncology Research and Practice
https://www.readbyqxmd.com/read/28725164/cost-effectiveness-of-cervical-cancer-screening-and-preventative-cryotherapy-at-an-hiv-treatment-clinic-in-kenya
#17
Marita R Zimmermann, Elisabeth Vodicka, Joseph B Babigumira, Timothy Okech, Nelly Mugo, Samah Sakr, Louis P Garrison, Michael H Chung
OBJECTIVE: This study evaluated the potential cost-effectiveness of cervical cancer screening in HIV treatment clinics in Nairobi, Kenya. METHODS: A Markov model was used to project health outcomes and costs of cervical cancer screening and cryotherapy at an HIV clinic in Kenya using cryotherapy without screening, visual inspection with acetic acid (VIA), Papanicolaou smear (Pap), and testing for human papillomavirus (HPV). Direct and indirect medical and non-medical costs were examined from societal and clinic perspectives...
2017: Cost Effectiveness and Resource Allocation: C/E
https://www.readbyqxmd.com/read/28724760/uv-radiation-activates-toll-like-receptor-9-expression-in-primary-human-keratinocytes-an-event-inhibited-by-human-papillomavirus-type-38-e6-and-e7-oncoproteins
#18
Laura Pacini, Maria Grazia Ceraolo, Assunta Venuti, Giusi Melita, Uzma A Hasan, Rosita Accardi, Massimo Tommasino
Several lines of evidence indicate that cutaneous human papillomavirus (HPV) types belonging to the beta genus of the HPV phylogenetic tree synergise with UV radiation in the development of skin cancer. Accordingly, the E6 and E7 oncoproteins from some beta HPV types are able to deregulate pathways related to immune response and cellular transformation. Toll-like receptor 9 (TLR9), in addition to playing a role in innate immunity, has been shown to be involved in the cellular stress response. Using primary human keratinocytes (PHKs) as experimental models, we have shown that UV irradiation (and other cellular stresses) activates TLR9 expression...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28724554/prevalence-of-human-papillomavirus-in-self-taken-samples-from-screening-non-attenders
#19
J U H Lam, M Rebolj, D M Ejegod, H Pedersen, C Rygaard, E Lynge, E Harder, L T Thomsen, S K Kjaer, J Bonde
The Copenhagen Self-sampling Initiative (CSi) has shown how Human Papillomavirus (HPV)-based self-sampling can be used to increase screening participation among 23,632 non-attenders in Capital Region of Denmark. Here, we described the HPV prevalence and genotype frequency in 4824 self-samples using three HPV assays (CLART, Onclarity and HC2), and compared the results to the subsequent physician-taken follow-up samples. HPV self-sample findings were also compared to a reference population of routinely screened women (N=3347, from the Horizon study), undertaken in the same screening laboratory...
July 19, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28724543/cervical-cancer-screening-in-rural-bhutan-with-the-carehpv-test-on-self-collected-samples-an-ongoing-cross-sectional-population-based-study-reach-bhutan
#20
Iacopo Baussano, Sangay Tshering, Tashi Choden, Fulvio Lazzarato, Vanessa Tenet, Martyn Plummer, Silvia Franceschi, Gary M Clifford, Ugyen Tshomo
OBJECTIVES: The Bhutanese Screening Programme recommends a Pap smear every 3 years for women aged 25-65 years, and coverage ranges from 20% to 60%, being especially challenging in rural settings. The 'REACH-Bhutan' study was conducted to assess the feasibility and outcomes of a novel approach to cervical cancer screening in rural Bhutan. DESIGN: Cross-sectional, population-based study of cervical cancer screening based on the careHPV test on self-collected samples...
July 19, 2017: BMJ Open
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