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HPV structure

Vânia Sammartino Mariano, Adriana Tarlá Lorenzi, Cristovam Scapulatempo-Neto, Maíra Degiovani Stein, Julio Cesar Possati Resende, Márcio Antoniazzi, Luisa Lina Villa, José Eduardo Levi, Adhemar Longatto-Filho, José Humberto Tavares Guerreiro Fregnani
OBJECTIVE: To evaluate the reproducibility and accuracy of the HPV16/18-E6 test. METHODS: The study population was comprised of 448 women with a previously abnormal Pap who were referred to the Barretos Cancer Hospital (Brazil) for diagnosis and treatment. Two cervical samples were collected immediately before colposcopy, one for the hr-HPV-DNA test and cytology and the other for the HPV16/18-E6 test using high-affinity monoclonal antibodies (mAb). Women with a histologic diagnosis of cervical intraepithelial neoplasia grade 2 or 3 were considered to be positive cases...
2016: PloS One
Caryn E Peterson, J Andrew Dykens, Noel T Brewer, Joanna Buscemi, Karriem Watson, DeLawnia Comer-Hagans, Zo Ramamonjiarivelo, Marian Fitzgibbon
Human papillomavirus (HPV) vaccine coverage remains low in the USA. The Society for Behavioral Medicine (SBM) supports the goals outlined by Healthy People 2020, the President's Cancer Panel, and the National Vaccine Advisory Committee to increase vaccination coverage among both males and females. SBM makes the following recommendations in support of efforts to reduce structural and other barriers to HPV vaccination services in order to increase rates of series completion. We encourage legislators and other policymakers to improve administration authority, insurance coverage, and reimbursement rates to healthcare providers who make the HPV vaccine available to adolescents; provide instrumental support to fund the development of school curricula on HPV vaccination; and increase public awareness that HPV vaccination can prevent cancer...
October 7, 2016: Translational Behavioral Medicine
Zuyi Chen, Yaling Jing, Qiang Wen, Xianping Ding, Shun Zhang, Tao Wang, Yiwen Zhang, Jianhui Zhang
BACKGROUND: Cervical cancer is associated with infection by certain subtypes of human papillomavirus (HPV). The L1 protein comprising HPV vaccine formulations elicits high-titre neutralizing antibodies and confers protection against specific HPV subtypes. HPV L2 protein is an attractive candidate for cross-protective vaccines. HPV-33 and HPV-58 are very prevalent among Chinese women. METHODS: To study the gene intratypic variations and polymorphisms of HPV-33 and HPV-58 L1/L2 in Sichuan China, HPV-33 and HPV-58 L1 and L2 genes were sequenced and compared with other genes submitted to GenBank...
October 7, 2016: Virology Journal
Juliana G Barnard, Amanda F Dempsey, Sarah E Brewer, Jennifer Pyrzanowski, Sara E Mazzoni, Sean T O'Leary
BACKGROUND: Many young and middle aged women receive their primary health care from their obstetrician-gynecologists (ob-gyn). A recent change to vaccination recommendations during pregnancy has forced the integration of new clinical processes at ob-gyn practices. Evidence-based best practices for vaccination delivery include the establishment of vaccination standing orders. OBJECTIVES: As part of an intervention to increase adoption of evidence-based vaccination strategies for women in safety-net and private ob-gyn settings, we conducted a qualitative study to identify the facilitators and barriers experienced by ob-gyn sites when establishing vaccination standing orders...
September 26, 2016: American Journal of Obstetrics and Gynecology
Sweta Sharma Saha, Rahul Roy Chowdhury, Nidhu Ranjan Mondal, Biman Chakravarty, Tanmay Chatterjee, Sudipta Roy, Sharmila Sengupta
PURPOSE: Previously, over-expression of the long noncoding RNA (lncRNA) HOTAIR has been found to be associated with the invasive and metastatic capacities of several epithelial cancers, including cervical cancer (CaCx). Here, we aimed at identifying functionally relevant genetic variants that may be employed to differentiate between clinically distinct CaCx subtypes, i.e., those exhibiting high HOTAIR levels and molecular signatures of metastasis and those lacking such signatures in the presence of low HOTAIR expression levels...
September 28, 2016: Cellular Oncology (Dordrecht)
A Wilson
National cervical screening programmes are considering a move to HPV primary screening. HPV testing requires the cervical sample to be placed in liquid based cytology (LBC) media and the triage cytology test will be carried out using LBC preparations. The resources required for conversion training from conventional smears to LBC should not be underestimated as errors can be made without the use of a structured training plan and monitoring of performance. In the UK, many labs have converted between the two main LBC technologies, Thinprep and Surepath...
October 2016: Cytopathology: Official Journal of the British Society for Clinical Cytology
Urška Grdadolnik, Maja Sočan
BACKGROUND: Socio-economic inequalities may have an impact on the uptake of selfpaid vaccines. The aim of the study was to identify the effect of some socio economic determinants on vaccination rates with self-paid human papilloma virus (HPV) and rotavirus (RV) vaccines. METHODS: Vaccination coverage data, available in electronic database (administered by the National Institute of Public Health), were collected at administrative unit level. The socio-economic determinants (the average gross pay in euros, the unemployment rate, the educational and households structure, the population density, the number of inhabitants, the number of children aged from 0 to 4, the number of women aged from 15 to 30) were extracted from Statistical Office of the Republic of Slovenia web page...
March 2016: Zdravstveno Varstvo
Christy A Widman, Elisa M Rodriguez, Frances Saad-Harfouche, Annamaria Masucci Twarozek, Deborah O Erwin, Martin C Mahoney
Human papillomavirus (HPV)-related morbidity and mortality remain a significant public health burden despite the availability of HPV vaccines for cancer prevention. We engaged clinicians and parents to identify barriers and opportunities related to adolescent HPV vaccination within a focused geographic region. This mixed-method study design used an interviewer-administered semi-structured interview with clinicians (n = 52) and a written self-administered survey with similar items completed by parents (n = 54)...
September 17, 2016: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
Ge Gao, Sarah H Johnson, George Vasmatzis, Christina E Pauley, Nicole M Tombers, Jan L Kasperbauer, David I Smith
Common fragile sites (CFS) are chromosome regions that are prone to form gaps or breaks in response to DNA replication stress. They are often found as hotspots for sister chromatid exchanges, deletions and amplifications in different cancers. Many of the CFS regions are found to span genes whose genomic sequence is greater than 1 Mb, some of which have been demonstrated to function as important tumor suppressors. CFS regions are also hotspots for human papillomavirus (HPV) integrations in cervical cancer. We used mate-pair sequencing to examine HPV integration events and chromosomal structural variations in 34 oropharyngeal squamous cell carcinoma (OPSCC)...
September 16, 2016: Genes, Chromosomes & Cancer
Kathleen Stanton, Francis H Kruszewski
Substantial benefits are realized through the use of read-across and in silico techniques to fill data gaps for structurally similar substances. Considerable experience in applying these techniques was gained under two voluntary high production volume (HPV) chemical programs - the International Council of Chemical Associations' (ICCA) Cooperative Chemicals Assessment Programme (with the cooperation of the Organization of Economic Cooperation and Development) and the U.S. Environmental Protection Agency's HPV Challenge Program...
September 7, 2016: Regulatory Toxicology and Pharmacology: RTP
Scott E Belanger, Jessica L Brill, Jane M Rawlings, Kathleen M McDonough, Ann C Zoller, Kenneth R Wehmeyer
Amine oxide (AO) is a cationically charged surfactant at environmental pH and has previously been assessed in the OECD (Organization for Economic Cooperation and Development) High Production Volume (HPV) chemicals program. Typical of cationic chemicals, AO is highly aquatically toxic. In this study we vastly improve the knowledge of AO toxicity by developing acute Quantitative Structure Activity Relationships (QSARs) for an alga (Desmodesmus subspicatus), an invertebrate (Daphnia magna) and a fish (Danio rerio) using the appropriate array of OECD Test Guidelines...
September 6, 2016: Ecotoxicology and Environmental Safety
Xiaotong He, Innocent O Maranga, Anthony W Oliver, Peter Gichangi, Lynne Hampson, Ian N Hampson
The oncogenic retrovirus human T-cell lymphotropic virus type 1 (HTLV-1) is endemic in some countries although its prevalence and relationship with other sexually transmitted infections in Sub-Saharan Africa is largely unknown. A novel endpoint PCR method was used to analyse the prevalence of HTLV-1 proviral DNA in genomic DNA extracted from liquid based cytology (LBC) cervical smears and invasive cervical carcinomas (ICCs) obtained from human immunodeficiency virus-positive (HIV+ve) and HIV-negative (HIV-ve) Kenyan women...
2016: Viruses
Mark Richard Stenger, Stefan Baral, Shauna Stahlman, Dan Wohlfeiler, Jerusha E Barton, Thomas Peterman
The trajectory of sexually transmissible infection (STI) incidence among gay and other men who have sex with men (MSM) suggests that incidence will likely remain high in the near future. STIs were hyperendemic globally among MSM in the decades preceding the HIV epidemic. Significant changes among MSM as a response to the HIV epidemic, caused STI incidence to decline, reaching historical nadirs in the mid-1990s. With the advent of antiretroviral treatment (ART), HIV-related mortality and morbidity declined significantly in that decade...
September 2, 2016: Sexual Health
J Wilm, S Schüler-Toprak, O Ortmann
Screening programs for cervical cancer and breast cancer lead to a clear reduction of mortality. Starting in 2018 screening for cervical cancer will be structured as an organized program as already exists for breast cancer. In future screening for cervical cancer will be primarily performed by human papillomavirus (HPV) testing at intervals of 5 years while cytological examination (Pap smear) will also be available as an additional or alternative procedure. For breast cancer screening in Germany an annual clinical examination with palpation and mammography screening at 2‑year intervals is provided for women aged between 50 and 69 years...
September 2016: Der Pathologe
Didi Surian, Dat Quoc Nguyen, Georgina Kennedy, Mark Johnson, Enrico Coiera, Adam G Dunn
BACKGROUND: In public health surveillance, measuring how information enters and spreads through online communities may help us understand geographical variation in decision making associated with poor health outcomes. OBJECTIVE: Our aim was to evaluate the use of community structure and topic modeling methods as a process for characterizing the clustering of opinions about human papillomavirus (HPV) vaccines on Twitter. METHODS: The study examined Twitter posts (tweets) collected between October 2013 and October 2015 about HPV vaccines...
August 29, 2016: Journal of Medical Internet Research
Hyoung Jin Kim, Hye-Lim Kwag, Hong-Jin Kim
BACKGROUND: Pseudoviruses (PsVs) that encapsidate a reporter plasmid DNA have been used as surrogates for native human papillomavirus (HPV), whose continuous production is technically difficult. HPV PsVs have been designed to form capsids made up of the major capsid protein L1 and the minor capsid proteins L2. HPV PsVs have been produced in 293TT cells transfected with plasmid expressing L1 and L2 protein and plasmid containing the reporter gene. Several studies have suggested that naturally occurring HPV virions contain cellular histones, and histones have also been identified in mature HPV PsVs...
2016: BMC Biotechnology
Wegene Borena, Margarethe Grünberger, Andreas Widschwendter, Karl Heinz Kraxner, Elisabeth Marth, Peter Mayr, Joerg Meier, Norman Ruth, Aida Tort Guerrero, Christian Marth, Dorothee Holm-von Laer
BACKGROUND: In order to evaluate the newly implemented gender-neutral HPV vaccination program, knowledge on the pre-vaccine prevalence of HPV infection is of paramount importance. Data on HPV infection among the women with no known previous cytological abnormalities are inexistent in Austria. This study presents data on the prevalence and distribution of HPV genotypes among women with no known cytological abnormalities in west Austria. METHODS: Women between 18 and 65 years of age attending annual cervical cancer screening examinations were included in the study...
2016: BMC Public Health
Ingrid T Katz, Laura M Bogart, Chong Min Fu, Yingna Liu, Joanne E Cox, Ronald C Samuels, Tami Chase, Pamela Schubert, Mark A Schuster
BACKGROUND: Despite recommendations that 11-12-year-olds receive the full three-shot Human papillomavirus (HPV) vaccine series, national HPV immunization coverage rates remain low. Disparities exist, with Blacks and Latinos being less likely than Whites to complete the series. We aimed to identify and compare barriers to HPV immunization perceived by healthcare providers, Black and Latino adolescents, and their caregivers to inform a clinic-based intervention to improve immunization rates...
2016: BMC Public Health
Steven Bernstein, Anna North, Jason Schwartz, Linda M Niccolai
OBJECTIVES: To examine state-level associations between voting patterns and adolescent coverage for at least 1 dose of human papillomavirus (HPV), tetanus-containing (Tdap), and meningococcal (MCV4) vaccination. METHODS: We classified states as "blue" (Democratic affiliation) or "red" (Republican affiliation) based on the Presidential election results in 2012. We used multivariable models to adjust for potential confounding by sociodemographic and health care access characteristics and vaccination policies...
October 2016: American Journal of Public Health
Edith T Mupandawana, Ruth Cross
BACKGROUND: Human papillomavirus (HPV) is sexually transmitted and has been conclusively linked to cervical cancer and genital warts. Cervical cancer is attributed to approximately 1100 deaths annually in UK, and is the second most common female cancer globally. It has been suggested that black African women are more predisposed to HPV infection and cervical cancer. A vaccine has been developed to reduce HPV infection, and in the UK, has been offered to 12-13 year old adolescent girls through schools as part of their childhood immunization programme since 2008...
2016: Reproductive Health
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