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https://www.readbyqxmd.com/read/29035163/uptake-and-correlates-of-cervical-cancer-screening-among-hiv-infected-women-attending-hiv-care-in-uganda
#1
Rhoda K Wanyenze, John Baptist Bwanika, Jolly Beyeza-Kashesya, Shaban Mugerwa, Jim Arinaitwe, Joseph K B Matovu, Violet Gwokyalya, Dickson Kasozi, Justine Bukenya, Fred Makumbi
BACKGROUND: Human immunodeficiency virus (HIV)-infected women are at high risk of cervical cancer. OBJECTIVE: This study assessed uptake and correlates of cervical screening among HIV-infected women in care in Uganda. METHODS: A nationally representative cross-sectional survey of HIV-infected women in care was conducted from August to November 2016. Structured interviews were conducted with 5198 women aged 15-49 years, from 245 HIV clinics...
2017: Global Health Action
https://www.readbyqxmd.com/read/29021401/rnaseq-analysis-of-differentiated-keratinocytes-reveals-a-massive-response-to-late-events-during-human-papillomavirus-type-16-infection-including-loss-of-epithelial-barrier-function
#2
T Klymenko, Q Gu, I Herbert, A Stevenson, V Iliev, G Watkins, C Pollock, R Bhatia, K Cuschieri, P Herzyk, D Gatherer, S V Graham
The human papillomavirus (HPV) replication cycle is tightly linked to epithelial cell differentiation. To examine HPV-associated changes in the keratinocyte transcriptome, RNAs isolated from undifferentiated and differentiated cell populations of normal, spontaneously immortalised, keratinocytes (NIKS), and NIKS stably transfected with HPV16 episomal genomes (NIKS16), were compared using RNASeq. HPV16 infection altered expression of 2862 cellular genes. Next, to elucidate the role of keratinocyte gene expression in late events during the viral life cycle, RNASeq was carried out on triplicate differentiated populations of NIKS (uninfected) and NIKS16 (infected)...
October 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28959092/naturally-occurring-capsid-protein-variants-l1-of-human-papillomavirus-genotype-16-in-morocco
#3
Aissam El-Aliani, My Abdelaziz El Alaoui, Imane Chaoui, My Mustapha Ennaji, Mohammed Attaleb, Mohammed El Mzibri
HPV L1 protein is a corner stone in HPV structure, it's involved in the formation of the viral capsid; widely used as a systematic material and considered as the main component in vaccines development and production. The present study aims to characterize genetic variation of L1 gene of HPV 16 specimens and to evaluate in silico the impact of major variants on the epitope change affecting its conformational structure. A fragment of L1 gene from 35 HPV 16 confirmed specimens were amplified by PCR and sequenced...
2017: Bioinformation
https://www.readbyqxmd.com/read/28951471/crystal-structures-of-two-immune-complexes-identify-determinants-for-viral-infectivity-and-type-specific-neutralization-of-human-papillomavirus
#4
Zhihai Li, Daning Wang, Ying Gu, Shuo Song, Maozhou He, Jingjie Shi, Xinlin Liu, Shuangping Wei, Jinjin Li, Hai Yu, Qingbing Zheng, Xiaodong Yan, Timothy S Baker, Jun Zhang, Jason S McLellan, Shaowei Li, Ningshao Xia
Persistent, high-risk human papillomavirus (HPV) infection is the primary cause of cervical cancer. Neutralizing antibodies elicited by L1-only virus-like particles (VLPs) can block HPV infection; however, the lack of high-resolution structures has limited our understanding of the mode of virus infection and the requirement for type specificity at the molecular level. Here, we describe two antibodies, A12A3 and 28F10, that specifically bind to and neutralize HPV58 and HPV59, respectively, through two distinct binding stoichiometries...
September 26, 2017: MBio
https://www.readbyqxmd.com/read/28947419/integrated-analysis-of-whole-genome-chip-seq-and-rna-seq-data-of-primary-head-and-neck-tumor-samples-associates-hpv-integration-sites-with-open-chromatin-marks
#5
Dylan Z Kelley, Emily Flam, Evgeny Izumchenko, Ludmila Danilova, Hildegard A Wulf, Theresa Guo, Dzov A Singman, Bahman Afsari, Alyza Skaist, Michael Considine, Elena Stavrovskaya, Justin A Bishop, William H Westra, Zubair Khan, Wayne M Koch, David Sidranski, Sarah J Wheelan, Joseph Califano, Alexander V Favorov, Elana J Fertig, Daria A Gaykalova
Chromatin alterations mediate mutations and gene expression changes in cancer. Chromatin immunoprecipitation followed by sequencing (ChIP-Seq) has been utilized to study genome-wide chromatin structure in human cancer cell lines, yet numerous technical challenges limit comparable analyses in primary tumors. Here we have developed a new whole-genome analytical pipeline to optimize ChIP-Seq protocols on patient-derived xenografts from human papillomavirus-related (HPV+) head and neck squamous cell carcinoma (HNSCC) samples...
September 25, 2017: Cancer Research
https://www.readbyqxmd.com/read/28934154/why-human-papillomaviruses-activate-the-dna-damage-response-ddr-and-how-cellular-and-viral-replication-persists-in-the-presence-of-ddr-signaling
#6
REVIEW
Molly L Bristol, Dipon Das, Iain M Morgan
Human papillomaviruses (HPV) require the activation of the DNA damage response (DDR) in order to undergo a successful life cycle. This activation presents a challenge for the virus and the infected cell: how does viral and host replication proceed in the presence of a DDR that ordinarily arrests replication; and how do HPV16 infected cells retain the ability to proliferate in the presence of a DDR that ordinarily arrests the cell cycle? This raises a further question: why do HPV activate the DDR? The answers to these questions are only partially understood; a full understanding could identify novel therapeutic strategies to target HPV cancers...
September 21, 2017: Viruses
https://www.readbyqxmd.com/read/28933242/the-hpv-vaccine-knowledge-and-attitudes-among-public-health-nurses-and-general-practitioners-in-northern-norway-after-introduction-of-the-vaccine-in-the-school-based-vaccination-programme
#7
Karin Nilsen, Olaf Gjerløw Aasland, Elise Klouman
OBJECTIVE: To investigate knowledge of and attitudes to human papillomavirus (HPV) infection, HPV vaccination, cervical cancer, related sources of information and factors associated with willingness to vaccinate one's own daughter among primary health care (PHC) personnel. DESIGN: Cross-sectional study. SETTING: PHC. SUBJECTS: All public health nurses (PHNs) and general practitioners (GPs) in Northern Norway were invited to answer a structured electronic questionnaire; 31% participated (N = 220)...
September 21, 2017: Scandinavian Journal of Primary Health Care
https://www.readbyqxmd.com/read/28927464/cervical-cancer-screening-behavior-and-associated-factors-among-women-of-ugrachandi-nala-kavre-nepal
#8
Radha Acharya Pandey, Era Karmacharya
BACKGROUND: Cervical cancer in Nepal ranks as the first most frequent cancer among women. Primary prevention measures, such as prophylactic vaccines against high risk HPV, are now available. Over time, vaccination will decrease the prevalence of the disease among younger women; however, screening will still be needed. The objective of the study was to assess the cervical cancer screening behavior and its associated factors among women of Nala Village Development Committee (VDC), Kavre...
September 19, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28867768/keratinocyte-differentiation-dependent-human-papillomavirus-gene-regulation
#9
REVIEW
Sheila V Graham
Human papillomaviruses (HPVs) cause diseases ranging from benign warts to invasive cancers. HPVs infect epithelial cells and their replication cycle is tightly linked with the differentiation process of the infected keratinocyte. The normal replication cycle involves an early and a late phase. The early phase encompasses viral entry and initial genome replication, stimulation of cell division and inhibition of apoptosis in the infected cell. Late events in the HPV life cycle include viral genome amplification, virion formation, and release into the environment from the surface of the epithelium...
August 30, 2017: Viruses
https://www.readbyqxmd.com/read/28863867/results-on-exposure-during-pregnancy-from-a-pregnancy-registry-for-as04-hpv-16-18-vaccine
#10
Marta López-Fauqued, Julia Zima, Maria-Genalin Angelo, Jens-Ulrich Stegmann
OBJECTIVE: To assess pregnancy outcomes after exposure to AS04-HPV-16/18 vaccine (Cervarix, GSK, Belgium) prior to, or during pregnancy, as reported to a pregnancy registry. METHODS: A pregnancy exposure registry was established to collect data in the United Kingdom and the United States. Exposure was defined as vaccination with AS04-HPV-16/18 within 60days before the estimated conception date and delivery. Reporting was voluntary. RESULTS: Between September 2007 and November 2015, 306 pregnancy exposure reports were received of which 181 were prospective, evaluable reports...
September 25, 2017: Vaccine
https://www.readbyqxmd.com/read/28853678/hpv-related-squamous-cell-carcinoma-in-a-neovagina-after-male-to-female-gender-confirmation-surgery
#11
Jesús Bollo, Andrea Balla, Carlos Rodriguez Luppi, Carmen Martinez, Silvia Quaresima, Eduard M Targarona
Vaginoplasty by penile and scrotal skin inversion is a well-established technique for male-to-female gender confirmation surgery. In this setting, chronic inflammation and lacerations associated with history of human papillomavirus (HPV) infection may induce a high risk of malignant degeneration in the long term. A 78-year-old transgender woman was admitted with genital discomfort and neovaginal discharge. The patient's history revealed male-to-female gender confirmation surgery with construction of a neovagina by penile and scrotal skin inversion at 33 years of age...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28853284/polyamidoamine-decorated-nanodiamonds-as-a-hybrid-gene-delivery-vector-and-sirna-structural-characterization-at-the-charged-interfaces
#12
Dae Gon Lim, Nirmal Rajasekaran, Dukhee Lee, Nam Ah Kim, Hun Soon Jung, Sungyoul Hong, Young Kee Shin, Eunah Kang, Seong Hoon Jeong
Nanodiamonds have been discovered as a new exogenous material source in biomedical applications. As a new potent form of nanodiamond (ND), polyamidoamine-decorated nanodiamonds (PAMAM-NDs) were prepared for E7 or E6 oncoprotein-suppressing siRNA gene delivery for high risk human papillomavirus-induced cervical cancer, such as types 16 and 18. It is critical to understand the physicochemical properties of siRNA complexes immobilized on cationic solid ND surfaces in the aspect of biomolecular structural and conformational changes, as the new inert carbon material can be extended into the application of a gene delivery vector...
September 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28852043/comparison-of-vaginal-microbiota-sampling-techniques-cytobrush-versus-swab
#13
Anita Mitra, David A MacIntyre, Vishakha Mahajan, Yun S Lee, Ann Smith, Julian R Marchesi, Deirdre Lyons, Phillip R Bennett, Maria Kyrgiou
Evidence suggests the vaginal microbiota (VM) may influence risk of persistent Human Papillomavirus (HPV) infection and cervical carcinogenesis. Established cytology biobanks, typically collected with a cytobrush, constitute a unique resource to study such associations longitudinally. It is plausible that compared to rayon swabs; the most commonly used sampling devices, cytobrushes may disrupt biofilms leading to variation in VM composition. Cervico-vaginal samples were collected with cytobrush and rayon swabs from 30 women with high-grade cervical precancer...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814070/hpv-genotype-specific-persistence-and-potential-risk-factors-among-korean-women-results-from-a-2-year-follow-up-study
#14
Cecile Ingabire, Min Kyung Lim, Young-Joo Won, Jin-Kyoung Oh
Purpose: High-risk human papilloma virus (HPV) infection progression should be considered a critical factor for preventing cervical cancer, although most infections are transient and rarely persist. This study aimed to examine the specific types of HPV infections, their change patterns, and the potential risk factors among Korean women. Materials and Methods: We included 4,588 women who visited hospitals in Busan and Suwon for cervical cancer screening, and 1,224 of these women attended a 2-year follow-up...
August 17, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28812825/evaluating-global-health-partnerships-a-case-study-of-a-gavi-hpv-vaccine-application-process-in-uganda
#15
Carol Kamya, Jessica Shearer, Gilbert Asiimwe, Emily Carnahan, Nicole Salisbury, Peter Waiswa, Jennifer Brinkerhoff, Dai Hozumi
BACKGROUND: Global health partnerships have grown rapidly in number and scope, yet there has been less emphasis on their evaluation. Gavi, the Vaccine Alliance, is one such public-private partnership; in Gavi-eligible countries partnerships are dynamic networks of immunization actors who work together to support all stages and aspects of Gavi support. This paper describes a conceptual framework - the partnership framework - and analytic approach for evaluating the perceptions of partnerships' added value as well as the results from an application to one case in Uganda...
October 26, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28797293/health-care-providers-perceptions-of-use-and-influence-of-clinical-decision-support-reminders-qualitative-study-following-a-randomized-trial-to-improve-hpv-vaccination-rates
#16
Brian E Dixon, Monica L Kasting, Shannon Wilson, Amit Kulkarni, Gregory D Zimet, Stephen M Downs
BACKGROUND: Human Papillomavirus (HPV) leads to serious health issues and remains the most common sexually transmitted infection. Despite availability of effective vaccines, HPV vaccination rates are suboptimal. Furthermore, providers recommend the HPV vaccine less than half the time for eligible patients. Prior informatics research has demonstrated the effectiveness of computer-based clinical decision support (CDS) in changing provider behavior, especially in the area of preventative services...
August 10, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28796684/maternal-and-infant-outcomes-after-human-papillomavirus-vaccination-in-the-periconceptional-period-or-during-pregnancy
#17
Heather S Lipkind, Gabriela Vazquez-Benitez, James D Nordin, Paul A Romitti, Allison L Naleway, Nicola P Klein, Rulin C Hechter, Michael L Jackson, Simon J Hambidge, Grace M Lee, Lakshmi Sukumaran, Elyse O Kharbanda
OBJECTIVE: To evaluate whether quadrivalent human papillomavirus vaccine (4vHPV) administered during the periconceptional period or during pregnancy was associated with increased risks for adverse obstetric events, adverse birth outcomes, or selected major structural birth defects. METHODS: We conducted a retrospective, observational cohort study using administrative and health care data from the Vaccine Safety Datalink. Insured women 13-27 years old with singleton pregnancies and a live birth from January 1, 2007, through September 1, 2013, who received 4vHPV during the periconceptional period (2 weeks before to 2 weeks after their last menstrual period), during pregnancy, or during both periods combined were compared with women who had a live birth during the same time period and received 4vHPV 4-18 months before their last menstrual period...
September 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28780192/a-novel-hpv-prophylactic-peptide-vaccine-designed-by-immunoinformatics-and-structural-vaccinology-approaches
#18
Manica Negahdaripour, Mahboobeh Eslami, Navid Nezafat, Nasim Hajighahramani, Mohammad Bagher Ghoshoon, Eskandar Shoolian, Ali Dehshahri, Nasrollah Erfani, Mohammad Hossein Morowvat, Younes Ghasemi
Human papillomavirus (HPV)-caused cervical cancer is the fourth common female cancer globally. Despite availability of three effective vaccines in market, development of HPV prophylactic vaccines is still pursued due to affordability issues and type-restricted protection of the marketed vaccines. Investigational second generation prophylactic HPV vaccines are mostly exploiting epitopes from the virus minor capsid protein (L2), which despite many advantages suffer from low immunogenicity, a common problem of epitope vaccines...
August 2, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28766319/acceptability-of-school-based-health-centers-for-human-papillomavirus-vaccination-visits-a-mixed-methods-study
#19
Caitlin E Hansen, Edirin Okoloko, Adedotun Ogunbajo, Anna North, Linda M Niccolai
BACKGROUND: Countries with high human papillomavirus (HPV) vaccination rates have achieved this success largely through school-based vaccination. Using school-based health centers (SBHCs) in the United States, where HPV vaccine remains underutilized, could improve uptake. In this mixed-methods study, we examined acceptability, facilitators, and barriers of HPV vaccination visits at SBHCs from the perspectives of adolescents and parents. METHODS: We conducted qualitative interviews and structured surveys with adolescents and parents recruited from an urban, hospital-based clinic...
September 2017: Journal of School Health
https://www.readbyqxmd.com/read/28750068/using-actor-partner-interdependence-modeling-to-understand-hpv-vaccine-acceptance
#20
Laura E VanderDrift, Peter A Vanable, Katherine E Bonafide, Jennifer L Brown, Rebecca A Bostwick, Michael P Carey
A wealth of scientific literature has been devoted to understanding what factors influence parents and their adolescent children to obtain the HPV vaccine. This literature is relatively uniform in its methodological approach of sampling individuals (i.e., either parents or adolescents) and examining the predictors of uptake for that individual. To improve understanding of HPV vaccination uptake, we sampled low-income, African American parent-child dyads with either a female (n = 93) or a male (n = 116) adolescent who had not been vaccinated...
2017: PloS One
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