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https://www.readbyqxmd.com/read/28643363/oral-cancer-screening-practices-of-canadian-dental-hygienists
#1
A K Clarke, N Kobagi, M N Yoon
PURPOSE: This study investigates whether dental hygienists are routinely conducting oral cancer screenings (OCSs) as per their professional capability and responsibility. Factors that may mediate provision of OCSs, and ability to discuss sensitive topics with patients, are also examined. METHODS: A pretested online questionnaire was sent via national and provincial regulatory bodies to target practicing registered dental hygienists across Canada. Analysis was conducted using statistical software...
June 23, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/28639061/oral-and-oropharyngeal-papillomas-are-not-associated-with-high-risk-human-papillomavirus-infection
#2
Miroslaw Snietura, Roman Lamch, Agnieszka Kopec, Dariusz Waniczek, Wirginia Likus, Dariusz Lange, Jaroslaw Markowski
The role of different types of human papillomavirus (HPV) in the development of oral and oropharyngeal papillomas remains unclear. High-risk HPV (HR-HPV) was shown to be involved in the pathogenesis of significant proportion of squamous cell carcinomas of the oropharynx. In this study, we hypothesized that in some oropharyngeal papillomas, low-risk HPV (LR-HPV) and HR-HPV infection could co-exist, similar to what is observed in genital warts, and thus contribute to the elevated risk of malignancy. To test this hypothesis, we used real-time PCR to assess the presence of HPV DNA of 16 types (2 LR-HPV and 14 HR-HPV), in 75 formalin-fixed and paraffin-embedded histopathological samples of oral and oropharyngeal papillomas and in 57 squamous cell carcinomas from the same regions...
June 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28633362/human-papillomavirus-related-oropharyngeal-cancer
#3
M Taberna, M Mena, M A Pavón, L Alemany, M L Gillison, R Mesía
High-risk (HR) human papillomavirus (HPV) is now recognised as the principal cause of the increasing incidence rates of oropharyngeal squamous cell carcinoma (OPSCC) in some parts of the world.The primary risk factor for developing HPV-related OPSCC is oral HPV-infection and the majority of oral HPV-infections are acquired by oral sex. Progression into a OPSCC includes persistent infection with evasion of immune response in the microenvironment, the activation of viral early genes (E6, E7) in basal epithelial cells, the deregulation of cell cycle and the accumulation of chromosomal instability...
June 15, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28632936/peritumoral-cuffing-by-t-cell-tumor-infiltrating-lymphocytes-distinguishes-hpv-related-oropharyngeal-squamous-cell-carcinoma-from-oral-cavity-squamous-cell-carcinoma
#4
Kate Poropatich, David Hernandez, Joel Fontanarosa, Koshonna Brown, Gayle Woloschak, Ajit Paintal, Kirtee Raparia, Sandeep Samant
BACKGROUND: It is unclear why human papillomavirus (HPV)-related head and neck squamous cell carcinoma (HNSCC) has improved clinical behavior compared to HPV-negative HNSCC. We sought to better characterize the immune microenvironment of tongue cancers by examining the CD3 and CD8 TIL pattern in HPV-positive and -negative tumors. METHODS: Histologic sections from 40 oral tongue and oropharyngeal cases were analyzed (n= 21 HPV DNA-positive, n= 19 HPV DNA-negative)...
June 20, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28612284/detection-of-high-risk-human-papillomavirus-genotypes-16-and-18-in-head-and-neck-squamous-cell-carcinomas-in-jordan
#5
Luay Abu Qatouseh, Israr Sabri, Imad Alkhatib, Eiad Atwa, Tawfiq Arafat
Background: Recently, associations of the human papillomavirus (HPV) with head and neck cancer have become well established. Of particular concern, the severity and pathological outcomes of squamous cell carcinomas are remarkably affected by the genotypes of HPV present in such lesions. This study was conducted to investigate the occurrence of HPV genotypes, particularly high risk 16 and 18, among oral and laryngeal squamous cell carcinomas in Jordan. Methods: During the period of May 2015 to March 2016, we evaluated a total of 108 paraffin-embedded tissue samples, histologically confirmed as SCC, of both oral and laryngeal tumors for the presence of HPV DNA...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28611308/an-oral-keratinocyte-life-cycle-model-identifies-novel-host-genome-regulation-by-human-papillomavirus-16-relevant-to-hpv-positive-head-and-neck-cancer
#6
Michael R Evans, Claire D James, Oonagh Loughran, Tara J Nulton, Xu Wang, Molly L Bristol, Brad Windle, Iain M Morgan
Many aspects of the HPV life cycle have been characterized in cervical cell lines (W12, CIN612) and in HPV immortalized primary foreskin keratinocytes. There is now an epidemic of HPV positive oropharyngeal cancers (HPV16 is responsible for 80-90% of these); therefore increased understanding of the HPV16 life cycle in oral keratinocytes is a priority. To date there have been limited reports characterizing the HPV16 life cycle in oral keratinocytes. Using TERT immortalized "normal" oral keratinocytes (NOKs) we generated clonal cell lines maintaining the HPV16 genome as an episome, NOKs+HPV16...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28608917/elevated-risk-of-human-papillomavirus-related-second-cancers-in-survivors-of-anal-canal-cancer
#7
Rebecca A Nelson, Lily L Lai
BACKGROUND: Over the last decade, the causal link between human papillomavirus (HPV) infection and squamous cell carcinoma of the anus (SCCA) has been well described. Because HPV infection in one site is often associated with other sites of infection, it then follows that patients with SCCA may have an increased risk of additional HPV-related cancers. Identifying and targeting at-risk sites through cancer screening and surveillance may help to guide best practices. The current study sought to ascertain sites and risk of HPV-related second primary malignancies (SPMs) in survivors of SCCA...
June 13, 2017: Cancer
https://www.readbyqxmd.com/read/28608796/the-natural-history-of-oral-human-papillomavirus-in-young-costa-rican-women
#8
Daniel C Beachler, Krystle A Lang Kuhs, Linda Struijk, John Schussler, Rolando Herrero, Carolina Porras, Allan Hildesheim, Bernal Cortes, Joshua Sampson, Wim Quint, Paula Gonzalez, Aimée R Kreimer
BACKGROUND: Oral human papillomavirus (HPV) infection and related oropharyngeal cancer are uncommon in lower-income countries, particularly compared to HPV-associated cervical cancer. However, little is known about the natural history of oral HPV in less-developed settings and how it compares to the natural history of cervical HPV. METHODS: Three hundred fifty women aged 22 to 33 years from the Costa Rica Vaccine Trial provided exfoliated cells from the cervical and oral regions at 2 visits 2 years apart...
July 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28604561/breast-milk-is-a-potential-vehicle-for-human-papillomavirus-transmission-to-oral-mucosa-of-the-spouse
#9
Karolina Louvanto, Marja Sarkola, Marjut Rintala, Kari Syrjänen, Seija Grenman, Stina Syrjänen
BACKGROUND: Human papillomavirus (HPV) DNA has been detected in breast milk, but its origin has remained obscure. The aim of the study was to analyze the prevalence and persistence of HPV in breast milk in the Finnish Family HPV cohort study. The association of breast milk HPV positivity with the family members' oral HPV status was evaluated. METHODS: We included 308 families to the study where the mother was breast feeding her offspring. Mothers collected the milk samples manually at day 3, and at months 2, 6 and 12...
July 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28595454/predictors-of-adults-knowledge-and-awareness-of-hpv-hpv-associated-cancers-and-the-hpv-vaccine-implications-for-health-education
#10
Kimberly R McBride, Shipra Singh
High human papillomavirus (HPV) prevalence and low HPV vaccine uptake are significant public health concerns. Disparities in HPV-associated cancers and HPV vaccine uptake rates suggest the need for additional research examining factors associated with vaccine acceptance. This study assessed HPV awareness and knowledge and identified sociodemographic characteristics associated with HPV knowledge at the population level. Data from adult men ( n = 1,197) and women ( n = 1,906) who participated in the National Cancer Institute's 2014 Health Information National Trends Survey were analyzed...
June 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28584747/expression-of-human-papillomavirus-dna-and-p53-polymorphisms-through-polymerase-chain-reaction-in-normal-mucosa-and-oral-leukoplakia-individuals-with-deleterious-oral-habits
#11
Atmakuri Shanmukha Ramya, Sumit Majumdar, T Mahesh Babu, Divya Uppala, Baratam Srinivas, Ayyagari Kameswara Rao
CONTEXT: Oral leukoplakia (OL) is a well-recognized precancerous lesion with various etiological factors. Most commonly deleterious oral habits such as tobacco smoking and viral etiologies mainly human papillomavirus (HPV) play an important role. p53 polymorphisms mostly homozygous Arginine (Arg) allele has a greater risk of degradation by HPV. Hence, HPV infection and p53 polymorphisms may act as synergistic factors for increased the risk of malignant transformation in oral precancerous lesions...
April 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28578370/uncommon-oral-manifestation-of-lichen-sclerosus-critical-analysis-of-cases-reported-from-1957-to-2016
#12
S Tomo, I-S Santos, S-A de Queiroz, D-G Bernabé, L-E Simonato, G-I Miyahara
BACKGROUND: Lichen sclerosus is a mucocutaneous autoimmune disease which might be initiated by infectious pathogens as Borrelia Bugrdorferi and HPV. This disease shows destructive potential and is rarely diagnosed in oral mucosa. The purpose of this paper is to evaluate the characteristics of cases described in literature from 1957 to 2016, looking to provide valuable evidence about clinicopathologic features of this disease. MATERIAL AND METHODS: A MedLine search was performed aiming to find oral lichen sclerosus cases in literature and discuss its demographical and pathological characteristics as well as treatment methods performed for these cases...
June 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28565927/human-papilloma-virus-associated-lips-verrucous-carcinoma-in-hiv-infected-male
#13
Giuseppe Vittorio De Socio, Olena Bidovanets, Gian Marco Tomassini, Luca Fanelli, Stefano Simonetti
Human papillomavirus (HPV) infection, widely known as the necessary cause of cervical cancer, has been established as a major etiologic factor for head and neck cancer (HNC). HIV-infected individuals are at higher risk of HPV-associated cancers than the general population. We describe a 45-year-old man with HIV and HPV coinfection, who presented progressively enlarging verrucous neoformations of the lips. The final diagnosis of verrucous carcinoma was delayed. Early detection of HPV lesions in oral mucosa and HPV screening activities could be important in improving the diagnostic sensitivity for the HIV-infected patients with oral cancer...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/28559021/human-papillomavirus-genotypes-and-risk-of-head-and-neck-cancers-results-from-the-hence-life-case-control-study
#14
Claudie Laprise, Sreenath Arekunnath Madathil, Nicolas F Schlecht, Geneviève Castonguay, Denis Soulières, Phuc Felix Nguyen-Tan, Paul Allison, François Coutlée, Michael Hier, Marie-Claude Rousseau, Eduardo L Franco, Belinda Nicolau
OBJECTIVE: Human papillomaviruses (HPV) are changing dramatically the epidemiologic landscape of head and neck cancers (HNCs). Their role in the aetiology of these cancers varies widely among HNCs subsites, sex and geographical regions worldwide. We describe HPV prevalence and its association with HNCs risk overall and by anatomical subsite in a sample of Canadians. MATERIALS AND METHODS: The HeNCe Life study recruited 460 incident HNCs cases and 458 controls frequency-matched by age and sex from four Montreal hospitals in 2005-2013...
June 2017: Oral Oncology
https://www.readbyqxmd.com/read/28559012/establishment-and-characterization-of-an-oral-tongue-squamous-cell-carcinoma-cell-line-from-a-never-smoking-patient
#15
Steven J Wang, Saurabh Asthana, Annemieke van Zante, Chase M Heaton, Janyaporn Phuchareon, Leighton Stein, Saito Higuchi, Tomoya Kishimoto, Charles Y Chiu, Adam B Olshen, Frank McCormick, Osamu Tetsu
OBJECTIVE: The rising incidence of oral tongue squamous cell carcinoma (OTSCC) in patients who have never smoked and the paucity of knowledge of its biological behavior prompted us to develop a new cell line originating from a never-smoker. MATERIALS AND METHODS: Fresh tumor tissue of keratinizing OTSCC was collected from a 44-year-old woman who had never smoked. Serum-free media with a low calcium concentration were used in cell culture, and a multifaceted approach was taken to verify and characterize the cell line, designated UCSF-OT-1109...
June 2017: Oral Oncology
https://www.readbyqxmd.com/read/28557276/evolving-trends-in-head-and-neck-cancer-epidemiology-ontario-canada-1993-2010
#16
Matthew Mifsud, Antoine Eskander, Jonathan Irish, Patrick Gullane, Ralph Gilbert, Dale Brown, John R de Almeida, David R Urbach, David P Goldstein
BACKGROUND: Given the dramatic changes in global head and neck cancer epidemiology, the purpose of this study was to present the findings of our investigation on patterns of head and neck cancer incidence/survival within the province of Ontario, Canada. METHODS: Temporal variations in age/sex adjusted incidence and survival were analyzed for all incident head and neck cancer cases (n = 20 781) managed within Ontario from 1993-2010. RESULTS: From 1993-2010, the incidence of oropharyngeal (average annual percentage change [AAPC] 4...
May 30, 2017: Head & Neck
https://www.readbyqxmd.com/read/28557197/impaired-immune-function-in-children-and-adults-with-fanconi-anemia
#17
Kasiani C Myers, Sharon Sauter, Xue Zhang, Jacob J Bleesing, Stella M Davies, Susanne I Wells, Parinda A Mehta, Ashish Kumar, Daniel Marmer, Rebecca Marsh, Darron Brown, Melinda Butsch Kovacic
BACKGROUND: Fanconi anemia (FA) is a rare genetic disorder characterized by genome instability, bone marrow failure, and cancer predisposition. Previously, small studies have reported heterogeneous immune dysfunction in FA. PROCEDURE: We performed a detailed immunologic assessment in a large FA cohort who have not undergone bone marrow transplantation or developed malignancies. Comprehensive quantitative and functional immunologic assessment of 29 FA individuals was compared to healthy age-matched controls...
May 30, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28555375/overview-of-the-8th-edition-tnm-classification-for-head-and-neck-cancer
#18
REVIEW
Shao Hui Huang, Brian O'Sullivan
The main purpose of the TNM system is to provide an anatomic-based classification to adequately depict cancer prognosis. Accurate cancer staging is important for treatment selection and outcome prediction, research design, and cancer control activities. To maintain clinical relevance, periodical updates to TNM are necessary. The recently published 8th edition TNM classification institutes the following changes to the staging of head and neck (excluding thyroid cancer): new stage classifications [HPV-related oropharyngeal cancer (HPV+ OPC) and soft tissue sarcoma of the head and neck (HN-STS)] and modification of T and N categories [T and N categories for nasopharyngeal cancer (NPC), T categories for oral cavity squamous cell carcinomas (OSCC), N categories for non-viral related head and neck cancer and unknown primary (CUP), and T categories for head and neck cutaneous carcinoma]...
July 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28554767/plasma-hpv-dna-is-detectable-in-oral-leukoplakia-patients
#19
Lígia Lavezo Ferreira, Éder Ricardo Biasoli, Daniel Galera Bernabé, Cáris Maroni Nunes, Glauco Issamu Miyahara
BACKGROUND: Oral leukoplakia is considered a potentially malignant lesion for the development of squamous cell carcinoma, and various risk factors may be related to its development and malignant transformation, including the human papillomavirus (HPV). The aim of this case-control study was to detect the presence of HPV in fresh tissue, plasma and saliva samples obtained from patients with and without oral leukoplakia, and verify the correlation of the presence of DNA of HPV between different sources of materials...
April 20, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28551628/regulation-of-mirna-146a-and-mirna-150-levels-by-celecoxib-in-premalignant-lesions-of-k14-hpv16-mice
#20
Rui M Gil DA Costa, Rita Araújo, Joana M O Santos, Mara Fernandes, Tiago Neto, Hugo Sousa, Joana Ribeiro, Margarida M S M Bastos, Paula A Oliveira, Diogo Carmo, Fátima Casaca, Sandra Silva, Carlos Lopes, Rui Medeiros
BACKGROUND/AIM: Human papillomavirus type 16 (HPV16) induces various types of cancer in several locations. Microenvironmental microRNAs (miRNAs) such as miRNA-146a and miRNA-150 regulate cancer-associated inflammation and are involved in HPV-induced carcinogenesis. We studied the effects of celecoxib on the expression of these two miRNAs in HPV16-induced lesions. MATERIALS AND METHODS: Female transgenic (HPV16(+/-)) and wild-type (HPV16(-/-)) mice were administered 75 mg/kg/day celecoxib orally (treatment groups) or placebo (control groups) for four weeks...
June 2017: Anticancer Research
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