Human papilloma virus genotypes in dysplasia and epithelial hyperplasia of oral cavity using the luminex xmap technology. A multicenter study.

CONCLUSIONS: HPV-.HRs are frequently found in hyperplastic and dysplastic epithelial lesions. HPV-HRs and HPV-16 were associated with dysplasia in urban population. Rural high risk population and urban population differ in the frequency and variety of HPV genotypes. PMID: 31880291 [PubMed - as supplied by publisher]
Source: Medicina Oral, Patologia Oral y Cirugia Bucal - Category: ENT & OMF Tags: Med Oral Patol Oral Cir Bucal Source Type: research

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Publication date: April 2020Source: Phytochemistry Letters, Volume 36Author(s): Fahd M. Abdelkarem, Ezz-Eldin K. Desoky, Alaa M. Nafady, Ahmed E. Allam, Aldoushy Mahdy, Maki Nagata, Tomofumi Miyamoto, Kuniyoshi ShimizuAbstractFurther chemical study of the crude extract of the soft coral Heteroxenia fuscescens (Fam., Xeniidea), led to isolation of two new sterols, Heterofuscesterols A (1) and B (2), a sterol isolated for the first time from natural sources, 3β,5α,6β-trihydroxyandrosta-17-one (3), along with one new hydroperoxy sesquiterpene, Heterofusceterpene A (4), and one known ceramide (5). Their structu...
Source: Phytochemistry Letters - Category: Chemistry Source Type: research
Publication date: Available online 21 February 2020Source: Chemical Engineering JournalAuthor(s): Meitong Ou, Chao Pan, Yongkang Yu, Xuan Wang, Yun Zhou, Hanjie Zhang, Qinzhen Cheng, Meiying Wu, Xiaoyuan Ji, Lin MeiAbstractExcessive reactive oxygen species (ROS), as effective cancer therapeutic agents, can promote tumor apoptosis. However, the clinical applications of ROS-mediated cancer therapies still have many limitations, such as self-defects of traditional photosensitizer, adverse tumor microenvironment (TME), and insufficient ROS production. Here, two-dimensional and highly oxidized ilmenite nanosheets (HOIL NSs, for...
Source: Chemical Engineering Journal - Category: Chemistry Source Type: research
Publication date: Available online 21 February 2020Source: Chemical Engineering JournalAuthor(s): Yang Zhang, Yanjun Xu, Di Sun, Zheying Meng, Weiwei Ying, Wei Gao, Rui Hou, Yuanyi Zheng, Xiaojun Cai, Bing Hu, Xianfang LinAbstractAs a promising treatment modality with spatial and temporal control, alternating magnetic field (AMF) triggered magnetic hyperthermal therapy (MHT) shows broad and promising applications to overcome the drawbacks of traditional focal therapies in combating cancer. However, the MHT efficacy is still not satisfactory with the presence of heat shock proteins (HSPs). In addition, sustained tumor hypox...
Source: Chemical Engineering Journal - Category: Chemistry Source Type: research
Publication date: July 2019Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, Volume 128, Issue 1Author(s): Dr. Vimi Mutalik, Dr. Kristin McNamara, Dr. John Draper, Dr. John KalmarObjectiveExpression of the protein marker p 16INK4a is used as a surrogate for human papillomavirus (HPV) infection in biopsies of oral and tonsillar mucosa. While HPV infection accounts for
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
Santosh K. Ghosh1*, Thomas S. McCormick1,2 and Aaron Weinberg1* 1Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States 2Dermatology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States Human beta-defensins (hBDs, −1, 2, 3) are a family of epithelial cell derived antimicrobial peptides (AMPs) that protect mucosal membranes from microbial challenges. In addition to their antimicrobial activities, they possess other functions; e.g., cell activation, proliferation, regulation of cytokine/chemokine production, migration, diffe...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
Conclusion Most head and neck pathologies show a broad cellular heterogeneity making it difficult to achieve an accurate diagnosis and efficient treatment (Graf and Zavodszky, 2017; Lo Nigro et al., 2017). Single cell analysis of circadian omics (Lande-Diner et al., 2015; Abraham et al., 2018), may be a crucial tool needed in the future to fully understand the circadian control of head and neck diseases. It becomes more obvious that there is only a small genetic component but a largely unknown epigenetics and/or environmental component for most of the head and neck pathologies (Moosavi and Motevalizadeh Ardekani, 2016; He...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
In conclusion, we describe the genetic and epidemiological traits of several novel APVs discovered in six different bird species, some of which were not previously known to harbor PVs. We demonstrate that the genome organization of all currently known APVs is very similar and that there is some synteny in the phylogenetic relationships of APVs and their avian hosts, with evidence for virus–host co-divergence. Cross-species transmission events seem to occur between genetically closely related hosts and our findings show how host behavior can affect viral ecology and evolution. Ethics Statement This study was carried...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Abstract Human papillomavirus (HPV) is well recognized as a causative agent for anogenital and oropharyngeal cancers, however, the biology of HPV infection at different mucosal locations, specifically the oral cavity, is not well understood. Importantly, it has yet to be determined if oral tissues are permissive for HPV infection and replication. We investigated for the first time the titers, infectivity, and maturation of HPV16 in oral epithelial versus genital epithelial tissue. We show that infectious HPV16 virions can be produced in oral tissue. This demonstrates, for the first time, that infectious virus coul...
Source: Virology - Category: Virology Authors: Tags: Virology Source Type: research
Abstract Epstein-Barr virus and human papillomaviruses are human tumor viruses that infect and replicate in upper aerodigestive tract epithelia and cause head and neck cancers. The productive phases of both viruses are tied to stratified epithelia highlighting the possibility that these viruses may affect each other's life cycles. Our lab has established an in vitro model system to test the effects of EBV and HPV co-infection in stratified squamous oral epithelial cells. Our results indicate that HPV increases maintenance of the EBV genome in the co-infected cells and promotes lytic reactivation of EBV in upper la...
Source: Virology - Category: Virology Authors: Tags: Virology Source Type: research
Head and neck cancer (HNC) is the eighth most common cancer worldwide [1], arising in the epithelial lining of the oral cavity, pharynx, and larynx. Lifestyle risk factors include tobacco and alcohol consumption, although human papillomavirus (HPV) infection has recently emerged as a contributing factor, especially at the oropharynx [2,3]. Although early-stage cancers have a favorable prognosis, there are no reliable methods for the early detection of HNC. Over half of all HNCs present with advanced disease, highlighting the need for studies to investigate molecular biomarkers indicative of HNC risk.
Source: Oral Oncology - Category: Cancer & Oncology Authors: Source Type: research
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