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https://www.readbyqxmd.com/read/28797449/nomogram-for-risk-prediction-of-malignant-transformation-in-oral-leukoplakia-patients-using-combined-biomarkers
#1
Xianglan Zhang, Ki-Yeol Kim, Zhenlong Zheng, Shadavlonjid Bazarsad, Jin Kim
OBJECTIVE: Squamous cell carcinomas (SCC) are the most common malignancies in the oral mucosa; these carcinomas have been preceded by potentially malignant oral disorders (PMODs), mostly oral leukoplakia (OL). No specific biomarker has been widely accepted for predicting the risk of malignant transformation of PMODs. The aim of this study was to develop an accurate prediction model for the malignant transformation of OL using clinical variables and candidate biomarkers. MATERIALS AND METHODS: To achieve this goal, 10 candidate biomarkers that had previously been reported as useful molecules were investigated: P53, Ki-67, P16, β-catenin, c-jun, c-met, insulin like growth factor II mRNA-binding protein (IMP-3), cyclooxygenase (COX-2), podoplanin (PDPN) and carbonic anhydrase 9 (CA9)...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28797444/straticyte-demonstrates-prognostic-value-over-oral-epithelial-dysplasia-grade-for-oral-potentially-malignant-lesion-assessment
#2
Jason T K Hwang, Ying R Gu, Benjamin J Dickson, Mi Shen, Ranju Ralhan, Paul G Walfish, David Mock, Kenneth P H Pritzker
OBJECTIVES: Straticyte™ was previously shown to be a more effective prognostic assessment than the current standard of care, histopathological dysplasia grading, to assess progression risk of oral epithelial dysplasia to invasive cancer [Hwang JT, Gu YR, Shen M, Ralhan R, Walfish PG, Pritzker KP, et al. Individualized five-year risk assessment for oral premalignant lesion progression to cancer. Oral Surg Oral Med Oral Pathol Oral Radiol. 2017;123:374-81]. In this follow-up study, our aim is to confirm the prognostic value of Straticyte using an independent cohort of oral biopsy cases previously assessed as epithelial dysplasia of various grades...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28793926/tobacco-and-alcohol-cessation-or-reduction-interventions-in-people-with-oral-dysplasia-and-head-and-neck-cancer-systematic-review-protocol
#3
Ellie Shingler, Luke A Robles, Rachel Perry, Chris Penfold, Andy Ness, Steve Thomas, J Athene Lane, Richard M Martin
BACKGROUND: Head and neck cancers include malignancies of the mouth, larynx and oropharynx. Tobacco use and alcohol consumption are associated with increased risks of developing and dying from head and neck cancer. The aim of this review is to examine the effectiveness of smoking and alcohol cessation interventions on disease-related outcomes, quality of life and behavioural change in adults with head and neck cancer and oral dysplasia. METHODS: The Cochrane library, CINAHL, Embase, MEDLINE, PsycINFO and Web of Science databases will be searched for randomised controlled trials investigating the effects of smoking or alcohol interventions on patients with either head and neck cancer or oral dysplasia...
August 10, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28743666/biological-significance-of-5-hydroxymethylcytosine-in-oral-epithelial-dysplasia-and-oral-squamous-cell-carcinoma
#4
Maria Carolina Cuevas-Nunez, Camilla Borges F Gomes, Sook-Bin Woo, Matthew R Ramsey, Xiaoxin L Chen, Shuyun Xu, Ting Xu, Qian Zhan, George F Murphy, Christine G Lian
OBJECTIVES: The aim of this study was to determine the levels of 5-hydroxylmethylcytosine (5-hmC) in oral epithelial dysplasia (OED) and oral squamous cell carcinoma (OSCC) compared with those in benign, reactive inflammatory lesions and to explore whether DNA hydroxymethylation may serve as a novel biomarker for early diagnosis and prognosis of OSCC. STUDY DESIGN: The study included normal mucosa from uninvolved margins of 9 fibromas, 10 oral lichen planus, 15 OED, and 23 OSCC...
June 16, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28732697/cytological-study-of-dna-content-and-nuclear-morphometric-analysis-for-aid-in-the-diagnosis-of-high-grade-dysplasia-within-oral-leukoplakia
#5
Xi Yang, Xuan Xiao, Wenyan Wu, Xuemin Shen, Zengtong Zhou, Wei Liu, Linjun Shi
OBJECTIVE: To quantitatively examine the DNA content and nuclear morphometric status of oral leukoplakia (OL) and investigate its association with the degree of dysplasia in a cytologic study. STUDY DESIGN: Oral cytobrush biopsy was carried out to obtain exfoliative epithelial cells from lesions before scalpel biopsy at the same location in a blinded series of 70 patients with OL. Analysis of nuclear morphometry and DNA content status using image cytometry was performed with oral smears stained with the Feulgen-thionin method...
July 18, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28727989/oral-papillomatosis-in-immunocompromised-patients-a-case-series-of-kidney-transplant-recipients-and-myelodysplastic-syndrome
#6
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/28705292/a-case-of-ischemia-induced-perianal-ulceration-mimicking-pyoderma-gangrenosum
#7
Michael Joseph Lavery, Nicola Cooke
A 68-year-old woman, with a 75-pack-year smoking history and a history of chronic excess alcohol intake, presented with a 5-week history of worsening perianal pain and ulceration. She recently had an inpatient admission with back pain and urinary tract infection during which she developed diarrhea and fecal incontinence. Initially, the perianal ulceration was diagnosed as severe irritant contact dermatitis and treated with barrier creams and topical clobetasone 17-butyrate 0.05% weight for weight, oxytetracycline 3...
2017: Skinmed
https://www.readbyqxmd.com/read/28680642/long-lasting-response-to-oral-therapy-in-a-young-male-with-monogenic-diabetes-as-part-of-hnf1b-related-disease
#8
Elena Carrillo, Amparo Lomas, Pedro J Pinés, Cristina Lamas
Mutations in hepatocyte nuclear factor 1β gene (HNF1B) are responsible for a multisystemic syndrome where monogenic diabetes (classically known as MODY 5) and renal anomalies, mostly cysts, are the most characteristic findings. Urogenital malformations, altered liver function tests, hypomagnesemia or hyperuricemia and gout are also part of the syndrome. Diabetes in these patients usually requires early insulinization. We present the case of a young non-obese male patient with a personal history of renal multicystic dysplasia and a debut of diabetes during adolescence with simple hyperglycemia, negative pancreatic autoimmunity and detectable C-peptide levels...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28679629/evaluation-of-ethyl-gallate-for-its-antioxidant-and-anticancer-property-against-chemical-induced-tongue-carcinogenesis-in-mice
#9
Shalini Mohan, Kalaivani Thiagarajan, Rajasekaran Chandrasekaran
Cancer raised in the oral cavity is one of the major causes of mortality worldwide and demand immediate attention. Regardless of the use of advanced treatment for oral cancer, successful treatment with cancer survival is less. Currently available drugs are though effective against cancer, treatment without toxic effects remains essential. This is quiet challenging leading to the identification of natural bioactive compounds for oral cancer treatment. Thus, a plant extract rich in phenolics was preferred to study the cellular, biochemical and molecular changes associated with oral carcinogenesis...
July 5, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28612463/meta-analysis-of-the-predictive-value-of-dna-aneuploidy-in-malignant-transformation-of-oral-potentially-malignant-disorders
#10
REVIEW
N A Alaizari, M Sperandio, E W Odell, D Peruzzo, S A Al-Maweri
DNA aneuploidy is an imbalance of chromosomal DNA content that has been highlighted as a predictor of biological behavior and risk of malignant transformation. To date, DNA aneuploidy in oral potentially malignant diseases (OPMD) has been shown to correlate strongly with severe dysplasia and high-risk lesions that appeared non-dysplastic can be identified by ploidy analysis. Nevertheless, the prognostic value of DNA aneuploidy in predicting malignant transformation of OPMD remains to be validated. The aim of this meta-analysis was to assess the role of DNA aneuploidy in predicting malignant transformation in OPMD...
June 14, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28603941/higher-expression-of-wnt5a-protein-in-oral-squamous-cell-carcinoma-compared-with-dysplasia-and-oral-mucosa-with-a-normal-appearance
#11
Zdenka Prgomet, Tommy Andersson, Pia Lindberg
WNT5A is a secreted signaling protein that promotes migration and invasion of oral squamous cell carcinoma (OSCC) cells through activation of non-canonical WNT signaling. Here, we examined expression of WNT5A, β-catenin, and E-cadherin by immunohistochemistry in 21 human diagnostic incision biopsies that each had regions of oral mucosa with a normal appearance adjacent to the affected tissue, dysplasia, and OSCC. We also investigated the effect of recombinant WNT5A (rWNT5A) on expression of the cell-adhesion proteins E-cadherin and β-catenin by western blot analysis...
August 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28585308/immunosurveillance-profile-of-oral-squamous-cell-carcinoma-and-oral-epithelial-dysplasia-through-dendritic-and-t-cell-analysis
#12
Ana Carolina Amorim Pellicioli, Lynne Bingle, Paula Farthing, Márcio Ajudarte Lopes, Manoela Domingues Martins, Pablo Agustin Vargas
Oral squamous cell carcinomas (OSCCs) can arise from potentially malignant disorders, such as leukoplakia. The immune system plays an important role recognizing tumour precursor cells. However, due to immuno-editing mechanisms cancer cells are able to escape immune system surveillance. OBJECTIVE: To evaluate the profile of dendritic (Langerhans and plasmacytoid) and T cells in OSCC and oral epithelial dysplasia (OED) and correlate these findings with clinical data. MATERIALS AND METHODS: Fifty cases of OSCC and 48 of OED were immunostained for CD1a and CD83 dendritic Langerhans cells (DLC), CD303 plasmacytoid dendritic cells (pDC) and CD8 followed by quantitative analysis...
June 5, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28543539/dna-damage-marker-%C3%AE-h2ax-is-a-potential-predictive-marker-for-progression-of-epithelial-dysplasia-of-the-oral-cavity
#13
E Y Leung, J D McMahon, D McLellan, N Syyed, C E McCarthy, C Nixon, C Orange, C Brock, K Hunter, P D Adams
AIMS: To evaluate the relationships between immunohistochemical markers related to cellular senescence, cell proliferation and histological grade of epithelial dysplasia of the oral cavity (OD). In addition, the predictive value of these markers for progression of OD was assessed. METHODS: Retrospective immunohistochemical analyses were performed on 86 formalin fixed and paraffin embedded specimens of OD and oral squamous cell carcinoma (OSCC) for Ki67, γH2AX, p53, p16, H3K9me3 and CycD1...
May 19, 2017: Histopathology
https://www.readbyqxmd.com/read/28502067/predictive-value-of-salivary-microrna-320a-vascular-endothelial-growth-factor-receptor-2-crp-and-il-6-in-oral-lichen-planus-progression
#14
Minoo Shahidi, Soudeh Jafari, Mahmood Barati, Masoumeh Mahdipour, Mohammad Saeed Gholami
INTRODUCTION: MicroRNA (miRNA) 320a and vascular endothelial growth factor receptor 2 (VEGFR-2) expression as the angiogenic biomarkers might be therapeutic targets in Oral lichen planus (OLP). IL-6 and C-reactive protein (CRP) could be prognostic in OLP, dysplastic OLP and Oral squamous cell carcinoma (OSCC). Therefore, their salivary detections as the noninvasive tools were aimed in this study. MATERIALS AND METHODS: Histopathologic examinations were carried out to distinguish the patients with dysplastic OLP and OSCC...
May 13, 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/28479681/immunolocalization-of-osteopontin-in-dysplasias-and-squamous-cell-carcinomas-arising-from-oral-epithelium
#15
Thara Aravind, Mahija Janardhanan, S Rakesh, Vindhya Savithri, U G Unnikrishnan
BACKGROUND: Early detection of oral squamous cell carcinoma (OSCC) remains one of the most efficient ways to ensure patient survival and improved quality of life. Although specific biomarkers related to OSCC have been investigated, a useful biomarker that assesses the transition potential of potentially malignant lesion to OSCC remains to be found. Osteopontin (OPN) has been recognized as an important factor in tumorigenesis and their expression in OSCC have been investigated earlier...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28419846/bit1-regulates-cell-migration-and-survival-in-oral-squamous-cell%C3%A2-carcinoma
#16
Yan Xiao, Yanjie Yang, Jing Wang, Wenlu Li
PURPOSE: Increasing evidence has shown that Bcl-2 inhibitor of transcription 1 (Bit1) involves a variety of biological processes in the process of tumor development and progression. We hypothesized that Bit1 would be overexpressed in oral squamous cell carcinoma (OSCC); therefore, we examined Bit1 gene expression and protein production, as well as explored the effect of elevated Bit1 levels on OSCC cells. MATERIALS AND METHODS: We investigated the use of quantitative real-time reverse transcription-polymerase chain reaction and immunohistochemistry analysis for Bit1 messenger RNA and protein levels...
March 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28404012/a-non-endoscopic-device-to-sample-the-oesophageal-microbiota-a-case-control-study
#17
Daffolyn R Fels Elliott, Alan W Walker, Maria O'Donovan, Julian Parkhill, Rebecca C Fitzgerald
BACKGROUND: The strongest risk factor for oesophageal adenocarcinoma is reflux disease, and the rising incidence of this coincides with the eradication of Helicobacter pylori, both of which might alter the oesophageal microbiota. We aimed to profile the microbiota at different stages of Barrett's carcinogenesis and investigate the Cytosponge as a minimally invasive tool for sampling the oesophageal microbiota. METHODS: In this case-control study, 16S rRNA gene amplicon sequencing was done on 210 oesophageal samples from 86 patients representing the Barrett's oesophagus progression sequence (normal squamous controls [n=20], non-dysplastic [n=24] and dysplastic Barrett's oesophagus [n=23], and oesophageal adenocarcinoma [n=19]), relevant negative controls, and replicates on the Illumina MiSeq platform...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28367031/surgical-management-of-chronic-hyperplastic-candidiasis-refractory-to-systemic-antifungal-treatment
#18
Neha Shah, Jay Gopal Ray, Sanchita Kundu, Divesh Sardana
Chronic hyperplastic candidiasis (CHC), earlier known as candidal leukoplakia, is a variant of oral candidiasis that classically presents as a white patch on the commissures of the oral mucosa and it is mostly caused by Candida albicans. Clinically, the lesions are usually asymptomatic and regress after appropriate antifungal therapy and correction of the underlying cause. If the lesions are untreated, a small portion may develop dysplasia and later progress into carcinoma. The purpose of this article is to report a case of CHC in a 57-year-old male patient with a significant smoking habit, who presented with a thick, nonscrapable, brownish-white coating on the dorsum of the tongue for 9 years...
April 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28274041/histomorphometric-analysis-of-angiogenesis-using-cd31-immunomarker-and-mast-cell-density-in-oral-premalignant-and-malignant-lesions-a-pilot-study
#19
M Jyothsna, M Rammanohar, Kiran Kumar
INTRODUCTION: Mast cells have been implicated in promoting angiogenesis in malignant tumors of lung, oesophagus and breast, but there are few studies on Oral Squamous Cell Carcinomas (OSCC). Most oral squamous cell carcinomas arise from pre-existing precancerous lesions exhibiting epithelial dysplasia. AIM: The present pilot study attempts to compare Mast Cell Density (MCD), Microvessel Density (MVD), Microvessel Area (MVA) histomorphometrically between normal buccal mucosa, severe epithelial dysplasia and OSCC and to correlate the role of mast cells and angiogenesis in tumor progression...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28116435/-expression-of-cytokeratin-19-in-the-development-and-progression-of-oral-squamous-cell-carcinoma
#20
Dan Tan, Chun-Hui Li, Min-Hai Nie
PURPOSE: To investigate the expression of cytokeratin 19 (CK19) in various stages of oral squamous cell carcinoma (OSCC), and to explore the relation between CK19 and OSCC. METHODS: Forty-nine specimens including normal oral mucosa, epithelial hyperplasia, epithelial dysplasia, and oral squamous carcinoma were investigated. The expression of CK19 was detected by immunohistochemistry and Western blot. The serum of OSCC patients and healthy people was collected and CYFRA21-1 level was determined by ELISA...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
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