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Oral premalignant

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https://www.readbyqxmd.com/read/29789538/salvanic-acid-b-inhibits-glycolysis-in-oral-squamous-cell-carcinoma-via-targeting-pi3k-akt-hif-1%C3%AE-signaling-pathway
#1
Jie Wei, Jun Wu, Wen Xu, Hong Nie, Ruiqing Zhou, Rui Wang, Yang Liu, Guoyao Tang, Jianyong Wu
Our previous study demonstrated a progressive glycolytic perturbation during the course of DMBA-induced hamster oral carcinogenesis, which was attenuated by salvianolic acid B (Sal-B) treatment along with decreased incidences of oral squamous cell carcinoma (OSCC) formation. It was proposed that metabolic modulation should be an additional mode of action attributable to Sal-B's anti-carcinogenic activity. However, the molecular mechanisms underlying Sal-B-induced metabolic modulation function remained elusive...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29763881/orally-administered-brown-seaweed-derived-%C3%AE-glucan-effectively-restrained-development-of-gastric-dysplasia-in-a4gnt-ko-mice-that-spontaneously-develop-gastric-adenocarcinoma
#2
Mark Joseph Desamero, Shigeru Kakuta, James Kenn Chambers, Kazuyuki Uchida, Satoshi Hachimura, Masaya Takamoto, Jun Nakayama, Hiroyuki Nakayama, Shigeru Kyuwa
β-Glucan refers to a heterogeneous group of chemically defined storage polysaccharides containing β-(1,3)-d-linked glucose polymers with branches connected by either β-(1,4) or β-(1,6) glycosidic linkage. To date, an extensive amount of scientific evidence supports their multifunctional biological activities, but their potential involvement in the progression of premalignant lesions remains to be clarified. A4gnt KO mice that lack α1,4-N-acetylglucosamine-capped O-glycans in gastric gland mucin are a unique animal model for gastric cancer because the mutant mice spontaneously develop gastric cancer through hyperplasia-dysplasia-adenocarcinoma sequence...
May 12, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29745265/determination-and-diagnostic-value-of-ca9-mrna-in-peripheral-blood-of-patients-with-oral-leukoplakia
#3
Manuel Torres López, Mario Pérez Sayáns, Cintia Chamorro Petronacci, Francisco Barros Angueira, Pilar Gándara Vila, Alejandro Lorenzo Pouso, Abel García García
BACKGROUND: Oral leukoplakia is one of the most common oral premalignant disorder. The classical evaluation through tissue biopsy is not always valid to evaluate the risk of malignization. MATERIAL AND METHODS: RT-qPCR was performed on 47 blood samples (21 patients with leukoplakia, 2 with oral squamous cell carcinoma (OSCC), and 24 healthy patients) and on 11 tissue samples (3 leukoplakia, 4 OSCC, and 4 samples of healthy tissue). RESULTS: There are significant differences in expression between the different groups (F = 4...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29731553/estimation-of-cortisol-levels-in-patients-with-premalignant-disorders-and-oral-squamous-cell-carcinoma
#4
Priyanka Sharma, Simarpreet Virk Sandhu, Rajat Bhandari, Indu Verma, Ramanpreet Kaur Bhullar, Rajbir Kaur Khangura
Introduction: Oral cancer has been a scourge on the human population that drastically affects the quality of life-causing chronic anxiety and depression leading to disturbance in hypothalamus pituitary axis reflected by cortisol hormone dysregulation. Stress hormones affect tumor progression at different levels such as initiation, tumor growth and metastasis. Cortisol dysregulation has been reported in other malignancies; however, a thorough review of English literature revealed only anecdotal studies investigating it in patients with oral squamous cell carcinoma (OSCC)...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29729031/risk-factors-of-cancer-occurrence-after-surgery-of-oral-intraepithelial-neoplasia-a-long-term-retrospective-study
#5
Stanislas Ballivet de Régloix, Nathalie Badois, Celine Bernardeschi, Thomas Jouffroy, Caroline Hofmann
OBJECTIVE: Oral intraepithelial neoplasia (OIN) is a premalignant lesion of oral mucosa graded I through III according to the importance of atypic cells and the thickness of the dysplastic layers. The aim of this study was to evaluate the long-term clinical course of OIN lesions and identify predictive factors of outcomes. METHODS: The clinical, surgical, and follow-up data of the patients consecutively treated for OIN by primary surgical removal in a referral anti-cancer center from November 1998 to March 2009 were retrospectively analyzed...
May 4, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29709496/molecular-markers-associated-with-development-and-progression-of-potentially-premalignant-oral-epithelial-lesions-current-knowledge-and-future-implications
#6
REVIEW
Nikolaos G Nikitakis, Monica Pentenero, Maria Georgaki, Catherine F Poh, Douglas E Peterson, Paul Edwards, Mark Lingen, John J Sauk
Identification and management of potentially premalignant oral epithelial lesions (PPOELs) at highest risk of malignant transformation holds great promise for successful secondary prevention of oral squamous cell carcinoma, potentially reducing oral cancer morbidity and mortality. However, to date, neither clinical nor histopathologic validated risk predictors that can reliably predict which PPOELs will definitively progress to malignancy have been identified. In addition, the management of PPOELs remains a major challenge...
April 4, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29699945/special-focus-issue-on-potentially-premalignant-oral-epithelial-lesions-introduction-and-perspective
#7
EDITORIAL
Nikolaos G Nikitakis
No abstract text is available yet for this article.
April 6, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29692512/a-neglected-reddish-penile-patch-a-wolf-in-sheep-s-clothing
#8
Pragatheeswarane Murugavaithianathan, Sudheer K Devana, Kim Vaiphei, Ravimohan Mavuduru, Girdhar S Bora
Microinvasive squamous cell carcinoma (SCC) is a known premalignant lesion of carcinoma cervix. It is also reported from other sites such as the oral cavity, larynx, and vulva. Microinvasive SCC is very rarely reported from the penis. We report the occurrence of microinvasive SCC in a long-standing erythematous lesion of glans penis in a patient, with extensive metastasis. We emphasize the need for awareness among patients and urologists about the premalignant lesions of penis and prompt treatment of such lesions to prevent possible spread of the disease...
April 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29685024/oral-lichen-planus
#9
L Giannetti, A M Dello Diago, E Spinas
Oral Lichen planus (OLP) is the most frequent mucosal localization of Lichen planus, affecting about 1-2% of the population. It is associated with skin lesions in 60-70% of cases, while occurring as the only manifestations in 15-25% of patients. Six clinical forms of OLP are identified: reticular (the most common), plaque, papular, atrophic, vesicles/bullous and erosive. The evolution is chronic, especially in the erosive form. A 1% incidence of squamous-cell carcinoma has been reported, thus considering OLP as a potential premalignant condition...
March 2018: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29665273/butylidenephthalide-abrogates-the-myofibroblasts-activation-and-mesenchymal-transdifferentiation-in-oral-submucous-fibrosis
#10
Tzu-Rong Su, Yi-Wen Liao, Pei-Ling Hsieh, Lo-Lin Tsai, Chih-Yuan Fang, Taichen Lin, Yu-Hsien Lee, Horng-Jyh Harn, Cheng-Chia Yu
Oral submucous fibrosis (OSF) is a premalignant disorder in the oral cavity, and areca nut chewing habit has been implicated in the persistent activation of myofibroblasts and the subsequent fibrosis. Therefore, it is critical to ameliorate the excessive activities of myofibroblasts prior to the malignant transformation of OSF. In the current study, we evaluated the cytotoxicity of butylidenephthalide (BP), a major phthalide ingredient of Angelica sinensis, in fibrotic buccal mucosal fibroblasts (fBMFs) as well as various myofibroblast hallmarks, including the phenotypical characteristics and fibrosis-related markers...
April 17, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29664967/role-of-il-23-signaling-in-the-progression-of-premalignant-oral-lesions-to-cancer
#11
Blaine Caughron, Yi Yang, M Rita I Young
Mice bearing carcinogen-induced premalignant oral lesions were previously shown to have a pro-inflammatory phenotype, which is replaced with an immune inhibitory phenotype as lesions progress to cancer. Since Th17 cells are prominent at the premalignant lesion state and their levels are supported by IL-23, studies used mice that were IL-23 receptor deficient (IL-23R KO) to determine the requirement for IL-23 signaling in the immunological and clinical status of mice with premalignant oral lesions. The results showed a dependence on IL-23 signaling for the pro-inflammatory state of mice with oral lesions as levels of IL-2, IFN-γ, IL-6, IL-17 and TNF-α were elevated in wildtype mice with premalignant oral lesions, but not in IL-23R KO mice...
2018: PloS One
https://www.readbyqxmd.com/read/29656948/management-update-of-potentially-premalignant-oral-epithelial-lesions
#12
REVIEW
Michael Awadallah, Matthew Idle, Ketan Patel, Deepak Kademani
The term oral potentially malignant disorders, proposed at the World Health Organization workshop in 2005, has now been renamed potentially premalignant oral epithelial lesions (PPOELs). It is important to differentiate among PPOELs, which is a broad term to define a wide variety of clinical lesions, and oral epithelial dysplasia, which should be reserved specifically for lesions with biopsy-proven foci of dysplasia. PPOELs encompass lesions that include leukoplakia, erythroplakia, erythroleukoplakia, lichen planus, and oral submucous fibrosis...
March 23, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29656214/study-of-virulence-factor-of-candida-species-in-oral-lesions-and-its-association-with-potentially-malignant-and-malignant-lesions
#13
Graciela Del Valle Castillo, Silvia López de Blanc, Claudia Elena Sotomayor, Ana Isabel Azcurra
OBJECTIVE: The aim of this study was to explore the association between malignant and premalignant lesions and the virulence factor profile of Candida spp. recovered from different oral lesions. DESIGN: Candida spp. isolated from malignant lesions (squamous cell carcinoma, OC, n = 25), atypical lichen planus (AL, n = 11), chronic candidiasis (CC, n = 25), and asymptomatic carriers (WI, n = 15, control strains.) Isolates were identified in chromogenic medium, colony morphology and biochemical tests...
February 19, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29624459/-introducing-modified-dakkak-and-bennett-grading-system-for-indian-food-in-oral-submucous-fibrosis-a-dharwad-study
#14
Chaithra Kalkur, Atul P Sattur, Kruthika S Guttal, Anusha R Lakshman
Oral submucous fibrosis (OSMF) is one of the "diseases of civilization" because of the large differences in prevalence among races, geographic areas, and individuals at different socioeconomic levels. It is a premalignant condition strongly associated with the habit of chewing areca nuts. This study is to compare the scoring system in relation to the burning sensation of mouth and dysphagia using the visual analog scale (VAS) and Dakkak and Bennett grading system for Indian food, respectively, in OSMF patients...
April 6, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29617836/met-receptor-tyrosine-kinase-and-chemoprevention-of-oral-cancer
#15
Pierre Saintigny, William N William, Jean-Philippe Foy, Vassiliki Papadimitrakopoulou, Wenhua Lang, Li Zhang, You Hong Fan, Lei Feng, Edward S Kim, Adel K El-Naggar, J Jack Lee, Li Mao, Waun Ki Hong, Mark W Lingen, Scott M Lippman
Background: We have previously shown that gene expression profiles of oral leukoplakia (OL) may improve the prediction of oral cancer (OC) risk. To identify new targets for prevention, we performed a systematic survey of transcripts associated with an increased risk of oral cancer and overexpressed in OC vs normal mucosa (NM). Methods: We used gene expression profiles of 86 patients with OL and available outcomes from a chemoprevention trial of OC and NM. MET expression was evaluated using immunohistochemistry in 120 OL patients, and its association with OC development was tested in multivariable analysis...
March 1, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29616906/diagnostic-pathway-of-oral-cavity-cancer-in-an-integrated-health-care-system
#16
Kevin H Wang, Brian H Song, Jason E Gilde, Jeanne A Darbinian, Miranda L Ritterman Weintraub, Tara J Wu, Eleanor L Yang, James W Salazar, Deepak Gurushanthaiah
CONTEXT: Survival for patients with oral cavity squamous cell carcinoma (OCSCC) has remained relatively stagnant despite advances in treatment. Few studies have examined why advanced-stage disease is diagnosed in 40% of patients with OCSCC nationally. OBJECTIVE: To characterize the diagnostic pathway of OCSCC in an integrated health care system. DESIGN: Retrospective study of patients with OCSCC (2007-2010). MAIN OUTCOME MEASURES: Referral patterns and demographic, clinical, and tumor characteristics associated with time to diagnosis (diagnostic interval)...
March 30, 2018: Permanente Journal
https://www.readbyqxmd.com/read/29601789/comparative-evaluation-of-healing-pattern-after-surgical-excision-of-oral-mucosal-lesions-by-using-platelet-rich-fibrin-prf-membrane-and-collagen-membrane-as-grafting-materials-a-randomized-clinical-trial
#17
Monica Mahajan, Mithilesh Kumar Gupta, Chandrashekhar Bande, Vikas Meshram
PURPOSE: To compare the healing potential of platelet-rich fibrin (PRF) and collagen membranes in oral mucosal healing. MATERIALS AND METHODS: Thirty patients with oral premalignant lesions were randomly included in the study and divided in groups A and B. After excising the lesions under local anesthesia, patients in groups A and B underwent grafting with the PRF membrane and the collagen membrane, respectively. Patients were evaluated at postoperative days 7, 15, 30, and 60 for pain, healing, and complications, such as recurrence, fibrosis, scar hypertrophy, and loss of vestibular depth...
March 8, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29588842/factors-associated-with-the-efficacy-of-polyp-detection-during-routine-flexible-sigmoidoscopy
#18
Akash J Maliampurakal, Donald C McMillan, John H Anderson, Paul G Horgan, David Mansouri
Objective: Flexible sigmoidoscopy reduces the incidence of colonic cancer through the detection and removal of premalignant adenomas. However, the efficacy of the procedure is variable. The aim of the present study was to examine factors associated with the efficacy of detecting polyps during flexible sigmoidoscopy. Design and patients: Retrospective observational cohort study of all individuals undergoing routine flexible sigmoidoscopy in NHS Greater Glasgow and Clyde from January 2013 to January 2016...
April 2018: Frontline Gastroenterology
https://www.readbyqxmd.com/read/29526386/systematic-alphanumeric-coded-endoscopy-versus-chromoendoscopy-for-the-detection-of-precancerous-gastric-lesions-and-early-gastric-cancer-in-subjects-at-average-risk-for-gastric-cancer
#19
A Pérez-Mendoza, Á M Zárate-Guzmán, E S Galvis García, S Sobrino Cossío, J Djamus Birch
INTRODUCTION AND AIMS: Gastric cancer is one of the main causes of cancer worldwide, but there is currently no global screening strategy for the disease. Endoscopy is the screening method of choice in some Asian countries, but no standardized technique has been recognized. Systematic alphanumeric-coded endoscopy can increase gastric lesion detection. The aim of the present article was to compare the usefulness of systematic alphanumeric-coded endoscopy with conventional endoscopy for the detection of premalignant lesions and early gastric cancer in subjects at average risk for gastric cancer...
April 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/29516925/expression-of-p53-epidermal-growth-factor-receptor-c-erbb2-in-oral-leukoplakias-and-oral-squamous-cell-carcinomas
#20
Swati Singla, Gaurav Singla, Sufian Zaheer, Dushyant Singh Rawat, Ashish Kumar Mandal
Background: Oral cancer is a leading cause of cancer in India and contributes to 12% deaths worldwide. The identification of high-risk oral premalignant lesions such as leukoplakia and intervention at premalignant stages could result in significant loss of mortality and morbidity among these patients. The most frequently observed genetic aberrations in these lesions are of mutations in p53, c-erbB2, and epidermal growth factor receptor (EGFR). No specific tumor markers have been identified consistently in oral leukoplakias and the available studies show wide variations in their expression...
January 2018: Journal of Cancer Research and Therapeutics
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