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Oral premalignant

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https://www.readbyqxmd.com/read/28612700/knowledge-gaps-in-oral-and-maxillofacial-surgery-a-systematic-mapping
#1
Marie Österberg, Anders Holmlund, Bo Sunzel, Sofia Tranæus, Svante Twetman, Bodil Lund
OBJECTIVES: The aim of this study was to evaluate available knowledge and identify knowledge gaps within the field of oral and maxillofacial surgery, by systematically collecting and evaluating systematic reviews. Twelve specific domains were selected: surgical removal of teeth, antibiotic and corticosteroid prophylaxis, orofacial infections, dental and facial trauma, orthognathic surgery, reconstructive surgery, benign tumors, cysts, premalignant lesions, oral complications of treatment of malignant tumors, hyperbaric oxygen therapy, temporomandibular joint surgery, cost effectiveness of different surgical treatments, and ethics...
January 2017: International Journal of Technology Assessment in Health Care
https://www.readbyqxmd.com/read/28580490/estimation-of-expression-of-oral-fluid-biomarkers-in-the-diagnosis-of-pretumor-diseases-of-oral-mucosa
#2
E V Kochurova, V N Nikolenko
Complex clinical, dental, and morphological investigation, and ELISA of levels of MMP-2, 8, 9, and TIMP-1 and 2 in the saliva was performed during primary examination of patients with premalignant lesions of maxillofacial area and practically healthy volunteers. Levels of all study MMP in the saliva significantly differed (p≤0.05) in patients with premalignant lesions and the control. These patients were also characterized by a significant (0.1≤p≤0.05) changes in TIMP concentrations (toward pathological pattern) comparing to the control...
June 3, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28574425/local-immune-responsiveness-of-mice-bearing-premalignant-oral-lesions-to-pd-1-antibody-treatment
#3
Corinne A Levingston, M Rita I Young
A carcinogen-induced premalignant oral lesion model that progresses to oral cancer was used to examine the immunological impact of a 5-week treatment regimen to block programmed cell death protein 1 (PD-1). PD-1 antibody treatment resulted in concurrent, but transient, increases in interleukin (IL)-2, IFN-γ and IL-17, and delayed increases in IL-6 and IL-10 within the lesion-bearing tongue epithelium. In contrast, cytokine secretion by lymph node cells of PD-1 antibody-treated mice was lower than for mice treated with control antibodies, with the exception of interferon (IFN)-γ, whose secretion increased late in the treatment period...
June 2, 2017: Cancers
https://www.readbyqxmd.com/read/28554768/caveolin-1-expression-in-oral-lichen-planus-dysplastic-lesions-and-squamous-cell-carcinoma
#4
Zohreh Jaafari-Ashkavandi, Ehsan Aslani
Caveolin-1(Cav-1), the main part of caveolae structure, is supposed to play a role in pathogenesis of many human tumors. Since oral lichen planus (OLP) is considered as a potential premalignant disease, this study evaluated Cav-1 expression in OLP in comparison with benign hyperkeratosis, dysplastic epithelium and oral squamous cell carcinoma (OSCC), to investigate its possible role in pathogenesis and malignant transformation of OLP. In this cross-sectional retrospective study, immunohistochemical expression of Cav-1 in the epithelial component and stroma was evaluated in 81 samples, including 12 cases of hyperkeratosis, 24 OLP, 22 epithelial dysplasia, and 23 OSCC samples...
March 9, 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
#5
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
https://www.readbyqxmd.com/read/28513913/determination-of-role-of-ceruloplasmin-in-oral-potentially-malignant-disorders-and-oral-malignancy-a-cross-sectional-study
#6
Palak H Shah, Rashmi Venkatesh, Chandramani B More
OBJECTIVES: In the process of carcinogenesis, lipid peroxidation and increased oxidative stress leads to changes in certain antioxidants. The present study was aimed to assess and co-relate serum levels of ceruloplasmin in oral premalignancies and oral cancer so as to gauge its possible association with the process of carcinogenesis and to determine its role as tumor marker. MATERIAL AND METHODS: The total of 300 participants, were equally divided in six study groups i...
May 17, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28511519/a-giant-cutaneous-horn-projecting-from-verrucous-carcinoma-of-buccal-mucosa-a-rare-case-report
#7
Priyankar Singh, Dipesh Nathani, Shashi Ranjan, Rashmi Issar
Cutaneous horn is conical shape of compact keratin that resembles a miniature animal horn. Though morphologically similar to horns in animals they are histologically very different from them. It is a circumscribed, conical, hyperkeratotic dense protrusion with epithelial cornification above the skin surface in response to a wide range of underlying benign and malignant pathological changes. Though benign, a cutaneous horn holds the potential to be premalignant or malignant. In India till now six cases has been reported with cutaneous horn at various unusual sites...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28487883/genetic-and-epigenetic-profiling-of-a-solitary-peutz-jeghers-colon-polyp
#8
Heinz Linhart, Felix Bormann, Barbara Hutter, Benedikt Brors, Frank Lyko
Colon polyps represent precursor lesions of colon cancers and their malignant potential varies according to histological subtype. A rare subtype of colon polyps is the Peutz-Jeghers (PJ) polyp. PJ polyps mostly occur in the context of Peutz-Jeghers syndrome, which is characterized by the development of multiple polyps in the intestinal tract and hyperpigmentation of oral mucosa and lips. Peutz-Jeghers is an autosomal dominant disorder caused by pathogenic variants of the serine threonine kinase STK11. PJ polyps very rarely occur outside of the syndrome and are then referred to as solitary PJ polyps...
May 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28479681/immunolocalization-of-osteopontin-in-dysplasias-and-squamous-cell-carcinomas-arising-from-oral-epithelium
#9
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/28477348/the-potential-role-of-in-vivo-optical-coherence-tomography-for-evaluating-oral-soft-tissue-a-systematic-review
#10
REVIEW
Enrica Gentile, Claudio Maio, Antonio Romano, Luigi Laino, Alberta Lucchese
BACKGROUND: The introduction of optical coherence tomography (OCT) in dentistry enabled the integration of already existing clinical and laboratory investigations in the study of the oral cavity. This systematic review presents an overview of the literature, to evaluate the usefulness of in vivo OCT for diagnosing oral soft tissues lesions, to compare the OCT results with traditional histology, and to identify limitations in prior studies so as to improve OCT applications. METHODS: We performed a review of the literature using different search engines (PubMed, ISI Web of Science, and the Cochrane Library) employing MeSH terms such as "optical coherence tomography" and "OCT" in conjunction with other terms...
May 6, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28471120/evaluation-of-efficacy-of-1-crystal-violet-nuclear-fast-red-stain-compared-to-haematoxyline-eosin-stain-for-assessing-mitotic-figures-in-oral-premalignant-and-malignant-lesions
#11
COMPARATIVE STUDY
Gauri Motiwale, Shradha Jaiswal, Ashok Vikey, Tejas Motiwale, Bhupesh Bagulkar, Atul Bhat, Prakhar Kapoor
Various chromosomal arrangements in cells undergoing division are referred to as Mitotic figure (MF). The abnormal excess of mitotic figures is commonly seen in oral epithelial dysplasia (ED) and oral squamous cell carcinoma (OSCC). In present study, we compared the number of mitotic figures in normal oral mucosa, epithelial dysplasia & OSCC sections with haematoxyline & eosine (H&E) and 1%Crystal Violet & Nuclear Fast Red (CV&NFR) stain, also the efficacy of the CV&NFR stain as compared to H & E stain. We investigated the correlation between the number of mitotic figures & grades of OSCC...
July 2016: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/28418939/exploring-the-molecular-pathogenesis-and-biomarkers-of-high-risk-oral-premalignant-lesions-on-the-basis-of-long-noncoding-rna-expression-profiling-by-serial-analysis-of-gene-expression
#12
Hongcheng Jia, Xuan Wang, Zheng Sun
Oral premalignant lesions (OPLs) have malignant transformation potential, with no reliable markers available. This study aimed to assess molecular events to identify biomarkers that can reflect high-risk lesions as predictive factors to tailor clinical decision for patients on the basis of long noncoding RNAs (lncRNA) expression profiling by serial analysis of gene expression. The GSE31021 and GSE8127 datasets were downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) and lncRNAs were identified using the LIMMA package in R language...
April 24, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28393818/genetic-changes-in-oral-premalignant-lesion-condition-and-oral-squamous-cell-carcinoma-a-study-based-on-inhibition-of-g2m-phase-by-colchicines
#13
Santosh Kanwar, Naresh Lingaraju, M S Mahesh, Srisha Basappa, Prathibha Rani
AIMS: To assess the percentage of cell arrested in G2M phase by colchicine in the early detection and prognosis of oral cancer, by comparison of oral squamous cell with leukoplakia and oral submucous fibrosis (OSMF) using flow cytometry analysis. MATERIALS AND METHODS: Biopsy samples 5 each of clinically diagnosed and histopathologically confirmed case of leukoplakia, OSMF, and squamous cell carcinoma (SCC) are included in the study. RESULTS: Colchicines significantly inhibited the growth of oral SCC-9 cell line by arresting G2M phase of the cell cycle (94...
January 2017: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28393367/increasing-popularity-of-waterpipe-tobacco-smoking-and-electronic-cigarette-use-implications-for-oral-healthcare
#14
REVIEW
C P Ramôa, T Eissenberg, S E Sahingur
Cigarette smoking increases the risk of developing several systemic conditions including cancer, cardiovascular and pulmonary diseases. Cigarette smoking is also detrimental to oral health as it increases the incidence and severity of oral cancer, periodontal diseases and peri-implantitis, as well as impacting negatively on the dental patients' response to therapy. Therefore, consideration of smoking behavior and recommendation of smoking cessation are important parts of dental treatment planning. However, cigarettes are no longer the most popular form of tobacco use among adolescents in the United States and globally...
April 10, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28388963/minimally-invasive-versus-open-distal-pancreatectomy-leopard-study-protocol-for-a-randomized-controlled-trial
#15
Thijs de Rooij, Jony van Hilst, Jantien A Vogel, Hjalmar C van Santvoort, Marieke T de Boer, Djamila Boerma, Peter B van den Boezem, Bert A Bonsing, Koop Bosscha, Peter-Paul Coene, Freek Daams, Ronald M van Dam, Marcel G Dijkgraaf, Casper H van Eijck, Sebastiaan Festen, Michael F Gerhards, Bas Groot Koerkamp, Jeroen Hagendoorn, Erwin van der Harst, Ignace H de Hingh, Cees H Dejong, Geert Kazemier, Joost Klaase, Ruben H de Kleine, Cornelis J van Laarhoven, Daan J Lips, Misha D Luyer, I Quintus Molenaar, Vincent B Nieuwenhuijs, Gijs A Patijn, Daphne Roos, Joris J Scheepers, George P van der Schelling, Pascal Steenvoorde, Rutger-Jan Swijnenburg, Jan H Wijsman, Moh'd Abu Hilal, Olivier R Busch, Marc G Besselink
BACKGROUND: Observational cohort studies have suggested that minimally invasive distal pancreatectomy (MIDP) is associated with better short-term outcomes compared with open distal pancreatectomy (ODP), such as less intraoperative blood loss, lower morbidity, shorter length of hospital stay, and reduced total costs. Confounding by indication has probably influenced these findings, given that case-matched studies failed to confirm the superiority of MIDP. This accentuates the need for multicenter randomized controlled trials, which are currently lacking...
April 8, 2017: Trials
https://www.readbyqxmd.com/read/28384973/estimation-of-serum-protein-in-oral-potentially-malignant-disorders-and-oral-malignancy-a-cross-sectional-study
#16
Chandramani B More, Palak H Shah, Rashmi Venkatesh
INTRODUCTION: In carcinogenesis, increased oxidative stress and weakened antioxidant defense produces damage to the macromolecules like proteins. Thus, protein can act as potential biomarker in oral premalignant and malignant lesions. AIM: To determine and compare the levels of serum proteins in Oral Submucuous Fibrosis (OSMF), Oral Leukoplakia (OL), Nicotina Stomatitis (NS), Oral Malignancy (OM) and Healthy Controls (HC). MATERIALS AND METHODS: A total of 250 participants, were equally divided in five groups i...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28383824/implication-for-second-primary-cancer-from-visible-oral-and-oropharyngeal-premalignant-lesions-in-betel-nut-chewing-related-oral-cancer
#17
Shyun-Yu Liu, I-Jung Feng, Yu-Wei Wu, Ching-Yuan Chen, Chao-Nan Hsiung, Hsueh-Wei Chang, Che-Yi Lin, Min-Te Chang, Hsi-Chien Yu, Sheng-Yang Lee, Ching-Yu Yen
BACKGROUND: Visible oral and oropharyngeal premalignant lesions may be used to monitor for a second primary oral cancer. To control for bias, we focused on the visible oral and oropharyngeal premalignant lesions of patients with oral cancer with a positive betel-nut chewing habit. Visible oral and oropharyngeal premalignant lesions that can predict second primary oral cancers were studied. METHODS: Nine hundred ninety-seven patients with positive betel-nut chewing habits and oral cancer were enrolled in this retrospective cohort study...
April 6, 2017: Head & Neck
https://www.readbyqxmd.com/read/28337885/role-of-diode-lasers-in-oro-facial-pain-management
#18
REVIEW
F Javed, S V Kellesarian, G E Romanos
With the increasing use of low level laser therapy (LLLT) in clinical dentistry, the aim of the present study was to assess the effectiveness of diode lasers in the management of orofacial pain. Indexed databases were searched without language and time restrictions up to and including July 2016 using different combinations of the following key words: oral, low level laser therapy, dental, pain, diode lasers, discomfort and analgesia. From the literature reviewed it is evident that LLLT is effective compared to traditional procedures in the management of oro-facial pain associated to soft tissue and hard tissue conditions such as premalignant lesions, gingival conditions and dental extractions...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28303010/comparison-of-orofacial-pain-of-patients-with-different-stages-of-precancer-and-oral-cancer
#19
Yanjie Yang, Peipei Zhang, Wenlu Li
Orofacial pain impairs a patient's speech, swallowing, eating and interpersonal relations. Thirty-seven patients with a premalignant oral lesion, 124 patients with oral squamous cell carcinoma (OSSC), and 21 patients with a recurrence of OSSC were evaluated for their orofacial pain. The University of California San Francisco Oral Cancer Pain Questionnaire was administered to these patients at their initial visit, before they were prescribed analgesics for pain and before any treatment. Significant differences with respect to orofacial pain between the groups could be evaluatedwere observed...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28296547/analysis-of-silver-binding-nucleolar-organizer-regions-in-exfoliative-cytology-smears-of-potentially-malignant-and-malignant-oral-lesions
#20
G V Sowmya, P Nahar, M Astekar, H Agarwal, M P Singh
Nucleolar organizer regions are nucleolar components that contain proteins that are stained selectively by silver methods; they can be identified as black dots throughout the nucleolus and are known as silver binding nucleolar organizer regions (AgNOR). The number of AgNOR is related to the cell cycle and the proliferative activity of the cells. We investigated AgNOR using exfoliative cytology smears of potentially malignant oral lesions. Eighty individuals were divided into four equal groups: healthy controls, oral leukoplakia, oral submucous fibrosis and oral squamous cell carcinoma...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
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