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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28296246/assessment-of-oral-cytological-features-in-smokers-and-nonsmokers-after-application-of-toluidine-blue
#10
Majid Sharbatdaran, Hamid Abbaszadeh, Sepideh Siadati, Mohammad Ranaee, Karimollah Hajian-Tilaki, Mahdieh Rajabi-Moghaddam
INTRODUCTION: Smoking is the most important etiologic factor of oral cancer. Exfoliative cytology is the best method for early detection of oral cancer. Toluidine blue staining is used for detection of oral premalignant and malignant lesions. The aim of this study was to enhance the accuracy of oral exfoliative cytology in evaluating dysplastic features using toluidine blue staining. METHODS AND MATERIALS: This clinical trials study was performed on 60 male smokers and nonsmokers without clinically oral lesion...
March 10, 2017: Diagnostic Cytopathology
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
#11
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/28239573/role-of-buccal-pad-of-fat-in-reconstruction-of-the-buccal-mucosa-defects
#12
A Sagayaraj, N Divya Jyothi, S M Azeem Mohiyuddin, Ravindra P Deo, B Vageesh Padiyar
Carcinoma buccal mucosa is the most common oral cavity cancer in India. Following excision of these lesions the defects can be reconstructed using various reconstructive techniques. Buccal pad of fat has been successfully used in the reconstruction of small palatal defects and in the closure of the oro antral fistula. This study aims at evaluating the role of buccal pad of fat in reconstruction of defects following excision of the small to medium premalignant lesions and T1-T2 malignant lesions of buccal mucosa...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28225785/betel-nut-chewing-oral-premalignant-lesions-and-the-oral-microbiome
#13
Brenda Y Hernandez, Xuemei Zhu, Marc T Goodman, Robert Gatewood, Paul Mendiola, Katrina Quinata, Yvette C Paulino
Oral cancers are attributed to a number of causal agents including tobacco, alcohol, human papillomavirus (HPV), and areca (betel) nut. Although betel nut chewing has been established as an independent cause of oral cancer, the mechanisms of carcinogenesis are poorly understood. An investigation was undertaken to evaluate the influence of betel nut chewing on the oral microbiome and oral premalignant lesions. Study participants were recruited from a dental clinic in Guam. Structured interviews and oral examinations were performed...
2017: PloS One
https://www.readbyqxmd.com/read/28217539/analysis-of-plasma-lipid-peroxidation-and-antioxidant-enzymes-status-in-patients-of-oral-leukoplakia-a-case-control-study
#14
Kumar Chandan Srivastava, Deepti Shrivastava
AIMS AND OBJECTIVES: Imbalances between the oxidant-antioxidant status have been implicated in the pathogenesis of several diseases, including oral cancer. Mostly, all oral cancer lesions are preceded by a stage of premalignancy. The present study aims to evaluate lipid peroxidation and antioxidant status in the venous blood of patients with different clinicopathologic stages of leukoplakia. MATERIALS AND METHODS: A case control study was designed with the inclusion of 20 new cases of histopathologically proven leukoplakia of various clinical stages along with an equal number of positive and negative control individuals...
December 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28215546/analysis-of-human-serum-metabolome-for-potential-biomarkers-identification-of-erosive-oral-lichen-planus
#15
Xu-Yan Yang, Shuai-Nan Zhang, Xu-Zhao Li, Yu Wang, Xiao-Dong Yin
BACKGROUND: Oral lichen planus (OLP) is a chronic auto-inflammatory mucositis and potentially oral premalignant lesion. Erosive OLP patients display the higher canceration rate as compared to the patients with non-erosive OLP. Identification of the potential biomarkers associated with erosive OLP may help to investigate the disease pathogenesis and to improve clinical treatment. METHODS: Ultra-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry (UPLC-QTOF-MS) combined with pattern recognition approaches were integrated to acquire differentially expressed metabolites for the pathways analysis and elucidate mechanisms of disease...
February 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28209005/serum-iron-and-haemoglobin-estimation-in-oral-submucous-fibrosis-and-iron-deficiency-anaemia-a-diagnostic-approach
#16
Divya Bhardwaj, Ajit D Dinkar, Sujata K Satoskar, Sapna Raut Desai
INTRODUCTION: Oral Submucous Fibrosis (OSMF) is a premalignant condition with potential malignant behaviour characterized by juxta-epithelial fibrosis of the oral cavity. In the process of collagen synthesis, iron gets utilized, by the hydroxylation of proline and lysine, leading to decreased serum iron levels. The trace element like iron is receiving much attention in the detection of oral cancer and precancerous condition like OSMF as it was found to be significantly altered in these conditions...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28199027/investigating-the-level-of-salivary-endothelin-1-in-premalignant-and-malignant-lesions
#17
Tahereh Nosratzehi, Sirous Risbaf Fakour, Ebrahim Alijani, Maryam Salehi
PURPOSE: This study aimed to investigate the level of salivary endothelin-1 in premalignant and malignant lesions. MATERIALS AND METHODS: In this study, 75 cases were investigated of which 25 cases were healthy, 25 cases had oral lichen planus (OLP), and 25 cases had oral squamous cell carcinoma (OSCC). In order to collect the saliva samples, the unstimulated spitting was used. The samples were collected between 9 and 12 a.m. They were sent to the lab shortly after being collected and salivary endothelin-1 was recorded for each sample according to the instruction of factory by using enzyme-linked immunosorbent assay and optical density at a wavelength of 450 nm...
May 2017: Special Care in Dentistry
https://www.readbyqxmd.com/read/28198978/high-prevalence-of-human-papillomavirus-hpv-in-oral-mucosal-lesions-of-patients-at-the-ambulatory-of-oral-diagnosis-of-the-federal-university-of-sergipe-northeastern-brazil
#18
Mariana Goveia Melo Ribeiro, Larissa Doddi Marcolino, Bruna Ribeiro de Andrade Ramos, Elaine Alves Miranda, Cleverson Luciano Trento, Sona Jain, Ricardo Queiroz Gurgel, Márcia Guimarães da Silva, Silvio Santana Dolabella
Objective: The aim of this study was to evaluate the frequency of HPV infection and its genotypes in patients with oral lesions at the Ambulatory of Oral Diagnosis of the Federal University of Sergipe, Brazil. Material and Methods: We conducted a molecular study with 21 patients (15 females) aged from two to 83 years with clinically detectable oral lesions. Samples were collected through exfoliation of lesions and HPV-DNA was identified using MY09/11 and GP5+/6+ primers...
January 2017: Journal of Applied Oral Science: Revista FOB
https://www.readbyqxmd.com/read/28115253/gold-nanorods-reflectance-discriminate-benign-from-malignant-oral-lesions
#19
Abraham Hirshberg, Irit Allon, Ilya Novikov, Rinat Ankri, Ariel Ashkenazy, Dror Fixler
Nanoparticle-based contrast agents have been used as an imaging tool for selectively detecting cancerous processes. We aimed to evaluate the detection sensitivity of reflection measurements of gold nanorods (GNRs) bio-conjugated to anti-epidermal growth factor receptor (GNRs-EGFR) monoclonal antibodies in discriminating benign from premalignant and malignant human oral lesions. Tissue sections incubated with GNRs-EGFR and the reflectance spectrum was measured using hyperspectral microscopy. Reflectance intensity increased with the progression of the disease, lowest in the control group and increasing as the dysplastic changes increase (P<0...
January 20, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28110942/individualized-five-year-risk-assessment-for-oral-premalignant-lesion-progression-to-cancer
#20
Jason T K Hwang, Ying R Gu, Mi Shen, Ranju Ralhan, Paul G Walfish, Kenneth P H Pritzker, David Mock
OBJECTIVE: The standard of care for premalignant lesion risk assessment is dysplasia grading by histopathology. With significant overlap between dysplasia grades and high inter- and intraobserver variations, histopathology dysplasia grading alone is not a useful prognostic tool. Our aim is to investigate whether a method for quantitatively assessing S100A7, a prognostic biomarker, using image analysis can better predict clinical outcome in cases with oral dysplasia. STUDY DESIGN: Using the Visiopharm image analysis system, we analyzed a cohort of 150 oral biopsy samples to build and test Straticyte, a model for individualized assessment of the 5-year risk of progression of oral precancerous lesions to invasive squamous cell carcinomas...
March 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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