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Oral premalignant

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https://www.readbyqxmd.com/read/28071621/assessment-of-the-sociodemographic-characteristics-and-efficacy-of-screening-for-oral-head-and-neck-potential-malignant-lesions-in-apparently-healthy-adults-in-jos-nigeria
#1
A A Adoga, O A Silas, J P Yaro, E T Okwori, A A Iduh, C J Mgbachi
BACKGROUND: The efficacy of screening for oral, head and neck cancers (HNCs) in adequately identifying high-risk groups is controversial. OBJECTIVES: This study aims to review our experience with a free oral, HNC-screening program to determine the sociodemographic characteristics of the participants and the effectiveness of this program to improve future programs. MATERIALS AND METHODS: A prospective cross-sectional survey of participants in a free oral, HNC screening exercise was performed in the years 2009, 2012, and 2013...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28060366/oral-lichenoid-lesions-distinguishing-the-benign-from-the-deadly
#2
Susan Müller
Oral lichen planus is a chronic inflammatory disease of unknown etiology or pathogenesis with varied disease severity that waxes and wanes over a long period of time. Although a common oral mucosal disease, accurate diagnosis is often challenging due to the overlapping clinical and histopathological features of oral lichen planus and other mucosal diseases. Other immune-mediated mucocutaneous diseases can exhibit lichenoid features including mucous membrane pemphigoid, chronic graft-versus-host disease, and discoid lupus erythematosus...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28055109/population-based-screening-program-for-reducing-oral-cancer-mortality-in-2-334-299-taiwanese-cigarette-smokers-and-or-betel-quid-chewers
#3
Shu-Lin Chuang, William Wang-Yu Su, Sam Li-Sheng Chen, Amy Ming-Fang Yen, Cheng-Ping Wang, Jean Ching-Yuan Fann, Sherry Yueh-Hsia Chiu, Yi-Chia Lee, Han-Mo Chiu, Dun-Cheng Chang, Yann-Yuh Jou, Chien-Yuan Wu, Hsiu-Hsi Chen, Mu-Kuan Chen, Shu-Ti Chiou
BACKGROUND: To reduce oral cancer mortality, an organized, population-based screening program for the early detection of oral premalignancy and oral cancer was designed for high-risk individuals with habits of betel quid chewing, cigarette smoking, or both. The objective of this report was to evaluate the long-term effectiveness of this program in reducing the incidence of advanced disease and deaths from oral cancer. METHODS: A nationwide, population-based screening program for oral cancer has been conducted in Taiwan since 2004...
January 5, 2017: Cancer
https://www.readbyqxmd.com/read/28027413/omega-3-a-novel-treatment-agent-in-oral-submucous-fibrosis-a-pilot-study
#4
Milanjeet Kaur Raizada, Digamber M Sable, Asha Chowdhery, Mahesh Shivaji Chavan, Ladu Singh Rajpurohit
BACKGROUND: Oral submucous fibrosis (OSF) is a chronic debilitating disease and a premalignant condition of the oral cavity. It is well known for its impervious nature to medical therapy. Omega 3 polyunsaturated fatty acids have been reported to have anti inflammatory properties. However, its role in OSF is still not known. This preliminary study assessed the efficacy of systemic omega 3 in this disease. METHODS: A randomized single blinded controlled trial was designed and a total of 10 clinically confirmed adult patients of OSF were included in the study...
December 27, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27994410/estimation-of-salivary-sialic-acid-in-oral-premalignancy-and-oral-squamous-cell-carcinoma
#5
Vishakha Chaudhari, G L Pradeep, Nilima Prakash, Aarti M Mahajan
AIMS: Oral cancer is the most life-threatening disease of oral tissues. In societies where the incidence of oral cancer is high, clinically recognizable premalignant lesions are particularly common. Diagnosing oral cancers at an early stage is critical in improving the survival rate and reducing the morbidity associated with the disease. Alterations in the sialic acid levels in cancer patients have stimulated interest in this sugar residue as a possible tumor marker. SETTINGS AND DESIGN: The purpose of this study was to estimate the salivary sialic acid levels in patients with oral premalignancy and squamous cell carcinoma and to correlate it with their grades to develop a cost-effective and noninvasive diagnostic parameter...
October 2016: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/27984435/tissue-fluorescence-imaging-velscope-for-quick-non-invasive-diagnosis-in-oral-pathology
#6
Marco Cicciù, Alan Scott Herford, Gabriele Cervino, Giuseppe Troiano, Floriana Lauritano, Luigi Laino
Oral squamous cell carcinoma is the most common form of malignancy of the oral cavity; its incidence is increasing and late-stage presentation is common. It is usually predated by oral premalignant disorders. For this reason, early diagnosis is fundamental to reduce the malignant transformation of oral premalignant disorders and for increase the survival rate for oral cancer. Scraping the surface of the lesion is useful for having cytological features of the investigated tissue. The features of smears of oral premalignant lesions are the keratinization growth (red, orange, brown), the increased nuclear area and so the nuclear hyperchromatism, the nuclear pleomorphism, and the chromatin clumping...
December 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27924796/detection-and-phylogenetic-analysis-of-torque-teno-virus-in-salivary-and-tumor-biopsy-samples-from-head-and-neck-carcinoma-patients
#7
Andrea Hettmann, Anett Demcsák, Ádám Bach, Gábor Decsi, Ágnes Dencs, Dóra Pálinkó, László Rovó, Katalin Nagy, Janos Minarovits, Mária Takács
OBJECTIVES: Because torque teno virus (TTV) has been implicated in tumorigenesis as a cocarcinogen, we studied TTV prevalence in saliva and biopsy samples from head and neck cancer (HNCC) patients, patients with premalignant lesions of oral cancer, and controls. We also wished to determine the TTV genotypes in HNCC patients. METHODS: A seminested polymerase chain reaction (PCR) amplifying the N22 region of the TTV genome, as well as direct sequencing of PCR fragments, was used...
2016: Intervirology
https://www.readbyqxmd.com/read/27914100/transient-immunological-and-clinical-effectiveness-of-treating-mice-bearing-premalignant-oral-lesions-with-pd-1-antibodies
#8
Corinne A Levingston, M Rita I Young
A carcinogen-induced premalignant oral lesion model that progresses to oral cancer was used to examine the impact of blocking PD-1 on cytokine expression and on progression of lesions to cancer. The results of this study show increased production of IL-2 and the inflammatory cytokines IL-6, IL-17 and TNF-α by spleen cells of lesion-bearing mice that were treated with PD-1 antibody for one week compared to cytokine production by spleen cells of lesion-bearing mice treated with control antibody. Production of IFN-γ increased at 3 weeks of PD-1 antibody treatment, although production of the other Th1 and inflammatory mediators declined...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27881522/prevalence-of-papillomavirus-in-brazil-a-systematic-review-protocol
#9
Verônica Colpani, Augusto Bacelo Bidinotto, Maicon Falavigna, Silvana Pereira Giozza, Adele Schwartz Benzaken, Cristina Pimenta, Ana Goretti Kalume Maranhão, Carla Magda Allan Santos Domingues, Luciano Serpa Hammes, Eliana M Wendland
INTRODUCTION: Human papillomavirus (HPV) infection is a cause of premalignant and malignant cancer in the lower genital and digestive tracts. In Brazil, there have been no prevalence studies that included a nationwide sample, and the prevalence of HPV has not been determined in many regions. METHODS: We will search the EMBASE, LILACS, MEDLINE, Web of Science and SciELO databases and previously published review articles to identify original research articles assessing HPV prevalence of the perineal (cervical, penile and anal) and oral areas...
November 22, 2016: BMJ Open
https://www.readbyqxmd.com/read/27833864/a-clinical-study-of-oral-mucosal-lesions-in-patients-visiting-a-tertiary-care-centre-in-central-india
#10
Rashmi Goyal, Shalini Jadia, Leena Jain, Chhavi Agarawal
The aim of this study was to find the frequency of various oral mucosal lesions in relation to age, sex, site and associated addiction habits. This retrospective study was done in tertiary care centre including 1280 patients of oral mucosal lesions. Clinical findings and detailed history of their addiction habits with frequency and duration was noted from the existing data. Cytological and histopathological diagnosis of various lesions was recorded to conclude diagnosis. The most common lesion in this study was found to be aphthous ulcers (44...
December 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/27829738/adjunctive-aids-for-the-detection-of-oral-premalignancy
#11
REVIEW
D Charanya, L P Raghupathy, Amjad Fazeela Farzana, R Murugan, R Krishnaraj, G Kalarani
Early detection of cancer greatly decreases the morbidity and mortality rates and thereby increases the 5-year survival rates. In developing countries like India where the disease is highly prevalent focus is mainly on decreasing the mortality rates which can be easily achieved by detection at an asymptomatic stage. Visual examination has been the standard screening method for screening oral cancer through several decades, and it is well known that conventional visual examination is limited to subjective interpretation and cannot be easily achieved in certain anatomical sites...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/27824386/noak-behandling-%C3%A3-kar-risken-f%C3%A3-r-gastrointestinal-bl%C3%A3-dning-kan-avsl%C3%A3-ja-allvarlig-sjukdom-%C3%A2-strukturerad-uppf%C3%A3-ljning-viktig
#12
Anna Haeggström, Dag Risberg, Faris Al-Kahlili, Åsa Gilstring, Ulrika Tullberg, Håkan Wallén
Gastrointestinal bleeding during treatment with non -vitamin K antagonist oral anticoagulants (NOACs) may be caused by malignant lesions Gastrointestinal bleeding due to underlying malignancy may not be uncommon in real life patients on non vitamin K antagonist oral anticoagulants (NOACs) like dabigatran, rivaroxaban or apixaban. We performed a small pilot study in patients referred to endoscopy due to suspected gastrointestinal bleeding. In twenty NOAC-treated patients, we found four cases of manifest malignant colon tumors, one premalignant colon adenoma, and one gastric B-cell lymphoma...
November 7, 2016: Läkartidningen
https://www.readbyqxmd.com/read/27801978/high-resolution-dna-content-analysis-of-microbiopsy-samples-in-oral-lichen-planus
#13
M Pentenero, M Monticone, R Marino, C Aiello, G Marchitto, D Malacarne, W Giaretti, S Gandolfo, P Castagnola
OBJECTIVES: DNA aneuploidy has been reported to be a predictor of poor prognosis in both premalignant and malignant lesions. In oral lichen planus (OLP), this hypothesis remains to be proved. This study aimed to determine the rate of occurrence of DNA aneuploidy in patients with OLP by high-resolution DNA flow cytometry. METHODS: Patients with OLP were consecutively enrolled. Tissue samples were subdivided for formalin fixation and routine histological assessment and for immediate storage at -20°C for later DNA ploidy analysis, which was performed by DAPI staining of the extracted nuclei and excitation with a UV lamp...
November 1, 2016: Oral Diseases
https://www.readbyqxmd.com/read/27794159/expression-of-myofibroblasts-in-oral-squamous-cell-carcinoma-an-immunohistochemical-study
#14
B Vikas Prasad, Gauri S Kakatkar, Preet Jain, Meetu Jain, Maulik Patel, Javed Khan
INTRODUCTION: Oral squamous cell carcinoma (OSCC) is one of the most common types of malignancy affecting the orafacial region and with a high mortality rate. The fact that stroma of the tumor modulates and facilitates the progression and metastasis of the malignancy has been shown in the past studies. The cells of the activated stroma that are responsible for the progression and metastasis of the tumor are the fibroblasts having smooth muscle properties. These myofibroblasts are said to secrete numerous inflammatory mediators and factors which are said to play a crucial role in tumor progression...
October 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27756983/evaluation-of-cytomorphometric-changes-in-tobacco-users-and-diagnosed-oral-squamous-cell-carcinoma-individuals
#15
Urmila Udayashankar, Vijay Srinivas Guduru, Anuradha Ananthaneni, Sabitha Devi Ramisetty, Puneeth Horatti Kuberappa, Srilekha Namala
AIMS: To determine the cellular and nuclear area of keratinocytes in smears obtained from the oral mucosa of tobacco users, those with oral squamous cell carcinoma (OSCC), and from normal healthy persons and resolve if any significant difference exists in these three groups. MATERIALS AND METHODS: The study group comprised 100 subjects 20 controls, (40 OSCC patients-20 from lesional sites and 20 from nonlesional sites, 20 tobacco smokers and 20 tobacco chewers) in the age group of 25-75 years...
July 2016: Journal of Cytology
https://www.readbyqxmd.com/read/27721608/argyrophilic-nuclear-organizer-region-and-p73-expression-in-head-and-neck-squamous-cell-carcinomas-teammates-or-adversaries
#16
Sunil Pazhayanur Venkateswaran, Leviana Ercylina Nathan, Vimi Sunil Mutalik, Noor Hasni Shamsuddin
CONTEXT: Head and neck squamous cell carcinoma (HNSCC) consists of squamous cell carcinomas (SCCs) arising in the upper aerodigestive tract and accounts for 5% of cancers worldwide. In Malaysia, cancers of the nasopharynx, larynx, tongue and oral cavity are among the top twenty most common cancers in men. Argyrophilic nuclear organizer regions (AgNORs) are increased from normal mucosa to premalignant lesions to malignant lesions and have been associated with tumor grade and prognosis of patients...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27721603/dysplastic-change-rate-in-cases-of-oral-lichen-planus-a-retrospective-study-of-112-cases-in-an-iranian-population
#17
Soussan Irani, Alireza Monsef Esfahani, Anahita Ghorbani
BACKGROUNDS: Lichen planus is a chronic systemic disease and oral mucosa is commonly involved. Oral lichen planus (OLP) most commonly affects middle-aged women. The prevalence of the disease ranges between 0.5% and 2.6% in the general population and the range of malignant transformation varies between 0% and 10%. OBJECTIVES: To assess the rate of malignant transformation of OLP samples. MATERIALS AND METHODS: This retrospective study was carried out on 112 medical records of patients with histological diagnosis of OLP who attended the Department of Pathology at the Educational Hospital from 2005 to 2012...
September 2016: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/27720656/microrna-375-as-a-biomarker-for-malignant-transformation-in-oral-lesions
#18
Amani M Harrandah, Sarah G Fitzpatrick, Molly H Smith, Dunrui Wang, Donald M Cohen, Edward K L Chan
OBJECTIVE: Malignant transformation of oral premalignant lesions is the key process in the progression to oral squamous cell carcinoma (OSCC). Previously, we identified miR-7 and miR-21 as candidate oncogenes and miR-375 and miR-494 as candidate tumor suppressors in OSCC. We aim to evaluate these microRNAs as biomarkers of malignant transformation in oral premalignant lesions. STUDY DESIGN: Formalin-fixed, paraffin-embedded samples from progressive premalignant lesions and paired sequential OSCC tumors at the same site were obtained from same patients (n = 31)...
December 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27713748/indomethacin-treatment-of-mice-with-premalignant-oral-lesions-sustains-cytokine-production-and-slows-progression-to-cancer
#19
Sara D Johnson, M Rita I Young
Current treatment options for head and neck squamous cell carcinoma (HNSCC) patients are often ineffective due to tumor-localized and systemic immunosuppression. Using the 4-NQO mouse model of oral carcinogenesis, this study showed that premalignant oral lesion cells produce higher levels of the immune modulator, PGE2, compared to HNSCC cells. Inhibiting prostaglandin production of premalignant lesion cells with the pan-cyclooxygenase inhibitor indomethacin stimulated their induction of spleen cell cytokine production...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27708346/role-of-areca-nut-induced-jnk-atf2-jun-axis-in-the-activation-of-tgf-%C3%AE-pathway-in-precancerous-oral-submucous-fibrosis
#20
Ila Pant, S Girish Rao, Paturu Kondaiah
Oral submucous fibrosis (OSF) is potentially premalignant with progressive and irreversible extracellular matrix deposition accompanied by epithelial atrophy and like other fibrotic disorders, is primarily a TGF-β driven disease. OSF is caused by prolonged chewing of areca nut. Our previous studies reported a pivotal role for TGF-β activation and its effects contributing to OSF. However, the mechanism for activation of TGF-β signaling in OSF is still unknown. In this study we demonstrate activation of TGF-β signaling with sub-cytotoxic dose of areca nut in epithelial cells and discovered a key role for pJNK in this process...
October 6, 2016: Scientific Reports
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