Application of in vivo stain of methylene blue as a diagnostic aid in the early detection and screening of oral cancerous and precancerous lesions

Conclusion: We recommend that methylene blue staining is a useful diagnostic adjunct in a large, community-based oral cancer screening program for high-risk individuals.
Source: Journal of Oral and Maxillofacial Pathology - Category: ENT & OMF Authors: Source Type: research

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AbstractSaliva is an ideal tool for liquid biopsy as it is noninvasive, easily collected, and easily transported. Saliva is used to detect various biomarkers in oral cancer patients, but none used for detecting salivary dysplastic cells in potentially malignant and malignant disorders. To detect dysplastic cells from saliva in oral cancer and potentially malignant patients and compare with wedge biopsy. All potentially malignant and malignant cases of oral cavity were included in this study. In these patients, unstimulated saliva was collected and centrifuged. The concentrated salivary substrate was stained by Haematoxylin...
Source: Indian Journal of Otolaryngology and Head and Neck Surgery - Category: ENT & OMF Source Type: research
CONCLUSIONS: HPV-.HRs are frequently found in hyperplastic and dysplastic epithelial lesions. HPV-HRs and HPV-16 were associated with dysplasia in urban population. Rural high risk population and urban population differ in the frequency and variety of HPV genotypes. PMID: 31880291 [PubMed - as supplied by publisher]
Source: Medicina Oral, Patologia Oral y Cirugia Bucal - Category: ENT & OMF Tags: Med Oral Patol Oral Cir Bucal Source Type: research
The carcinogenesis in the oral cavity occurs as a multistep process and is often preceded by potentially malignant lesions. The main risk factors for the development of oral cancer are smoking and alcohol intake. The current challenge is to identify patients at greatest risk for the development of oral cancer using noninvasive and effective methods. The aim of this study is to evaluate the microsatellite mutations in the 9p21 locus, the cell proliferative activity, the pattern of epithelial desquamation, and the nucleus/cytoplasm ratio of exfoliated epithelial cells. Cytopathological samples were collected from 131 individ...
Source: European Journal of Cancer Prevention - Category: Cancer & Oncology Tags: Oral Cancer Source Type: research
Publication date: January 2020Source: Biomedical Signal Processing and Control, Volume 55Author(s): Archana Nawandhar, Navin Kumar, Veena R, Lakshmi YamujalaAbstractSquamous cell carcinoma (SCC) of oral cavity is the most common among oral cancer patients. In this paper, we have developed machine learning based automatic oral squamous cell carcinoma (OSCC) classifier named as Stratified Squamous Epithelial Biopsy Image Classifier (SSE-BIC) to categorize H&E-stained microscopic images of squamous epithelial layer in four different classes: normal, well-differentiated, moderately-differentiated and poorly-differentiated. Fiv...
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research
Abstract Traditional tobacco products have well-known systemic and local oral effects, including inflammation, vasoconstriction, delayed wound healing, and increased severity of periodontal disease. Specifically in the oral cavity and the lung, cigarette smoking produces cancer, increased infectivity, acute and chronic inflammation, changes in gene expression in epithelial lining cells, and microbiome changes. In recent years, cigarette smoking has greatly decreased in the United States, but the use of new tobacco products has gained tremendous popularity. Without significant knowledge of the oral sequelae of prod...
Source: Adv Dent Res - Category: Dentistry Authors: Tags: Adv Dent Res Source Type: research
Publication date: Available online 19 September 2019Source: Seminars in Cancer BiologyAuthor(s): Annie Wai Yeeng Chai, Kue Peng Lim, Sok Ching CheongAbstractOral squamous cell carcinomas (OSCC) are a heterogeneous group of cancers arising from the mucosal lining of the oral cavity. A majority of these cancers are associated with lifestyle risk habits including smoking, excessive alcohol consumption and betel quid chewing. Cetuximab, targeting the epidermal growth factor receptor was approved for the treatment of OSCC in 2006, and remains the only molecular targeted therapy available for OSCC. Here, we reviewed the current ...
Source: Seminars in Cancer Biology - Category: Cancer & Oncology Source Type: research
Authors: Rai K H, Ahmed J Abstract Background: Epithelial cells typically express E-cadherin where as N-cadherin expressed by mesenchymal cells. The epithelial to mesenchymal transition (EMT) is a process by which epithelial cells lose their cell polarity and cell-cell adhesion, and gain migratory and invasive properties to become mesenchymal cells. EMT is typical for carcinoma cells during tumor progression and correlate with the local invasiveness and metastatic potential of the tumor. Oral squamous cell carcinoma is a malignant neoplasm arising from the mucosal epithelium of the oral cavity. It can be classified...
Source: Asian Pacific Journal of Cancer Prevention - Category: Cancer & Oncology Tags: Asian Pac J Cancer Prev Source Type: research
Conclusion: CD44, a cell membrane marker could help in cell adhesion and cell-cell interactions. Loss of CD44 expression enhances the binding of the growth factors with their principle receptors that enhances the cellular proliferation. It can be used as a prognostic marker for identifying the rate of malignant transformation in these disorders.
Source: Journal of Oral and Maxillofacial Pathology - Category: ENT & OMF Authors: Source Type: research
Conclusion: On evaluation of the survey, we found that 85% of the surveyees are on agreement that PPOELs should be registered in a standard format and should be included in the list of recognizable diseases. 89.2% and 87.8% of the respondents would like to be part of an active body for early detection and diagnosis and for Cancer screening in our country respectively. In conclusion, the oral pathology fraternity is eager to work for and tackle these PPOELs head on, provided the right opportunities and training are meted out to them.
Source: Journal of Oral and Maxillofacial Pathology - Category: ENT & OMF Authors: Source Type: research
Conclusion: MN scoring on the epithelial cells of buccal mucosa can be used as a biomarker in screening procedures for HIV patients.
Source: Journal of Oral and Maxillofacial Pathology - Category: ENT & OMF Authors: Source Type: research
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