Cytopathological tests for early detection of oral carcinogenesis

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 individuals divided into four groups: control (n = 26), alcohol-smoking (n = 32), leukoplakia (n = 38), and the oral squamous cell carcinoma group (OSCC, n = 35). From the cytological scraping, a slide was silver impregnated for Ag-stained nucleolar organizer region analysis and another slide was stained using the Papanicolaou technique. The remaining cells were used for DNA extraction, followed by PCR amplification and capillary electrophoresis. The cell proliferation velocity rate was higher in the leukoplakia and OSCC groups compared with the control group (P 
Source: European Journal of Cancer Prevention - Category: Cancer & Oncology Tags: Oral Cancer Source Type: research

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ConclusionHigh levels of lifestyle-related cancer-risk behaviors were found in most of the Hong Kong construction workers studied. The present study contributes to understanding how cancer-related lifestyle risk behaviors cluster among construction workers and relative impact factors of risk behaviors. It is essential to tailor health behavior interventions focused on multiple risk behaviors among different groups for further enlarging the effects on cancer prevention.
Source: Safety and Health at Work - Category: Occupational Health Source Type: research
We report one case, in which the patient presented to the emergency department with lower urinary tract symptoms, fever and consumptive syndrome. Acute prostatitis was initially suspected, but subsequently prostate adenocarcinoma was diagnosed.This case enables us to consider the possibility of prostate adenocarcinoma as the diagnose in patients with fever of unknown origin, and the role of procalcitonin to rule out the presence of infection.
Source: Urology Case Reports - Category: Urology & Nephrology Source Type: research
Publication date: Available online 21 January 2020Source: European UrologyAuthor(s): Charalampos Fragkoulis, Georgios Papadopoulos, Konstantinos Ntoumas
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 21 January 2020Source: European UrologyAuthor(s): Jae Heon Kim, In Gab Jeong
Source: European Urology - Category: Urology & Nephrology Source Type: research
Publication date: Available online 21 January 2020Source: European UrologyAuthor(s): Chang Wook Jeong, Samuel L. Washington, Annika Herlemann, Scarlett L. Gomez, Peter R. Carroll, Matthew R. CooperbergAbstractBackgroundActive surveillance (AS)/watchful waiting (WW) strategy for localized prostate cancer (PCa) is increasingly and broadly endorsed as a preferred option for initial treatment of men with very low- and low-risk PCa, but outcomes can be difficult to analyze in traditional, population-based registries. The recently released Surveillance, Epidemiology, and End Results (SEER) Prostate with WW dataset provides an op...
Source: European Urology - Category: Urology & Nephrology 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
Conclusion Most head and neck pathologies show a broad cellular heterogeneity making it difficult to achieve an accurate diagnosis and efficient treatment (Graf and Zavodszky, 2017; Lo Nigro et al., 2017). Single cell analysis of circadian omics (Lande-Diner et al., 2015; Abraham et al., 2018), may be a crucial tool needed in the future to fully understand the circadian control of head and neck diseases. It becomes more obvious that there is only a small genetic component but a largely unknown epigenetics and/or environmental component for most of the head and neck pathologies (Moosavi and Motevalizadeh Ardekani, 2016; He...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Conclusion: Saliva microbiota diversity and composition were significantly associated with body size and gender in Finnish children. Body size–specific saliva microbiota profiles open new avenues for studying the potential roles of microbiota in weight development and management. Introduction The composition and diversity of the human microbiota may be an important factor in health and disease (Cho and Blaser, 2012). Several studies have proposed that changes in the human gut microbiota may alter pathogenic mechanisms, which are associated with the development of obesity and insulin resistance (Musso et al., ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Authors: Ottria L, Candotto V, Cura F, Baggi L, Arcuri C, Nardone M, Gaudio RM, Gatto R, Spadari F, Carinci F Abstract In addition to tobacco and alcohol consumption, the two main risk factors for oral squamous cell carcinoma (OSCC), recent studies have revealed infections with human papilloma virus (HPV) as an additional risk factor for OSCC development. In the field of head and neck malignancies, the prevalence of HPV infections in oropharyngeal cancer (OC) ranges in different studies up to 84%. While HPV infection is discussed as an independent risk factor in this region, its distinguished role in carcinogenesis...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
CONCLUSION: We think that it is fundamental to perform a prolonged follow-up of skin flap if a white patch or erythema raising clinical suspicion are present. Incisional biopsy has to be performed in order to identify those lesions potentially inclined to a malignant transformation, such as p53 expression and Ki67 index. KEY WORDS: Free flap, Oral cancer, Squamous cell carcinoma. PMID: 27131477 [PubMed - as supplied by publisher]
Source: Annali Italiani di Chirurgia - Category: Surgery Tags: Ann Ital Chir Source Type: research
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