Oral squamous cell carcinoma (OSCC) is the most common type of oral neoplasm, accounting for over 90% of all oral malignancies and 38% of head and neck tumors. Worldwide, OSCC is the eighth most common human cancer, with more than 500,000 new cases being diagnosed every year with a fairly onerous prognosis, encouraging further research on factors that might modify disease outcome. Genetic and/or environmental risk factors associated with the development of oral cancer have been sufficiently understood (smoking, alcohol, betel, diet, living habits, etc.). Knowledge of the genetic basis in oral carcinogenesis is still a challenging task. To improve the diagnosis and prevention, a previously unknown type of chromatin modification, known as epigenetic, which is defined as heritable DNA changes that are not encoded in the sequence itself and which are reversible and increasingly appear to serve fundamental roles in cell differentiation and development are studied. Tumors shed their DNA into the blood and epigenetic changes that occur early during tumorigenesis, sometimes even in premalignant lesions, can provide valuable biomarkers. Key components involved in epigenetic regulation are DNA methylation, histone modifications and modifications in micro ribonucleic acids (miRNAs). Epigenetic modifications may contribute to aberrant epigenetic mechanisms seen in oral precancers and cancers. In the near future, epigenetic variations found in oral dysplastic cells can act as a molecular fingerprint for malignancies.
Background:Hepatic dysfunction in the cancer unit has a significant impact on patient outcomes. The therapeutic application of anthracycline antibiotics are limited by side-effects mainly myelosuppression, chronic cardiotoxicity, and hepatotoxicity.Aim:To assess the risk of Hepatotoxicity in breast cancer patients receiving Inj. Doxorubicin.Subjects and Methods:The investigation was a prospective study that was conducted in cancer patients receiving Inj. Doxorubicin doses of 50 mg/m2, and 75 mg/m2 at a South Indian tertiary care hospital. Sample collection was carried out from pre-chemotherapy to 4th cycle. Serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT), direct bilirubin and total bilirubin were assessed to determine hepatotoxicity. Data were analyzed using unpaired t-test, Pearson correlation using Graph-Pad Prism version 5.00 for Windows, Graph-Pad Software, San Diego, California, USA, www.graphpad.com.Results:Breast cancer patients comprised 37% (49/132) of the total female cancer patient population, of which 46 patients with a mean age of 46.6 (13.4) years were included and 30.4% (14/46) patients were developed hepatotoxicity. The mean standard deviation of SGOT, SGPT, direct bilirubin, total bilirubin in the pre-chemotherapy cycle to fourth chemotherapy cycle were found to be 21.97 (5.798) U/L and 181.3 (103.6) U/L, 23.17 (6.237) U/L and 147.6 (90.9) U/L, 0.1351 (0.1186) mg/dL and 0.5445 (0.4587) mg/dL, 0.3094 (1.346) mg/dL and 2.7163 (1.898) mg/dL simultaneously where P < 0.05 which were statistically significant.Conclusion:There exist a strong correlation between the use of Inj. Doxorubicin and risk for developing hepatotoxicity. The health-care professionals dealing with breast cancer patients need to have awareness for hepatotoxicity with the use of Inj. Doxorubicin therapy.
Objectives:To study and compare the changes in nuclear and cellular size, shape and nuclear–cytoplasmic ratio of the cells in the basal layer of oral leukoplakia and well-differentiated oral squamous cell carcinoma (SCC) with normal buccal mucosa, using computer-aided image analysis in tissue sections.Study design:This was a retrospective study conducted on tissue sections on a total number of 70 cases to determine the various morphometric parameters. The data collected in this study were analyzed statistically by computing descriptive statistics, viz., percentage, mean, standard deviation, standard error of mean, 95% confidence interval for mean. The difference in the control and study groups for various diagnostic variables was compared by means of analysis of variance (ANOVA), Student’s t-test for independent samples, wherever applicable. Mann–Whitney U-test and Kruskal–Wallis test were used where the data were found to be asymmetrical and the standard deviations were also different. The results were considered statistically significant whenever P ≤ 0.05.Results:Our results were significant for the morphometric parameter, size. The values of nuclear perimeter and area, cellular perimeter and area increased gradually from the normal buccal mucosa to leukoplakia, reaching the highest value in SCC. There was statistically significant difference in the nuclear and cellular areas to differentiate between leukoplakia and squamous cell carcinoma. Two variables which were used to study the shape, “form perimeter (PE)” and “contour index (CI)”, showed significant difference between normal buccal mucosa and leukoplakia and between normal buccal mucosa and SCC. The morphometric parameter, nuclear–cytoplasmic ratio, in our results showed an increase in leukoplakia and SCC compared to normal buccal mucosa, but the difference was not significant between leukoplakia and SCC.Conclusion:The morphometric parameter, size, was useful to differentiate between normal, potentially malignant leukoplakia and SCC.
Objective: Breast cancer is one of the most important cancers among women across the world as well as in India and therefore there is a great need to evaluate Quality of Life (QoL). Hence, we carried out a study that could give us an idea to predict the affecting factors on QoL among women with breast cancer. Materials and Methods:The study was carried out in MGM Hospital, which is located at Warangal, Andhra Pradesh, India. We assessed the overall QoL, symptoms of patients affected by breast cancer by using QoL questionnaires such as EORTC QLQ C-30, EORTC QLQ-BR23, on ≤2 cycle as Review-I and on ≥5 cycles as Review-II. Results: In the functional scale of breast cancer patients, physical, role function, future perspective and in symptom scale, fatigue, insomnia, arm symptoms and upset by hair loss were found to be significantly affected (P < 0.05). Global Health Status was mainly influenced by physical, social function, body image, future perspective, insomnia, breast and arm symptoms (P < 0.005). Conclusion: These findings have shown that there exists a strong correlation between the length of treatment and the QoL among breast cancer patients. Future interventions should target each specific aspect of QoL.
Context:Myofibroblasts (MFs) are fibroblasts with smooth muscle-like features characterized by the presence of a contractile apparatus. Alpha-smooth muscle actin (α-SMA) is the actin isoform that predominates within vascular smooth muscle cells and plays an important role in fibrogenesis. MFs are metabolically and morphologically distinctive fibroblasts expressing α-SMA, and their activation plays a key role in development of the fibrotic response.Aims and Objectives:The aim of this study is to demonstrate the frequency, distribution and expression of α-SMA-positive MFs in odontogenic keratocyst (OKC), dentigerous cyst (DC) and ameloblastoma and correlate it to their aggressive biological behavior.Settings and Design:A retrospective study of 45 diagnosed cases, which includes 15 cases of OKC, 15 cases of DC and 15 cases of ameloblastoma, was undertaken to demonstrate expression of α-SMA retrieved from archives of our department.Materials and Methods:α-SMA mouse anti-human antibody and horseradish peroxidase detection system were used in this study.Statistical Analysis:Descriptive statistical analysis and ANOVA test were used for statistical analysis.Results:The difference in mean α-SMA count was found to be statistically significant between ameloblastoma and DC group (P < 0.001) as well as OKC and DC group (P < 0.001). No significant difference is observed between ameloblastoma and OKC group (P > 0.05). Results showed that mean number of stromal MFs in OKC and ameloblastoma were significantly higher than DC.Conclusion:The present study has shown that the mean number of MFs was higher in OKC and ameloblastoma, while the mean number of MFs in DC was quite low and significantly different from that of ameloblastoma and OKC.
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