ABSTRACT
Gingivitis is a reversible and non-destructive form of periodontal disease. Oxidative stress contributes in the pathogenesis of periodontal diseases5. The oxidative stress has been implicated as one of the important contributory etiologic factors in many of the oral inflammatory pathologies including gingivitis. This research analyzed the "Total antioxidant capacity" (TAC) of biological fluids including saliva. The present cross-sectional study was conducted to evaluate the total antioxidant capacity (TAC) of saliva in children with/ without gingivitis and its relation with Age and Gender. For measuring the TAC of saliva: Cayman's Antioxidant Assay Kit was used and Gingival Index Measured through The Gingival Index (Löe and Silness, 1963). The results were analyzed using descriptive statistics and making comparisons between cases and control by using SPSS software version 20. In this result, mean TAC of saliva in case children group was found lower 0.203 ± 0.053 compared to control children group was higher 0.236 ± 0.048. While, in male and female children of aged 3-5 years were found antioxidant activity (TAC) lower in compared to control groups. But among males aged 6-13 years it was found that the mean antioxidant capacity of saliva in case group was 0.259 ± 0.040 while in control group it was 0.295 ± 0.026. The TAC of saliva in males was found high compared to female. A weak negative correlation was found between the TAC and gingival index. In conclusion TAC decreases in children with gingivitis compared to healthy children. The gingivitis was more observed in female leading to lower TAC value
ABSTRACT
Diabetic nephropathy (DN) is a chronic complication of both type 1 and type 2 diabetes. However, there is still inadequate understanding of the exact mechanism related to progressive diabetic renal disease. The GLUT-1 XbaI gene polymorphism in the glucose transporter has been suggested in the development of DN. However, its association with T2DM and DN is controversial and has not been established in different ethnic populations. To enhance the understanding of GLUT-1 XbaI gene polymorphism in the context of T2DM and DN. We investigated the possible genetic association of GLUT-1 XbaI polymorphism with T2DM and DN in North Indian population. 100 T2DM patients and 100 patients of DN with 100 healthy controls were included in the study. GLUT-1 XbaI polymorphism was determined by PCR (polymerase chain reaction) and RFLP (restriction fragment length polymorphism). The obtained data showed no significant association between GLUT-1 XbaI gene polymorphism with T2DM and DN leading us to conclude that GLUT-1 XbaI gene polymorphism may not have major effects on T2DM and DN in North Indian population.
ABSTRACT
PURPOSE: The primary metabolic characteristic of malignant cells is an increased uptake of glucose and its anaerobic glycolysis. Recent studies have demonstrated that facilitative glucose transport across the plasma membrane is mediated by a family of proteins, i.e., glucose transporters. PURPOSE: In order to evaluate the clinicopathologic correlations of glucose transporter genes expressed in colorectal cancer, the author studied the expression of glucose transporter genes in human colorectal cancer and analyzed their expression in normal and malignant colorectal tissues. METHODS: A reverse transcriptase-polymerase chain reaction (RT-PCR) was applied to quantitatively determine the levels of the glucose transporter genes, GLUT1 and GLUT3, from Crohnes diseases (N=2), adenomatous polyps (N=4), and colorectal cancers (N=40) and their normal counterparts. RESULTS: The expresssion of the GLUT1 gene was detected in 50% of the inflammatory colonic mucosae and adenomatous polyp tissues, but the levels of expression were not significantly different from their normal counterparts. Among the 40 colorectal cancer patients, 23 patients (57.5%) showed GLUT1 gene expression and the levels of expression were increaed by 1.8 as compared to their normal counterparts (p<0.05). The expression of the GLUT3 gene was detected in almost all tissues examined, and the levels of expression were not significantly different from their normal counterparts. In colorectal cancers, there was correlation between GLUT1 expression, the extent of lymph node involvement and the stage of colorectal cancers (p<0.05). But, the correlation between the expressions of the GLUT3 gene and the clinicopathologic prognostic factors of colorectal cancers could not be determined because almost all tissues showed a GLUT3 gene expression. CONCLUSIONS: In conclusion, the GLUT1 glucose transporter expression in colorectal cancer was associated with high possibilities of lymph node metastases and poorer prognosis, and the assessment of GLUT1 expression in colorectal cancer would be useful in identifying high risk patients.