Correlation of fasting blood, salivary glucose and malondialdehyde in subjects with & without type 2 diabetes

Oxidative stress is identified as the common pathogenic factor that leads to insulin resistance in diabetics. Malondialdehyde is a product of lipid peroxidation. Aim: The aim of this study was to determine the variation in the Salivary malondialdehyde (MDA) among subjects with and without T2DM in comparison to the fasting blood and Salivary glucose. Methods: This study involved 29 healthy participants as Controls (group I) and 29 participants with Type 2 Diabetes Mellitus as Cases (group II). Salivary Glucose was analysed by glucose oxidase end-point assay. Thiobarbituric acid (TBA) assay method was considered for estimation of MDA in fasting saliva. Data was Statistically analysed using SPSS20. Parametric test was performed to analyse the data. Results: The correlation calculated between FBG with FSG level was found to be highly significant. A positive correlation between MDA levels with FBG was found. The relationship between FBG and FSG (r = 0.7815, p < 0.05), FBG and MDA (r =0.3678, p < 0.05) and FSG and MDA (r = 0.2869, p < 0.05) were found to be positively significant. Conclusion: Saliva as a unique body fluid can serve as a medium for biochemical analysis only in standard settings and with multiple measures to be used as a diagnostic tool in par with the gold standard serum. Salivary MDA levels can be considered as one of the oxidative stress markers in Type 2 Diabetic condition.