Hide/Show Apps

The effects of selenium on stz-induced diabetic rat kidney plasma membrane

Gurbanov, Rafig
The kidney is one of the most affected organs of body from diabetes. Diabetic kidney disease is a complication of diabetes seen in 30-40% of diabetic person. The aim of this work is to contribute the useful information in the therapy of diabetes. It is very important to know the role of antioxidants at the molecular level during diabetes. The protecting role of antioxidants against lipid peroxidation, the effect of cellular antioxidant enzyme systems, understanding the changes of membrane fluidity, lipid order and protein structure which are resulted from antioxidant treatment, determining the effective therapeutic dose with the help of biochemical methods are very important in order to understand the effect of antioxidants at molecular level. In this thesis work, the Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) was used in order to study the diabetic kidney disease at the molecular level, which is encountered as a complication of diabetes. Furthermore, the protecting and possible therapeutic role of selenium in the course of diabetic kidney disease was investigated. To conclude, the kidney plasma membranes were severely deteriorated due to diabetes with respect to its lipid, protein and carbohydrate structure and content, which were corrected after selenium treatment. The diabetes causes diminishment of whole membrane fluidity, which was normalized with the selenium administration. This is the first study demonstrating the effect of diabetes on kidney plasma membrane and the effect of selenium on stz-induced diabetic kidney plasma membranes using spectroscopic tools. The study revealed serious therapeutic and preventing capacities of selenium on diabetic kidney plasma membranes which needs confirmation of future researches. Furthermore, the dosage of selenium given to diabetics should be investigated in detail and proved with biochemical and clinical data.