STUDY OF THE EFFECT OF HEMODIALYSIS ON LIPID PEROXIDATION CHANGES

Background and Oxidative stress is a reaction characterized with an imbalance between Oxidative and antiocidative agents. Lipid perocidation is one of the widely-known biological effects of oxid Oxidative stress. In hemodialysis patients, lipid peroxidation is likely to increase due to free radicals release from various sources. This study is therefore, intended to determine the effect of hemodialysis on lipid peroxidation changes in hemodialysis patients. Methods and Materials: In this descriptive-analytical study, samples (17 men and 10 women) were selected through convenient sampling; they had a history of 6-12 month hemodialysis. Malondialdehyde (MDA), an index for lipid peroxidation, was measured by TBA standardized method. Relevant statistical tests were used for data analysis. Mean MDA before and after hemodialysis were 4.17±1.24 and 4.98±1.2 mmol/l respectively; and the difference was significant. Also, a significant difference was found to exist between male and female mean MDA before and after hemodialysis. The findings revealed that oxidative stress manifests as increased lipid peroxidation after hemodialysis. Therefore, due to the important role of oxidative stress in causing and developing hemodialysis complication, appropriate measures can be taken to inhibit these reactions in order to take effective steps in patient's recovery.