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Background: This study aimed to assess several biochemical and oxidative stress parameters before and after radioiodine therapy in patients with well-differentiated thyroid cancer who consumed a low iodine diet and withdrawal of levothyroxine after total thyroidectomy. Methods:We enrolled 40 candidates for radioiodine therapy. Blood sampling was performed prior to as well as 72 h after consumption of 125-200 mCi of 131I. Total protein, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and creatinine were measured. Oxidative stress parameters that included malondialdehyde and protein carbonyl levels were also assessed. Results: There were significantly decreased total protein, creatinine, aspartate aminotransferase, and alanine aminotransferase levels (P

Background: It has been reported that ischemia-reperfusion is associated with augmentation of oxidative stress and its specific and sensitive markers. Oxidative stress may cause atrial fibrillation (AF) which is a common consequence after cardiac surgery. Dietary supplementation with antioxidants might lower the incidence of AF following coronary artery bypass graft (CABG) surgery. Materials and Methods: Fifty patients with coronary heart disease (CHD) referred to Namazi and Faghihi Hospitals in Shiraz, undergone elective CABG, were enrolled in this study. For evaluation of oxidative stress, whole blood was taken before and 24 hours after surgery and malondialdehyde (MDA) as an oxidative marker and glutathione (GSH) as an antioxidant marker were measured. Results: Results showed a significant difference between the mean concentration of GSH before and after CABG surgery (P