Obesity is one of the major issues in health population worldwide. Roux-en-Y gastric bypass (RYGB) considered a safe and effective treatment obese patients. In addition RYGB has shown therapeutic potential type 2 diabetic This study represents 6 months follow-up on 63 patients with BMI≥40 Kg/m3, suffering from both DM2 CKD, who underwent LRYGB. From 900 referred to Imam Reza, Sina, Bentolhod...