 The purpose of this study is to investigate small intestinal remodeling and reprogramming of glucose metabolism in patients with Type 2 Diabetes Mellitus T2DM who undergo laparoscopic Roux-en-Y Gastric Bypass RYGB. Our specific goal is to determine if the gene and protein expression levels of GLUT-1 are up regulated in the Roux limb and whether this is a major mechanism for the remission of T2DM following RYGB. 