Baseline Data ( separately for two groups). Number of patients. Gender Race/etnicity Age Weight, BMI Duration of DM Diabetic microangiopathy: retinopathy, neuropathy, nephropathy Medications for DM Creatinine Microalbumin Proteinuria HbA1c% Hb Ca, P, PTH Albumin Hypertension: BP Cholesterol, LDL, TG Smoking: current, previous Alcohol consumption Comorbidites: HTN, CAD, CHF, PVD, Hypercholesterolemia, CVA/TIA Drugs: ACEi, ARBs, CCB, beta-blockers, statines, antiplatlate Use of nephrotoxic medications: NSAIDs