Fig. 2From: Effects of metformin on blood and urine pro-inflammatory mediators in patients with type 2 diabetesEffect of metformin with different durations on cytokines in serum and urine of patients with type 2 diabetes. Serum and urine were collected from type 2 diabetic patients treated with metformin for less (n = 71) and more than 1 year (n = 41) for cytokine measurement by ELISA. Data were shown as Mean ± SD. ** P < 0.05, vs metformin (<1 year) groupBack to article page