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The beneficial effect of metformin on β‐cell function in non‐obese Chinese subjects with newly diagnosed type 2 diabetes

Studies with metformin suggest a favourable change in β‐cell function over sulphonylureas in the early course of obese type 2 diabetes mellitus (T2DM), but it remains unclear whether a similar effect is observed in non‐obese individuals. Here we investigated the effects of metformin or glipizide gastrointestinal therapeutics system extended‐release formulation (GITS) on β‐cell function in non‐obese patients with newly diagnosed T2DM.