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. 2015 Jun 11;3(5):721–725. doi: 10.3892/br.2015.476

Figure 2.

Figure 2.

Effect of different glucose concentrations (5 or 25 mmol/l) on insulin secretion in the glucose and glucose plus metformin groups. In the glucose group compared with the glucose plus metformin group, insulin secretion was increased but this difference was not significant. The increase of glucose concentration (25 mmol/l) causing insulin secretion was increased compared with that of glucose 5 mmol/l.