Figure 2.

Effects of glucagon-like peptide-1 (GLP-1) on proliferation of EPCs. GLP-1 increases EPCs proliferation capacity. Cells were isolated and incubated with different concentrations of GLP-1 for 72 hours. MTT assay was also performed for EPCs proliferation activity, normalized to cells incubated in control medium. Data are expressed as means ±SE; n=6, *P < 0.05 vs. control. **P<0.01 vs. control (Figure 2A). Cell colony formation was observed in EPCs cultured with GLP-1 10nM (Figure 2C) different from control (Figure 2B).