FIG. 5.
Effects of GLP-1 on muscle glucose extraction. A: Saline control. P > 0.05 (ANOVA); n = 5. B: GLP-1 group. Compared with basal, *P < 0.05, n = 6; P = 0.008 (ANOVA). C: l-NAME + GLP-1 group. P > 0.05 (ANOVA); n = 5. GLP-1 was infused continuously at 30 pmol/kg/min. l-NAME was infused systemically starting 30 min before the initiation of GLP-1 infusion.