Figure 4

Comparison of glucose uptake effects between commercial rhIGF-I and transgenic rice seed extracts (SI) on L6 cells. Different concentrations of commercial rhIGF-I (1 nM to 16 nM) and SI seed crude proteins (1.25 mg to 5 mg) were added to the L6 cells and the effects on glucose uptake were measured. Insulin (100 nM) was the positive control while basal was the negative control. Data are shown as means ± SD. *p < 0.05, **p < 0.01.