Fig. 1
Glucose concentration (a) C2C12 muscle cells glucose uptake and (b) H-4-11-E liver cells extracellular glucose (expressed as percentage of untreated control cells ± standard error of mean, n = 9) exposed to the fractions of F. lutea extract and insulin as positive control (100 μU = 3.64 μg/ml). Fractions: 
500, 
250, 
125, 
63, 
31, 
15 μg/ml; Insulin: 
10,
1μU