HepG2 cells were cultured in high-glucose DMEM supplemented with 10 % FBS. After confluence,cells were cultured in 96-well cluster plates in high-glucose DMEM supplemented with 10 % FBS for 24 h,and then the cells were treated with 10-7 mol/l insulin for 36 h in serum-free and phenol red-free high-glucose DMEM. After 36 h high concentration insulin stimulated, the cells were washed by pH = 4 high-glucose DMEM for 4 time and PBS for 2 times, then add in serum-free and phenol red-free high-glucose DMEM with compounds in different concentrations and incubated for 24 h. After this incubation, glucose content in the cluture medium was measured by glucose oxidase method using glucose assay kit to assy the remainder glucose in the cluture medium to study the effect on glucose comsumption of IR HepG2 cells. The enhancement ratio of glucose consumption(GC) was calculated as follows