The effects of each inhibitor on the lipid levels in 3T3-L1 cells during adipogenesis. B (Black): Undifferentiated cells without the addition of the MDI, PPAR: cells with MDI and bisphenol A diglycidyl ether, AKt: cells with MDI and wortmannin, MEK: cells with MDI and U0126, p38: cells with MDI and SB202190, and JNK: cells with MDI and JNK inhibitor. The data are presented as the mean ± SD from three independent experiments. The arrow indicates the addition of the MDI mixture. The same letters indicate that there are no differences between those groups, and different letters indicate significant differences (P < 0.05).