Figure 2.

Concentration- and time-dependent effect of SB, SCH and DHSB on metabolic activity of larvae under aerobic (A–C) and hypoxic (D–F) conditions. Larvae were treated with 5 μM and 50 μM FLs, and MTT was added 4 h prior to formazan extraction. The results represent means ± SD from three experiments done in triplicates/group and are expressed as the proportions (%) of absorbance in treated groups related to the absorbance in the control group (100%). Significantly different values from controls are shown as * p < 0.05, ** p < 0.01, *** p < 0.001. (SB) silybin; (SCH) silychristin; (DHSB) dehydrosilybin.