Figure 7

(A) Effect of OEO and thymol on Δψm in MDA-MB-231 control cells and treated cells with IC50 of OEO and thymol. The histograms reveal a left shift of peak demonstrated the decrease of Rh-123 fluorescence intensity because of the loss of MMP. (B) Effect of OEO and thymol on the formation of reactive oxygen species (ROS) in MDA-MB-231 control cells and treated cells with IC50 of OEO and thymol respectively. The histograms with a right shift reveal the increase of ROS level in treated MDA-MB231 cells with OEO and thymol.