Figure 2.

Resveratrol, curcumin and piperine MCF-7 cell viability and mitochondrial membrane potential: Cells were treated for 24 (●) and 48 (■) h with different resveratrol (A), curcumin (B) or piperine (C) concentrations, and cell viability was then determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. (D) Cells were treated for 24 h with 131.0 µM resveratrol, 24.5 µM curcumin or 94.5 µM piperine, and mitochondrial membrane potential was determined by 5,5′,6,6′-tetrachloro 1,1′,3,3′-tetraethyl benzimidazolyl carbocyanine iodide (JC-1) staining. The results are representative of three experiments performed in triplicate ± SEM. ** p < 0.001 in relation to the control.