Antioxidant Potential of Selected Korean Edible Plant Extracts

Figure 2

Cellular antioxidant effects of CC, CJ, and VD extracts. (a) MCF-7 cells were treated with the designated extracts and then exposed to tBHP. The intracellular ROS levels were determined by DCF fluorescence intensity. Treatment with CJ extract at 100 μg/mL effectively reduced the tBHP-induced ROS levels. ; error bars, mean ± SEM. Asterisk indicates a significant difference in comparison with the control (no tBHP treatment). Different alphabetical letters indicate significant differences among the tBHP-treated conditions. (b) HepG2-ARE cells were treated with the extracts (100 μg/mL) and ARE activities were assayed. SFN, sulforaphane (5 μM), is an ARE activator. Brstl, brusatol, is an Nrf2 inhibitor. ; error bars, mean ± SEM. Asterisks indicate significant differences in comparison with the control (no treatment). Hashtags for the brusatol-treated conditions indicate significant differences in comparison with their counteracting conditions, in which cells were treated with sample but not with brusatol.

(a)

(b)