TABLE 1

Flow cytometric analysis of mitochondrial membrane potential in human lung cancer NCI-H209 cells with or without treatment with quercetin glucuronides for 24 h

Values are mean ± S.D.; n = 3. The NCI-H209 cells (5 × 105 cells/ml) were treated with various concentrations of quercetin glucuronides. The zero concentration was defined as control. The percentage of cells that were stained by DiOL6 dye and the stained cells were determined by flow cytometry as described under Materials and Methods.


Quercetin Glucuronides

Percentage of Cells Stained by DiOL6
0 (control) 96.1 ± 9.2
0.5 μM 88.2 ± 8.1
1 μM 68.7 ± 7.1
2.5 μM 44.6 ± 5.4*
5 μM 29.6 ± 3.8*
10 μM
12.8 ± 1.9*
  • * Difference is significant between quercetin glucuronide-treated and control, P < 0.05.