Fig. 9.
Effect of H2O2 concentration on induction of DNA fragmentation in EW-36 and JLP 119. Cells (5 × 105/mL) were incubated for 24 hours in growth medium containing the indicated concentrations of H2O2 (0, 25, 50, 75, or 100 μmol/L). Fragmentation of total cellular DNA (extract of 1 × 106 cells/lane) was assessed by agarose gel electrophoresis. The data shown are from a representative study that was repeated three times.