Figure 3. ROS generation was increased in the cardiocytes aging model induced by D-gal. H9c2 cells were treated with different concentrations of D-gal (0, 2, 10 and 50 g/L) for 24 hours. (A) ROS generation was detected using a DCFH-DA probe. Representative fluorescent images showed that ROS generation was increased in the cardiocytes aging model induced by D-gal in vitro. (B) Intracellular ROS was quantified by flow cytometry.