Figure 10: Most caspase-3 positive cells were found surrounding the injury site in (a) the SS and (b) DLC-Cu-SS electrode group at day 3. Caspase-3 positive cells were found also surrounding the injury site in (c) the SS and (d) DLC-Cu-SS electrode group at day 7. (e) A few cells were also positive for caspase-3 staining in normal rat liver.