SAG and ischemia: At 7 days, 51.9 ± 5.8% arrestin+ cells ( 28.3 ± 3.2 cells/mm) were observed in the ischemia group in contrast to 100.0 ± 2.2% ( 54.6 ± 1.2 cells/mm) in the control group (p < 0.001; Figure 7F and Table 8B).