Figure 8. Phosphorylated p38 protein content in the retinal arteries and neuroretina. Data are presented as mean optical density (A and B) and representative western blots (C and D) from animals subjected to ischemia and 5 (n=4), 12 (n=8), or 20 (n=5) h of reperfusion (I-R) and their corresponding sham-operated eyes. Note that there was no difference in phosphorylated p38 (p-p38) expression between sham-operated and ischemia-reperfusion eyes. Values are presented as means±standard error of the mean. Statistical comparison was performed using a paired Student ratio t test (ischemia versus sham-operated eyes) with Bonferroni correction.