Fig. 6. Western blot analyses of phospho-p38, phospho–c-Jun N-terminal kinase (JNK), and phospho–extracellular signal-regulated kinase 1 and 2 (ERK1/2). ( A ) Representative Western blot; ( B ) densitometric analysis of five to six blots (mean ± SD) expressed as a percentage of values for corresponding control tissue samples (no ischemia or reperfusion, 3 h perfusion, group I). Group details are in figure 2. Densitometry data presented are normalized to the intensity of actin bands. * P < 0.01 compared with the other groups. ** P < 0.05 compared with the two control groups (I and II).