(A–E) Showing the H.&E. stain for identification of inflammatory cellular infiltration in LV myocardium (blue color). (F) Analytical result of cellular infiltration area, * vs. other groups with different symbols (†, ‡, §), p < 0.0001. (G–K) Illustrating immunofluorescent microscopic finding (400×) for identification of γ-H2AX+ cells (pink color). (L) Analytical result of number of H2AX+ cells, * vs. other groups with different symbols (†, ‡, §), p < 0.0001. All statistical analyses were performed by one-way ANOVA, followed by Bonferroni multiple comparison post hoc test (n = 6). Symbols (*, †, ‡) indicate significance (at 0.05 level). NC = normal control; SC = sham control; BDEX = brain death extrac; Mel = melatonin; Luz = luzindole.