(A) Protein expression of sirtuin 1 (SIRT1), * vs. other groups with different symbols (†, ‡, §), p < 0.0001. (B) Protein expression of SIRT3, * vs. other groups with different symbols (†, ‡, §), p < 0.0001. (C) The protein expression of interleukin (IL)-10, * vs. other groups with different symbols (†, ‡, §), p < 0.0001. (D) Protein expression of IL-4, * vs. other groups with different symbols (†, ‡, §), p < 0.0001. (E) Protein expression of mitochondrial cytochrome C (mit-Cyt C), * vs. other groups with different symbols (†, ‡), p < 0.0001. (F) Protein expression of cytosolic cytochrome C (mit-Cyt C), * 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 extract; Mel = melatonin; Luz = luzindole.