Swimming training promoted the expression of antioxidant enzymes in AMPKα2^+/+ mice but not AMPKα2^-/- mice.

Western blot analysis of protein levels of CAT (A), SOD1 (B) and SOD2 (C) in AMPKα2^+/+ mice. RT-PCR analysis of mRNA levels of CAT(D), SOD1(E) and SOD2(F) in AMPKα2^+/+ mice. They are all normalized to level of GAPDH (all n = 5). ^*P<0.05, ^**P<0.01, ^***P<0.001 swim+vehicle vs. sed+vehicle; ^#P<0.05, ^##P<0.01 swim+ISO vs. sed+ISO. Western blot analysis of protein levels of CAT (G, n = 4), SOD1 (H, n = 4) and SOD2 (I, n = 4) in AMPKα2^-/- mice. RT-PCR analysis of mRNA levels of CAT (J, n = 5),SOD1 (K, n = 7) and SOD2 (L, n = 5) in AMPKα2^-/- mice. They are all normalized to GAPDH. Data are mean±SEM.