Research Article

Dehydroepiandrosterone Prevents H2O2-Induced BRL-3A Cell Oxidative Damage through Activation of PI3K/Akt Pathways rather than MAPK Pathways

Figure 7

Effects of DHEA on Bax and caspase-3 protein expression in H2O2-treated BRL-3A cells. (a) Immunoblot of Bax and caspase-3 in BRL-3A cells pretreated with 1-100 μM DHEA (24 h) and then exposed to 150 μM H2O2 (2 h). (b) Bax protein expression. (c) Caspase-3 protein expression. (d) Immunoblot of Bax and caspase-3 in BRL-3A cells pretreated with 50 μM of the phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002 or vehicle for 1 h before exposure to 0, 1, 10, or 100 μM DHEA (24 h) and then 150 μM H2O2 (2 h). (e) Bax protein expression. (f) Caspase-3 protein expression. Data are presented as the . compared to the vehicle-treated group; and †† compared to the group treated only with H2O2.
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