Carvacrol altered the protein expression of caspase-3, Bcl-2, and Bax of the hippocampus in ethanol-treated C57BL/6 mice and hippocampal neurons. (a), (b), and (c) show the quantitative analysis of the protein levels of caspase-3, Bcl-2, and Bax in mouse hippocampi and hippocampal neurons, respectively. The data were normalized to the loading control GAPDH. The data are expressed as the mean ± SEM ( n = 6 per group). ∗∗ P