Protective effects of ethyl acetate fraction from aged garlic extract against Aβ-induced memory impairment in mice. Control group was injected with saline (0.85%). Aβ25-35 was injected with 410 pmol of Aβ25-35 per mouse. For further explanation see the legend to Figure 4. Values indicate the mean ± SD (n = 8). p < 0.05 versus control group, p < 0.05 versus Aβ25-35 group. Values with the same letter are not significantly different.