Figure 1.

Cell viability in 1321N1 astrocytic cells exposed to the beta-amyloid (Aβ), valproic acid, and arundic acid. Cell viability was measured using the methylthiazolyldiphenyl-tetrazolium bromide (MTT) test. Data were analyzed using one-way analysis of variance (ANOVA) followed by the Tukey’s test. P-value of lower than 0.05 was the significant level. Aβ: beta-amyloid peptide25-35 (200 µM), AA: arundic acid (50 µM), Val0.5: valproic acid (0.5 mM), Val1: valproic acid (1 mM). ‡: P-value of <0.001 compared to the control, *, and **: P-value of <0.05 and <0.001 compared to the Aβ-treated group, respectively