Comparison of the Neuroprotective and Anti-Inflammatory Effects of the Anthocyanin Metabolites, Protocatechuic Acid and 4-Hydroxybenzoic Acid

Figure 4

MTT viability assay of SNP-treated CGN cultures. (a) Representative MTT images of untreated control CGNs, CGNs treated with 100 μM protocatechuic acid (PCA) or 100 μM 4-hydroxybenzoic acid (HBA) alone, CGNs treated with sodium nitroprusside alone (SNP), and CGNs treated in combination with SNP and either PCA or HBA. (b) Quantitative assessment of cell viability. Data are represented as mean ± SEM for experiments, each performed in duplicate. indicates in comparison to untreated control, and †† indicates in comparison to cells treated with SNP alone, by one-way ANOVA with a post hoc Tukey’s test.

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