Figure 3: YZFDF increased SH-SY5Y cell viability against oligomer toxicity. Cells were pretreated with or without various concentrations of YZFDF for 2 h and then incubated with 10 μM oligomer for 24 h. Subsequently, cell viability was measured by the MTT assay. The results are shown as mean ± SEM (, control versus Aβ; , Aβ + YZFDF versus Aβ).