Figure 4

Cell viability analysis of NB cells treated with VPA or TSA. SH-SY5Y and SK-N-BE(2) cells were treated with the indicated concentrations of (A) VPA or (B) TSA for 3 days. The amount of viable cells was then assessed using MTT assay. The results are presented as a percentage of values after treatment compared to nontreated cells ±s.d.