Inductive Effect of Palmatine on Apoptosis in RAW 264.7 Cells

Figure 4

Supernatant level as a surrogate for NO. Nitrous acid ion () production in RAW 264.7 cells was measured using the NO₂/NO₃ assay kit FX. The black bars show the supernatant level that cultured RAW 264.7 cells for 2 h. The white bars show the supernatant level which cultured RAW 264.7 cells for 4 h. Asterisks indicate statistically significant differences ( < 0.05, < 0.01 versus control). Error bars denote ± SD.