Figure 5

Geniposide protects SH-SY5Y cells from formaldehyde injury. Conditions for the treatment of cells were as described in Figure 2, except that SH-SY5Y cells were first incubated with different concentrations of geniposide overnight, followed by treatment with formaldehyde for 12 h. The viability of cells was evaluated using the cell counting kit-8 ( A ). By contrast, cells were first exposed to formaldehyde overnight (conditions referred to in Figure 2), and then the medium was replaced with geniposide or both geniposide and formaldehyde for 24 h, followed by measurement of cell vitality ( B ). Gp, geniposide. Data are expressed as the mean ± SD from three independent experiments. *P < 0.05, vs. the group treated with formaldehyde alone.