FIGURE 2.

Cell viability on vitamin‐treated DBTRG and HK‐2 cells. (a) DBTRG cells were treated with 5 μM vitamin C or vitamin E for 96 hr. (b) HK‐2 cells were treated with 5 μM vitamin C or vitamin E for 96 hr. Cell viability was determined by MTT assay and calculated as A570 experimental group/A570 control group × 100%. Data were from four independent experiments and presented as mean ± SD