Figure 4

Effects of cadmium on ATP and NAD+ contents in NRK-52E and primary rPT cells. (A) Effects of cadmium on the ATP content in NRK-52E and primary rPT cells. With the increase of Cd concentration and the prolongation of exposure time the contents of ATP presents decreased trend. (B) Effects of cadmium on the NAD+ content in NRK-52E and primary rPT cells. With the increase of Cd concentration and the prolongation of exposure time the contents of NAD+ presents decreased trend. Data are expressed as mean ± SD (n = 3). *P < 0.05; **P < 0.01; #P < 0.05; ##P < 0.01 vs. the control group by one-way ANOVA.