Figure 6. Pb elevated the phosphorylation of CaMKII in rPT cells.

Cells were treated with Pb(NO₃)₂ (0.25, 0.5 and 1 µM) for 12 h, then collected to analyze the protein levels of t-CaMKII (A) and p-CaMKII (B). Upper panel representative western blot image; lower panel quantitative analysis (mean ± SEM, n = 4). ^**P < 0.01.