Images of control group (a), low Cd group (b), high Cd group (c) at 2 weeks of intervention were obtained. Images of control group (d), low Cd group (e), high Cd group (f) at 4 weeks, and Images of control group (g), low Cd group (h), high Cd group (i) at 8 weeks. Control group images showing the normal glomeruli (G) and renal tubules (T) structures. Low Cd group images showing inflammatory cell infiltration (I), tubular cell necrosis (N), tubular vacuolization (V) (arrow), and focal hemorrhage (H). High Cd group images showing a significant reduction in tubular cell necrosis and protein cast formation (arrow) compared with the control group.