Fig. 8. DNA migration (mm) in the lung tissues evaluated by Comet assay, in Wistar rats intratracheally instilled with either saline (control) or cerium oxide nanoparticles (CeO₂ NPs) with or without cisplatin (CP) administration. Data are mean ± SEM. Saline (n=5), CeO₂ NPs (n=4), CP+saline (n=5) and CP+ CeO₂ NPs (n=6).