Figure 1.

Cytotoxic effect of cadmium chloride on human liver carcinoma (HepG₂) cells. Cells were cultured with increasing concentrations (1, 2, 3, 4, and 5 μg/mL) of cadmium chloride for 48 h as indicated in the Materials and Methods. Cell viability was determined based on the MTT assay. Each point represents a mean ± SD of three experiments with six replicates per concentration. * Significantly different (p < 0.05) from the control, according to the Dunnett’s test.