HepG2 cells were acutely-treated
with 0.1, 0.5, or 1.0 μMCd for 24 h; or chronically-treated with 0.01, 0.05, or 0.1 μMCd for three weeks and gene
expression analysis was performed using Affymetrix GeneChip® Human Gene 1.0 ST Arrays. Acute and chronic
exposures significantly altered the expression of 333 and 181 genes, respectively.