A. Comparative toxicogenomics database screen of antioxidant genes with published associations to both PCBs and Parkinson’s disease. B. qRT-PCR (mRNA), fold change of 10 μM PCB exposed astrocytes compared to vehicle (methanol) exposure. Data analyzed via Student’s t-test, represented as mean ± SEM with 3 biological replicates and was replicated in 2 to 3 independent experiments, *p = 0.02, **p = 0.008, ***p = 0.0003.