Fig. 3From: Constitutive expression of AhR and BRCA-1 promoter CpG hypermethylation as biomarkers of ERα-negative breast tumorigenesisExpression of Ahr is increased in DMBA-induced rat mammary adjacent tissues and tumors. Bars represent means ± SEM of quantitation (fold change of control) of Ahr mRNA corrected for Gapdh mRNA as internal standard in control and DMBA-induced adjacent mammary tissues and tumors from 8 animals/group (n = 8). Different letters represent statistical differences (P < 0.05)Back to article page