Figure 3: immunohistochemical expression of AHR in ventricular myocardium (3A): showing weak cytoplasmic reaction (arrows) in cardiomyocyte of control subgroup. Strong brown granular cytoplasmic reaction (arrows) in (3B) and nuclear reaction (double arrows) in (3C) are seen in most of cardiomyocyte of dioxins treated group. (3D): showing strong cytoplasmic reaction in some of cardiomyocyte of dioxins+vitamins supplemented group (scale bar=50 μm, boxed area×3times).