Fig. 6

Immunohistochemical detection of Nrf2 expression (x 400). (A, B) Control and vilda alone groups showed minimal immunostaining, respectively. (C) Ovaries from irradiated rats showed extensive brown immunostaining (increased cytoplasmic Nrf2). (D) Vilda co-administration resulted in a marked reduction in cytoplasmic Nrf2. (E) Quantitative image analysis for Nrf2 immunostaining was expressed as optical density (O.D.). (F) Scoring of the immunostaining considering both the staining intensity and the percentage of positive cells