Androgen Receptors Expression in Pituitary of Male Viscacha in relation to Growth and Reproductive Cycle

Figure 1

(A) Rat prostate, a positive control of immunoperoxidase staining with anti-AR (N-20) without hematoxylin staining. Insets: immunolabeled nuclei of epithelial cells (arrows) without (left) and with (right) counterstained hematoxylin. (B) Pituitary of viscacha, a negative control of immunohistochemistry counterstaining with hematoxylin. ((C), (D)) Pituitary of viscacha, staining with anti-AR (N-20) without hematoxylin staining (C) and counterstaining with hematoxylin (D). ARn-ir cells (arrows). Blood vessels, v; follicular structures, f. (A) Scale bar: 100 μm. (B), (C), and (D) and insets scale bar: 25 μm.