Fig. 6

Photomicrograph of GR immunostaining in the sheep ovary during the follicular phase. A Showing slight GR immunostaining in the ovarian surface epithelium (S), negative GR immunostaining in the primordial follicles (PF) and growing follicle (GF). B Showing slight GR immunostaining in the stroma cells (St) and oocyte of the primary follicle (arrow). C Showing moderate GR immunostaining in granulosa cells (G) and negative GR immunostaining in oocyte (O) of the antral follicles. D Showing negative GR immunostaining in the granulosa cells (G), theca interna cells (TI) and theca externa cells of mature graafian follicles. E Showing moderate GR immunostaining in the apoptotic granulosa cells (arrows) and negative GR immunostaining in the theca interna cells (TI) and theca externa cells of atretic antral follicles. F Showing strong GR immunostaining in the lutein cells (arrows) of the regressed corpus luteum. Original magnification; A-F: X400, scale bar = 50 µm