Influence of Dexamethasone on Some Reproductive Hormones and Uterine Progesterone Receptor Localization in Pregnant Yankasa Sheep in Semiarid Zones of Nigeria

Figure 4

Progesterone receptor staining of Yankasa sheep uteri at day 78 of gestation. Arrowheads indicate moderate positive progesterone receptor (PR) staining (2+) and eosinophilic cells, while black arrow indicates strong positive progesterone receptor (PR) staining (3+). White arrows indicate very strong positive staining (4+) for progesterone receptors (PR) and endometrial lymphocytes. Figure 4(a) (control sheep): progesterone receptor staining showed moderate positive staining (2+) in all parts of the uterus (IHC ×100). Figure 4(b) (dexamethasone treated sheep): progesterone receptor staining pattern showed moderate positive staining (2+) in the luminal epithelia (LE) and myometrial cells (ME), strong positive staining (3+) in the stromal epithelial (S), and very strong positive staining (4+) in the glandular epithelia cells (GE) (IHC ×100). Scale bars represent 50 μm.

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