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Review Article

PAFMJ. 2016; 66(2): 290-293


ROLE OF ANTIPROGESTERONE ON THE ENDOMETRIUM RECEPTIVITY- A REVIEW

Khadija Qamar, Rubina Mushtaq*, Humaira Arshad.

Abstract
Estrogen produces proliferation in the functional layer of the endometrium and the differentiation in the ciliated and secretory epithelium of the uterine tube. Progesterone produces differentiation in the functional layer of the endometrium and the produces mitosis in the stroma of the endometrium. These effects of the estrogen and progesterone are mediated through interactions with specific intracellular receptors1. Mifepristone (RU 486) is a steroid hormone with a chemical structure similar to natural hormone progesterone. It has been proposed that antiprogestins may be useful in the treatment of endometrial inflammatory disease and carcinoma +breast because these conditions are dependent on the ovarian receptors and have receptors for estrogen and progesterone. Anti-progesterone compounds can antagonize the biological action of the progesterone or inhibit the synthesis of progesterone. Mifepristone, (RU 486) has been found to be the most effective and is now used in practice.

Key words: Antiprogestins, Endometrial changes, Uterine bleeding.



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