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BIMM118<br />

Sex Steroids<br />

Estrogens<br />

– Estrogens induce expression of progesterone receptors<br />

– Progesterone inhibits expression of estrogen receptors<br />

– Two types of estrogen receptors => potential for selective drugs<br />

• Estradiol<br />

– Not suitable for oral administration (rapid hepatic elimination)<br />

=> stable derivatives:<br />

• Ethinylestradiol<br />

• Diethyl-Stilbestrol<br />

– Stilbene derivative

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