eksemestan (trgovsko ime Aromasin) je zdravilo, ki se uporablja za zdravljenje raka dojke. Je član skupine zdravil, znanih kot zaviralci aromataze. Nekateri raki dojke potrebujejo estrogen za rast. Ti raki imajo estrogenske receptorje (urgentne službe), in se imenujejo ER-pozitivni. Lahko se imenujejo tudi odzivni na estrogen, hormonsko odziven,ali hormon-receptorpozitiven.Aromataza je encim, ki sintetizira estrogen. Zaviralci aromataze blokirajo sintezo estrogena. To zniža raven estrogena, in upočasni rast rakavih obolenj.
Exemestane is an oral steroidal aromatase inhibitor that is used in ER-positive breast cancer in addition to surgery and/or radiation in post-menopausal women.Aromasin is used to fight breast cancer and raise testosterone in the body.Exemestane blocks the process of aromatisation. So it lowers the amount of oestrogen in the body. In early breast cancer, taking exemestane can help to stop breast cancer coming back. In advanced breast cancer the cancer cells may grow more slowly or stop growing completely.
Exemestane is an aromatase inhibitor. This means it blocks the enzyme aromatase (found in the body's muscle, kožo, breast and fat), which is used to convert androgens (hormones produced by the adrenal glands) into estrogen. In the absence of estrogen, tumors dependent on this hormone for growth will shrink.
Exemestane carries the ability to inhibit the aromatase enzyme, which is responsible for the production or conversion of testosterone to estrogen. Aromasin has the ability to block aromatization, which in turn inhibits the production of estrogen, and thereby lowers the body’s serum estrogen levels.
