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1,4,6-Androstatriene-3,17-dione (ATD) is a potent irreversible aromatase inhibitor that inhibits estrogen biosynthesis by permanently binding and inactivating aromatase in adipose and peripheral tissue. [1] It is used to control estrogen synthesis. [2]
Aromatase inhibitors (AIs) are a class of drugs used in the treatment of breast cancer in postmenopausal women and in men, [1] [2] and gynecomastia in men. They may also be used off-label to reduce estrogen conversion when supplementing testosterone exogenously. They may also be used for chemoprevention in women at high risk for breast cancer.
Aromatase in fat and muscle can circulate estrogen in postmenopausal women. [12] Aromatase in highly estrogen-sensitive tissues, such as the breast, uterus, vagina, bone, and blood vessels, provides estrogen locally, so aromatase inhibitors work by reducing this estrogen production. [12]
This page was last edited on 18 September 2023, at 00:24 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Exemestane is known chemically as 6-methylideneandrosta-1,4-diene-3,17-dione. Like the aromatase inhibitors formestane and atamestane, exemestane is a steroid that is structurally similar to 4-androstenedione, the natural substrate of aromatase. It is distinguished from the natural substance only by the methylidene group in position 6 and an ...
Letrozole, sold under the brand name Femara among others, is an aromatase inhibitor medication that is used in the treatment of breast cancer for post-menopausal women. [1]It was patented in 1986 and approved for medical use in 1996. [4]