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Aromatase (EC 1.14.14.14), also called estrogen synthetase or estrogen synthase, is an enzyme responsible for a key step in the biosynthesis of estrogens. It is CYP19A1 , a member of the cytochrome P450 superfamily, which are monooxygenases that catalyze many reactions involved in steroidogenesis .
A portion of the androstenedione is converted to testosterone, which in turn undergoes conversion to estradiol by aromatase. In an alternative pathway, androstenedione is aromatized to estrone, which is subsequently converted to estradiol via 17β-hydroxysteroid dehydrogenase (17β-HSD). [50]
Conversely, “with too much testosterone, women often have acne, too much hair on the body, hair loss on the head, high blood pressure, elevated cholesterol, skipped cycles, or problems ...
Fat cells produce an enzyme called aromatase, which converts testosterone to estrogen— and an imbalance in your testosterone and estrogen levels can increase body fat. High aromatase and ...
Androstenedione is the common precursor of the androgen and estrogen sex hormones. [7] Androstenedione can be biosynthesized in one of two ways. The primary pathway involves conversion of 17α-hydroxypregnenolone to DHEA by way of 17,20-lyase, with subsequent conversion of DHEA to androstenedione via the enzyme 3β-hydroxysteroid dehydrogenase.
Testosterone is a hormone that’s produced in male reproductive organs (and the ovaries in women, though this article doesn't dive into all that since it’s not linked to body weight in women).
Inhibition of 5α-reductase results in decreased conversion of testosterone to DHT, leading to increased testosterone and estradiol. Other enzymes compensate to a degree for the absent conversion, specifically with local expression at the skin of reductive 17β-hydroxysteroid dehydrogenase , oxidative 3α-hydroxysteroid dehydrogenase , and 3β ...
[10] [15] The beneficial action of testosterone in elevating the HDL fraction can be attributed to its conversion via aromatase activity in adipose tissue into 17-beta estradiol and its subsequent activation of estrogen alpha-receptors; thus, more testosterone leads to greater conversion into estrogen and thus a healthier lipid profile. [10]
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