androgen

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androgen

(ăn`drəjən): see testosteronetestosterone
, principal androgen, or male sex hormone. One of the group of compounds known as anabolic steroids, testosterone is secreted by the testes (see testis) but is also synthesized in small quantities in the ovaries, cortices of the adrenal glands, and placenta, usually
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.

Androgen

One of a class of steroid hormones. Androgens play a major role in the development and maintenance of masculine secondary sexual characters, for example, the seminal vesicle and prostate gland of the male mammal, and the comb, wattles, and spur of the male fowl. They also influence certain other secondary sexual characters, such as hair growth pattern and voice quality in humans. In the fowl, they affect the pattern and seasonal coloration of its feathers, as well as crowing. In addition, androgens affect nitrogen metabolism (anabolic). Androgens are produced in the testis, ovary, adrenal, and most likely, in the placenta. A small portion of the androgen is from corticoids, or adrenal cortex steroids, and from other C21 steroids, such as progesterone. See Hormone, Ovary, Progesterone, Steroid, Testis

androgen

[′an·drə·jən]
(biochemistry)
A class of steroid hormones produced in the testis and adrenal cortex which act to regulate masculine secondary sexual characteristics.
References in periodicals archive ?
Regardless of the patient's BMI, those who present with symptoms of PCOS, including oligo- or amenorrhea, infertility, acne, hirsutism, or ovarian cysts, should receive a thorough workup including evaluation of ovarian and adrenal androgen hormones in addition to an assessment of insulin utility.
Adrenal androgen excess in hyperandrogenism: relation to age and body mass.
These increased concentrations of progesterone and 17-hydroxyprogesterone (17OHP) are shunted into the adrenal androgen pathway and lead to increased concentrations of dehydroepiandrosterone and androstenedione, which are then peripherally converted to testosterone.
Monitoring of Glucocorticoid Replacement and Adrenal Androgen Suppression
In contrast, the concentrations of these adrenal androgens are increased in polycystic ovarian syndrome (10), a disorder associated with increased insulin resistance (11 ).
Aromatase is an enzyme present in peripheral tissues such as fat, which converts adrenal androgens into oestrogen.
In postmenopausal women, the primary source of estrogen is from fat, liver, muscle, and breast tissue through a process that turns adrenal androgens into estrogen, which stimulates the growth of certain hormone- dependent cancer cells.
The primary source of estrogen in postmenopausal women is from fat, liver, muscle, and breast tissue, through a process that turns adrenal androgens into estrogen, which stimulates the growth of certain hormone-dependent cancer cells.
Femara blocks the enzyme aromatase from converting adrenal androgens (primarily androstenedione and testosterone) to estrogen in peripheral tissues such as fat, liver, muscle, breast, and in the tumor itself.
Gonadal and adrenal androgen deficiencies as independent predictors of increased cardiovascular mortality in men with type II diabetes mellitus and stable coronary artery disease.