Male sex hormones androgens

Sharpe suggested that DDE (which inhibits male sex hormones—androgens—and is an antiandrogen ) may play a role in the hypothesized increases in diseases or problems in the male reproductive tract35 However, breast-milk levels of DDE (a commonly used measure for DDE exposures) are comparable in all four Scandinavian countries and therefore do not correlate with... 

The synthetic substances related to the male sex hormones (androgens) are called anabolic steroids . The principal effects of these substances are to promote the growth of skeletal muscle (anabolic effects) and the development of male sexual characteristics (androgenic effects). 

The testes in males perform two functions One is to produce sperm the other is to produce male sex hormones (androgens), the most important of which is testosterone. Testosterone promotes the normal growth of the male genital organs and aids in the development of secondary sex characteristics. 

There are four main types of steroid hormone (i) mineralocorticoids, (ii) glucocorticoids, (iii) the male sex hormones (androgens), and (iv) the female sex hormones (oestrogens) (Fig. 43.1). NB Androstenedione is the precursor of both the androgens and oestrogens. Indeed, a wit once noted that the only difference between Romeo and Juliet was the ketone group on the 3-carbon atom and the methyl group on carbon 10 of the steroid nucleus. 

These include the female sex hormones (oestrogens), the male sex hormones (androgens) and progesterone, as well as cortisol, aldosterone and corticosterone, which are produced in the adrenal cortex. The adrenal hormones have an important role in the control of glucose and fat metabolism. 

Male Sex Hormones (androgenic hormones). The true testicular hormone is testosterone (A -androstene-17/3-ol-3-one), formed by the interstitial cells of the testicular tissue from 17-hydroxyprogesterone (cf. Chapt. XIV-6). 

Sex Hormones Testosterone and androsterone are the two most important male sex hormones, or androgens. Androgens are responsible for the development of male secondary sex characteristics during puberty and for promoting tissue and muscle growth. Both are synthesized in the testes from cholesterol. Androstenedione is another minor hormone that has received particular attention because of its use by prominent athletes. 

Androgens, represented by testosterone, are male sex hormones involved in reproduction, behavior, and bone and muscle growth. 

Androgens are male sex hormones testosterone and dihydrotestosterone are good examples ... 

Sex hormones control tissue growth and reproduction. Male sex hormones are testosterone and Sa-dibydrotestosterone, also known as androgens, which are secreted by the testes. The primary male hormone, testosterone, is responsible for the development of secondary sex characteristics during puberty. They also promote muscle growth. The two most important female sex hormones are oestradiol and oestrone, also known as oestrogem estrogens). They are responsible for the development of female secondary sex characteristics. 

Liver tumors have been directly attributed to exposure to some toxicants. Androgens (associated with male sex hormones), aflatoxins (from fungi, see Chapter 19), arsenic, and thorium dioxide (administered as a suspension to many patients between 1920 and 1950 as a radioactive contrast agent for diagnostic purposes) are known to cause liver cancer. 

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