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In males, a type of myopathy can result from androgen deficiency known as testosterone deficiency myopathy or (hypogonadotropic) hypogonadism with myopathy. Signs and symptoms include elevated serum CK , symmetrical muscle wasting and muscle weakness (predominantly proximal ), a burning sensation in the feet at night, waddling gait , and ...
As of 2016, the International Society for the Study of the Aging Male defines late-onset hypogonadism as a series of symptoms in older adults related to testosterone deficiency that combines features of both primary and secondary hypogonadism; the European Male Aging Study (a prospective study of ~3000 men) [10] defined the condition by the presence of at least three sexual symptoms (e.g ...
Some men with normal total testosterone have low free or bioavailable testosterone levels which could still account for their symptoms. Men with low serum testosterone levels should have other hormones checked, particularly luteinizing hormone to help determine why their testosterone levels are low and help choose the most appropriate treatment ...
Mild androgen insensitivity syndrome (MAIS) is an intersex variation that results in a mild impairment of the cell's ability to respond to androgens. [1] [2] [3] The degree of impairment is sufficient to impair spermatogenesis and / or the development of secondary sexual characteristics at puberty in males, but does not affect genital differentiation or development.
Testosterone is the primary male sex hormone and androgen in males. [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Only certain organs in the body, such as the gonads and the adrenal glands, produce the androgen testosterone. Testosterone is converted into dihydrotestosterone, a chemically similar androgen, in cells containing the enzyme 5-alpha reductase. Both androgens exert their influence through binding with the androgen receptor.
The magnitude of the testosterone increase can help differentiate between androgen resistance and gonadal dysgenesis, as does evidence of a uterus on ultrasound examination. [1] Testicular function can also be assessed by measuring serum anti-Müllerian hormone levels, which in turn can further differentiate PAIS from gonadal dysgenesis and ...
Complete androgen insensitivity syndrome (CAIS) is an AIS condition that results in the complete inability of the cell to respond to androgens. [1] [2] [3] As such, the insensitivity to androgens is only clinically significant when it occurs in individuals who are exposed to significant amounts of testosterone at some point in their lives. [1]
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