androsterone


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androsterone

 [an-dros´ter-ōn]
an androgenic hormone, C19H30O2, excreted in the urine of both men and women. When injected intramuscularly, it counteracts the effects of castration.

an·dros·ter·one

(an-dros'ter-ōn),
A steroid metabolite, found in male urine, having weak androgenic potency. Formed in testes from progesterone.

androsterone

/an·dros·ter·one/ (an-dros´ter-ōn) an androgen degradation product that in some species exerts weak androgenlike effects.

androsterone

(ăn-drŏs′tə-rōn′)
n.
A steroid hormone, C19H30O2, that is a breakdown product of testosterone.

androsterone

[andros′tərōn]
Etymology: Gk, andros + stereos, solid
a male sex hormone, originally believed to be the principal male sex hormone. It is used less frequently in therapy since the discovery of testosterone.

androsterone

A male sex hormone which is derived from progesterone. Androsterone has 15% the strength of testosterone; it is found in male and female plasma and urine.

androsterone

Endocrinology A ♂ sex hormone, derived from progesterone, which has 15% the strength of testosterone; it is found in ♂ and ♀ plasma and urine

an·dros·ter·one

(an-dros'tĕr-ōn)
A steroid metabolite, found in male urine, having weak androgenic potency. Formed in testes from progesterone.

androsterone

A metabolite of the male sex hormone TESTOSTERONE, excreted in urine of both men and women.

androsterone

an androgenic hormone, C19H30O2, excreted in the urine. When injected intramuscularly, it counteracts the effects of castration.
References in periodicals archive ?
If an athlete takes synthetic testosterone or a steroid that is metabolized to androsterone and etiocholanolone, the [[delta].
A rapid screening assay for measuring urinary androsterone and etiocholanolone [[delta].
13] values for epitestosterone, etiocholanolone acetate, and androsterone acetate in 10 urine samples obtained from athletes whose drug-taking behavior was unknown.
Quantification of steroids (including 17[alpha]OHP) in both fractions of plasma was performed as for the blood spots samples, with modifications that included a water calibration mixture containing 5 [micro]g/L 17[alpha]OHP, 12 [micro]g/L testosterone, 200 [micro]g/L androsterone and 200 [micro]g/L etiocholanolone, and monitoring the tris-TMS derivative of 17[alpha]OHP in the nonconjugated fraction extracted from plasma.
The mass spectrometer was operated in selected-ion monitoring acquisition mode with one or more ions selected for each substance (m/z 432, 434, and 434 for bis-TMS derivatives of testosterone, androsterone and etiocholanolone, respectively; m/z 435 and 438 for bis-TMS derivatives of T-[D.
Given the relevance of glucuronidation of testosterone, androsterone, and etiocholanolone, analysis with and without hydrolysis of blood and plasma samples appears necessary for obtaining the proper steroid profile after exogenous testosterone intake, especially after oral administration.
Some other possibilities for his abnormal kinetic results could be a faster metabolism of testosterone to androsterone and etiocholanolone, a specific enzyme deficiency for testosterone glucuronidation in splanchnic organs, or again, a different balance between the portal vein vs lymphatic absorption, as mentioned above.
The binding of androsterone sulfate, etiocholanolone sulfate, and dehydroepiandrosterone sulfate by human plasma protein.
A single point calibration was made for DHEA, androsterone, etiocholanolone, 11[beta]-hydroxy-androsterone, 11[beta]-hydroxyetiocholanolone, 5-androsten-3,17-diol, 5a-androstan-3a,17[beta]-diol, and 5[beta]-androstan-3a,17[beta]-diol, using methyltestosterone as the internal standards.
As summarized in Table 1, the excretion rates of androsterone and etiocholanolone increased 50-fold.
In difficult cases, a 24-h urine may be collected; analyzed for the total amount of T, androsterone, and etiocholanolone; and the results compared with published norms [391.