1986
DOI: 10.1002/bms.1200130802
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Determination of 5α-androstane-3α, 17β-diol and 5α-androstane-3β, 17β-diol in human plasma by selected ion monitoring

Abstract: 5 alpha-Androstane-3 alpha,17 beta-diol (3 alpha-diol) and 5 alpha-androstane-3 beta,17 beta-diol (3 beta-diol) were measured in human peripheral plasma by gas chromatography-selected ion monitoring as their t-butyl dimethylsilyl ethers. The purification of the plasma extract involved a Sep-Pak C18 cartridge and high-performance liquid chromatography. The concentrations (mean +/- SD) of the two diols in four normal males are: 213 +/- 111 pg/ml for the 3 alpha-diol and 246 +/- 133 pg/ml for the 3 beta-diol.

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Cited by 8 publications
(4 citation statements)
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“…Concerning the determination of AD plasma concen¬ trations, RIAs have been the prevailing analytical method and the only two published studies using HRGC/MS were conducted exclusively in men (4,14). Widely disparate concentrations of AD have been reported so far: in men, levels varied between 0.24 ± 0.07nmol/I (14) and 4.13 ± 0.82 nmol/1 (15).…”
Section: Discussionmentioning
confidence: 97%
See 1 more Smart Citation
“…Concerning the determination of AD plasma concen¬ trations, RIAs have been the prevailing analytical method and the only two published studies using HRGC/MS were conducted exclusively in men (4,14). Widely disparate concentrations of AD have been reported so far: in men, levels varied between 0.24 ± 0.07nmol/I (14) and 4.13 ± 0.82 nmol/1 (15).…”
Section: Discussionmentioning
confidence: 97%
“…Meanwhile, divergent plasma values for both metabolites have so far been reported in healthy females and males as well as in patients with idiopathic hirsutism (4)(5)(6)(7)(8). Furthermore, the question of which metabolite, AD or ADG, reflects androgenicity better, is still unanswered (2.…”
mentioning
confidence: 99%
“…De nombreux compétiteurs à la liaison sur la SHBG ne sont pas pris en compte dans les calculs et indices : les acides gras libres [47], 70 analogues [33], 21 stéroïdes endogènes [11] comme la dihydrotestostérone (DHT) à forte affinité [36] pour la SHBG et les 5-androstènediols dont les taux sont cinq fois supérieurs à ceux de la DHT chez la femme [15]. Les modèles de Södergard et de Kaufman-Fiers ne sont d'ailleurs que des simplifications des équations de Dunn-Rodbard [11] qui tenaient compte d'un équilibre entre 21 stéroïdes et trois protéines liantes : SHBG, albumine et CBG.…”
Section: Comparaison Des Coeffıcients De Corrélation Avec La Shbg (Nmunclassified
“…On connaît divers compétiteurs à la liaison sur la SHBG : acides gras libres [33], 70 analogues [21], 21 stéroïdes endogènes [12] comme la dihydrotestostérone (DHT) à forte affinité [30] pour la SHBG et les 5-androstènediols dont les taux sont cinq fois supérieurs à ceux de la DHT chez la femme [14].…”
Section: Introductionunclassified