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• W2776009704 abstract "Adrenal androgen excess is the hallmark of classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency. Recently, 11-oxygenated C19 steroids, a class of highly active adrenal-derived androgens, have been described in patients with CAH. The aim of our study was to elucidate the significance of 11-oxygenated androgens in children with CAH. We retrospectively analysed 190 daily urinary excretion rates of glucocorticoid-, 17α-hydroxyprogesterone (17OHP)-, and androgen metabolites determined by gas chromatography-mass spectrometry of 99 children aged 3.0-10.9 years with classic CAH on hydrocortisone and fludrocortisone treatment. Daily urinary steroid metabolite excretions were transformed into z-scores using references of healthy children. Androgen metabolite z-scores were separately calculated for androsterone (AN), the major urinary metabolite of androstenedione (A4), testosterone and 5α-dihydrotestosterone, for urinary metabolites of dehydroepiandrosterone (DHEA), and for 11β-hydroxyandrosterone (11OHAN), the major urinary metabolite of adrenal-derived 11-oxygenated androgens. Multivariate regression analysis was applied to analyse the precursors of 11OHAN synthesis. 11OHAN, cortisol-, and 17OHP metabolite z-scores were elevated in treated children with CAH, whereas AN- and DHEA metabolite z-scores were normalized or suppressed. Multivariate regression analysis revealed that 11OHAN excretion was strongest associated with 21-deoxycortisol (β = 0.379; P =.0006), followed by A4 (β = 0.280; P = .0008)) and 17OHP (β = 0.243; P = .04) metabolite excretion. Androgen excess in treated children with CAH is solely due to elevated 11-oxygenated androgens that derive in addition to the known conversion from A4 also by direct conversion from 21-deoxycortisol. 11-Oxygenated androgens may represent better biomarkers of adrenal androgen status and treatment response than conventional androgens." @default.
• W2776009704 created "2018-01-05" @default.
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• W2776009704 date "2018-04-01" @default.
• W2776009704 modified "2023-10-01" @default.
• W2776009704 title "Androgen excess is due to elevated 11-oxygenated androgens in treated children with congenital adrenal hyperplasia" @default.
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• W2776009704 doi "https://doi.org/10.1016/j.jsbmb.2017.12.016" @default.
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