Journalartikel
Autorenliste: Shi, Lijie; Wudy, Stefan A.; Maser-Gluth, Christiane; Hartmann, Michaela F.; Remer, Thomas
Jahr der Veröffentlichung: 2011
Seiten: 140-144
Zeitschrift: Steroids
Bandnummer: 76
Heftnummer: 1-2
ISSN: 0039-128X
eISSN: 1878-5867
DOI Link: https://doi.org/10.1016/j.steroids.2010.10.004
Verlag: Elsevier
Abstract:
Urine volume should be considered as a confounder when using urinary free cortisol (UFF) and cortisone (UFE) to assess glucocorticoid (GC) status. We aimed to examine whether adrenal androgen (AA) metabolites may be also affected by urine volume in healthy children. To compare the flow dependence of GC and AA metabolites, specific GC metabolites were examined. In 24-h urine samples of 120 (60 boys) healthy children (4-10 yr), steroid profiles were determined by GC-MS analysis, UFF and UFE by radioimmunoassay. To assess daily AA and GC secretion rates. 7 quantitatively most important AA (Sigma C19) and GC (Sigma C21) metabolites were summed. Sum of DHEA and its 16 alpha-hydroxylated metabolites were denoted as DHEA&M. Association of urine volume with AA (Sigma C19, DHEA&M, DHEA, 16 alpha-hydroxy-DHEA, 3 beta,16 alpha,17 beta-androstenetriol) and GC (Sigma C21, UFF, UFE, 6 beta-hydroxycortisol, 20 alpha-dihydrocortisol) were examined in linear regression models. Among the examined AA metabolites, 16 alpha-hydroxy-DHEA (beta = 0.56, p < 0.0001) and DHEA (beta = 0.43, p = 0.05) showed relatively strong association with urine volume. A trend was seen for Sigma C19 (beta = 0.23, p = 0.08), but not for DHEA&M (p > 0.1). Regarding GC metabolites, urine volume showed a stronger association with cortisol's direct metabolites, i.e., cortisone. 6 beta-hydroxycortisol and 20 alpha-dihydrocortisol (beta = 0.4-0.6. p < 0.01) than with cortisol itself (beta = 0.28, p < 0.05). Sigma C21 was not associated with urine volume. In conclusion, like UFF and UFE, renal excretion of DHEA, 16 alpha-hydroxy-DHEA, 6 beta-hydroxycortisol, and 20 alpha-dihydrocortisol may also depend on urine volume. The intrarenal production of the latter three and cortisone might explain their relative strong water-flow-dependency. Total AA or GC secretion marker appears not to be relevantly confounded by urine volume. (C) 2010 Elsevier Inc. All rights reserved.
Zitierstile
Harvard-Zitierstil: Shi, L., Wudy, S., Maser-Gluth, C., Hartmann, M. and Remer, T. (2011) Urine volume dependency of specific dehydroepiandrosterone (DHEA) and cortisol metabolites in healthy children, Steroids, 76(1-2), pp. 140-144. https://doi.org/10.1016/j.steroids.2010.10.004
APA-Zitierstil: Shi, L., Wudy, S., Maser-Gluth, C., Hartmann, M., & Remer, T. (2011). Urine volume dependency of specific dehydroepiandrosterone (DHEA) and cortisol metabolites in healthy children. Steroids. 76(1-2), 140-144. https://doi.org/10.1016/j.steroids.2010.10.004
Schlagwörter
11-BETA-HYDROXYSTEROID DEHYDROGENASE TYPE-2; Adrenal androgen; BLOOD-PRESSURE; CREATININE; Dehydroepiandrosterone; Urine volume
