hrp0097p1-400 | Adrenals and HPA Axis | ESPE2023

11-oxygenated androgens as biomarkers in congenital adrenal hyperplasia: reference intervals for children

P.H. Adriaansen Bas , oude-Alink Sandra , W. Swinkels Dorine , A.M. Schröder Mariska , N. Span Paul , C.G.J. Sweep Fred , L. Claahsen - van der Grinten Hedi , E. van Herwaarden Antonius

Background: Patients with congenital adrenal hyperplasia (CAH) might suffer from hyperandrogenism. For diagnosing and treatment monitoring, usually levels of androstenedione (A4) and testosterone (T) are measured in blood. More recently, adrenal-specific 11-oxygenated androgens such as 11- hydroxyandrostenedione (11OHA4), 11-ketoandrostenedione (11KA4), 11-hydroxytestosterone (11OHT), and 11-ketotestosterone (11KT) were introduced as promising biomarkers, but ...

hrp0098fc8.5 | Adrenals and HPA Axis 2 | ESPE2024

Free cortisol and free 21-deoxycortisol in the clinical evaluation of adrenal insufficiency in congenital adrenal hyperplasia

P.H. Adriaansen Bas , Utari Agustini , J. Olthaar Andre , C.B.M. van der Steen Rob , J. Pijnenburg-Kleizen Karijn , Berkenbosch Lizanne , N. Span Paul , C.G.J. Sweep Fred , L. Claahsen-van der Grinten Hedi , E. van Herwaarden Antonius

Background: Some patients with classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21OHD) survive without glucocorticoid treatment, despite low total cortisol levels. This may be caused by accumulating precursor steroids such as 21-deoxycortisol (21DF), which could contribute to the glucocorticoid activity. In addition, these precursor steroids may decrease the cortisol-protein binding, thereby increasing the free (biologically activ...