hrp0092p1-164 | Adrenals and HPA Axis (1) | ESPE2019

The Urinary Steroid Signature of Premature Adrenarche

Janner Marco , Sommer Grit , Groessl Michael , Flück Christa

Background: Adrenarche describes the developmental event of the human adrenal cortex when the zona reticularis increases the synthesis of C19 steroids (DHEA/-S) markedly at around 6-8 years of age. Early appearance of this event is called premature adrenarche (PA) and has been associated with adverse outcomes including polycystic ovary syndrome and metabolic syndrome. Recently novel biosynthetic pathways of androgen production have been revealed, but their rol...

hrp0097p1-280 | Fetal, Neonatal Endocrinology and Metabolism | ESPE2023

The Metabolism of 11-Oxy Androgens by Fetal CYP3A7 and CYP3A4 is Less Efficient Compared to Classical Androgens

du Toit Therina , E Flück Christa , V Pandey Amit , Groessl Michael

Steroidogenic enzyme expression in the fetal adrenal and the placenta hints at the production and metabolism of adrenal-derived 11-oxy androgens (11OxyAs) in the fetal-placental unit. Thus, 11OxyAs are present in placental tissue, fetal cord blood and neonatal serum, and could have a particular role during fetal development. The metabolism of the 11OxyAs in the fetal unit, therefore, presents as a focal point of investigation. Adrenal androgens are primarily metabolized by the...

hrp0094p2-2 | Adrenals and HPA Axis | ESPE2021

How do urine steroid metabolites of spot samples correlate with 24 hour urine specimens in children with congenital adrenal hyperplasia?

Sommer Grit , Abawi Ozair , Groessl Michael , Halbsguth Ulrike , Charmandari Evangelia , Akker Erika L.T. van den , Fluck Christa E. ,

Introduction: Steroid profiling in children with congenital adrenal hyperplasia (CAH) is used to monitor the balance between androgen and cortisol metabolites and to decide on the optimal glucocorticoid dosage. Twenty-four hour collection is the gold standard for measurement of steroid metabolites in urine, because steroid production follows a circadian rhythm and is influenced by short-term stress and steroid drugs. For some children, e.g. those who were diap...