ESPE Abstracts

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...

Background: Ovarian and uterine development in relation to hormonal feedback mechanisms (E2, LH, FSH, and inhibin) has rarely been studied. Therefore, the age specific and longitudinally adequate replacement dose of estradiol to achieve normal maturation in terms of ovarian and uterine development during infancy, childhood and adolescence remains not well known. However, aromatase deficiency offers an excellent model to study the relevant estradiol dose needed to ac...

Background: Altered arterial stiffness is a recognized risk factor of poor cardiovascularhealth. Ambulatory arterial stiffness index (AASI, defined as one minus the regression slope of diastolic on systolic blood pressure values derived from a 24 h arterial blood pressure monitoring (ABPM)) is an upcoming and readily available marker of arterial stiffness. We tested the hypothesis that AASI is increased in obese children compared to healthy subjects.Meth...

Background: Altered circadian and ultradian blood pressure (BP) and heart rate (HR) rhythmicity has been described in many diseases with increased cardiovascular risk.Objective and hypotheses: We tested the hypothesis that rhythmicity in obese children is changed, compared to healthy subjects.Method: Circadian and ultradian BP and HR rhythmicity was assessed with Fourier analysis from 24-h ambulatory BP measurement (ABPM) in 75 obe...

Background: The goal of congenital hypothyroidism (CH) treatment is rapid normalization and maintenance of TSH and FT4 in the reference range. Recommended starting dose of levothyroxine (LT4) ranges from 10-15 mg/kg/d. Hyperthyroxinemia can be accepted in the context of normal TSH and LT4 should only be reduced in case of symptoms or repeatedly increased FT4. The aim of this study was to quantify duration and maximum peak of FT4 levels outside the reference range for each CH s...

Background: Steroidogenic Factor 1 (NR5A1/SF-1) is essential for the development and function of human sex and steroid organs. Variants of SF-1 lead to a broad spectrum of phenotypes including adrenal insufficiency and differences of sex development (DSD), but data on the whole picture of phenotypes in individuals with SF-1 variants are currently lacking. We aim to investigate the phenotype of individuals with SF-1 variants in a large interna...