ESPE Abstracts

In XLH, excess fibroblast growth factor 23 (FGF23) causes hypophosphatemia and consequent rickets, skeletal deformities, and growth impairment. The efficacy and safety of burosumab, a fully human monoclonal antibody against FGF23, was evaluated in two Phase 2 trials in children with XLH. In CL201, 52 children with XLH (5–12 years old, Tanner ≤2) were randomized 1:1 to receive subcutaneous burosumab every 2 (Q2W) or 4 (Q4W) weeks, with doses titrated up to 2 mg/kg to...

Background: Growth during infancy is a continuation of the rapid fetal growth and its regulation is complex and multifactorial. It is well-established that insulin-like growth factor-I (IGF-I) and its regulators (e.g. IGF binding proteins (IGFBP-3) and pregnancy-associated plasma protein-A2 (PAPP-A2)) are important for prenatal and postnatal growth; however, their significance for growth during infancy is not fully explored.Aims: The aim...

Background: Glucocorticoids regulate a broad spectrum of physiologic functions essential for life and exert their actions through their ubiquitously expressed glucocorticoid receptor (GR). The GR interacts with several molecules, including the non-coding RNA growth arrest-specific 5 (Gas5), which decreases the transcriptional activity of the GR by preventing its binding to DNA, and reduces tissue sensitivity to glucocorticoids.Objective and Hypotheses: T...

Background: Consultations for infantile hypercalcaemia have increased at Sydney Children’s Hospital since guidelines for vitamin D3 supplementation during pregnancy were introduced in 2006. Recent nationwide shortages of low-calcium formula (LCF) suggest this problem may be widespread.Aim: To determine if infantile hypercalcaemia is occurring more commonly, identify potential aetiologies and clinical significance.Me...

Introduction: Published studies on pubertal growth of SGA patients on GH therapy are scarce. An earlier and shorter duration of puberty has been described. Treatment optimization may be necessary and also know their influence on adult height.Objetives: Analyse the evolution of height durig puberty in SGA patients treated with GH. Asses the age of onset of puberty and its relationship to adult and target height.Methods: Retrospectiv...

Background: Little data exist regarding the hypothalamic-pituitary-adrenal (HPA) axis activation and the interplay between the HPA axis and markers of pro- and anti-oxidation in children, following an acute aerobic exercise bout in children.Objective and hypotheses: To investigate the changes of HPA axis hormones following an acute bout of aerobic exercise and their respective association with markers of pro- and anti- oxidation in normal weight and obes...

Background: The PAX8 gene (Paired box gene 8) is located on the long arm of chromosome 2 (2q12–q14), contains 12 exons and encodes a similarly named PAX8 protein. This protein is a transcription factor which in the thyroid gland is essential for the follicular cells formation and takes part in the expression of the thyroid-specific genes (TG, TPO, and SLC5A5). Variants in the gene have been previously associated with autosomal dominant thyroid dysgenesis...

Childhood obesity became a global plague: 9% of Italian children (17% of USA children) is obese and 21% is overweight. Nowadays only a small number of obese children undergoes genetic analysis, usually when obesity is associated with dysmorphic features. Our purpose was to identify genomic rearrangement causing obesity: we analyzed the DNA of 52 children by array-CGH (platform CytoScan-HD, Affymetrix). Patients included in our study were 29 males (55,8%) and 23...

Objective: To study structure disorders of sex development (DSD) 46,XY by one center.Subjects and Methods: It was included 60 patients with diagnosis DSD 46,XY at birth to 18 years. For all patients was conducted structural evaluation of the external (by External Masculinization Score, EMS, 0-12) and internal genitalia (by pelvic ultrasound, n=60, laparoscopy, n=20), hormonal research (testoster...

Background: To date at least 30 genes are known to be associated with idiopathic hypogonadotropic hypogonadism (IHH). Analysis of all these gene candidates by Sanger sequencing would be expensive, labour-intensive and time-consuming. Recent introduction of next-generation sequencing (NGS) enables simultaneous analysis of multiple gene targets making it an attractive approach in such conditions as IHHObjective and hypotheses: To study the spectrum of mole...