ESPE Abstracts

Background and Aim: Metabolic Bone Disease of Prematurity(MBD) is a condition of reduced bone mineral content(BMC) compared to the expected for gestational age(GA). Preterm birth interrupts the physiological process of calcium(Ca) and phosphorus(P) deposition that occurs mostly in the 3rd-trimester of pregnancy, leading to an inadequate bone mineralization during intrauterine life(IUL). After birth, an insufficient intake of Ca and P carries on this alteration...

Introduction: PTH is one of the principal regulatory hormones for calcium and phosphate homeostasis. Hypoparathyroidism, caused by reduced parathyroid hormone (PTH) concentration is characterised by hypocalcemia and hyperphosphataemia. Hypoparathyroidism in children can occur either as part of a genetic syndrome, autoimmune disorder, be acquired secondarily to thyroidectomy or some destructive process of the glands. If the reason for decreased PTH concentration is unknown, it ...

Background: Until now, altered balance of Th1 and Th2 immune cells has been postulated to play an important role in the pathogenesis of autoimmune thyroid diseases (AITD). However, recent studies on thyroid diseases have suggested a new role for Th17 cells that have been classified as a new lineage, distinct from Th1, Th2 and Treg cells. Despite wide interest, the role of Th17 cells in the pathogenesis of inflammatory and autoimmune diseases is still debated.<p class="abst...

Background: Regulatory T cells (Treg) of phenotype CD4+CD25+FoxP3+ involves active suppression of excessive immune response. The population of Treg cells from patients with type 1 diabetes (DM1) have numeric and functional abnormalities. Although there are many reports of investigations on human and animal populations, the role of regulatory T cells in the development of type 1 diabetes is still unclear.Objective and hypotheses: The aim of the study is t...

Background: Autoimmune thyroid diseases are multifactorial diseases with a genetic susceptibility and environmental factors. A potential role of the protein tyrosine phosphatase non-receptor type 22 (PTPN22) gene, the interferon induced helicase domain 1 (IFIH1) gene, the TSH receptor (TSH-R) gene polymorphisms on autoimmune thyroid diseases (AITDs) in children has not been established equivocally yet.Objective and hypotheses: To estimate the association...

Background: Small for gestational age (SGA) without subsequent catch up growth is an indication for GH treatment in Europe, the US, and Korea but not in Australia. However, many SGA are likely to be included under the ‘short stature and slow growth’ (SSSG) indication. It is unknown to what extent children born SGA are included in the Australian indications or how they differ from non-SGA patients within each indication and gender.Objective and ...

Spondyloepiphyseal dysplasia tarda (SEDT) is an inherited disorder that is diagnosed in childhood or adolescence presents with disproportionate short stature and premature osteoarthritis with frequently affecting men. Here, we described a novel nonsense mutation, c.508A>T; p.Lys170Ter, in TRAPPC2 in a Turkish patient with X-linked SEDT. The patient is a 15-year-old boy from Turkish non-consanguineous parents, presented decreasing height velocity last three years and also th...

Background: Aggrecan (ACAN) is a proteoglycan found in the extracellular matrix of articular and growth plate cartilage. Animal studies have shown that mutations in the ACAN gene lead to premature hypertrophic chondrocyte maturation, causing accelerated cartilage ossification. Patients with ACAN deficiency present with dominantly inherited short stature, often with advanced skeletal maturation and premature growth cessation, as well as early-onset joint diseas...

Background and Objectives: N-terminal-pro hormone Brain Natriuretic Peptide (NT-proBNP) and hs-Troponin T (hs-TnT) are commonly used cardiac biomarkers despite lacking a deeper understanding about influencing parameters especially in the healthy pediatric population. We previously found associations between NT-proBNP and hs-TnT and a child´s age, sex, pubertal status, Body Mass Index (BMI) and serum lipid levels. Subsequently, we explored associations wi...

Background: PAPP-A2 is a metalloproteinase that specifically cleaves IGFBPs 3 and 5. Papp-a2 knock-out (KO) mice show a reduction in body size and skeletal abnormalities.Objective and hypotheses: Our objective is to report two affected families from Spain and USA. The Spanish family presents a homozygous frameshift mutation in exon 3 of the PAPP-A2 gene (c.1927_ 1928insAT, p.D643fs25X) resulting in a premature stop codon, with 2 of 4 si...