ESPE Abstracts

Background: Obesity is highly prevalent worldwide, particularly in the MENA region. Whilst simple obesity has a variable genetic and environmental basis, syndromic and non-syndromic monogenic obesity has a strong genetic component. Melanocortin 4 receptor (MC4R) mutations are the commonest cause of monogenic obesity. MC4R also regulates neuropathic pain pathways via JNK signaling after nerve injury.Methods: Five children...

Maturity onset diabetes of the young (MODY) is a group of inherited disorders with a varying degree of severity, caused by variants in one of several genes (most common genes are: HNF1A, CGK, HNF4A, HNF1B), The majority of cases have impaired insulin secretion. Patients tend to present with hyperglycemia prior to age 25 years, but can present later in life. There is usually family history of diabetes. MODY accounts for 1-3% of all cases of diabetes. The GCK gene has been assoc...

Pediatric severe obesity is a major threat to health and longevity. Around 7% of children worldwide have early onset severe obesity before the age of 7. Pediatric obesity is caused by an interplay of multiple factors: lifestyle, environmental, sociocultural, psychological, biological and genetic factors. Endocrine, monogenetic or syndromal causes are rare, but currently underdiagnosed and important to identify for the need of specific treatment. Cardiovascular risk factors and...

Introduction: Osteoporosis is medical condition commonly associated with immobilization in children, which can lead to a vicious cycle of disability, worsening osteoporosis, and recurrent fractures. Currently, bisphosphonates are widely used as a standard therapy in children with osteoporosis, but there are limited data on efficacy according to its dosage and duration. We aimed to evaluate efficacy of bisphosphonate treatment according to the dosage and durati...

Background: Osteogenesis imperfecta / Ehlers–Danlos (OI/EDS) overlap syndrome is a rare and recently described disorder of connective tissue, characterized by mutation of COL1A1 (17q21.33) or COL1A2 (7q21.3) genes, involved in alpha-1 and alpha-2 chains of type 1 collagen synthesis. Patients with OI/EDS overlap syndrome could show a phenotype characterized by features of both osteogenesis imperfecta (bone fragility, long bone fractures, blue sclerae, sho...

Background and methods: Sellar and suprasellar tuberculomas are extremely rare in children and most often patients present with headache, vomiting, visual disturbances, and hypofunction of the pituitary gland. Here, we report a girl with hypothalamic obesity, that recovers after antituberculosis treatment.Findings: An 11-year old girl presented with headache, fever and anorexia that progressively evolved into an encephal...

A worldwide increase in pediatric thyroid cancers incidence over the years has been observed. Although pediatric thyroid cancers tend to have a more aggressive course compared to adults, the survival rate is better. In this study, we aimed to examine the demographic, clinical, pathological, and laboratory characteristics, prognostic and risk factors of children with thyroid cancer.Methods: We retrospectively analyzed 39 children with thy...

Introduction: Isodicentric Y chromosome[idic(Y)] is one of the most common structural abnormalities of the Y chromosome and has been observed in patients with disorders of sexual development. Most idic(Y) chromosomes are found in mosaic form with a 45, X cell line.Methods: The aim of this study was to investigate the genotype and phenotype variability of patients with idic(Y). The clinical data from five patients was ext...

Background and Aim: Germline mutations in the tumor suppressor gene PTEN cause PTEN Hamartoma Tumor Syndrome (PHTS). Pediatric patients frequently develop lipomas. PTEN antagonizes the growth promoting PI3K/AKT/mTOR pathway. There is no current treatment option except surgery. Treatment attempts with the mTORC1 inhibitor Rapamycin could not reverse lipoma growth. Recently, lipomas associated with a related syndrome caused by mosaic activating PI3K mutations (P...

Introduction: Recently novel approaches, through implementation of next-generation sequencing (NGS) in clinical practice for genetic evaluation of idiopathic short stature, has permitted to identify new variants of genes which modulate function of growth plate, including heterozygous mutations of the aggrecan gene. Aggrecan, a large chondroitin sulfated proteoglycan, is a major structural component of the extracellular matrix of cartilage, including growth pla...