ESPE Abstracts

Background: In pediatric patients with adrenocortical tumors (ACT), morbidity and mortality rates have been extensively evaluated. However, there are almost no data on the late consequences of early exposure to high androgen levels on pubertal development and on final height (FH) in these patients.Objective: To investigate the impact of early exposure to androgen excess on gonadotropin-dependent pubertal development and on final height (...

Background: Children with Sickle Cell Disease (SCD) show endocrine complications and metabolic alterations. The physiopathology of these conditions is not completely understood: iron overload due to chronic transfusions, ischemic damage, and inflammatory state related to vaso-occlusive crises may be involved. Aims of this study were to evaluate the growth pattern and the endocrine and metabolic alterations in a cohort of children with SCD and to detect the relationship between...

Background: Primary ovarian failure (POF) is a major cause of female infertility. POF is characterized by amenorrhea, hypo-estrogenism and elevated gonadotrophin levels. In POF disorder, several genetic alterations have been described, however in most of the patients the etiology of this disorder remains unknown.Objective and hypotheses: To identify new genes implicated in the development of POF using Next-Generation Sequencing (NGS).<p class="abstex...

Introduction: Steroidogenic factor1 (SF1/NR5A1) regulates adrenal and sex development and function. SF1 mutations manifest with a broad phenotype; generally in 46,XY individuals with disorders of sex development (DSD) and in women with ovarian insufficiency. So far, no genotype–phenotype correlation has been found. We hypothesized that the broad phenotype of SF1 mutations may be due to a second hit in a gene with similar function. Liver receptor homolog-1 (LRH1/<...

Background: IGF1 resistance syndrome (IGF1RS) is characterized by intrauterine and postnatal growth deficit with normal or supranormal IGF1 levels. Additional features may include intellectual deficit, microcephaly, and dysmorphisms. IGF1RS may be caused by genomic or genetic defects affecting the IGF1R locus (15q26.3).Objective and hypotheses: Case report: a girl born at 36.5 weeks, BW 1.935 g (−3.2 SDS), length 41 cm (−4.4 SDS) and...

Background: Androgen insensitivity syndrome (AIS) is an X-linked hereditary disease with AR gene loss-of-function mutations in 46,XY patients. They undergoes poor development of secondary sex characteristics, except for breast development at puberty. AIS patients are prone to develop germ cell cancer, even though with lower incidence than in dysgenetic gonads secondary to defects in organogenesis.Case presentation: We described a 3-years-old gir...

Introduction: Thyroid dyshormonogenesis is a heterogeneous group of hereditary diseases produced by the total/partial blockage of the biochemical processes involved in thyroid-hormone synthesis and secretion. Many genes are involved in this process. PAX8 is a transcription factor essential for thyroid-gland morphogenesis and synthesis of thyroid hormones, since it activates TG, TPO and TSHR gene transcription. More than 50 PAX8</...

Background: due to its recently documented role in intercellular tight junction disassembly, zonulin has emerged as a valuable biological marker to assess the integrity of the intestinal mucosal barrier. Experimental studies have shown an association between intestinal permeability and obesity.Objectives: aim of this study was to investigate the relationship between serum zonulin levels, both at baseline and postprandial...

Background: Endocrine disturbances are the most prevalent complications in childhood cancer survivors (CSS), especially in those treated with cranial and cervical radiation for brain tumours, such as medulloblastoma. Recent data have shown frequent delays in the diagnosis and treatment of these complications that may lead to potential side-effects on general health. Apart from the well-known hypothalamic–pituitary and growth disorders observed in CSS, th...

Introduction: The main role of Vitamin D (VitD) is the regulation of calcium, which is also regulated by the parathyroid hormone (PTH), and phosphate metabolism. The main source of the more biologically active 25-hydroxy-Vitamin D3 (25OHVitD3) comes from the action of ultraviolet light on the skin.Aim: To determine if there are differences in concentrations of 25OHVitD3, calcium and PTH in school-aged children throughout...