ESPE Abstracts

Background: Dominantly acting loss-of-function mutations in the ABCC8 gene, encoding the sulfonylurea receptor 1 (SUR1) subunit of the β-cell potassium channel (KATP), are usually responsible for mild diazoxide-responsive congenital hyperinsulinism (CHI). In rare cases dominant ABCC8 mutations can cause diffuse diazoxide-unresponsive CHI. Recent reports suggest that medically responsive CHI due to a dominant ABCC8 mutation may confer an increase...

Background: NEUROD1 encoding neurogenic differentiation 1 is known to play an important role in the development of the pancreas and central nervous system. Heterozygous mutations have been rarely identified as a cause of maturity-onset diabetes of the young (MODY6). Biallelic NEUROD1 mutations have been reported to cause neonatal diabetes mellitus (NDM) as well. However, only 3 cases have been reported worldwide so far....

Background: Genomic imprinting is the process by which preferential methylation of one parental allele results in parent of origin specific expression of particular genes. Methylation is established during gametogenesis and is maintained throughout development. Alterations in any of the processes in the establishment and maintenance of methylation can lead to aberrant imprinting, which can result in either reactivation of the original silent allele or the sile...

Background: In North-Eastern Italy, a newborn screening for congenital adrenal hyperlpasia (CAH) has been taking place since 2001 to diagnose the classical form of 21-hydroxylase deficiency (21-OHD). Thanks to the screening program based on 17-OHP levels in dried blood spots, early diagnosis of CAH is possible, allowing appropriate precocious treatment and reducing mortality rates. Unfortunately, a high false positive rate, especially in preterm, low-birth-wei...

Introduction: Developed countries have shown, among the 20th century, a time trend towards a younger age at menarche. Tanner described an anticipation of 3 months every decade. In the last two decades of twenty century we have observed an apparent stabilization of menarche age in most of Western countries.Objective: analyze average age of menarche in Tuscany girls and compare our results with those in literatu...

Background: Immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX) syndrome is a rare disorder caused by loss-of-function mutations in the gene encoding the forkhead box P3 (FOXP3) transcription factor. This factor plays a key role in the differentiation and function of CD4+ CD25+ regulatory T cells, essential for the establishment and maintenance of natural tolerance.Objective: To describe clinic...

Objectives: Thiamine responsive megaloblastic anemia syndrome (TRMA) is characterized by the clinical triad of megaloblastic anemia, non-immune diabetes mellitus and sensorineural deafness. It is a very rare autosomal recessive disease with an increased frequency in consanguineous marriages and isolated communities. The syndrome is due to intracellular thiamine deficiency which is the result of a defective high affinity low performance thiamine transporter pro...

Background: Different formulations of gonadotropin-releasing hormone agonist (GnRHa) are available for the treatment of central precocious puberty (CPP). Currently there are few data on quarterly formulation depot (11.25 mg) during treatment.Aim: The purpose of this study is to analyse the effect of Triptorelin 11.25 mg 3-months depot in comparison with the monthly 3.75 mg formulation at the beginning and during the treatment of CPP.<p class="abstext...

Background: Central precocious puberty (CPP) may affect quality of life (QOL) due to premature body and psychological changes that characterize this pathology. Few data are available on health-related quality of life (HRQOL) and social, emotive and behavioral competences in CPP children treated with gonadotropin-releasing hormone agonists (GnRHa). This study aimed to investigate these aspects in a group of CPP girls during therapy.Methods: Fifty-four CPP...

Background: Polycystic ovary syndrome (PCOS) in adolescence has a challenging diagnosis and therefore has raised intense discussions. Its prevalence in childbearing age women ranges from 5 to 10%. However, the prevalence in obese adolescents has not yet been reported. Besides, the relationship of PCOS with metabolic and cardiovascular disorders in this specific population has not been established.Objective and hypotheses: We aimed to assess the prevalenc...