ESPE Abstracts

Background: Steroidogenic factor 1 (encoded by the NR5A1gene) is a transcriptional regulator of genes involved in gonadal development and steroidogenesis. Mutations in NR5A1 have been identified among the most frequently genetic causes of disorders of sex development (DSD).Objective: To report the phenotype of 31 patients associated with 17 novel and 9 previously described NR5A1 sequence varian...

Sex chromosome disorders, including sex chromosome mosaicism, result in a large clinical spectrum. There is scarce information about the histological pattern of these gonads.Aim: to characterize the histology and cell markers pattern in gonads of patients with chromosomal mosaicism.Gonadal biopsies from thirteen patients with chromosomal mosaicism, including chromosome Y were studied. Six were rearing as male and s...

Introduction: Preterm delivery may comport blood serum Insulin-like Growth Factor-I (IG1) decrements and lower body temperature during the first days of postnatal life of the human newborn (NWB). We evaluated the role of preterm delivery in associations between axillary temperature (TEMP) and IG1 in NWBs without life-threatening disease.Methods: NWBs with any among total parenteral nutrition, blood transfusion, therapeutic hypothermia, life-threatening d...

Introduction: Noonan syndrome (NS) is a relative frequent genetic disorder, mainly characterized by dysmorphic face features, congenital heart defects and short stature. Though delayed pubertal development has been described in both sexes, the physiopathological root remains unclear. This study aims at characterizing puberty development in Noonan syndrome.Materials and Methods: The study population included 111 individuals with a molecul...

Introduction: Body temperature determinants include head-brain thermal homeostatic mechanisms and, in the human newborn (NWB), birth gestational age (GA). Estimated birth brain weight (BRW) ratio to birth body weight (BW)(BBR) resulted associated with GA and blood serum Insulin-like Growth Factor (IGF)-II(IG2) ratio to blood serum IGF Binding Protein-3 (IB3)(IG2 through chronologically-corresponding IB3, IG2/IB3R) in our previous NWB observations. Here we evaluate BRW, BW, BBR...

Direct relationships of estimated birth brain weight(BRW) to birth body weight (BW) ratios (BBR) and of BW<=10.th centile for GA(SGA) with blood serum Insulin-like Growth Factor-II(IG2) to blood serum Insulin-like Growth Factor Binding Protein-3 (IB3) ratios (IG2/IB3R), and inverse relations between BW-SDS and birth chest circumference(CC) / BW ratio (i.e., CC through BW; CC/BWR) have been detected by our group in the human newborn(NWB). We evaluated the possibility that CC...

Background: Despite many similarities between the structure, receptors and proliferative and growth promoting actions, the interrelationship between PRL and GH in clinical conditions has received little attention.Aim: To determine the PRL response to GH stimulation tests.Subjects: Prepubertal and early pubertal boys (n=581) and girls (n=502) with short stature.</p...

Introduction: BIPSS before and after desmopressin stimulation has been shown to be a useful tool for diagnosis of ACTH-dependent CD and negative magnetic resonance imaging (MRI)or positive MRI but inconsistent biochemical data, in adult patients. However, little is known about its usefulness in pediatric population.Objective: To evaluate the prevalence of negative MRI, the sensitivity of BIPSS before and after desmopress...

Introduction: Prader-Willi Syndrome (PWS) is a complex genetic condition associated with feeding difficulties, hypotonia, developmental delay in infancy; hyperphagia leading to extreme obesity, growth failure and behavioral problems in childhood. Coeliac disease (CD), is an autoimmune disease characterized by gluten intolerance and a variety of symptoms most commonly diarrhea or constipation and failure to thrive. In PWS the challenge is to optimize growth while avoiding obesi...

Background: Beckwith-Wiedemann Syndrome (BWS) is an overgrowth disorder involving a predisposition to tumor development, etiologically connected with genetic/epigenetic dysregulation. The main features of BWS include omphalocele, macroglossia and macrosomia; however there is significant clinical heterogeneity. SHOX mutation is a frequent cause of short stature with high penetrance, but extremely variable clinical expression. The mean adult height is -2.2 SDS. The presence of m...