ESPE Abstracts

Global Pediatric Endocrinology and Diabetes (GPED) aims at addressing needs that are common to all societies and is not intended to duplicate the specific societies’ activities. GPED’s website (www.globalpedendo.org) allows for registration of members as well as for a search function.Specific existing and potential projects include:i) Preventing redundancy of resources: developme...

Background: Anti-Mullerian hormone (AMH) concentration is now well studied for prepubertal boys (Plotton, 2009, 2012) or women in reproductive medicine, but there is few data about reference value in newborns. This dosage could be helpful for the management of disorders of sex development.Objective: The objective was to determine reference values of AMH on umbilical cord blood and to compare the values to DSD new born diagnosed during the evaluation....

Background: The molecular diagnosis of McCune Albright syndrome (MAS) is difficult because the detection of somatic GNAS1 mutations is usually performed in blood, in which the fraction of mutated allele could be barely detectable. To improve the usual techniques (selective enrichment, either with nested PCR and enzymatic digestion or with use of peptide nucleic acid probes), and to avoid technical problems like contamination, a new approach using next generation seque...

Background: Early life stress (ELS) are known to have a deleterious impact on health, but their potential long-term consequences on mortality remain to be assessed. World War 1 (WW1) has caused major stress and bereavement to millions of European mothers.Objectives and hypotheses: To compare the effects of a maternal stress occurring during intra uterine or in postnatal life upon long-term mortality.Patients: Thanks to recently dig...

Background: The growth and IGF1 responses to GH treatment show a large variation across children with idiopathic short stature (ISS). Compliance and GH regimens are important determinants. The d3 variant of the GH receptor (GHR) is a significant genetic predictor. The role of individual epigenetics had not been studied. The IGF1 locus is an attractive candidate where CG methylation could influence GH action.Objectives: To study GH effects on a) IGF1 gene...

Background: Gestational exposure to endocrine disrupting chemicals (EDCs) can impact the control of sexual differentiation by altering the hormonal environment of the foetus. Prenatal exposure to BPA, for instance could lead to disorders of sexual development. At the interface between the mother and the foetus, the placenta plays a key role in foetal programming and responds to environmental stressors in a sex specific manner. Epigenetics has appeared to be a key mechanism for...

Background: Isolated gonadal dysgenesis due to NR0B1 locus duplication is a rare cause of 46,XY DSD. Almost reported cases were a total gonadal dysgenesis with complete female phenotype associated with primary amenorrhea. Only two unrelated cases of isolated partial gonadal dysgenesis with molecular characterization have been reported. The risk of gonadoblastoma is high.Objective and hypotheses: Phenotype correlation study (clinical, hormonal, and histol...

Background: Isolated gonadal dysgenesis due to NR0B1 locus duplication is a rare cause of 46,XY DSD. Almost reported cases were a total gonadal dysgenesis with complete female phenotype and streak gonad diagnosed late because of absent of pubertal development and primary amenorrhea. Only two unrelated cases of isolated partial gonadal dysgenesis with molecular characterization have been reported. The risk of gonadoblastoma is high.Family case reports: Al...

Background: StAR deficiency is a rare cause of primary adrenal insufficiency (PAI), with fewer than 100 cases reported worldwide. The first patients to be described suffered from severe forms of lipoid adrenal hyperplasia leading to severe undervirilization in 46,XY foetuses. More recently, however, less severe forms, known as "non-classical" or "atypical lipoid adrenal hyperplasia", presenting with PAI with salt wasting (SW) syndrome and norma...

Background: Familial glucocorticoid deficiency (FGD) is an autosomal recessive disorder characterized by specific failure of adrenocortical glucocorticoid production in response to adrenocorticotropic hormone (ACTH). Mutations of the nicotinamide nucleotide transhydrogenase (NNT) gene have recently been implicated in FGD.Objective and hypotheses: To describe a new case of FGD with combined mineralocorticoid insufficiency and extra adrenal manifestations....