ESPE Abstracts

Introduction: McCune–Albright syndrome (MAS) is a rare disease resulting from a somatic activating mutation of GNAS1 encoding the Gs-alfa subunit of the G-protein coupled membrane receptor responsible for multiple hormonal signaling cascades leading to the classical trias: polyostotic fibrous dysplasia, café-au-lait hyperpigmentation and GnRh independent precocious puberty. Early manifestation is accompanied with multiple organ involvement and may lead to ACTH-indepe...

Background: The abnormalities of the Internal Carotid Artery (ICA) are very rare phenomenona and the agenesis, in particular, has an estimated incidence of 0,01% among the general population. It could also be associated with another rare condition: the congenital hypopituitarism.Objective and hypotheses: To describe a very rare case characterized by the association between congenital hypopituitarism and abnormalities of the internal carotid artery.<p...

Introduction: Insulin stress test (IST) to diagnose growth hormone (GH) deficiency is rarely used by paediatric endocrine teams in the United Kingdom, due to concerns over safety. We share our experience of undertaking modified IST in children, with regards to safety and outcomes.Methods: We adapted the protocol for insulin stress test, proposed by Galloway et al to undertake pituitary stimulation test for our c...

Background: Patients with Klinefelter syndrome (KS) have an increased risk for osteoporosis and fractures in adulthood. Data on bone mineralization in adolescence are limited, although it is a known at-risk period for vitamin D deficiency, low calcium intake and evolving hypogonadism.Objective and hypotheses: To study the bone mineralization in KS adolescents and its relationship with vitamin D/calcium and gonadal status. KS adolescents with low calcium ...

Background: Wolfram Syndrome (WS) is a rare progressive neurodegenerative disorder characterised by early-onset diabetes and optic atrophy as well as a variable spectrum of other clinical features. It is caused by mutations in the WFS1 gene. There is currently limited published literature on pubertal progression and gonadal function in WS.Aims: To review the gonadal function and pubertal progression of a cohort of adoles...

Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome (APECED, OMIM240300) is a rare monogenic disease due to biallelic mutations in the Autoimmune Regulator (AIRE) gene. This encodes for a thymus-enriched transcription factor responsible for central immune tolerance. Classic diagnostic criteria are the presence of two of main symptoms of chronic mucocutaneous candidiasis (CMC), hypoparathyroidism (HP) and Addison’s disease (AD). Non-endocrine autoimmun...

Background: Osteoporosis is a complex disorder, influenced by both environmental and genetic factors. Primary osteoporosis is a rare early onset disorder with high morbidity and mortality. Wnt signaling pathway has been shown to be involved in the regulation of bone remodeling.Case: Native Argentinean boy born from a consanguineous family with history of retinal detachment in the maternal line. Delivered at term, birth weight 2900 g (−0.95 SDS), bi...

Background: Infants with Prader-Willi syndrome (PWS) exhibit stunted growth. However, little is known about the role of genes expressed from the imprinted PWS domain in healthy infants. This study aimed to analyze the relative gene expression of the SNURF-SNRPN/UBE3A cluster in the imprinted PWS domain in umbilical cord tissue, and its potential association with prenatal and postnatal growth in apparently healthy infants.Methods:...