ESPE Abstracts

Background: McCune–Albright Syndrome is a combination of polyostotic fibrous dysplasia (BFD), café’-au-lait skin pigmentation and hyperfunctioning endocrinopathies. It results from postzygotic mutations in a-subunit of the Gsalfa protein and the consequent phenotype is a mosaic with high degree of clinical variability.Objective and hypotheses: The aim of the study is determine prevalence and characteristics of GH hypersecretion (GHH) in MA...

Background: Endoplasmic reticulum (ER) is the site where proteins are folded. Perturbation of ER homeostasis activates a set of ER-to-nucleus signaling reactions known as the unfolded protein response (UPR). Metabolic stress causes UPR activation which contributes to the development of insulin resistance and metabolic syndrome. As UPR can be activated by nutrient and oxygen starvation, we postulated that intrauterine growth restriction may trigger UPR signaling and thereby con...

Background: Several studies have examined the relationship between type 1 diabetes and bone mass, which reported contradictory data on BMD, bone remodelling markers and bone quality. Nevertheless an incresead prevalence of osteopenia was observed among patients with duration of disease of >6 years.Objective and hypotheses: The aim of the study was to investigate the potential negative impact of type 1 diabetes on bone status in a group of children wi...

During development, gonadotropin releasing hormone (GnRH) neurons are born in the nasal placode and migrate to the hypothalamus, where they position to regulate sexual reproduction by pulsatile release of GnRH. Defective GnRH neuron development or action may lead to GnRH deficiency (GD) which is characterized by absent or delayed puberty. Several GD causative genes have been identified so far, but half of the cases are still idiopathic. The employment of complementary research...

Background: Congenital Hyperinsulinism (CHI) is the most frequent cause of severe, persistent hypoglycemia in children. Persistent hypoglycemia places patients at risk for adverse clinical outcomes, and current guidelines recommend maintaining plasma glucose >3.9mmol/l. CHI patients often have substantial, residual hypoglycemia and fail to meet treatment goals with currently available standard of care (SOC) therapies. In this study, we aimed to characterize...

GR and GT are diamniotic monochorial preterm twins (32 GA), both AGA (GR: W -1 SDS, L -1.5 SDS; GT: W and L 0 SDS), with normal karyotype and array-CGH on amniotic fluid, with no major complications associated to prematurity. At birth GT presented bilaterally cryptorchidism associated with micropenis, GR presented normal male genitalia. In the first year of life a severe growth deceleration in length (from -3SDS to -5 SDS) was observed, mainly after six months of life in both ...

Background: Congenital hypopituitarism is a rare cause of pituitary insufficiency (incidence: 12–42 new cases/million per year; prevalence: 300–455 cases/million). The aetiology remains largely unclear: the most frequently correlated genetic abnormalities are those involving transcription factors implicated in pituitary organogenesis. The phenotype and neuroradiological findings associated with the underlying genotype may be highly variable (from an isolated hypopitu...

Background: Septo-optic dysplasia (SOD) is a congenital, rare anomaly (1:10 000) associated with optic nerve hypoplasia, midline brain abnormalities and pituitary hormone abnormalities. Genetic alterations associated are: HESX1, SOX2 and SOX3. SOD’s pattern of growth even without GH treatment has been reported to be often good.Objective and hypotheses: Evaluate SOD’s growth in patients followed in our Centre.Method: See F...

Background: SHOX-D is rarely diagnosed in early infancy as cause of short stature.Objective and hypotheses: Describe clinical characteristics of two girls with an early diagnosis of Leri-Weill dyschondrosteosis, admitted to our hospital because of severe short stature.Method: Mutation screening of SHOX and its regulatory regions was performed by MLPA. Family analysis was undertaken.Results: The first 1.3 year...

Background: The phenotype of SHOX aploinsufficiency is highly variable also in affected members of the same family with broad differences in severity of short stature, disproportion, presence of Madelung deformity.Case presentation: We present a family with a new mutation of SHOX gene. A 2.3 years old girl, born at term from unrelated parents, came to our observation for short stature. Her height was −2.02 SDS, arm span was normal, sitting heigh/he...