ESPE Abstracts

Background: minipuberty (MP) consists in a postnatal activation of hypothalamic-pituitary-gonadal (HPG) axis, which occurs physiologically in both sexes during the first months of life. FSH and LH peak between 1 and 3 months, stimulating sex hormones secretion. In preterm infants, MP might lead to a stronger and more protracted hormonal stimulation, even if specific literature data are limited and not univocal. Immaturity of the hypothalamic feedback has been ...

Objective: Minipuberty (MP) is still not well defined in small for gestational age (SGA) infants, due to controversial literature data. The present study aims to evaluate MP in SGA infants, both preterm and full-term, compared with those born adequate for gestational age (AGA), during the first year of life.Design: Case-Control, Prospective Study.Methods: The study population included 33 SGA newbor...

Background: X-Linked hypophosphatemic rickets (XLH) is a disorder of phosphate homeostasis, characterized by renal phosphate wasting and hypophosphatemia, with normal to low 1,25-dihydroxy vitamin D3 serum levels. PHEX is the gene defective in XLH and different mutations and genomic rearrangements have been described in different families affected by this disease.Objectives: To detect inactivating mutations in the PHEX g...

Background: ROHHADNET syndrome affects children with normal development until 2–4 years of age.Objective and hypotheses: Aim of this study was to evaluate a possible role of autoimmunity in this disorder. In spite of a suspicion for genetic etiology, disease-associated genetic variations have not been identified. A paraneoplastic/autoimmune etiology has been suggested mainly because of the association with neural crest tumors....

Background: Low bone mineral density (BMD) is found in up to 50% of adolescents and adults with Prader-Willi syndrome (PWS). High fracture risk has been described in adult PWS patients. This bone fragility could be due to inadequate gonadal hormones levels during pubertal development, and to relative growth hormone insufficiency during childhood and adolescence. However, the mechanism/s of low BMD in PWS have not been clarified.Objective and hypotheses: ...

Background: ROHHAD (rapid-onset obesity with hypoventilation, hypothalamic dysfunction, autonomic dysregulation) syndrome is a rare and underdiagnosed disease with high mortality rate. When a neural crest tumor (NET) is detected (56% of patients) the acronym used is ROHHADNET.Aim: To analyze the relationship between clinical variables, hypothalamic-pituitary disorders, DXA parameters and neural tumors, in ROHHADNET patie...

Background: Disorders of Sex Development (DSD) comprise several phenotypes due to dysfunction in genes involved in human sexual determination and differentiation. The most frequent aetiologies among 46,XY DSD are androgen insensitivity syndrome and 5-alpha-reductase type 2 deficiency due mutations in AR and SRD5A2 genes, respectively.Objective and hypotheses: The purpose of this study was to investigate mutations in AR and ...

The deficit of lysosomal acid lipase (LAL) is an infrequent (1: 40,000–300,000 prevalence), autosomal recessive, monogenic pathology. It can aggressively (Wolman’s disease): malabsorption and severe dyslipidemia with survival less than one year of life. The cholesterol ester storage disease (CESD) presents with dyslipidemia, liver disease and early cardiovascular disease.Goals: Descriptive study of the prevalence of LAL deficiency and carriers ...

Today we have an increase in patients with early-ahead forecast pubarche with impaired bone carving for advancement but organicidad criteria (HSC) but if dysfunction or adrenal hyperandrogenism and/or ovarian There are several anti-androgen drugs, all without usual pediatric use (use ‘of label’). Low-dose flutamide 62.5 mgr/day has been postulated as a treatment in these cases, but its use is restricted due to the risk of side effects (gynecomastia and liver involvem...

It is known that more checks of blood glucose, metabolic control of patients with type 1 suffering Dm improvement. Improved technology has made it possible to develop devices interstitial glucose control both blinded (retrospective) and open (in real time). The FREE STYLE free device is the latest appearance on the Spanish/European market. Although initially not seem indicated in <18 th, these are the a priori more could benefit from an improvement of metabolic control.</p...