ESPE Abstracts

Background: The GH-IGF system plays an important role in strength gain. Some studies suggest that Zinc, Magnesium and Pyridoxine (ZMA) supplementation could increase GH/IGF and testosterone levels in young subjects. This hypothetical increase could lead to significant changes in body composition. ZMA is a very popular supplement, easily found in specialty stores, and it is presumed to increase GH, IGF-I and testosterone levels. However, studies are divergent regarding its effi...

Introduction: During last years there is an increasing number of referrals because of gender incongruence worldwide. In Argentina, in 2012, a gender identity law was sanctioned, stablishing the right of gender reassignment during childhood, adolescence, youth and adulthood, without the need of previous medical and/or mental health evaluation. This was followed by a great number of referrals. There is scarce literature regarding longterm outcome in transgender persons who start...

Background: Chronic diseases are the main causes of bone mass reduction in childhood and adolescence. Different aspects related to the process of bone acquisition and maintenance may be affected. Studies had point out the presence of bone mass reduction in children and adolescents with HIV infection with association to antiretroviral use, chronological age (CA), weight and serum CD4 T-cell counts. However, others do not.Objective: To evaluate bone minera...

Background: GH treatment is proven to increase adult final height in some pathology and first year response is assumed as an index of treatment’s effectiveness.Objective and hypotheses: Identify the prevalence of each indication in children treated with GH in our hospital and evaluate the first year response to treatment.Method: We retrospectively analysed the files of 30 patients followed for short stature and on GH treatment...

Objectives: -To determine children diagnosed with central congenital hypothyroidism (CCH) by a screening program using TSH and total T4 between May 2016 and January 2019.-To analyze the characteristics of the disease in these children.Material and Methods: During the time of the study, 14.743 newborns have been screened. Cut-off points are used for TSH ≥10MU/ml and T4 6 and 20 mg/dl as lower ...

Introduction: Acromesomelic dysplasia, type Maroteaux (AMDM) is a rare autosomal recessive skeletal dysplasia, characterized by severe dwarfism and disproportionate shortening of the extremities, predominantly affecting middle and distal limb segments. It results from loss-of-function mutations affecting the C-type natriuretic peptide (CNP) receptor (NPR-B), a transmembrane guanylyl cyclase receptor encoded by the NPR2 gene. Resistance to growth hormo...

Background: The investigation of patients with 46,XY DSD is often difficult, with no definitive diagnosis in more than 50% of cases investigated. We describe a new mutation of MAMLD1 in a patient with 46,XY DSD who also showed an alteration in the NR5A1 gene.Case report: A 5-year-old boy was referred to our clinic for DSD. He was born to non-consanguineous parents and was diagnosed with ambiguous genitalia at birth but had not been previously investigate...

Background: Mitchell Riley syndrome is a rare syndrome caused by mutations in the RFX6 gene, resulting in neonatal diabetes, intestinal atresia, pancreatic abnormalities, and biliary hypoplasia. RFX6 is a winged helix transcription factor that is expressed in the developing pancreas and in the gut endoderm. Previous eight case reports highlight poor outcomes with usually a fatal course in infancy.Case presentation: Twin 2 of a dichorion...

Background: Silver–Russell syndrome (SRS; OMIM 180860) is a genetically and clinically heterogeneous low birthweight syndrome characterised by poor postnatal growth and a number of variable dysmorphic features. Small-for-gestational age infants in general have an increased risk of metabolic complications, some initially occurring in late childhood and adolescence.Objective and hypotheses: To identify i) response to GH based on genotype and ii) devel...

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...