ESPE Abstracts

Background: In the past decades Brazil has experienced a nutritional transition process characterised by a significant reduction in malnutrition and progressive increase in overweight and obesity. Nutritional education and precocious interventions are useful strategies to combat excess weight in childhood and adolescence. According to the World Health Organization (WHO), there were more than 40 million children overweight in the world in 2011. In Brazil, the prevalence of exce...

Background: Isolated Growth Hormone Deficiency (IGHD) is usually associated with a delayed bone age. A genetic cause for IGHD is more frequently found in patients with familial cases and/or consanguineous parents.Objective and hypotheses: To diagnose the genetic cause of IGHD and clarify the unusual clinical presentation of advanced bone age in one patient born to consanguineous parents.Method: Sanger sequencing of GH1, <e...

Background: Congenital GH deficiency (GHD) can be isolated (IGHD) or combined with other pituitary hormone deficiencies (CPHD). The identification of mutations has clinical implications for the management of patients and genetic counseling1.Objective: To prospectively conduct a molecular-genetic analysis in genes associated with IGHD or CPHD.Method: Forty patients with IGHD (n=8) or CPHD (n=32) were stu...

Background: Silver-Russell syndrome (SRS) is a heterogeneous syndrome characterized by severe intrauterine and postnatal growth retardation and typical dysmorphic features. The major abnormality is the hypomethylation of paternal allele of 11p15 imprinting centre region 1. In 10% of cases a maternal uniparental disomy of chromosome 7 (UPD7) can be detected. Speech delay and learning difficulties have been reported in these patients.Objective and hypothes...

Background: Central precocious puberty is due to premature activation of the hypothalamo–pituitary–ovarian axis. In girls it is idiopathic in up to 95%. Children with clinical rapid progression are treated with prolonged activity GnRH agonist.Objective and hypotheses: Characterise cases of idiopathic central precocious puberty (ICPP) followed at our hospital comparing the group treated with GnRH agonist (group A) with the group not treated (gro...

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: Congenital Hypopituitarism (CH) is a rare heterogeneous genetic disorder characterized by the deficiency of pituitary hormones. CH can be associated with extra pituitary phenotypes such as midline craniofacial malformations. To date, a minority of patients carry pathogenic variants in more than 30 genes, and thus more than 80% of cases remain unresolved.Objective: To identify de novo pathogenic variants in no...

Introduction: Mutations in the GH1 promoter are a rare cause of isolated GH deficiency (IGHD). In order to find the molecular cause of short stature due to IGHD, three siblings (2 M) born to consanguineous parents without mutations in the GHRHR and GH1 coding regions were screened for mutations in the GH1 promoter and locus control region. All patients harbored two variants (c.−123T>C and −161C>T) in homozygous state in the GH1 promoter, not found in 100 co...

Background: Acute lymphoblastic leukemia (ALL) is the most common paediatric cancer. Skeletal morbidity has been recognized as a complication of ALL and its treatment, occurring at diagnosis, during chemotherapy and/or years later.Aim: To describe the adversely effect on bone health, in terms of vertebral fractures (VF) and bone mineral density (BMD), in the follow-up of children with ALL.Design, patients and methods: Descriptive a...

Background: Postural orthostatic tachycardia syndrome (POTS) is a multifactorial condition, which implies symptoms as fatigue, tachycardia, sleep disorders and autonomic symptoms. The fundamental clinical sign is the manifestation of an abnormal increase in heart rates of at least 40 bpm within 10 minutes assuming an upright position, delineating a condition of orthostatic intolerance and decreasing quality of life.Objective</str...