ESPE Abstracts

Background: Hypoglycaemia is the most common and threatening complication in diabetic children. Nocturnal hypoglycaemia is mostly unrecognised and asymptomatic, but recurrent mild hypoglycaemia at night can lead to hypoglycaemia unawareness and reduced performance at daytime.Aims: To evaluate frequency and duration of nocturnal hypoglycaemia in type 1 diabetic children and to identify risk factors for such events.Patients/methods: ...

Background: Noonan syndrome (NS) is a congenital polymalformative disorder caused by aberrant up-regulated signalling through RAS GTPase. Although NS is associated with hematologic malignancies, no predisposition for neuronal tumors was reported so far.Objective and hypotheses: We describe two cases of young patients with NS and dysembryoplastic neuroepithelial tumor (DNET). This is the first case series reporting a rare type of intracranial tumor in NS....

Introduction: Phosphoglucomutase 1 catalyzes the interconversion of glucose-6-phosphate and glucose-1-phosphate. Phosphoglucomutase 1 deficiency (PGM1-CDG), previously termed glycogenosis type XIV (OMIM 612934), is a rare variant of the congenital disorders of glycolysation (CDG), resulting in abnormal attachment and processing of protein linked N-glycans. We present a girl with PGM1-CDG and delayed pubertal development and review the endocrine findings of the few pat...

Background and aims: Folate and vitamin B12 are methyl donors (MD) needed for the synthesis of methionine, which is the precursor of S-adenosylmethionine (SAM), the substrate of methylation in epigenetic, and epigenomic pathways. Low dietary intakes of folate and vitamin B12 are frequent, especially in pregnant women and in the elderly, and deficiency constitutes a risk factor for various diseases. The MD deficiency (MDD) leads to a decrease in SAM:SAH (S-ade...

Background: Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder caused by 21-hydroxylase deficiency in 95% of all cases. This disorder is related to the mutation of CYP21A2 gene that is located in a multiallelic complex called RCCX module showing tandem copy number variation. Molecular genetic analysis of genes located in such region is frequently difficult but the accurate diagnosis of patients suspected with CAH requires a complex molecular analysis.<...

Background: Since the late 1960’s, pubertal breast staging has been based on Tanner’s classification. Appearance of glandular breast tissue may be difficult to distinguish by palpation from the surrounding subcutaneous fat tissue, especially in obese girls. To our knowledge, validation of the clinical assessment of pubertal stages by MRI quantification of glandular breast tissue has never been performed.Objective and hypotheses: i) To report no...

Background: IGF1 is essential for pre and postnatal growth. Mutations in IGF1 receptor (IGF1R) gene have been described in patients with intrauterine growth retardation and other anomalies.Objective and hypotheses: To study IGF1R gene in small for gestational age (SGA) patients with short stature and correlate the results with clinical presentation and response to rhGH treatment.Method: Longitudinal retrospective study of 69 SGA pa...

Background: Short stature homeobox (SHOX)-related haploinsufficiency is associated with a wide clinical variability, all characterized by growth failure with or without mesomelia and/or Madelung deformity. In patients, the effect of GH therapy on final height is comparable to the effect that can be obtained in Turner syndrome. The majority of the patients with SHOX-related haploinsufficiency disorder have deletions of varying sizes in SHOX. Point mutations in SHOX account for ...

Background: Inconsistent associations of leptin and adiponectin with bone mineral characteristics in puberty and adolescence have been reported.Aim: To examine associations between leptin to adiponectin ratio (LAR) in puberty and bone mineral characteristics at 18 years of age and increase of bone mineral characteristics until 18 years of age.Materials and methods: 88 boys were investigated with a ...

Aim: We aimed to investigate the growth potential of pituitary microadenomas and cystic lesions < 10mm in children, and to evaluate how reproducible the measurements were on magnetic resonance imaging (MRI).Design: Retrospective observational study.Methods: 74 children were included < 18 years at first pituitary MRI, and diagnosed with a microadenoma (microadenoma producing ACTH, GH or TSH ...