ESPE Abstracts

Introduction: Turner Syndrome (TS) is the consequence of complete or partial absence of one X chromosome in a phenotypic female. The genes involved in Turner phenotype are X-linked genes that escape inactivation. A major locus involved in the control of linear growth has been mapped within the Pseudo-Autosomal Region (PAR1) of the X chromosome.Aim: To study some endocrine hormones with considerable effect on the presentation and prognosis of TS and their...

We recently showed that Xq26.3 microduplications are associated with early childhood-onset gigantism, a condition we named X-linked acrogigantism (X-LAG). Patients with X-LAG present with mixed GH/PRL secreting pituitary macroadenomas and/or hyperplasia. The original smallest region of overlap for the microduplications included 4 coding genes, of which only one, an orphan G protein-coupled receptor named GPR101, was highly expressed in tumors. A single patient with GP...

Background: Turners Syndrome (TS) is associated with osteoporosis in later life. ‘BoneXpert’ has enabled the automated assessment of bone age (BA) and Bone Health Index (BHI). Strong correlations between BoneXpert BHI and dual-energy x-ray absorptiometry and peripheral quantitative computed CT measurements are reported. BoneXpert produces a standard deviation score for BHI (BHI-SD) relative to a healthy cohort of children according to BA.Object...

Background: The assessment of bone age increments is important when monitoring treatment in many conditions in pediatric endocrinology. However, manual rating suffers from significant rater variability. Automated bone age assessment could provide increased precision, and also assess increments of bone health index (BHI) from the same X-rays.Objective and hypotheses: To assess the precision of automated assessment of increments of bone age and BHI.<p ...

Background: Triple A syndrome (alacrima, achalasia, adrenal failure, progressive neurodegenerative disease) is caused by mutations in the AAAS gene which encodes the protein ALADIN. Osteoporosis seems to be an overlooked symptom in triple A syndrome.Objective and hypotheses: To evaluate etiology of osteoporosis in six male and four female patients with triple A syndrome.Method: X-ray, dual X-absorptiometry (DXA) of the lum...

Background: Cleidocranial dysplasia (CCD; MIM 119600) is a rare congenital autosomal dominant skeletal dysplasia characterized by hypoplastic or aplastic clavicles, late closure of the fontanelles, open skull sutures, dental anomalies, moderately short stature and a variety of other skeletal features. CCD is caused by mutations, deletions or duplications in the runt-related transcription factor 2 gene (RUNX2), which encodes for a protein essential for osteoblast differentiatio...

Background: Central precocious puberty (CPP) is a common condition in girls and has been associated with deterioration of final height (FH). Height prognosis (HP) is critical for the decision of treatment in CPP. There are several methods for predicting FH in CPP but none is completely reliable. Most methods consider bone age (BA), which is very imprecise, but there is no consensus on which method is the best to estimate FH.Objective: To compare the accu...

Background: Partial androgen insensitivity syndrome (PAIS) typically presents with micropenis, penoscrotal hypospadias, bifid scrotum with descending or undescending testes and gynecomastia. It is x-linked recessive disease resulting from mutations in androgen receptor (AR) gene.Objective and hypothesis: To present clinical characteristics of a novel mutation in the AR gene in an adolescent boy with PAIS who presented with gynecomastia ...

Background: Gene SHOX haploinsufficiency due to deletions or mutations in heterozygosis causes a wide spectrum of phenotypes ranging from very severe disharmonic short stature (S. Léri-Weil, S. Turner) to very mild forms with the appearance of idiopathic short stature (IST) of difficult clinical recognition. Auxological study directed at evaluating body disproportions such as the sitting height/height (SH/H) ratio in patients with IST has been postulated as usefu...

Background: Turner syndrome (TS) is the most well-known and common chromosomal disorder accompanied by delayed growth. According to the Ukrainian national register (UNR) of children with dwarfism the growth retardation is common for all girls with TS.Objective and hypotheses: The aim of the study was to determine the growth parameters of TS girls different age and karyotype, before GH treatment.Method: According to the UNR it was p...