ESPE Abstracts

Introduction: Isodicentric Y chromosome[idic(Y)] is one of the most common structural abnormalities of the Y chromosome and has been observed in patients with disorders of sexual development. Most idic(Y) chromosomes are found in mosaic form with a 45, X cell line.Methods: The aim of this study was to investigate the genotype and phenotype variability of patients with idic(Y). The clinical data from five patients was ext...

Background: Klinefelter syndrome (KFS) is a sex chromosomal disorder characterised by hypogonadism, progressive testicular failure, gynaecomastia and learning difficulties. Genital anomalies are rarely observed in KFS. Androgen insensitivity has been previously postulated, but not proven to cause genital ambiguity in KFS. Androgen receptor (AR) gene defects are reported in AIS, but have not been reported in children with KFS with mild hypospadias. We describe a novel ...

Introduction: Turner syndrome (TS) is caused by monosomy or structural abnormalities of the X chromosome, with a prevalence of out 1/2500 females live birth. Most important clinical features of TS are short stature and gonadal failure. Approximately one third of girls with TS may undergo spontaneous puberty. Here we report a case of a variant TS with breast development.Case report: A 9-year-old girl was referred to our paediatric endocrinology outpatient...

Introduction: Osteogenesis Imperfecta (OI) is a group of rare hereditary collagen disorders. Vertebral compression fractures and vertebral deformities are well-known complications of OI. Intravenous zoledronic acid is widely used to improve the bone mineral density in children with OI. This study aimed at assessment of the changes in vertebral compression and shape in children who received regular zoledronic acid infusions.Method...

Background: Congenital Adrenal Hyperplasia (CAH) is an autosomal recessive disorder with more than 90% of cases caused by defects in the steroid-21 hydroxylase (CYP21A2) gene. Such defects are the main cause of 21-hydroxylase enzyme deficiency that affects the biosynthesis of cortisol and aldosterone. The CYP21A2 gene is part of the RCCX module, which is located on chromosome 6p21.3, in the major histocompatibility complex (MHC) class III reg...

We present the case of a 16.5-year-old short, thin boy with Cushing disease. The first symptom of the disease was spinal pain and vertebral fractures attributed to osteoporosis. The patient was admitted to the clinic due to severe back pain. On dual X-ray absorptiometry (DXA), the Z-score TBLH was: -1.9, Z-score Spine: -4.2. The X-ray and magnetic resonance imaging (MRI) revealed multilevel fractures of the thoracolumbar vertebrae. The causes of this condition initially remain...

Introduction: It is known that microduplications including the SOX3 gene and intragenic duplications leading to loss of function in the gene cause panhypopituitarism, which can be accompanied by intellectual failure. Here, we report the first known case of panhypopituitarism, a deletion of the X chromosome, including the SOX3 gene in the q27.1q27.3 region.Case: A 15-years and two months old male patient was referred to o...

Introduction: Primary hypogonadism is stated as one of major features in patients with Turner Syndrome (TS), however it is not a constant finding. Variable markers of ovaries failure in TS patients are still missing. The present study aimed to evaluate the usefulness of atymullerian hormone and inhibin B assessment in predicting spontaneous puberty in patients with TS.Methods: The study included 35 TS patients. Gonadal a...

The contiguous gene deletion syndrome, CAH-X, was reported in an 8.5% of Congenital Adrenal Hyperplasia (CAH) patients with a TNXA/TNXB chimera. This results in deletions of CYP21A2 gene, encoding 21-hydroxylase necessary for cortisol biosynthesis, and TNXB, encoding the extracellular matrix glycoprotein tenascin-X (TNX). There are three TNXA/TNXB chimeras (CH1, CH2, CH3) that differ in the junction site, resulting in TNXB haploinsu...

Introduction: Adrenoleukodystrophy (ALD) is a genetic diseases classified in the group of peroxisomal disorders caused by mutations in ABCD1, a gene located on the X chromosome. It is the most common monogenetically inherited neurodegenerative diseases. X-ALD is an inborn error of metabolism characterized by impaired peroxisomal beta-oxidation of very long-chain fatty acids (VLCFA) with a heterogeneous clinical spectrum. VLCFA accumulate principally in the CNS...