ESPE Abstracts

Background: Hereditary vitamin D-resistant rickets (HVDRR) is a rare disease caused by mutations in vitamin d receptor (VDR). Patients with HVDRR are usually treated with intravenous calcium (i.v.-Ca) therapy via a central catheter. However, central catheter-related complications can cause important morbidity. In this report, we described four patients with HVDRR from different families. In three of these cases we used a novel therapeutic regime of intermittent IV-Ca ...

Aim: Data on response to GH treatment in the very young children with GH deficiency is scarce. The aim of this study was to evaluate the growth response in such children in a national multicentre study and to analyse the factors affecting the growth response.Materials and methods: In this study, we retrospectively evaluated the files of GH deficiency patients who had started GH treatment between 0–3 years of age who were being followed in 14 differe...

Context: Type 1A pseudohypoparathyroidism (PHP-1A) is characterized by target organ resistance to PTH and Albright’s hereditary osteodystrophy (AHO). Basal ganglia calcifications and subcutaneous ossifications can be seen in PHP-1A. Acetazolamide, a carbonic anhydrase inhibitor, causes metabolic acidosis by increasing bicarbonate excretion from the proximal renal tubule thereby diminish precipitation of calcium and phosphorus. Acetazolamide had been used ...

Context: Steroid 17α-hydroxylase/17,20-lyase deficiency (17OHD) is characterized by decreased sex steroids and cortisol, and excessive mineralocorticoid action. The clinical symptoms of hypocortisolemia are subtle.Aim: The clinical, biochemical, and molecular characteristics of patients with 17OHD were evaluated to determine the factors influencing the time of diagnosis and the management.Pati...

Bile acids (BA) are C24 steroids synthesized from cholesterol in liver. Originally, they were mainly considered to function as emulsifiers supporting resorption of lipophilic food compounds and excretion of metabolic products. Recently, their additional biological and endocrine functions in the regulation of metabolism have aroused interest of researchers. In contrast to BA in blood, it is surprising that hardly any data exist on BA in the most accessible human biof...

Aim: Quail egg (QE) consumption became popular among children for alleged health benefits. Based on our observation of premature thelarche (PT) in a few children who consumed QE, we investigated the relationship between QE and puberty by a clinical and an experimental studies.Method: In the clinical study, a questionaire was used to compare the frequency and amount of QE consumption (between 55 girls with PT (n ...

Background: Primary hypoparathyroidism (HP) is a rare disease characterized by hypocalcemia, hyperphosphatemia and low/inappropriately normal parathyroid hormone (PTH) levels. We aim to characterize the clinical findings and molecular aetiology of childhood HP in our cohort.Method: DiGeorge-VCFS FISH analysis was performed on all patients (n=28) as the initial step after the diagnosis. In whom, FISH analysis was...

Introduction: Medulloblastoma is the most common central nervous system tumour in children representing, approximately 20% of childhood brain tumours. Cure can be achieved with surgery, chemotherapy and radiotherapy. However, disease survivors encounter long term endocrine complications including short stature due to growth hormone (GH) deficiency and spinal radiotherapy.Patients and Methods: We aimed to investigate long...

Background: RASopathies are a group of diseases with common clinical features that occur as a result of pathogenic variants in genes encoding components of the RAS/MAPK pathway. The aim of this study was to evaluate the clinical and molecular features of RASopathy cases in our pediatric endocrinology unit.Subjects and Methods: The clinical and molecular data of 42 patients (18 girls) from 39 families were evaluated, retr...

Introduction: 17α-hydroxylase deficiency (17OHD) is a rare form of congenital adrenal insufficiency characterized with decreased cortisol and sex steroid biosynthesis, overproduction of ACTH, and increased mineralocorticoids. The overproduction of corticosterone hinders the symptoms of glucocorticoid deficiency and causes sodium retention, hypertension, and hypokalemia in severe cases. Affected 46,XX and 46,XY individuals are phenotypically female in the...