ESPE Abstracts

Background: Silver Russell syndrome (SRS) is a heterogeneous disorder characterised by intrauterine and post-natal growth retardation, relative macrocephaly, protruding forehead, feeding difficulties and body asymmetry. Variants in HMGA2 are a rare cause of SRS and despite strong evidence for the crucial role of HMGA2 in growth regulation, its functional role in human linear growth is unclear.Methods: Patients w...

Background: Microdeletions of the chromosomal region 2q31.1 are rare. Growth retardation is reported in the majority of these patients, but information about growth hormone status is not given in the literature. Other typical features in 2q31.1 deletion syndrome are developmental delay, limb abnormalities, short palpebral fissures, heart defects, among others.Objective and hypotheses: A 12 year old girl presented at the age of 7 years with severe growth ...

Case presentation: We recently started a 9-year-old girl with hypoparathyroidism due to a mutation in the PTH gene on a pump therapy with 1–34 rhPTH. She has received calcitriol and calcium since the age of 4 months. Bilateral nephrocalcinosis stage II/III was diagnosed at a young age. So far, her renal function remains normal. During the last 18 months symptomatic hypocalcemic episodes have become more frequent despite increased calcium and calcitriol doses. Continuous r...

Background: X-linked hypophosphatemia (XLH) is a rare metabolic bone disease which is caused by inactivating mutations in Phosphate-regulating neutral endopeptidase, X-linked (PHEX). Due to dysregulation of Fibroblast growth factor 23 (FGF-23), increased systemic levels of FGF-23 lead to chronic renal phosphate wasting and to impaired activation of 25OH-Vitamin D (25OHD). As a result, patients suffer from multiple musculoskeletal symptoms such as long bone def...

Background: Overweight as a predictor of adverse cardiovascular outcome is of particular interest in gender-affirming healthcare. Transgender populations are at a higher risk for obesity, possibly due to a combination of minority stress, psychiatric comorbidity, and lifestyle differences, such as reluctance to participate in group sports as a consequence of social withdrawal. However, robust auxological data in transgender adolescents is scarce.<p class="a...

Background: Juvenile idiopathic arthritis (JIA) is a heterogeneous group of diseases associated with an increase of inflammatory cytokines that may to influence child growth. However this is already known, to date auxological data published of JIA patients during biologic treatment are incomplete and very heterogeneous.Objective and hypotheses: To evaluate the auxological features in a selected cohort of patients with JIA treated with biologic drugs....

Background: McCune–Albright syndrome (MAS) is defined by skin, bone and glands disorders, due to activating mutations in the GNAS1. Clinical presentation is heterogeneous. Reports about GH excess in MAS patients are scarce.Case report: We present the case of an 8-year-old male, previously diagnosed with mono-ostotic fibrous dysplasia of the skull, referred due to signs of pubertal development since the age of 6. The patient presented only 1...

Background: Postnatal linear growth is characterized by a steady decline of growth velocity in healthy individuals, with the exception of sex-steroid induced pubertal growth. Pharmacologic interventions in growth disorders are limited to systemic application of growth factors such as growth hormone, and CNP analogues in conditions with FGFR3 overactivation. Tyrosine kinase receptor inhibitors (TKI) represent a heterogenous group of drugs, mostly used for oncol...

Among the acquired causes of growth hormone deficiency (GHD) in childhood, the most common reasons are benign or semimalign pituitary tumors - first and foremost craniopharyngiomas or dysgerminomas. We report on a very rare differential diagnosis in a 11-year-old, prepubertal boy with a growth arrest (1.1 cm in 2 years, height - 2.38 SDS). 2 growth hormone stimulation tests confirmed GHD (2,7 and 2,3 ng/ml after priming). There was mild central hypothyroidism (fT4 1.04 ng/dl, ...

Background: Neuroendocrine tumors from adrenal and extra-adrenal chromaffin cells are characterized by overproduction of catecholamines (CA), leading to the increase of urinary O-methylated metabolites (uO-Met) excretion, reliable biomarkers for the initial screening, diagnosis and monitoring of patients with pheochromocytoma and paragangliomas (PPGLs).Objective: To develop and validate a UHPLC-MS/MS method for the simul...