ESPE Abstracts

Introduction: Laron Syndrome (LS) or primary growth hormone (GH) insensitivity is an autosomal recessive disorder due to variants in the GH-receptor (GHR) gene or to post-receptor defects. LS prevalence is estimated 1-9/1000000. We report a case of LS with a missense variant in the GHR gene not previously described.Case: female, Turkish, was referred to our clinic for short stature. Born at term, birth ...

We present the case of a now 20 months old female patient, in whom we diagnosed MAS on the basis of pseudoprecocious puberty and hypercorticism at the age of 10 months. Medical history and photodocumentation suggested that symptoms of hypercorticism were present soon after birth. At age 4 months thelarche had occurred, followed by vaginal bleeding at age 5 months. At first presentation at our outpatient clinic, the girl was severely short (-5 SDS), with only minimally advanced...

Purpose: Clinical problems caused by impaired molecular function of inborn errors of immunity (IEI) genes are not limited to the immunological system but can also affect the endocrine system. An autosomal recessive form of severe congenital neutropenia also known as Kostmann syndrome (KS) is caused by mutations in the gene encoding the mitochondrial protein HAX1. Knowing that most endocrine disorders associated with IEI are hypofunction, a close cooperation be...

Introduction: Longitudinal skeletal growth is achieved by enchondral ossification in epiphyseal growth plates (GP) of long bones and vertebrae. These highly organized cartilaginous tissues contain chondrocytes of all differentiational stages classified in three distinct zones named resting, proliferative and hypertrophic. Separated analysis of individual zones is essential in basic GP research thus efficiency of different zonal separation methods confers high ...

Objective: Young women with Turner syndrome are known to be especially at risk for lost of follow-up. Recent literature indicates that there are disparities regarding transition readiness between different chronic conditions. To assess differences in transition readiness might be crucial for identifying special needs in specific patient cohorts when preparing for transfer to adult care. Our hypothesis was, that young women with Turner syndrome would score lowe...

Context: Quality of survival (QoS) is frequently impaired in childhood-onset craniopharyngioma (CP) patients due to sequelae caused by the hypothalamic syndrome. The debate, whether primary hypothalamic involvement (HI) has apriori prognostic impact or surgical hypothalamic lesions (HL) determine outcome, is controversial. Accordingly, we analyzed, whether CP patients at high risk for hypothalamic obesity due to primary HI of anterior and posterior hypothalamic structures bene...

Background: Hyperphosphatemic conditions such as chronic kidney disease are associated with muscle wasting and impaired life quality. While muscle regeneration relies on myogenic progenitor recruitment, the effects of high phosphate loads on this process has not been investigated in detail. This study aims to clarify the direct effectsof hyperphosphatemic conditions on skeletal myoblast differentiation in an murine cell model system.Material and methods:...

Background: Cell-mediated initiation of enchondral ossification is essential for growth plate maturation. The matrix mineralization inhibitors matrix Gla protein (MGP) and osteocalcin (OC) represent key regulators of matrix mineralization and are highly expressed in growth plate chondrocytes. Pharmacological or nutritional phylloquinone (K1) depletion is known to affect skeletal mineralization by reduced gamma-carboxilisation of MGP and OC. Constituents of mineral matrix such ...

Background: Difficulties in transition of adolescent Turner Syndrome (TS) patients to adult health care has been reported in many studies.Objective and hypotheses: We conducted a medical and psychological follow-up of adult patients with Turner Syndrome which had been treated at our tertiary pediatric endocrine centre.Method: We screened for expected comorbidities and provided a questionnaire asking for current medical care. Furthe...

Background: Progressive osseous heteroplasia (POH) is a rare condition characterized by extensive heterotopic ossification (HO) of connective tissues. Associations of HO and Albright hereditary dystrophy (AHO) lead to the identification of GNAS mutations to be causative for ectopic none formations. The highly imprinted GNAS locus is known to cause a broad spectrum of pathologic conditions, including pseudohypoparathyrodism (PHP), pseudoPHP AHO. While PHP is caused by maternal ...