hrp0084lbp-1259 | Late Breaking Posters | ESPE2015

Adrenal Steroid Precursors Accumulating in Congenital Adrenal Hyperplasia lead to Transactivation of the Glucocorticoid Receptor

Pijnenburg-Kleizen Karijn , Engels Manon , Mooij Christiaan , Griffin Aliesha , Krone Nils , Span Paul , van Herwaarden Antonius , Sweep Fred , Claahsen-van der Grinten Hedi

Background: Congenital adrenal hyperplasia (CAH) patients are clinically often less severely affected by cortisol deficiency than anticipated from their enzymatic defect.Objective and hypotheses: We hypothesize that adrenal steroid hormone precursors that accumulate in untreated or poorly controlled CAH have glucocorticoid activity and partially compensate for cortisol deficiency. We aimed to determine the in vitro binding, translocation and tra...

hrp0094p2-452 | Thyroid | ESPE2021

Complications after pediatric thyroidectomy: lymph node dissection is a risk factor for permanent hypocalcemia

van Rooijen Jesse J. , Paul van Trotsenburg A.S. , Zwaveling-Soonawala Nitash , Nieveen van Dijkum Els J.M. , Engelsman Anton F. , Derikx Joep P.M. , Mooij Christiaan F.

Background: Thyroidectomy is a definitive treatment option in some benign thyroid disorders and the definitive treatment option for thyroid cancer. As postoperative mortality is extremely rare data on postoperative complications and long-term health consequences are important.Objective: To evaluate the frequencies of short- and long-term complications, and their risk factors in pediatric patients (0-18 years) who underwent a thyroidectomy in a tertiary c...

hrp0094p2-308 | Growth and syndromes (to include Turner syndrome) | ESPE2021

Evidence that non-syndromic familial tall stature has an oligogenic origin including ciliary genes

Weiss Birgit , Eberle Birgit , Roeth Ralph , de Bruin Christiaan , Lui Julian C , Paramasivam Nagarajan , Hinderhofer Katrin , van Duyvenvoorde Hermine A , Baron Jeffrey , Wit Jan M , Rappold Gudrun A ,

Human growth is a complex trait. A considerable number of gene defects have been shown to cause short stature, but there are only few examples of genetic causes of non-syndromic tall stature. Besides rare variants with large effects and common risk alleles with small effect size, oligogenic effects may contribute to this phenotype. Exome sequencing was carried out in a tall male (height 3.5 SDS) and his parents. Filtered damaging variants with high CADD scores were validated b...

hrp0097fc11.2 | GH and IGFs | ESPE2023

Clinical characteristics of heterozygous ACAN gene variants and longer-term response to growth hormone treatment: real-world data

Renes Judith , Reedijk Ardine , Losekoot Monique , Kant Sarina , van der Steen Manouk , van der Kaay Danielle , Hokken-Koelega Anita , van Duyvenvoorde Hermine , de Bruin Christiaan

Background: Heterozygous pathogenic variants in the ACAN gene underlie disproportionate short stature with characteristically accelerated bone age (BA) maturation and/or osteochondritis dissecans (OD)/early-onset osteoarthritis (OA).Objective: To describe the phenotypic spectrum and assess the response and safety of growth hormone (GH) treatment in children with a heterozygous pathogenic ACAN variant.</...

hrp0097p1-119 | Growth and Syndromes | ESPE2023

Clinical features and response to rhGH treatment in ten patients with heterozygous IGF1 variants

Punt Lauren , van der Kaay Danielle , van Setten Petra , Bocco Gianni , de Munnik Sonja , Losekoot Monique , van Duyvenvoorde Hermine , de Bruin Christiaan , Maarten Wit Jan , Joustra Sjoerd

Introduction: Patients carrying homozygous IGF1 loss-of-function mutations are extremely rare and show severe pre- and postnatal growth failure, microcephaly, developmental delay, retrognathia and sensorineural deafness. Heterozygous variants in IGF1 appear to be more common in short stature, but only few cases have been reported in detail. Therefore, clinical features and growth response to recombinant human growth hormone (rhGH) therapy are...

hrp0092rfc13.2 | Adrenals and HP Axis | ESPE2019

Development of Novel Non-Invasive Strategies for Monitoring of Treatment Control in Patients with Congenital Adrenal Hyperplasia

Bacila Irina-Alexandra , Adaway Jo , Hawley James , Mahdi Sundus , Acerini Carlo L , Krone Ruth , Patel Leena , Alvi Sabah , Randell Tabitha , Gevers Evelien , Dattani Mehul , Cheetham Timothy , Kyriakou Andreas , Schiffer Lina , Ryan Fiona , Crowne Elizabeth , Davies Justin H , Ahmed S Faisal , Keevil Brian , Krone Nils P

Introduction: Glucocorticoid treatment remains a challenging aspect in the management of congenital adrenal hyperplasia (CAH). Current strategies for monitoring treatment are suboptimal and rely largely on frequent blood tests, which are traumatising in children and young persons (CYP). Recent evidence indicates a crucial role of 11-oxygenatedC19 androgens in the pathogenesis of CAH.Aim: To explore the use of 11-oxygenat...

hrp0092p1-60 | Fat, Metabolism and Obesity | ESPE2019

The Effect of Improved Metabolic Risk Factors and Metformin Therapy on Circulating Hepatokines in Obese, Insulin-Resistant Adolescents

Kilinç Suna , Kirankaya Aysegül , Atay Zeynep

Introduction: The molecular mechanisms underlying insulin resistance (IR) is complex and has not been fully elucidated yet. The experimental studies point out the role of liver-derived proteins, called hepatokines.Aims: To compare metabolic parameters and hepatokines levels in obese adolescents and healthy controls and to assess the effect of metformin therapy on plasma hepatokines levels in obese, insulin-resistant adol...

hrp0092p2-34 | Bone, Growth Plate and Mineral Metabolism | ESPE2019

Chronic Bone Disease in Pediatric Sickle Cell Disease Including a Case of Successful Bisphosphonate Therapy

Grimbly Chelsey , Girgis Rose , Jaremko Jacob L , Bruce Aisha

Background: Avascular necrosis (AVN) is common in Sickle Cell Disease (SCD), frequently involving the femoral and humeral head and less commonly involving the spine. AVN leads to joint collapse, chronic pain and disability, and often requires joint replacement in early adulthood. There are no medical therapies for AVN in SCD despite the high burden of disease and there are no published reports of bisphosphonate therapy in this condition....

hrp0089p2-p199 | Fetal, Neonatal Endocrinology and Metabolism P2 | ESPE2018

Evaluation of Vitamin D Status and Its Correlation with Gonadal Function in Children at Mini-puberty

Kılınc Suna , Atay Enver

Objective: Most recent evidence from conducted in human and animal studies suggests that vitamin D has a potential role in the physiology of reproductive function in both genders. We investigate the role of vitamin D in male and female gonadal function at mini-puberty period with particular emphasis on production of sex steroids and gonadal peptide hormones. Additionaly, this study evaluated serum levels of luteinizing hormone (LH), follicle-stimulating hormone (FSH), estradio...

hrp0086p1-p460 | Fat Metabolism and Obesity P1 | ESPE2016

The Association between Insulin Resistance and Lower Extremity Muscle Strength, Static and Dynamic Standing Balances in Obese Adolescents

Akinci Aysehan , Ersoy Yuksel , Dundar Ismaıl

Background: Obesity is characterized by insulin resistance of target tissues, such as skeletal muscle, adipose tissue and liver. Skeletal muscle tissue is responsible for approximately 75% of whole body insulin-stimulated glucose uptake. Previously, it has been shown that skeletal muscle strength is significantly associated with insulin resistance in type-2 diabetics and non-diabetics.Objective and hypotheses: To examine the relationship between insulin ...