hrp0092p1-365 | GH and IGFs (2) | ESPE2019

De Novo Formation of Neutralizing IGF-I Antibodies During rhIGF-1 Treatment in a Girl with IGFALS Deficiency as Distinct Adverse Event Interfering with Growth Promotion

Mittnacht Janna , Breil Thomas , Choukair Daniela , Duffert Christin , Hwa Vivian , Rosenfeld Ron , Bettendorf Markus

Background: IGFALS deficiency is a rare cause of GH insensitivity (GHI). We report a German girl with short stature who was born as 2nd child at 40 weeks of gestation. Her Caucasian parents were unrelated and healthy (target height 168 cm, SDS 0.2). She was born appropriately sized for gestational age (49 cm, SDS -1.2; 2950 g, SDS-1.2). Height (104.8 cm; SDS -2.94) and height velocity (5.1 cm / year; SDS -1.67) were reduced at the age of 6 years.</p...

hrp0092p2-269 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Pseudo-Precocious Puberty in Children Triggered by Incidental Transdermal Contamination with Topical Sex Steroids Through Parents

Yakovenko Vira , Choukair Daniela , Duffert Christin , Mittnacht Jana , Klose Daniela , Bettendorf Markus

Introduction: Pseudo-precocious puberty may be triggered by either endogenous or exogenous sex steroids. Accidental ingestion of contraceptives, anabolic steroids or life style products containing sex steroids as well as transdermal transmission of topical sex steroids may cause early onset of secondary sexual development.Objective: To report the clinical course of incidental contamination with topical sex steroids in ch...

hrp0086fc7.3 | Gonads &amp; DSD | ESPE2016

Estrogen Insensitivity due to a Novel ESR1 Mutation in a Consanguineous Family from Algeria

Kherra Sakina , Ladjouze Asmahane , Bernard Valerie , Anane Tahar , Laraba Abdenour , Christin-Maitre Sophie

Background: Estrogen insensitivity syndrome is a form of functional estrogen deficiency which is caused by a defect in the estrogen receptor type α (ESR1). As a result of the receptor mutation, estrogens cannot be recognized and hence initiate their biological action on pubertal growth, skeletal maturation, and accrual of bone mass. A mutation in the gene encoding ESR1 has been described in only 2 cases (one man and one woman). We now describe the first family with ESR1 m...

hrp0086rfc1.6 | Adrenals | ESPE2016

Pediatric Patients with Congenital Adrenal Hyperplasia have Unfavorable Changes in their Cardiovascular Risk Profile

Mooij Christiaan F. , van Herwaarden Antonius E. , Roeleveld Nel , de Korte Chris L. , Kapusta Livia , Claahsen - van der Grinten Hedi L.

Background: Patients with congenital adrenal hyperplasia (CAH) are at risk of developing an unfavorable cardiovascular risk (CVR) profile. Data on the CVR profile in pediatric CAH patients are scarce.Objective and hypotheses: To evaluate the CVR profile of pediatric CAH patients.Method: A cross-sectional study in CAH patients (8–16 years) was performed (n=27). Blood was taken to evaluate several circulating CVR marker...

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...

hrp0095p1-273 | Fat, Metabolism and Obesity | ESPE2022

An adult-based genetic risk score for hepatic fat associates with liver and lipid traits in Danish children

Huang Yun , E. Stinson Sara , Bæk Juel Helene , A.V. Lund Morten , Aas Holm Louise , E. Fonvig Cilius , Grarup Niels , Pedersen Oluf , Christiansen Michael , Krag Aleksander , Stender Stefan , Holm Jens-Christian , Hansen Torben

Background and Aim: Several genetic variants associating with hepatic fat content in adults have been identified in genome-wide association studies. Their effects in children remain unclear. This study aimed to test the effect of genetic variants known to associate with hepatic fat in adults, individually and combined as a genetic risk score (GRS), on cardiometabolic traits, and to investigate the predictive ability of the GRS for hepatic steatosis in children...