hrp0086p1-p806 | Syndromes: Mechanisms and Management P1 | ESPE2016

Metabolic Health and Safety of GH-Treatment in Silver-Russell Syndrome

Smeets Carolina , Renes Judith , Hokken-Koelega Anita

Background: Silver-Russell syndrome (SRS) is characterized by small for gestational age (SGA) birth, severe short stature and variable dysmorphic features. Children born SGA are at increased risk to develop adult-onset disease at a relatively young age. Growth hormone (GH)-treatment is a registered growth-promoting therapy for short children born SGA, including SRS. Data on metabolic health and long-term safety of GH-treatment in SRS are limited.Objectiv...

hrp0082p2-d1-409 | Growth Hormone | ESPE2014

Ternary Complex Formation and IGFBP3 Proteolytic Activity During Childhood: Age-Dependent Changes

Renes Judith S , van Doorn Jaap , Hokken-Koelega Anita C S

Background: IGF1 is mainly sequestered in a 150 kDa ternary complex with IGFBP3 and the acid-labile subunit (ALS). Dissociation of IGF1 from the ternary complex is in part regulated by proteolysis of IGFBP3, which reduces its affinity for IGF1. Short children born SGA have lower IGF1 and IGFBP3 levels compared to healthy peers.Objective and hypotheses: To determine complex formation in healthy normal statured children, and assess variables influencing co...

hrp0084fc7.3 | Growth-promoting therapies | ESPE2015

IGF1 Levels, Complex Formation, and IGF-Bioactivity in GH-Treated Children with Prader–Willi Syndrome

Bakker Nienke , van Doorn Jaap , Renes Judith , Donker Truus , Hokken-Koelega Anita

Background: Children with Prader–Willi syndrome (PWS) attain high serum immunoreactive IGF1 levels during standard dose GH treatment, which leads to concern, but lowering the dose, deteriorates their body composition.Objective and hypotheses: To evaluate serum IGF1, IGFBP3 and acid-labile subunit (ALS) levels, complex formation and IGF-bioactivity in GH-treated PWS children. We hypothesized that GH-treated children with PWS have a normal IGF-bioacti...

hrp0097p1-127 | Growth and Syndromes | ESPE2023

Effects and safety of growth hormone (GH) treatment in 6 children with pycnodysostosis

Renes Judith , Sas Theo , Clement-de Boer Agnes , Zwaveling-Soonawala Nitash , van der Kaay Danielle , Hokken-Koelega Anita

Background: Pycnodysostosis is a very rare autosomal recessive skeletal dysplasia caused by cathepsin K deficiency. It is characterized by extreme short stature resulting in an adult height in males typically <150 cm and in females <134 cm. Bone-fragility and frequent fractures are present. There are few case-reports on the effects of GH treatment.Objective: To evaluate the effect and safety of GH in 6 patients wit...

hrp0095p2-158 | Growth and Syndromes | ESPE2022

Global recall of a growth hormone jet delivered device: experiences with children forced to switch from a needle free system to a growth hormone device with needle.

P. van Eck Judith , S. Renes Judith , J.C. Sas Theo , L.T. van den Akker Erica , C.M. van der Kaay Daniëlle

Introduction: Growth hormone (GH) treatment is essential for growth in children with GH deficiency. Also short children born small for gestational age (SGA), and children with syndromes like Turner Syndrome (TS), Noonan Syndrome (NS) and Silver Russel Syndrome (SRS) can benefit from GH treatment. For children with needle anxiety GH delivered by a jet device can be a solution for the daily subcutaneous treatment for many years. In 2021, a global recall of the o...

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.</...

hrp0097p1-318 | Growth and Syndromes | ESPE2023

15-year experience with the IGF1 generation test in the Netherlands

Kruijsen Anne , de Groote Kirsten , Punt Lauren , van Trotsenburg Paul , Pijnenburg-Kleizen Karijn , Bocco Gianni , Berkenbosch Lizanne , van Setten Petra , Claahsen - van der Grinten Hedi , van der Kaay Danielle , Schott Nina , van Tellingen Vera , van Mill Edgar , van der Heyden Josine , Brandsma Annelies , Hendriks Yvonne , Losekoot Monique , van Duyvenvoorde Hermine , Hokken-Koelega Anita , Renes Judith , Maarten Wit Jan , de Bruin Christiaan , Joustra Sjoerd

Introduction: Among children with short stature, some show persistent IGF-I levels <-2.0 SDS despite a normal growth hormone (GH) response in a stimulation test. This may be caused by conditions that could benefit from recombinant human GH (rhGH) therapy (e.g. GH neurosecretory dysfunction, bioinactive GH, partial GH insensitivity). Therefore, the IGF-I generation test (IGFIGT) was implemented in 2006 using a national, standardized protocol. Children with a...