hrp0092rfc6.6 | Bone, Growth Plate and Mineral Metabolism Session 2 | ESPE2019

Genetic Aetiology Predicts Growth Hormone (GH) Treatment Outcomes in Children Born Small-For-Gestational-Age with Persistent Short Stature (SGA-SS). Lessons from a Single-Centre Cohort

Lebl Jan , Toni Ledjona , Plachy Lukas , Kucerova Petra , Elblova Lenka , Sumnik Zdenek , Kolouskova Stanislava , Snajderova Marta , Obermannova Barbora , Pruhova Stepanka

Background: SGA-SS, defined as birth weight and/or birth length below -2SD for gestational age and postnatal statural height below -2.5SD according to age- and sex-specific standards, is a heterogeneous condition reflexing exogenous (maternal, placental) or endogenous (foetal) inadequacies. Within the past two decades, a handful of genetic causes of SGA-SS have been elucidated. However, how each genetic aetiology impacts individual GH treatment outcomes awaits...

hrp0092rfc14.2 | Adrenals and HP Axis | ESPE2019

Deciphering Genetic Aetiology Among Children Born Small-For-Gestational-Age with Persistent Short Stature (SGA-SS): Phenotypic Characteristics at Diagnosis in a Large Single-Centre Cohort

Toni Ledjona , Plachy Lukas , Kucerova Petra , Elblova Lenka , Sumnik Zdenek , Kolouskova Stanislava , Snajderova Marta , Obermannova Barbora , Pruhova Stepanka , Lebl Jan

Background: SGA-SS is a heterogeneous condition defined as birth weight and/or birth length below -2SD for gestational age and postnatal height below -2.5SD, according to age-and sex-specific normative values. Despite being an indication for growth hormone (GH) therapy for 15 years, aetiology and prediction of treatment outcomes in most of SGA-SS children awaits elucidation.Aim: To decipher genetic aetiologies among a la...

hrp0098rfc5.5 | Growth and Syndromes | ESPE2024

Searching for associated dysmorphic and cardiac abnormalities in youth tall basketball players

Gregorova Katerina , Plachy Lukas , Dusatkova Petra , Maratova Klara , Kodytkova Aneta , Iurchenko Olena , Chaloupecky jr. Vaclav , Pruhova Stepanka

Introduction: Tall stature (TS) is defined as height taller > +2 SD. Subjects with TS are not usually genetically nor clinically tested unless having a suspicion for a specific disease. Young basketball players used to be healthy children who are exposed to enormous physical stress in trainings and matches.Aims: To evaluate the syndromic features via anthropometric assessment, to reveal possible hidden cardiologic ano...

hrp0095ha2 | The genetic landscape of children born small for gestational age with persistent short stature | ESPE2022

The genetic landscape of children born small for gestational age with persistent short stature

Toni Ledjona , Plachy Lukas , Dusatkova Petra , Anne Amaratunga Shenali , Elblova Lenka , Sumnik Zdenek , Kolouskova Stanislava , Snajderova Marta , Obermannova Barbora , Pruhova Stepanka , Lebl Jan

Background: Approximately 10% of children born small for gestational age (SGA) fail to catch-up nd remain short (SGA-SS). Although several mechanisms causing SGA-SS have been elucidated, the primary cause remains speculative in most cases.Aim: To decipher genetic causes of SGA-SS defined as birth length and/or birth weight <-2 SD for gestational age, and body height <-2.5 SD after the 3rd year of life within a larg...

hrp0095fc7.1 | Growth and Syndromes | ESPE2022

How to detect children with monogenic etiology of familial short stature?

Plachy Lukas , Petruzelkova Lenka , Dusatkova Petra , Maratova Klara , Zemkova Dana , Kolouskova Stanislava , Snajderova Marta , Obermannova Barbora , Sumnik Zdenek , Lebl Jan , Pruhova Stepanka

Introduction: Familial short stature (FSS) describes vertically transmitted growth disorders. Traditionally, polygenic inheritance is presumed, but monogenic inheritance seems to occur more frequently than expected. Clinical predictors of monogenic FSS have not been elucidated thus far. The aim of the study was to identify the monogenic etiology and its clinical predictors in FSS children.Patients and Methods: Of 747 pat...

hrp0095rfc7.3 | Growth and Syndromes | ESPE2022

Genetic analysis of children with clinically non-syndromic tall stature

Adamovicova Katerina , Plachy Lukas , Dusatkova Petra , Lebl Jan , Maratova Klara , Sumnik Zdenek , Neuman Vit , Petruzelkova Lenka , Snajderova Marta , Obermannova Barbora , Kolouskova Stanislava , Malikova Jana , Pruhova Stepanka

Introduction: The genetic investigation of tall stature (TS) is routinely indicated only in children with clinical suspicion of a specific syndrome associated with TS. After ruling out an endocrine disorder, the remaining tall children mostly receive a clinical diagnosis of “idiopathic” (ITS) or “familial” tall stature (FTS). The aetiology of their TS remains unknown.Aims: To elucidate genetic cau...

hrp0095p1-100 | GH and IGFs | ESPE2022

Aetiology of familial short stature in children diagnosed with growth hormone deficiency: what do the genes tell us?

Anne Amaratunga Shenali , Dusatkova Petra , Maratova Klara , Petruzelkova Lenka , Zemkova Dana , Kolouskova Stanislava , Snajderova Marta , Obermannova Barbora , Sumnik Zdenek , Lebl Jan , Pruhova Stepanka , Plachy Lukas

Introduction: The diagnosis of growth hormone deficiency (GHD) is complex, involving the combination of auxological, laboratory, and radiological findings. This includes growth hormone (GH) stimulation tests, which are done to confirm the diagnosis. It has been discussed that these tests have low specificity, potentially leading to false positive results. Therefore, children with GHD are regarded as a heterogeneous group with varied causes of short stature. Ne...

hrp0092fc12.2 | Growth and Syndromes (to include Turner Syndrome) | ESPE2019

NPR2 Gene Mutations were Found in 5.4% Children with Familial Short Stature

Plachy Lukas , Petruzelkova Lenka , Strakova Veronika , Elblova Lenka , Kucerova Petra , Obermannova Barbora , Kolouskova Stanislava , Snajderova Marta , Zemkova Dana , Dusatkova Petra , Lebl Jan , Sumnik Zdenek , Pruhova Stepanka

Introduction: C-type natriuretic peptide receptor encoded by NPR2 gene stimulates chondrocyte differentiation and hypertrophy and extracellular matrix production within the growth plate. The phenotypical spectrum of NPR2 mutations is broad, from severe autosomal recessive acromesomelic dysplasia to milder autosomal dominant growth disorders. Some children with NPR2 variants are treated with growth hormone (GH), however, with the inco...

hrp0094p1-57 | Bone B | ESPE2021

High rate of positive genetic findings in children born small for gestational age with persistent short stature (SGA-SS): Growth plate genes as key regulators of intrauterine growth

Toni Ledjona , Plachy Lukas , Dusatkova Petra , Anne Amaratunga Shenali , Kolouskova Stanislava , Obermannova Barbora , Snajderova Marta , Sumnik Zdenek , Pruhova Stepanka , Lebl Jan ,

Background: Ten percent of children born small for gestational age fail to catch-up and remain short during childhood (SGA-SS). Several genes causing SGA-SS have been described, however, in most cases, the mechanisms of prenatal and postnatal growth impairment remain unknown.Aim: To decipher genetic etiologies within a large single-center cohort of SGA-SS children in order to better understand the pathophysiological mech...

hrp0097fc4.2 | Growth and syndromes (to include Turner syndrome) | ESPE2023

Genetic and phenotypic features of children with familial tall stature

Gregorova Katerina , Plachy Lukas , Dusatkova Petra , Maratova Klara , Lebl Jan , Kolouskova Stanislava , Snajderova Marta , Sumnik Zdenek , Obermannova Barbora , Neuman Vit , Pruhova Stepanka

Introduction: Familial tall stature (FTS) is defined as height taller than +2 SD in a subject growing within his/her midparental height (MPH) with no apparent dysmorphic features. FTS is routinely not an indication for genetic investigation. However, some subtle dysmorphic features of various genetic disorders might be missed justifying the need for further investigation.Aims: To elucidate the genetic cause of FTS and to...