hrp0097p1-313 | Growth and Syndromes | ESPE2023

Genetic aetiology of short stature in children from consanguineous families from Kurdistan, Iraq

Anne Amaratunga Shenali , Hussein Tayeb Tara , Dusatkova Petra , Drabova Jana , Elbova Lenka , Pruhova Stepanka , Lebl Jan

Introduction: Linear growth is a complex process involving the interplay of genetic, epigenetic, and environmental factors. Current knowledge sheds importance to the GH-IGF-1 axis, chondrocyte regulation and extra-cellular matrix in the growth plate, and other fundamental intracellular processes. Despite these advancements, the genetics of short stature are not fully understood. This study aims to contribute by investigating a unique cohort of children from co...

hrp0095p1-43 | Diabetes and Insulin | ESPE2022

The spectrum of paediatric diabetes subtypes from a single center in a highly consanguineous region

Anne Amaratunga Shenali , Hussein Tayeb Tara , Nabaz Muhamad Sediq Rozhan , Karem Hama Salih Fareda , Dusatkova Petra , Pruhova Stepanka , Lebl Jan

Introduction: Monogenic diabetes has been estimated to be 1 - 6% of all diabetic cases in European countries which are primarily non consanguineous populations, while the incidence in highly consanguineous areas is insufficiently defined. However, the genetic aetiology of monogenic diabetes has been shown to be widely different in areas with prevalent consanguinity compared to areas with lower rates. In this single-centre study, we aimed to evaluate the preval...

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...

hrp0089p1-p033 | Bone, Growth Plate & Mineral Metabolism P1 | ESPE2018

Comparison of Manual and Automated Bone Age Assessment in 1285 Children and Adolescents Aged 5 to 16 Years

Maratova Klara , Zemkova Daniela , Lebl Jan , Soucek Ondrej , Pruhova Stepanka , Kolouskova Stanislava , Snajderova Marta , Krasnicanova Hana , Sumnik Zdenek

Background: Skeletal maturation is the most reliable indicator of biological age in children and adolescents. The evaluation of hand and wrist X-Ray according to Tanner-Whitehouse (TW3) or Greulich-Pyle (GP) are the most commonly used methods for biological age assessment. Automated bone age assessment has recently become increasingly popular, however a large independent study comparing automated and manual evaluation of bone age is still missing. The aim of this study was to ...

hrp0089p3-p242 | Growth & Syndromes P3 | ESPE2018

A Case of Hutchinson-Gilford Progeria Syndrome (HGPS) due to a Pathogenic LMNA Variant c.433G>A (p.Glu145Lys): Growth Hormone Administration Failed to Improve Growth and Long-term Outcome

Toni Ledjona , Dušatkoa Petra , Novotna Dana , Zemkova Dana , PrUhova Štěpanka , Lebl Jan

Hutchinson-Gilford Progeria Syndrome (HGPS) is an extremely rare condition (estimated incidence 1:4–8 million), caused by mutations in LMNA gene, which leads to premature aging. Median life expectancy is shortened to 13 years due to vascular complications such as stroke or myocardial infarction. We present below the history of a child born with a pathogenic LMNA variant c.433G>A (p.Glu145Lys). A male patient was referred due to failure to thrive and low growth velocit...

hrp0082p1-d1-183 | Perinatal and Neonatal Endocrinology | ESPE2014

Molecular Genetic Analysis of Czech Patients with Congenital Hyperinsulinism: Surprisingly High Incidence of HNF1A Mutations

Rozenkova Klara , Dusatkova Lenka , Dusatkova Petra , Kytnarova Jitka , Obermannova Barbora , Rypackova Blanka , Sumnik Zdenek , Lebl Jan , Cinek Ondrej , Pruhova Stepanka

Background: Congenital hyperinsulinism of infancy represents a group of heterogeneous disorders characterized by over-secretion of insulin from pancreatic β cells causing severe hypoglycemia. Genetically, congenital hyperinsulinism is caused by defects in key genes regulating insulin secretion (ABCC8, KCNJ11, GLUD1, GCK, HADH, SLC16A1, UCP2, HNF4A, and non-constantly HNF1A). The aim of our pr...

hrp0082p2-d2-337 | Diabetes (1) | ESPE2014

The Length of the Deletion in the Region 17q Contributes to the Individual Variability of the Phenotype of Patients with Renal Cysts and Diabetes Syndrome (RCAD, HNF1B-MODY)

Pruhova Stepanka , Dusatkova Petra , Malina Michal , Slamova Zuzana , Blahova Kveta , Kotalova Radana , Dusek Jiri , Lebl Jan , Seeman Tomas , Cinek Ondrej

Background: The renal cysts and diabetes (RCAD) syndrome caused by defects in the HNF1B is characterized by a broad spectrum of clinical features. While heterozygous point mutations are relatively rare, we focused on gross deletions of the HNF1B that are determined by multiplex ligation probe-dependent amplification (MLPA). Rather importantly, the deletions most often extend beyond the single HNF1B, thus more deleted genes may participate in the clin...

hrp0084fc5.5 | Endocrine Oncology/Turner | ESPE2015

Hereditary Turner Syndrome 46,X,rec(X)inv(p21q28) in Six Women and Four Generations: Estimation of Skeletal Effects of GH Treatment

Stoklasova Judith , Kaprova Jana , Trkova Marie , Nedomova Vera , Zemkova Daniela , Soucek Ondrej , Matyskova Jana , Sumnik Zdenek , Lebl Jan

Background: Terminal Xp-deletion causes a variant of Turner syndrome (TS). Several studies described the associated phenotype: gonadal function is generally preserved and short stature is the major clinical feature.Case presentation: We present a family with vertical transmission of TS affecting six women in four subsequent generations. SNP-array indicates that the chromosomal aberration in this family includes terminal Xp-deletion and terminal Xq-duplic...

hrp0084p2-490 | Hypo | ESPE2015

Congenital Hyperinsulinism Caused by a Combination of Novel Heterozygous ABCC8 and KCNJ11 Mutations

Rozenkova Klara , Nessa Azizun , Obermannova Barbora , Dusatkova Lenka , Dusatkova Petra , Sumnik Zdenek , Lebl Jan , Hussain Khalid , Pruhova Stepanka

Background: Congenital Hyperinsulinism (CHI) is a common cause of persistent hypoglycaemia in the neonatal and infant period. It is most commonly caused by mutations in one of the KATP channel subunits, either SUR1 encoded by the gene ABCC8 or Kir6.2 encoded by the gene KCNJ11. Patients carrying mutations in the ABCC8 and KCNJ11 genes simultaneously have not been reported yet.Objective and hypotheses: Our aim was to describe the clinical pheno...