hrp0086p1-p229 | Diabetes P1 | ESPE2016

Phenotypic Variability of Identical Mutations in the ABCC8 Gene in Two Families

Rozenkova Klara , Zapletalova Jirina , Dusatkova Lenka , Dusatkova Petra , Obermannova Barbora , Pruhova Stepanka , Lebl Jan , Sumnik Zdenek

Background: Mutations in the SUR1 subunit of the KATP channel encoded by the ABCC8 gene can result in diverse phenotypes ranging from Transient Neonatal Diabetes (TNDM) to type 2 diabetes in adulthood. These patients may benefit from sulphonylurea treatment.Objective and hypotheses: To describe the course of diabetes in two families with ABCC8 gene mutations and to assess the effect of sulphonylurea treatment.<p class="ab...

hrp0082p1-d2-74 | Diabetes (1) | ESPE2014

Transient Hyperglycaemia Preceded by Neonatal Hyperinsulinaemic Hypoglycaemia in an Infant with a Novel HNF1A Mutation

Obermannova Barbora , Rozenkova Klara , Dusatkova Petra , Pruhova Stepanka , Sumnik Zdenek , Lebl Jan

Background: The phenotype associated with heterozygous HNF1A gene mutations has recently been extended to include neonatal hyperinsulinaemic hypoglycaemia (HH) in addition to maturity-onset diabetes of the young (HNF1A–MODY).Objective and hypotheses: The baby boy was born at 38th week of gestation; BW 4110 g; BL 53 cm (LGA). The mother had gestational diabetes; her father is treated for diabetes mellitus from the age of 50 years. The boy de...

hrp0084fc13.1 | Thyroid | ESPE2015

Gain of Function STAT3 Mutation in a Boy with Early Onset Autoimmune Diabetes and Thyroid Disease, Prenatal and Postnatal Growth Impairment and Lymphoproliferation

Sediva Hana , Dusatkova Petra , Dusatkova Lenka , Sumnik Zdenek , Kolouskova Stanislava , Pruhova Stepanka , Lebl Jan

Background: Recently, a new monogenic cause of multiple immune system disorders and short stature has been attributed to germline activating mutations in the STAT3 gene encoding signal transducer and activator of transcription 3. Possible pathophysiological mechanisms include enhanced proliferation and activation of T-helper 17 cells and inhibition of regulatory T-cells by STAT3, as described in in vitro studies.Case presentation: The a...

hrp0094p2-297 | Growth and syndromes (to include Turner syndrome) | ESPE2021

The efficacy and safety of recombinant biosimilar growth hormone treatment in children with GHD and SGA: a Czech retrospective national longitudinal study

Snajderova Marta , Zemkova Daniela , Sumnik Zdenek , Zapletalova Jirina , Pomahacova Renata , Pruhova Stepanka , Cermak Jakub , Sadovska Barbora ,

Objectives: Recombinant growth hormone (rhGH) treatment helps to achieve a final height close to the parental growth potential in children with GH deficiency (GHD) and small for gestational age (SGA). Less is known about efficacy and safety of long term therapy with biosimilar rhGH. The aim of our study is to assess height gain and safety of therapy with biosimilar rhGH (Omnitrope®, Sandoz) in Czech children with GHD and SGA over the first three years of ...

hrp0097rfc9.4 | Diabetes and insulin 2 | ESPE2023

Clinical and genetic characteristics of patients suspected to have Maturity-Onset Diabetes of the Young in the Czech Republic

Dusatkova Petra , Vesela Klara , Kolarova Katerina , Sumnik Zdenek , Lebl Jan , Pruhova Stepanka

Introduction: Maturity-Onset Diabetes of the Young (MODY) represents the most frequent form of monogenic diabetes. Genetic testing of Czech patients with clinical suspicion on MODY began 22 years ago. Aim of the study was to describe the prevalence of MODY subtypes among referred probands with diabetes and to define their clinical characteristics and possible differences.Methods: Clinical criteria for genetic testing of ...

hrp0098p1-31 | Diabetes and Insulin 2 | ESPE2024

Rare forms of (non)syndromic monogenic diabetes in the Czech registry of patients susceptible for monogenic diabetes

Pruhova Stepanka , Dusatkova Petra , Vesela Klara , Kolarova Katerina , Lebl Jan , Sumnik Zdenek

Introduction: Monogenic diabetes accounts for approximately 3.5% of patients manifesting diabetes till 30 years. Majority of these patients had subtypes of Maturity-Onset Diabetes of the Young (MODY) caused by disruption of the genes encoding glucokinase (GCK), hepatocyte nuclear factor 1-alpha (HNF1A) or 4-alpha (HNF4A), respectively. However, also rare forms of monogenic diabetes could be detected particularly thanks to massive par...

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 &amp; 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 ...

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...