hrp0094p1-59 | Bone B | ESPE2021

Cartilage -specific knockout of SIRT1 significantly reduces bone quality and catch-up growth efficiency

Shtaif Biana , Bar-Maisels Meytal , Gabet Yankel , Hiram-Bab Sahar , Yackobovitch-Gavan Michal , Phillip Moshe , Gat-Yablonski Galia ,

Background: Spontaneous catch-up (CU) growth occurs when a growth-restricting factor is resolved. However, its efficiency is sometimes inadequate and growth deficits remain permanent. The therapeutic toolbox for short stature is currently very limited. Our previous studies using a nutrition-induced CU growth model showed that the level of sirtuin-1 (SIRT1) was significantly increased in food-restricted animals and decreased during CU growth.<p class="abste...

hrp0094p2-201 | Fat, metabolism and obesity | ESPE2021

Weight status and body composition of children and adolescents during the COVID-19 pandemic

Brener Avivit , Azoulay Erez , Yackobovitch-Gavan Michal , Lopez Adar , Sheppes Tamar , Yaacov Hadar , Gilboa Inbar , Waksman Yarden , Lebenthal Yael ,

Background: The COVID-19 pandemic has tremendous effects on lifestyle that could potentially cause health-related problems. Therefore, extreme preventive measures were taken, including the closure of schools and after school activities. This dramatic alteration in daily routine could lead to adverse consequence of increasing obesity. In this study we aimed to investigate the change in weight status and body composition parameters of children and adolescents du...

hrp0097p1-492 | GH and IGFs | ESPE2023

GH stimulation testing: is it time to change the paradigm?

Smuel Keren , Lazar Liora , Yackobovitch-Gavan Michal , Tirosh Liron , Phillip Moshe , Oron Tal , Sarah Flanagan , Jayne Houghton

Background: The efficacy of growth hormone (GH) treatment in short, healthy children diagnosed with growth hormone deficiency (GHD) or those meeting the criteria of idiopathic short stature (ISS) suggest that an overlap exists between these two conditions. Although flawed and inconsistent, growth hormone stimulation tests (GHST) are the key diagnostic tool differentiating between GHD and ISS affecting clinical decisions such as treatment eligibility and dose.<...

hrp0097p1-588 | Thyroid | ESPE2023

The effect of gestational Graves’ disease on the mother-infant dyad: a retrospective observational cohort study

Cohen-Sela Eyal , Brener Avivit , Raviv Orian , Yackobovitch-Gavan Michal , Almashanu Shlomo , Marom Ronella , Anteby Matan , Hiersch Liran , Lebenthal Yael

Context: Pregnancy and parturition involve a complex interplay between maternal health and that of her offspring. Graves’ disease and its management have been associated with adverse pregnancy, labor and delivery, as well as neonatal outcomes. Adaptation of the hypothalamic-pituitary-thyroid axis can be reflected by measuring thyroid function levels in newborn screening (NBS).Objective: To investigate the character...

hrp0089p1-p082 | Diabetes &amp; Insulin P1 | ESPE2018

The Comparison of the Occurrence of Beta Cells Autoantibody and Regulatory T Cells (CD4+CD25+FoxP3+) in Patients with Type 1 Diabetes Mellitus, their Siblings and Healthy Children

Sieniawska Joanna , Krzewska Aleksandra , Ben-Skowronek Iwona

Background: Regulatory T cells (Treg) of phenotype CD4+CD25+FoxP3+ involves active suppression of excessive immune response. The population of Treg cells from patients with type 1 diabetes (DM1) have numeric and functional abnormalities. Although there are many reports of investigations on human and animal populations, the role of regulatory T cells in the development of type 1 diabetes is still unclear.Objective and hypotheses: The aim of the study is t...

hrp0089p1-p084 | Diabetes &amp; Insulin P1 | ESPE2018

The Comparison of the Occurrence of Beta Cells Autoantibody and Natural Killer Cells in Patients with Type 1 Diabetes Mellitus, Their Siblings and Healthy Children

Sieniawska Joanna , Krzewska Aleksandra , Ben-Skowronek Iwona

Background: Natural killer cells are a type of cytotoxic lymphocyte critical to the innate immune system. NK cells from patients with type 1 diabetes (DM1) have numeric and functional abnormalities. However, little is known about the number of NK cells in healthy siblings of children with DM1.Objective and hypotheses: The aim of the study is to compare the population of NK cells and the correlation between NK cells and beta cells autoantibody in healthy ...

hrp0086p2-p262 | Diabetes P2 | ESPE2016

Comparison of the Occurrence of Islet Autoantibodies in Siblings of Patients with Type 1 Diabetes Mellitus to Healthy Children

Krzewska Aleksandra , Sieniawska Joanna , Ben-Skowronek Iwona

Objective and hypotheses: The aim of the study is comparison of the occurrence of islet autoantibodies in healthy siblings of children with T1DM to healthy children from non-diabetic families.Method: Determination of anti-decarboxylase of the glutamic acid antibodies (anti GAD-Ab), anti-protein tyrosine phosphatase (anti IA2), and antibodies against zinc transporter eight (anti ZnT8) in 75 children with T1DM, their siblings – 105, and 77 healthy chi...

hrp0082fc13.5 | Thyroid | ESPE2014

The Ultrastructural Changes in Thyroid Cells in the Course of Damage in Hashimoto’s Thyroiditis

Ben-Skowronek Iwona , Szewczyk Leszek , Korobowicz Elzbieta

Background: The development of the Hashimoto’s thyroiditis is the result of the damage to thyrocytes, apoptosis, and autoimmune cytotoxic action of lymphocytes.Objective and Hypotheses: The aim of the study is to present ultrastructural changes in thyroid cells in the course of damage in Hashimoto’s thyroiditis.Method: The study involved 40 children: 20 children with Hashimoto’s thyroiditis and 20 children as a contr...

hrp0084p2-285 | Diabetes | ESPE2015

Implementation of Effective Transition from Paediatric to Adult Diabetes Care: Epidemiological and Clinical Characteristics – A Pioneering Experience in North Africa

Leila Essaddam , Zinet Turki , Zohra Fitouri , Claude Ben Slama , Nadia Matoussi , Saayda Ben Becher

Background: Diabetes mellitus (DM) is a chronic metabolic disorder requiring daily care to prevent both acute and chronic complications. Healthcare providers are challenged to manage the transition of adolescents from paediatric to adult diabetes services. Until recent date, this change of the medical team was lived by teenagers as a tearing and a discontinuity of the medical care.Objective and hypotheses: While centres providing structured integrated pa...

hrp0095fc6.2 | Sex Development and Gonads | ESPE2022

Predictive value of ovarian reserve parameters for follicle detection in ovarian tissue cryopreservation

Gruber Noah , Zajicek Michal , Volodarsky-Perel Alexander , Shai Daniel , Dick-Necula Daniela , Raanani Hila , Karplus Gideon , Kassif Eran , Weisz Boaz , Meirow Dror

Introduction: In youth, primary ovarian insufficiency (POI) is due to genetic, autoimmune, iatrogenic, and idiopathic etiologies. When POI is diagnosed early with evidence of an ovarian reserve, fertility preservation can be offered. When the girl is premenarchal, the preferred fertility preservation method is ovarian tissue cryopreservation (OTC) containing primordial follicles. In the past, when OTC was performed in an unselected group of children and adoles...