hrp0097p1-197 | Thyroid | ESPE2023

Effects of methimazole therapy on effector T and B regulatory cells in pediatric patients with Graves' disease

Stożek Karolina , Grubczak Kamil , Starosz Aleksandra , Bossowski Filip , Moniuszko Marcin , Bossowski Artur

Introduction: The incidence of autoimmune thyroid diseases (ATD) is constantly rising. Graves’ disease (GD) remains the most common cause of thyrotoxicosis in pediatric population, but the exact pathogenesis of GD is still not fully understood. The immunological basis of ATD assumes an imbalance between effector and regulatory T lymphocytes. B regulatory cells (Breg) are able to suppress the pro-inflammatory properties of effector T cells. Methimazole (M...

hrp0097p1-589 | Thyroid | ESPE2023

Thyrotropin receptor stimulating antibodies in pediatric patients with Graves’ diseases using ultra-rapid turbo bioassay

Bossowski Artur , Hatun Burak , Sawicka Beata , Stożek Karolina , Bossowski Filip , J Kahaly George

Background: Thyrotropin receptor (TSH-R) stimulating autoantibodies (TSAb) are present in 90-100% of patients with Graves’ disease (GD). TSAb are functional, impact thyroid function, and are clinically relevant. This study we performed in a pediatric patients with dynamic of Graves’ disease before and during methimazole therapy and in patient with Hashimoto’s thyroiditis using a novel and ultra-rapid TSAb andTBAb bioassay.<p class="abstex...

hrp0089p1-p132 | Fat, Metabolism and Obesity P1 | ESPE2018

Non-Invasive Measurements of Central Blood Pressure with Arterial Stiffness Indicators as a New Research Tool for Predicting Cardiovascular Risk in Children with Type 1 Diabetes Mellitus and Obesity

Noiszewska Klaudyna , Puchalski Mateusz , Skolimowska Anna , Bossowski Artur

Introduction: The main problem of contemporary diabetology is to prevent chronic complications of carbohydrate metabolism disorders according to DM1 and obesity (pre-disposing for DM2). The task is to find simple tools that allow rapid identification of vascular lesions and early treatment intervention.Aim of the study: The aim of the study was to evaluate parameters of CBP in patients with DM1 and obesityMaterials and methods: The...

hrp0089p1-p263 | Thyroid P1 | ESPE2018

Expression of ZnT8 Transporter in Thyroid Tissues from Patients with Immune and Non-Immune Thyroid Diseases

Bossowski Artur , Reszec Joanna , Polnik Dariusz , Gasowska Marta , Niklinska Wieslawa

Introduction: Zinc homeostasis is regulated by ZnT and Zip zinc transporters. Zinc transporter 8 (ZnT8) is localized in insulin containing secretory granule membrane and transports zinc from the cytosol into the vesicles. ZnT8 was identified on peripheral lymphocytes, in subcutaneous adipose tissue, in a pancreatic β-cells and extra-pancreatic endocrine glands including pituitary, adrenal and thyroid. Autoantibodies to the ZnT8 are detected in the majority of type 1 diabe...

hrp0086p2-p717 | Endocrinology and Multisystemic Diseases P2 | ESPE2016

15-Year Old Girl with APS Type IIIc, with Post-Thymectomy Remission – Case Report

Bossowski Artur , Jamiolkowska Milena , Furmaniak Jadwiga , Smith Bernard Rees

Background: Autoimmune polyglandular syndromes (APS) is a group of heterogeneous conditions characterized by the association of at least two organ-specific disorders, concerning both endocrine and non-endocrine organs. On the basis of the clinical features, they are divided into four main types. Type III is defined as the combination of autoimmune thyroid disease and other autoimmune condition – divided into subtypes A, B and C.Objective and hypothe...

hrp0095p2-84 | Diabetes and Insulin | ESPE2022

Assessment of serum concetrations of decorin, vaspin and kallistatin in children with type 1 diabetes

Polkowska Agnieszka , Bossowski Filip , Żelazowska-Rutkowska Beata , Marcinkiewicz Katarzyna , Nesterowicz Miłosz , Leoniuk Rafał , Bossowski Artur

The increasing knowledge on the functions of gastric peptides and adipokines in the body allows the assumption of their major role linking the process of food intake, nutritional status, and body growth, largely through the regulation of glucose metabolism and insulin resistance. The aim of the study was the assessment of serum levels of selected gastric peptides and adipocytokines in children with type 1 diabetes, with respect to the disease duration. The study included 88 ch...

hrp0095p2-289 | Thyroid | ESPE2022

Retrospective assessment of malignant thyroid nodules in a group of polish children and adolescents involving elastography

Borysewicz-Sańczyk Hanna , Sawicka Beata , Karny Agata , Bossowski Filip , Marcinkiewicz Katarzyna , Rusak Aleksandra , Dzięcioł Janusz , Bossowski Artur

Introduction: Thyroid nodules occur in 1.8% children which is not so often in comparison to adults (19–68%), but in children they appear to be at higher risk of malignancy (22–26% vs.5–10% respectively). It has been shown that the probability of thyroid nodules malignancy correlates with the presence of characteristic ultrasonographic features. Elastography - the noninvasive ultrasound imaging technique based on estimation of the tissue flexi...

hrp0095p1-313 | Growth and Syndromes | ESPE2022

Pathway to assess severe primary IGF-1 deficiency diagnosis in a real-life setting: data from the Global Increlex® Registry

Bang Peter , Polak Michel , Bossowski Artur , De Schepper Jean , Sert Caroline , Perrot Valérie , Woelfle Joachim

Background: Severe primary insulin-like growth factor-1 deficiency (SPIGFD) is a rare condition for which replacement therapy with recombinant human insulin-like growth factor-1 (rhIGF 1; mecasermin [Increlex®]) is approved for treatment in Europe and the USA. SPIGFD is defined as a height standard deviation score (HtSDS) ≤-3, and baseline IGF-1 <2.5th percentile (European indication) or ≤-3 SDS (USA indication) for age and gender, desp...

hrp0095p1-187 | Thyroid | ESPE2022

Analysis of miR-15a-5p, miR-126-3p, miR-142-5p and miR-150-5p levels in blood of children and adolescents with thyroid diseases

Sawicka Beata , Sulewska Anetta , Borysewicz-Sańczyk Hanna , Żelazowska-Rutkowska Beata , Bossowski Artur

Background: The pathogenesis of autoimmune thyroid diseases depends on many factors including genetic predisposition and environmental factors. Graves' disease and Hashimoto's thyroiditis are associated with an impaired immunological tolerance to antigen molecules in the thyroid gland. Abnormal immunotolerance results from impaired suppression involving regulatory T cells in peripheral immunocompetent tissues (Tregs). It is known that patients with a...

hrp0095p2-140 | Fetal, Neonatal Endocrinology and Metabolism | ESPE2022

POU1F1 gene mutation as a cause of central hypothyroidism and growth hormone deficiency: a case report

Sawicka Beata , Borysewicz-Sańczyk Hanna , Sztatyłowicz Aleksandra , Michalak Justyna , Stożek Karolina , Bossowski Artur

Background: Thyroid hormones are necessary for normal child development. Hypothyroidism, associated with insufficient amounts of free triiodothyronine and thyroxine, may not only cause poor growth rate, but also results in impaired central nervous system development. In Poland, newborn screening for congenital primary hypothyroidism, the incidence of which is reported to be 1:2500- 1:4000 births, has been performed for many years. Secondary hypothyroidism, cau...