hrp0082p2-d3-487 | Endocrine Oncology | ESPE2014

The Cytotoxic Ability of NK Cells in Children with Autoimmune Thyroiditis

Kucharska Anna , Popko Katarzyna , Osinska Iwona , Demkow Urszula

Background: In autoimmune thyroiditis type Hashimoto the key role in thyrocytes destruction plays the spontaneous cytotoxic activity of T cells, and antibodies dependent mechanisms are of a less value. A spontaneous cytotoxicity is associated with the number and degree of activity of NK cells. An important role in this process plays perforin contributed in permabilization of target cells.Objective and hypotheses: The aim of the study was to evaluate the ...

hrp0086p1-p602 | Growth P1 | ESPE2016

Prediction of First Year Response to Growth Hormone Treatment in Neural Network Models

Smyczynska Urszula , Smyczynska Joanna , Hilczer Maciej

Background: Accurate prediction of responsiveness to growth hormone (GH) therapy is an important issue. The 1st year response to treatment is regarded as significant predictor of the attained final height. Neural networks are techniques of machine learning which do not require any assumptions and preprocessing of data, contrary to linear regression models.Objective and hypotheses: The aim of the study was to predict height velocity (HV) during 1st year o...

hrp0092p1-77 | GH and IGFs | ESPE2019

Severe IGF-I Deficiency in Children with Normal Growth Hormone (GH) Secretion and Excluded GH Insensitivity – is it Really Idiopathic Short Stature?

Joanna Smyczynska , Urszula Smyczynska , Andrzej Lewinski , Maciej Hilczer

According to current recommendations, children with height SDS <-3.0, normal growth hormone (GH) peak in stimulation tests (stimGH) and severe IGF-I deficiency (IGFD) may be diagnosed with primary IGFD and treated with recombinant IGF-I. The need for direct confirmation of GH insensitivity is a matter of discussion. On the other hand, children born small for gestational age (SGA) with no catch-up growth are qualified to GH therapy despite normal GH secretion. The fact that...

hrp0089p2-p235 | GH &amp; IGFs P2 | ESPE2018

Hormonal Predictors of Growth Hormone Therapy Effectiveness in Children with Short Stature – Evidence from Neural Prediction Model for Final Height

Hilczer Maciej , Smyczynska Joanna , Urszula Smyczynska , Stawerska Renata , Lewinski Andrzej

Prediction of growth hormone (GH) therapy effectiveness in children with short stature is an important issue for optimizing its course. Recently, our research group has published prediction models derived with neural networks. The main predictors of final height (FH) in our model were: patient’s height SDS at therapy onset, pre-treatment change of height SDS (HSDS V0) and pre-treatment IGF-I and IGFBP-3 secretion but not the results of GH stimulation tests; the...

hrp0089p2-p237 | GH &amp; IGFs P2 | ESPE2018

Predictors of Poor Response to Growth Hormone Therapy in Children with Short Stature – Evidence from Neural Prediction Model for Final Height

Smyczynska Joanna , Smyczynska Urszula , Hilczer Maciej , Stawerska Renata , Lewinski Andrzej

Prediction of poor response to growth hormone (GH) therapy in children with short stature is an important issue for personalized approach to treatment. Recently, our research group has published prediction models derived with neural networks. The main predictors of final height (FH) in our model were: patient’s height SDS at therapy onset (H0SDS) and pre-treatment IGF-I and IGFBP-3 concentrations but not the results of GH stimulation tests; pre-treatment growth...

hrp0086p1-p626 | Growth P1 | ESPE2016

Significance of IGF-I Generation Test in Diagnosing Primary and Non-Primary IGF-I Deficiency – Clinical Considerations

Smyczynska Joanna , Smyczynska Urszula , Stawerska Renata , Lewinski Andrzej , Hilczer Maciej

Background: The diagnosis of severe primary IGF-I deficiency (IGFD) in children with normal growth hormone (GH) peak in stimulation tests (stimGH) should be confirmed by IGF-I increase <15.0 ng/ml during generation test (IGF-GT), however the significance of IGF-GT has been questioned by some researchers.Objective and hypotheses: Evaluation of the significance of IGF-GT in children with normal stim GH and IGFD, with respect to efficacy of growth-promo...

hrp0084p3-853 | Fat | ESPE2015

Nonalcoholic Steatohepatitis Leading to Cirrhosis of the Liver as a Complication of Hypothalamic Disorders in a Course of Craniopharyngioma – Case Report

Watrobinska Urszula , Bendysz-Golatowska Anna , Moszczynska Elzbieta , Szalecki Mieczyslaw

Background: Craniopharyngioma is low – grade malignant tumour with high survival rate. Its incidence is 0.5–2.0 cases per million persons per year. 30–50% of all cases occur in the childhood. The tumour location leads to numerous complications like deficits of pituitary function, impairment of vision, neuropsychological deficits and obesity. Excess body fat is observed in 40–50% of craniopharyngioma patients.Case presentation: We pres...

hrp0084p3-952 | GH &amp; IGF | ESPE2015

Linear Regression Model of Final Height Prediction Based on Pre-Treatment Data in Children with GH Deficiency Treated with GH

Hilczer Maciej , Smyczynska Joanna , Smyczynska Urszula , Stawerska Renata , Lewinski Andrzej

Background: Prediction of GH therapy effectiveness in children with short stature is an important issue in paediatric endocrinology.Objective and hypotheses: The aim of the study was to create a linear regression model of GH therapy effectiveness, based on the data available before treatment.Method: Retrospective analysis comprised the data of 150 short children (101 boys), diagnosed with isolated GH deficiency, who were treated wi...

hrp0084p2-421 | GH &amp; IGF | ESPE2015

Application of Neural Networks for Final Height Prediction Based on Pre-Treatment Data in Children with GH Deficiency Treated with GH

Smyczynska Joanna , Smyczynska Urszula , Stawerska Renata , Lewinski Andrzej , Tadeusiewicz Ryszard , Hilczer Maciej

Background: Prediction of the effectiveness of GH therapy in children with short stature is an important issue. Artificial neural networks (ANN) seem to be promising tool for this purpose, not requiring any assumption on functions linking independent and dependent variables.Objective and hypotheses: The aim of the study was to compare ANN models of GH therapy effectiveness, based on the data available at therapy onset with multiple linear regression (MLR...

hrp0084p2-566 | Thyroid | ESPE2015

Analysis of B Regulatory Cells with Phenotype CD19+CD24hiCD27+IL-10+ and CD19+IL-10+ in the Peripheral Blood of Children with Graves’ Disease and Hashimoto’s Thyroiditis

Bossowski Artur , Grubczak Kamil , Singh Paulina , Radzikowska Urszula , Dabrowska Milena , Sawicka Beata , Bossowska Anna , Moniuszko Marcin

Background: Autoimmune thyroid disease (AITD) is the most common organ-specific autoimmune disorder. Genetic background, environmental and endogenous factors are play important roles in determining the activation of immune cells or the efficacy of the immunoregulatory pathways. Recently emphasizes the immunosuppressive role of B regulatory cells (phenotype CD19+CD24hiCD27+IL-10+, CD19+IL-10+) in regulation of immune respon...