ESPE Abstracts

Background and Aim: Pediatric patients with germline mutations in the tumor suppressor gene PTEN (PTEN hamartoma tumor syndrome, PHTS) frequently develop lipomas. PTEN antagonizes phosphoinositide 3-kinase (PI3K) signaling, which can induce adipogenesis upon activation through insulin. The PI3K downstream target AKT can deactivate FOXO1 via phosphorylation, initiating the expression of the lipogenesis activating transcription factor SREBP1. To study t...

Background/ Aims: Hyperuricemia (HU) is a frequent finding in childhood obesity, ranging between 12 and 40%, and associates to a variable extent with different components of the metabolic syndrome (MS). In this study, the effect of gender, (a Belgian native vs a non-Belgian native) descent and degree of general and central adiposity on serum uric acid (SUA) and the prevalence of HU was investigated in a multi-ethnic population of overweight/obese children and ...

Introduction: Well-known long-term complications of alloHSCT in childhood include endocrine system damage and secondary malignancies. In addition, adults surviving childhood alloHSCT are at risk of cardiovascular (CV) and metabolic disturbances. Long-term data of physical fitness in correlation with metabolic status are scarce in this particular group.Objective/Patients and Methods: Cross-sectional investigation of exerc...

Introduction: Little is known about the effects of puberty suppression (PS) and hormone therapy (HT) on growth and adult height in transgender adolescents. These are topics of interest since height differs between sexes and some transgirls wish to limit their growth. In this longitudinal cohort study, we investigated the influence of PS and HT on growth and the efficacy of growth reduction therapy in transgender girls.Methods:</s...

Background/Aim: Serum NAMPT (nicotinamide phosphoribosyltransferase) levels are altered in adult patients with non-alcoholic fatty liver disease (NAFLD). However, less is known about NAMPT serum levels children and adolescents and their association with parameters of liver function.Methods: Blood and anthropometric data of 416 children and adolescents who participated in the LIFE Child Study Leipzig were collected. Serum NAMPT (Adipogen) and cytokeratin-...

Background/Objective: Smoking during pregnancy is known to influence prenatal/postnatal growth of the offspring. We investigated the impact of smoking in the Swedish reference population for new reference for height, weight and BMI, the GrowUp1990Gothenburg cohort.Material/Methods: The study was based on 1907 healthy children (918girls/989boys) born at term in Sweden with Nordic parents and longitudinal growth measurements. 155girls/180b...

Background: Waist circumference (WC) reflects the fat distribution and the degree of central adiposity in children, which is specifically associated with cardiovascular risk factors and useful as a component of metabolic syndrome definition in children.Objective and hypotheses: To evaluate the distribution of WC measures among preschool children aged 3.5–5.5 years from six European countries.Method: Cross-sectional study of a ...

Background: Childhood obesity is a serious health problem, related to an increased risk of adult morbidity and mortality. Evidence indicates that central adiposity increases this risk to a higher degree compared to the general obesity indices.Objective and hypotheses: To evaluate the distribution of anthropometric obesity indices among preschool children aged 3.5–5.5 years, from six European countries, and to examine their associations with certain ...

Background: Pediatric patients with germline pathogenic variants in the tumor suppressor gene PTEN frequently develop cancer and adipose tissue overgrowth in the form of lipomas. While the canonical function of the phosphatase PTEN is to antagonize the growth promoting PI3K pathway, non-canonical PTEN functions e.g. in the nucleus are less well described. To uncover the mechanisms leading to lipoma formation related to PTEN mutations, we previously performed R...

Background: Obesity is characterized by an increase in fat mass caused by an increase in adipocyte number and adipocyte size and is often associated with adipose tissue (AT) dysfunction contributing to metabolic impairment. It is suspected that adipocyte progenitor cells play an important role during healthy and obesity-related AT expansion. Studies in adults showed that the stroma vascular fraction (SVF) of AT is composed of different progenitor cell subpopul...