hrp0086p1-p452 | Fat Metabolism and Obesity P1 | ESPE2016

High Predictability of Impaired Glucose Tolerance by Combining Diagnostic Parameters in Obese Children

Jan de Groot Cornelis , van der Grond Jeroen , Delgado Yosine , Rings Edmond , Hannema Sabine , van den Akker Erica

Background: Current guidelines suggest to test obese subjects with impaired fasting glucose (IFG) by oral glucose tolerance test (OGTT) for the presence of type 2 diabetes. This strategy, however, misses most cases of impaired glucose tolerance (IGT).Objective and hypotheses: To investigate whether combining risk factors improves predictability of IGT in OGTT.Method: In this observational study of 145 overweight children, aged 2.5&...

hrp0086p1-p470 | Fat Metabolism and Obesity P1 | ESPE2016

Brain Structure, Executive Function and Appetitive Traits in Adolescent Obesity

Jan de Groot Cornelis , van den Akker Erica , Rings Edmond , Delemarre-van de Waal Henriette , van der Grond Jeroen

Background: Children with obesity show differences in brain structure, executive function and appetitive traits when compared to lean peers. Results of imaging studies, however, have been contradictory.Objective and hypotheses: To investigate whether childhood obesity is associated with differences in brain structure and whether differences associate with executive function and appetitive traits.Method: A cross-sectional case-contr...

hrp0086p1-p462 | Fat Metabolism and Obesity P1 | ESPE2016

Determinants of Advanced Bone Age in Childhood Obesity

Jan de Groot Cornelis , van den Berg Adriaan , Ballieux Bart , Kroon Herman , Rings Edmond , Maarten Wit Jan , van den Akker Erica

Background: Childhood obesity is associated with advanced bone age (BA), leading to an altered growth pattern. Previous results of studies suggest that androgens, estrogens, sex hormone binding globulin (SHBG) and insulin are responsible for this phenomenon, but results are contradictory and might be biased by confounders.Objective and hypotheses: To investigate the independent effects of estrogens, androgens, SHBG and insulin parameters on BA advancemen...

hrp0094p2-191 | Fat, metabolism and obesity | ESPE2021

Resting energy expenditure and body composition in children and adolescents with severe obesity due to (suspected) medical causes: comparison between different subtypes of obesity

Abawi Ozair , Koster Emma , Welling Mila , Boeters Sanne , van Rossum Elisabeth , van der Voorn Bibian , de Groot Cornelis , van den Akker Erica ,

Background: Paediatric obesity is a multifactorial disease characterized by an imbalance between energy intake and expenditure. In rare cases, obesity is caused by underlying medical disorders arising from disruptions in the leptin-melanocortin pathway, which regulates satiety and energy expenditure.Aim: To investigate resting energy expenditure (REE) in relation to body composition in children and adolescents with sever...

hrp0098p1-42 | Fat, Metabolism and Obesity 1 | ESPE2024

Unravelling the relationship between Head Circumference and Melanocortin4-Receptor deficiency from infancy to adulthood: a case-control study

E.P.L. van der Walle Eline , J. de Groot Cornelis , S. Welling Mila , Kleinendorst Lotte , M. van Haelst Mieke , L.T. van den Akker Erica

Background: Melanocortin4-receptor (MC4R) deficiency is the most common cause of monogenetic obesity. Other forms of genetic obesity, like 16p11.2 deletion syndrome, are associated with increased head circumference (HC). Little is known about HC in patients with MC4R deficiency.Methods: This study included patients with homozygous or heterozygous, pathogenic or likely pathogenic ACMG class 4 or 5 MC4R variants. Pediatric...

hrp0097lb5 | Late Breaking | ESPE2023

Clinical phenotyping of patients with genetic obesity

S. Welling Mila , Mohseni Mostafa , E.H. Meeusen Renate , R. Boon Mariëtte , J. de Groot Cornelis , M. van Haelst Mieke , A. Visser Jenny , L.T. van den Akker Erica , F.C. van Rossum Elisabeth

Introduction: In rare cases of obesity, genetic defects lead to hyperphagia and severe early-onset obesity. Genetic testing in patients with a suspected genetic obesity phenotype is important, as it can lead to patient-tailored treatment advice. For children, the Endocrine Society (ES) recommends genetic testing in children with early-onset of obesity (<5 years) and hyperphagia. It is unclear whether these recommendations can also be used in adult obesity c...