hrp0089p2-p170 | Fat, Metabolism and Obesity P2 | ESPE2018

Development of Resistance to Sorafenib, a Multikinase Inhibitor, in Hepatocellular Carcinoma is Mediated by SIRT

Garten Antje , Grohmann Theresa , Barnikol-Oettler Anja , Kluckova Katharina , Lavery Gareth , Kiess Wieland , Penke Melanie

Background/aim: Sorafenib® is a multi-kinase inhibitor and one of the few systemic treatment options for patients with advanced hepatocellular carcinomas (HCCs). Resistance to Sorafenib® develops frequently and could be mediated by the NAD dependent deacetylase sirtuin (SIRT) 1, a master regulator of cellular energy metabolism and stress responses. We aimed to find out if Sorafenib® treatment depends on changes in cellular NAD le...

hrp0089p2-p175 | Fat, Metabolism and Obesity P2 | ESPE2018

Social Networks, Social Support and Weight-Related Outcomes among Adolescents

Ybarra Marina , Yu Jennifer , Kakinami Lisa , Mathieu Marie-Eve , Henderson Melanie , Barnett Tracie

Introduction: People’s weight-related behaviors may be influenced by their personal social network (SN), notably via family and friends’ behavioral modelling and motivational social support (SS).Objective: We examined the cross-sectional relation between social network-based social support (SS) and weight-related outcomes among adolescents ina pilot study within the QUALITY cohort, a longitudinal study investigating the natural...

hrp0089p2-p356 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P2 | ESPE2018

Diagnostic Experiences and Concerns in Adolescents with Polycystic Ovary Syndrome

Pena Alexia , Gibson-Helm Melanie , Byrne Stephanie , Cash Sarah , Hull Louise , Teede Helena

Many women with polycystic ovary syndrome (PCOS) have a delayed diagnosis after seeing multiple health care providers for their symptoms impacting on their physical and emotional well-being (1). In adolescent girls, PCOS diagnosis is even more controversial and challenging than in adult women yet there have been no studies in adolescents evaluating diagnostic experience, their knowledge and concerns. We aimed to evaluate diagnostic experience and concerns regarding PCOS in an ...

hrp0086p1-p213 | Diabetes P1 | ESPE2016

The Impact of Diet on Insulin Dynamics over a 2-Year Period in Children with a Family History of Obesity

Leclerc Lucas , Gray-Donald Katherine , Benedetti Andrea , Radji Sanyath , Henderson Melanie

Background: Despite extensive evidence in adults that lifestyle modification, including a healthy diet, may prevent the onset of type 2 diabetes, studies examining the impact of chronic dietary exposures on insulin dynamics in at-risk children are lacking.Objective and hypotheses: To assess how dietary intake predicts insulin sensitivity and secretion over a 2-year period in children with a family history of obesity.Method: Data st...

hrp0086p2-p708 | Endocrinology and Multisystemic Diseases P2 | ESPE2016

Inhibition of NAMPT Increases the Sensitivity of Leukemia Cells for Etoposide

Gorski Theresa , Petzold-Quinque Stefanie , Richter Sandy , Schuster Susanne , Penke Melanie , Kiess Wieland , Garten Antje

Background: Cancer cells have a high NAD turnover rate due to their increased cell proliferation and DNA repair. Nicotinamide phosphoribosyltransferase (NAMPT) is the key enzyme of the NAD salvage pathway, a regulator of the intracellular NAD pool and of the activity of Sirtuins (SIRTs), a class of NAD-dependent deacetylases.Objective and hypotheses: Cancer cells are highly dependent on NAD and are expected to be more susceptible to an inhibition of NAD ...

hrp0082p2-d3-485 | Hypoglycaemia | ESPE2014

Nocturnal Hypoglycaemia in Diabetic Children: Continuous Glucose Monitoring Reveals More of the Iceberg

Bachmann Sara , Martin Eva , Ritschard Vreni , Hess Melanie , Jockers Katharina , Vuissoz Jean-Marc , Zumsteg Urs

Background: Hypoglycaemia is the most common and threatening complication in diabetic children. Nocturnal hypoglycaemia is mostly unrecognised and asymptomatic, but recurrent mild hypoglycaemia at night can lead to hypoglycaemia unawareness and reduced performance at daytime.Aims: To evaluate frequency and duration of nocturnal hypoglycaemia in type 1 diabetic children and to identify risk factors for such events.Patients/methods: ...

hrp0082lbp-d3-1007 | (1) | ESPE2014

Hepatic NAD Metabolism is Dysregulated by an Excessive Supply of Lipids

Kiess Wieland , Penke Melanie , Treebak Jonas T , Schuster Susanne , Gorski Theresa , Garten Antje

Background: Animal and human studies have shown that nicotinamide phosphoribosyltransferase (NAMPT), the key enzyme of mammalian NAD biosynthesis from nicotinamide, is modified in non-alcoholic fatty liver disease. Here, we investigated the effect of a high fat diet on hepatic NAD metabolism in mice.Objective and hypotheses: A dysregulation of NAD metabolism is a pathogenic factor for the development of steatohepatitis (NASH).Metho...

hrp0084p3-840 | Fat | ESPE2015

Are Age and Initial BMI-SDS in Obese Children and Adolescents Associated with the BMI-SDS Courses During and after the Attendance of an Inpatient Weight-Loss Program (LOGIC-Trial)?

Brandt Stephanie , Wabitsch Martin , Heitkamp Melanie , Geilhof Barbara , Langhof Helmut , Halle Martin , Siegrist Monika

Background: It has been discussed in literature, that being severely obese and adolescent are predictive for failure in a behavior based weight-loss program.Objective: To investigate the association between age and initial BMI-SDS with BMI-SDS courses during and after the attendance of an inpatient weight-loss program.Design: The LOGIC-trial involves overweight and obese children and adolescents (6–19 years), who participate i...

hrp0084p3-841 | Fat | ESPE2015

Turn off and Turn in: The Influence of Television Viewing and Sleep on Lipid Profiles in Children

Manousaki Despoina , Radji Sanyath , Barnett Tracie , Mathieu Marie-Eve , Gray-Donald Katherine , Henderson Melanie

Background: Physical activity is beneficial to lipid profiles, however the association between sedentary behaviours and paediatric dyslipidaemia remains controversial. Understanding these associations is critical given that youth are increasingly engaging in sedentary pursuits, and are sleeping, on average, 1 h less than children were 20 years ago.Objective and hypotheses: To investigate whether various forms of sedentary behavior/sleep predict lipid pro...

hrp0094p2-195 | Fat, metabolism and obesity | ESPE2021

Assessment of Hyperphagia in Patients with Monogenic Obesity

Zorn Stefanie , von Schnurbein Julia , Schirmer Melanie , Kohlsdorf Katja , Brandt Stephanie , Wabitsch Martin ,

Introduction: Besides an excessive, early-childhood weight gain, hyperphagia is the key symptom in patients with monogenic obesity. However, the assessment of hyperphagia is still challenging. Here, we applied the hyperphagia questionnaire developed for patients with Prader-Willi-Syndrome (PWS) to assess the severity of hyperphagia in patients with monogenic obesity.Methods: Pediatric patients with biallelic pathogenic l...