Searchable abstracts of presentations at key conferences in endocrinology

ea0090oc11.6 | Oral Communications 11: Late Breaking | ECE2023

Assessment of clinical and histopathological predictors for remission after transsphenoidal surgery for acromegaly

Postma Mark , Westerlaan Henriette , Willems Annet , van den Beukel Anke , Kuijlen Jos , Vergeer Rob , van der Klauw Melanie , Dunnen Wilfred den , van Beek Andre

Background: Transsphenoidal surgery (TSS) is the primary treatment of choice in acromegaly. Previous research succeeded to some extent in predicting remission after TSS. However, it was based mainly on clinical and radiological data, lacking histopathological evaluation.Objective: To produce a clinicopathological prediction model for remission after TSS for acromegaly, enabling clinicians to better inform patients on expected treatment outcome.<p cla...

ea0067o33 | Oral Presentations | EYES2019

Bone health and final height in craniopharyngioma patients

van Santen Selveta S , Olsson Daniel S , Hammarstrand Casper , Wijnen Mark , Johannsson Gudmundur , van der Lely Aart J , Heuvel-Eibrink MM van den , JCMM Neggers Sebastian

Objective: Craniopharyngioma (CP) is a benign tumor of the sellar/hypothalamic region. It is associated with endocrinopathies, which may potentially impair bone health. Our objective was to determine bone health status in CP patients.Methods: In this retrospective study, Dutch/Swedish CP patients were included if data was available on fractures, bone mineral density (BMD) (T/Z-score), or final height (age >18 years). Data is presented as mean±<s...

ea0063gp117 | Calcium and Bone 2 | ECE2019

Bone health and final height in craniopharyngioma patients.

Santen Selveta S. van , Hammarstrand Casper , Olsson Daniel S. , Wijnen Mark , Johannsson Gudmundur , Lelij Aart J van der , Heuvel-Eibrink Marry M. van den , Neggers Sebastian JCMM

Introduction: Craniopharyngioma (CP) is a benign tumor of the sellar/hypothalamic region. It is associated with excess mortality, obesity and endocrinopathies. These endocrinopathies may influence bone health, and increase the risk of fractures.Methods: In this retrospective study, Dutch/Swedish patients with CP were included if data was available on final height (at age >18 years) or DXA-scan results. Information from the first and last DXA-scans we...

ea0063gp173 | Obesity (1) | ECE2019

Excellent tumor response to pasireotide therapy in an aggressive and dopamine-resistant prolactinoma

Coopmans Eva , van Meyel Sebastiaan , Pieterman Kay , van Ipenburg Jolique , Hofland Leo , Donga Esther , Daly Adrian , Beckers Albert , van der Lely Aart-Jan , Neggers Sebastian

Background: Prolactinomas are the most frequent secreting pituitary adenomas encountered in the clinical setting. Cabergoline is considered the mainstay medical treatment and transsphenoidal surgery (TSS) is recommended for patients that are medically resistant to dopamine agonist therapy. Resistance to dopamine agonists is commonly defined as failure to normalize prolactin and less than 50% decrease in tumor diameter at a maximal labeled dose of 2.0 mg/week. Pasireotide LAR (...

ea0063p960 | Diabetes, Obesity and Metabolism 3 | ECE2019

Prevalence of postprandial hyperinsulinemic hypoglycaemia in a random population after primary Roux-en-Y gastric bypass during a mixed meal tolerance test

Emous Marloes , Wijma Ragnhild , van den Broek Merel , de Heide Loek , van Dijk Gertjan , Wolthuis Albert , Totte Erik , Laskewitz Anke , Wolffenbuttel Bruce , van Beek Andre

Context: Roux-en-Y Gastric bypass (RYGB) is an effective way to induce sustainable weight loss. This operation can be complicated by late dumping, also known as postgastric bypass hyperinsulinemic hypoglycemia. Much is still unknown on its prevalence and its pathophysiology.Objective: To study the prevalence and the main driving mechanisms behind the occurrence of hypoglycemia after a mixed meal tolerance test (MMTT) in patients with primary RYGB. Design...

ea0041ep779 | Obesity | ECE2016

Skin autofluorescence is associated with the metabolic syndrome and its individual components

van Waateringe Robert , Slagter Sandra , van Vliet-Ostaptchouck Jana , Graaff Reindert , van der Klauw Melanie , Paterson Andrew , Lutgers Helen , Wolffenbuttel Bruce

Background: Skin autofluorescence (SAF) has been demonstrated to be associated with long-term cardiovascular complications in subjects with either diabetes or renal failure. Since the metabolic syndrome (MetS) is a risk factor for cardiovascular disease, the aim of the study was to assess the association between SAF and MetS as well as its individuals components.Materials and methods: For this cross-sectional analysis, we included subjects 18–80 yea...

ea0037gp.13.02 | Diabetes and obesity – Translational cardiovascular and obesity | ECE2015

Screening for genetic and structural variation in the NPY2R gene in obese children and adolescents

Aerts Evi , Zegers Doreen , Sorber Laure , Beckers Sigri , Verrijken An , Massa Guy , Hoorenbeeck Kim Van , Verhulst Stijn L , Gaal Luc F Van , Hul Wim Van

Objective: NPY2R is a G-protein-coupled receptor which is highly expressed in orexigenic NPY/AGRP neurons within the arcuate nucleus, a major integrator of appetite control in the hypothalamus. Genetic evidence coming from animal and association studies, has identified NPY2R as a candidate gene for obesity. Therefore we have designed an extensive mutation and CNV-analysis investigating the prevalence of genetic and structural variation in NPY2R.Design an...

ea0070aep201 | Bone and Calcium | ECE2020

Body composition and bone mineral density in craniopharyngioma patients: A longitudinal study over 10 years

Van Santen Selvetta S , Olsson Daniel S , Hammarstrand Casper , Wijnen Mark , Fiocco Marta , van den Heuvel-Eibrink Marry M , Johannsson Gudmundur , Van der Lely Aart Jan , Neggers Sebastian

Introduction: Patients with craniopharyngioma (CP) suffer from pituitary deficiencies and hypothalamic damage, resulting in obesity and impaired bone health. Little is known about long-term changes in body composition and bone mineral density (BMD).Methods: Dutch and Swedish patients were included in this retrospective longitudinal study if they had DXA-scan (body composition/BMD) data available at age of 18 years or older. Linear regression modelswerees...

ea0032p582 | Female reproduction | ECE2013

Ovarian function is associated with obesity in very long-term female survivors of childhood cancer

van Dorp Wendy , Blijdorp Karin , Laven Joop , Pieters Rob , Visser Jenny , van der Lely Aart-Jan , Neggers Sebastian , van den Heuvel-Eibrink Marry

Introduction: Obesity and gonadal dysfunction are major side effects of treatment in adult childhood cancer survivors. In the general population, obesity has a negative influence on female fertility. The aim of the study was to evaluate whether obesity and serum insulin are associated with decreased ovarian reserve markers in childhood cancer survivors.Methods: We performed a retrospective single-center cohort study in 191 adult female survivors of child...

ea0026oc5.1 | Hormone metabolism and action | ECE2011

ESE Young Investigator Award

Hoekstra M , Vergeer M , Hildebrand R B , van der Sluis R J , Kastelein J J , Van Eck M , Kuivenhoven J A , Van Berkel T J C

Adrenal-derived glucocorticoids originate from their precursor cholesterol. Scavenger receptor BI (SR-BI) is a major high-density lipoprotein (HDL) receptor that mediates the selective uptake of cholesteryl esters (CE) from this lipoprotein in the circulation. In our present studies in SR-BI knockout (KO) mice and human carriers of a functional mutation in the extracellular domain of SR-BI (P297S), we determined whether SR-BI-mediated uptake of HDL-CE is required for adrenal g...