Searchable abstracts of presentations at key conferences in endocrinology

ea0056p160 | Steroid metabolism + action | ECE2018

Urinary steroid profile in patients with primary adrenal insufficiency under conventional glucocorticoid replacement: a case control study

Espiard Stephanie , McQueen Johanna , Ragnarsson Oskar , Bergthorsdottir Ragnhildur , Burman Pia , Dahlqvist Per , Ekman Bertil , Eden Engstrom Britt , Nilsson Anna G. , Skrtic Stanko , Wahlberg Jeanette , Sherlock Mark , Stewart Paul M. , Johannsson Gudmundur

Introduction: Primary adrenal insufficiency (PAI) leads to a drastically reduced production of steroids from the adrenal cortex, but a few patients may keep some residual adrenal steroid secretion that may simplify replacement therapy and prevent adrenal crisis. Irrespectively, the conventional glucocorticoid (GC) replacement therapy, using thrice-daily oral hydrocortisone, does not restore the patients’ physiological cortisol profile.Objective: The...

ea0093oc4 | Oral communication 1: Adrenal Diseases | EYES2023

Constitutional duplication of PRKACA gene is a cause of isolated primary pigmented nodular adrenocortical disease (PPNAD): Results of its systematic search in bilateral nodular adrenal disease

Vaduva Patricia , Violon Florian , Raverot Gerald , Espiard Stephanie , Attia Amina , Bouys Lucas , Perlemoine Karine , Chasavang Albin , Hieronimus Sylvie , Vantyghem Marie Christine , Polak Michel , Bruno Ragazzon , Jouinot Anne , Pasmant Eric , Bertherat Jerome

Background: Constitutional duplications of the PRKACA gene locus have been described as responsible for adrenal Cushing’s disease.The objective here was to evaluate the results of its systematic screening in bilateral adrenal nodular disease and to specify the associated phenotype.Methods: Between 2020 and 2023, 440 consecutive index cases with macronodular or micronodular adrenal hyperplasia or Carney Complex (CNC) w...

ea0095p113 | Diabetes 4 | BSPED2023

Regional audit on presentation in diabetic ketoacidosis(DKA) at the manifestation of type1 diabetes in children and young people within Yorkshire and Humber region (YH)

Soni Astha , Sahmoud Shaimaa , Lennon Geraldine , Bhimsaria Sunil , Joseph Lovlin , Natarajan Anuja , Gorman Shaun , How-Yaw Stephanie , Alaber Nasar , Matthew Verghese , Campbell Fiona , Hemming Victoria , Bashir Imran , Baker Elizabeth , Danda Nandita , Madhusudhana Madhavi , Watts Wendy , Savage Emma , Gupta Sanjay

The incidence of children presenting with DKA at diagnosis has been on the rise worldwide1. 25.8% of newly diagnosed children had DKA at diagnosis according to the NPDA report (2020/21). 34% of newly diagnosed children in the Yorkshire and Humber(Y&H) region presented in DKA2. Delayed presentation due to lack of awareness is a likely cause for that.Aim: To review the presentations of DKA at diagnosis in the YH r...

ea0081p148 | Pituitary and Neuroendocrinology | ECE2022

AZP-3813, a bicyclic 16-amino acid peptide antagonist of the human growth hormone receptor as a potential new treatment for acromegaly

Milano Stephane , Kurasaki Haruaki , Tomiyama Tatsuya , Reid Patrick , Jan Van der Lely Aart , Culler Michael D.

Medical treatment of acromegaly is based on either suppressing pituitary GH secretion or inhibiting GH action by preventing interaction with its receptor in order to suppress the elevated levels of IGF1. AZP-3813 is a 16-amino acid, bicyclic peptide antagonist of the GH receptor (GHR) derived from peptide sequences discovered using a unique, cell-free in vitro transcription-translation system screened against the human GHR, and that was optimized by rational design to increase...

ea0063oc6.1 | Obesity | ECE2019

Impaired glucose homeostasis in leptin-deficient ob/ob mice is corrected by AZP-3404, a 9-amino acid peptide analog derived from insulin-like growth factor-binding protein 2, a key mediator of leptin action

Culler Michael D , Delale Thomas , Milano Stephane , van der Lely Aart Jan , Abribat Thierry , Clemmons David

The key metabolic hormone, leptin, acts in part through the liver to regulate glucose homeostasis, as well as the maturation of both adipocytes and osteoblasts. These actions have been demonstrated to be mediated by insulin-like growth factor binding protein 2 (IGFBP-2), independent of its ability to bind IGF1. The effects of IGFBP-2 on adipocyte and osteoblast maturation can be localized to a short peptide sequence within the unique heparin binding domain (HBD-1) of IGFBP-2. ...

ea0063gp238 | Anterior and Posterior Pituitary | ECE2019

Immune checkpoint inhibitors therapy-induced hypophysitis is frequently associated with previous thyroid disorders: results from ImmuCare study

Levy Manon , Abeillon Juliette , Borson-Chazot Francoise , Dalle Stephane , Raverot Gerald , Cugnet-Anceau Christine

Context: The immune checkpoint inhibitor (ICI) therapy is frequently used to treat advanced cancers. Autoimmune adverse events have been reported, such as endocrine side effects including frequent thyroid disorders and more rarely hypophysitis. The aim of this study was to describe retrospectively the association thyroiditis-hypophysitis.Patients and method: From 99 patients with endocrine side effects of the ImmuCare cohort, 18 patients with hypophysiti...

ea0063p621 | Diabetes, Obesity and Metabolism 2 | ECE2019

Nonclinical development of livoletide (AZP-531), a peptide analog of unacylated ghrelin for the treatment of hyperphagia in Prader-Willi syndrome

Milano Stephane , Allas Soraya , Cade Didier , Briffaux Jean-Paul , Spencer Andrew

Prader-Willi syndrome (PWS) is a rare complex endocrine disease characterized by hyperphagia and abnormal food-related behaviors that contribute to severe morbidity and early mortality and to a significant burden on patients and caregivers. There are no approved treatments for hyperphagia in PWS. Patients with PWS have increased circulating levels of the orexigenic hormone acylated ghrelin (AG) with a relative deficit of unacylated ghrelin (UAG). These abnormalities in AG and ...

ea0063p623 | Diabetes, Obesity and Metabolism 2 | ECE2019

Myeloproliferative disorder: a rare cause of insulin auto-immune syndrome leading to recurrent severe hypoglycaemia

Emna Jelloul , Fontaine Benedicte , Vanderbecken Stephane , Meliani Pascal , Kembellec Candice , Flaus-Furmaniuk Ania , Debussche Xavier

Insulin autoimmune syndrome (IAS; Hirata syndrome) is a rare cause of hypoglycemia. It seems to be related to specific HLA class II alleles. Rarely, monoclonal antibody acts as an insulin-binding autoantibody: until now 10 cases have been described in association with a myeloproliferative disorder. In June 2015, a 60-year-old patient presented in a local hospital in Mayotte with confusion, sweating and severe hypoglycemia (blood glucose as low as 20 mg/dl). He was suffering of...

ea0016p167 | Comparative endocrinology | ECE2008

In vivo effects of chronic contamination with 137 cesium on testicular and adrenal steroidogenesis

Grignard Elise , Gueguen Yann , Grison Stephane , Lobaccaro Jean-Marc , Gourmelon Patrick , Souidi Maamar

More than twenty years after Chernobyl nuclear power plant explosion, radionuclides are still mainly bound to the organic soil layers. Currently, the radiation exposure is dominated by the internal exposure to gamma-radiation following the decay of 137Cs, due to presence of 137Cs into the food chain. Because of this persistence of contamination with 137Cs, questions regarding public health for people living in contaminated areas were raised. Se...

ea0016p168 | Comparative endocrinology | ECE2008

Contamination with depleted or enriched uranium differently affects steroidogenesis metabolism in rat

Grignard Elise , Gueguen Yann , Grison Stephane , Lobaccaro Jean-Marc , Gourmelon Patrick , Souidi Maamar

Uranium is the heaviest naturally occurring element found in the Earth’s crust. It is an alpha-emitter radioactive element that present both radiotoxicant and chemotoxicant properties. Uranium is present in environment as a result of natural deposits and releases by human applications (mill tailings, nuclear industry and military army). Populations could thus be exposed to uranium either through their drinking water or the food chain.Natural uranium...