hrp0084p1-108 | Perinatal | ESPE2015

Liver ER Stress and Intrauterine Growth Retardation in Rats

Deodati Annalisa , Argemi Josepmaria , Puglianiello Antonella , Germani Daniela , Ferrero Roberto , Aragon Tomas , Cianfarani Stefano

Background: Endoplasmic reticulum (ER) is the site where proteins are folded. Perturbation of ER homeostasis activates a set of ER-to-nucleus signaling reactions known as the unfolded protein response (UPR). Metabolic stress causes UPR activation which contributes to the development of insulin resistance and metabolic syndrome. As UPR can be activated by nutrient and oxygen starvation, we postulated that intrauterine growth restriction may trigger UPR signaling and thereby con...

hrp0098p1-304 | Late Breaking 2 | ESPE2024

ER stress relief drives ß-cell proliferation

Bourgeois Stephanie , Staels Willem , Van Mulders Annelore , Willems Lien , Coenen Sophie , Degroote Laure , Pierreux Julie , Leuckx Gunter , Heremans Yves , De Leu Nico , Heimberg Harry , Cnop Miriam , Yi Xiaoyan , Movahedi Kiavash , Kancheva Daliya , Scheyltjens Isabelle , de Koning Eelco , Carlotti Françoise

Introduction: Regenerating endogenous pancreatic β-cells is a potentially curative yet currently elusive strategy for diabetes therapy. Mimicking the microenvironment of the developing pancreas and leveraging vascular signals, critical to pancreatic endocrinogenesis, may promote β-cell regeneration. We aimed to investigate whether recovery from experimental hypovascularization of the endocrine pancreas could trigger mouse ß-cell proliferation.<...

hrp0086s5.1 | Mitochondrial dysfunction and endoplasmic reticulum stress in endocrine diseases | ESPE2016

Wolfram Syndrome, a Prototype of ER Stress-Induced Beta Cell Death

Urano Fumihiko

Background: Endoplasmic reticulum (ER) participates in so many cellular tasks that trouble can ensue when it stops working properly, including β cell death in type 1 and type 2 diabetes mellitus. Despite the underlying importance of ER dysfunction in β cell death during the progression of diabetes, there is no effective treatment targeting the ER due to the complex etiologies of type 1 and type 2 diabetes.Objective and hypotheses: Our strategy ...

hrp0082fc8.1 | Fat Metabolism | ESPE2014

Activation of the ER Stress Response in Cultured Human Umbilical Vein Endothelial Cells by Plasma Obtained from Prepubertal Obese Children

de Giorgis Tommaso , Di Silvestre Sara , Mohn Angelika , Di Pietro Natalia , Marcovecchio Maria Loredana , Cordone Vincenzo , Mandatori Domitilla , Chiavaroli Valentina , Bologna Giuseppina , Pandolfi Assunta , Chiarelli Francesco

Background: Childhood obesity is commonly associated with signs of endothelial dysfunction, characterized by impairment of insulin signaling and vascular NO availability. Recently both these features have been associated with endoplasmic reticulum (ER) stress, however the role of ER stress in the mechanism/s leading to vascular dysfunction in childhood obesity remains still to be established.Objective and Hypotheses: To evaluate ER stress and insulin-sti...

hrp0086s5.3 | Mitochondrial dysfunction and endoplasmic reticulum stress in endocrine diseases | ESPE2016

Activation of HSP 72: A Therapeutic Target for Diseases Related to both ER Stress and Mitochondrial Dysfunction

Febbraio Mark

Over the past decade, work from our research group has demonstrated that over-expression or activation of the chaperone protein heat shock protein 72 (HSP72; the inducible form of the 70kDa family of heat shock proteins) in skeletal muscle reduces obesity-induced insulin resistance (for review see). These findings led to the development of the small molecule activator of HSP72, namely BGP-15 which, in pre-clinical studies, has proven to be effective in the treatment of several...

hrp0086rfc15.1 | Late Breaking | ESPE2016

A Novel Homozygous Mutation in the Domain AF-2 of Alpha Estrogen Receptor Gene (ESR1), Generating a Bio-Inactive ERα Mutant, Resulting in Estrogen Resistance with Complex Metabolic Phenotype

Feigerlova Eva , Laurell Henrik , Mittre Herve , Kottler Marie-Laure , Deshayes Marc , Balaguyer Patrick , Arnal Jean-Francois , Marechaud Richard , Hadjadj Samy , Gourdy Pierre

Context: The mouse ERα−/− knock-out model and rare human ESR1 gene mutations identified to date have demonstrated crucial role of ERα in control of energy homeostasis and glucose metabolism. Subjects with ERα deficiency show features of estrogen resistance (ESTRR) with continuous linear growth in adulthood.Patient: We describe a 20-year-old female, with unknown family history, who presented...

hrp0092lb-28 | Late Breaking Posters | ESPE2019

The Volumetric Changes in the Olfactory Bulb Depend on Body Mass Index

Karaoglan Murat , Colakoglu Er Hale

Background/Objective: Energy balance is preserved through the exchange between body weight and adipose tissue across the multi-faceted complex network that is composed of the sensorial, metabolic, and neuroendocrine circuits. Olfactory control of the process is maintained through the central structures that include the hypothalamic-pituitary axis, together with the interplay between the olfactory bulbus (OB) and adipose tissue. Although the interaction of the ...

hrp0098rfc4.6 | Adrenals and HPA Axis 1 | ESPE2024

Machine Learning-Based Decision Tree Model for the Diagnosis of Congenital Disorders of Adrenal Steroidogenesis Using LC-MS/MS-based Plasma Steroid Hormone Profiles

Noyan Erçetin Atam , Gurpinar Tosun Busra , Kirkgoz Tarik , Yavas Abali Zehra , Eltan Mehmet , Akbarzade Azad , Yaman Ali , Turan Serap , Bereket Abdullah , Yalcin Arga Kazim , Guran Tulay

Background: Congenital disorders of adrenal steroidogenesis (CDAS) result in various adverse clinical outcomes including adrenal insufficiency, hypertension, androgen excess, or differences in sex development, depending on the specific enzyme deficiency involved. Rapid and precise diagnosis of these conditions facilitates improved short-term and long-term clinical management. The requirement for clinical expertise may lead to delays in the diagnostic process.<...

hrp0097p1-547 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Evaluation of Electrocardiographic Changes in Girls Receiving Gonadotropin-Releasing Hormone Analogs for Central Precocious Puberty

Er Eren , Ata Aysun , Orgun Ali

Background and Aim: Gonadotropin-releasing hormone analogs (GnRHa’s) are the standard medical treatment for precocious puberty. Studies on their side effects in adults have shown that these drugs can cause changes in electrocardiography (ECG) along with some cardiovascular effects; however, the number of studies on children is limited. This study aims to investigate the effect of these drugs on ECG parameters in children diagnosed with central precocious puber...

hrp0095p1-395 | Thyroid | ESPE2022

Liquid formulations of Levothyroxine with and without ethanol in the treatment of congenital hypothyroidism: similar TSH and fT4 values in the first six months of follow up

Tarantola Giulia , Vincenzi Gaia , Girolamo Laura , Abbate Marco , Santagiuliana Cristina , Priolo Alessio , Mora Stefano , Cristina Vigone Maria

Background: There are two liquid formulations of Levothyroxine currently in use in Italy: one containing ethanol (Tirosint®) and the other ethanol-free (Tifactor®). The aim of our study is to compare the two liquid formulations of Levothyroxine in the first six months of treatment in newborns affected by Congenital Hypothyroidism (CH).Methods: We retrospectively enrolled 156 patients treated with the ethanol-cont...