Searchable abstracts of presentations at key conferences in endocrinology

ea0086p160 | Adrenal and Cardiovascular | SFEBES2022

Mapping the chromatin-associated-lncRNAs and their enhancer regions between lymphatic and endothelial cells

Mitic Tijana , Chaloner Emma , Zhang Chenyun , Dudnakova Tatiana , Dunn-Davies Hywel

Blood vessels supply nutrients, oxygen and other key molecules necessary for the function of all organs in the body. The endothelial cell (EC) repair and response to injury or hypoxia is also regulated by the interplay of chromatin-modifying enzymes. Likewise, dysregulation of the lymphatic system underlies the development of the metabolic syndrome. New technologies using omics approaches have now allowed the detection of chromatin and RNA molecules that directly interact in n...

ea0089c40 | Clinical – Surgery/Applied Pathology | NANETS2022

TP53 Mutation Portends a Worse Overall Survival in Patients with Advanced Grade 3 Well-Differentiated Neuroendocrine Tumors

Joseph Nancy , Paciorek Alan , Khuong Le Bryan , Moon Farhana , Zhang Li , Bergsland Emily

Background: The well-differentiated grade 3 neuroendocrine tumor (G3NET) category was introduced in the 2017 WHO classification as a new category of high-grade neuroendocrine neoplasm (NEN). G3NET is thought to have worse overall survival (OS) than lower grade NET, but better OS than poorly differentiated neuroendocrine carcinoma (NEC). However, challenges in pathologic diagnosis and changes in terminology have limited our understanding of the G3NET category. We compared outco...

ea0089p7 | Population Science | NANETS2022

Feasibility of e-NET: A Web-Based Health Platform to Investigate Quality of Life in Patients with Neuroendocrine Tumors

Mulvey Claire K. , Steiding Paige , Moon Farhana , Paciorek Alan , Zhang Li , Bergsland Emily K.

Background: Patients with neuroendocrine neoplasms (NENs) have chronic symptoms from hormone overproduction, tumor growth and metastasis, and side effects from prolonged treatment. We assessed the feasibility of using a digital health platform to recruit patients with NENs to evaluate symptoms and quality of life.Methods: eNET is a prospective, web-based, cohort study for patients with advanced NENs of any primary site, histologic grade, differentiation,...

ea0089o4 | Other | NANETS2022

Immune Cell Molecular Pharmacodynamics of Lanreotide in Relation to Treatment Response

Alaklabi Sabah , Maguire Orla , Zhang Yali , Chow Jacky , Wang Jiamin , Minderman Hans , Iyer Renuka

Background: Lanreotide is clinically effective in advanced neuroendocrine tumors (NETs). The inhibitory effect of lanreotide on tumor cells proliferation is due to binding to somatostatin receptors (SSTR1-5). It has been demonstrated that immune cells express SSTR1-5 differentially. The exact effect of somatostatin analogs (SSAs) on T cell function is not understood.Methods: In vitro and in vivo effects of lanreotide on immune cells wer...

ea0063oc2.2 | Diabetes 1 | ECE2019

Elevated glucose uptake in skeletal muscle with increased sarcolemma translocation of GLUT4 and glycogen synthesis contributes to bariatric surgery mediated diabetes remission

Liu Qiaoran , Huang Xin , Cheng Yugang , Liu Teng , Zhong Mingwei , Zhang Guangyong , Hu Sanyuan , Liu Shaozhuang

Background: Bariatric surgery can profoundly ameliorate hyperglycemia and improve insulin sensitivity thus contribute to diabetes remission. However the detailed mechanisms underlying this effect is yet to be revealed. The aim of this research is to investigate the metabolic alterations in skeletal muscle after bariatric surgery and explore the possible mechanisms to further explain the diabetes remission effect of bariatric surgery.Methods: Duodenal-jej...

ea0063gp162 | Cushing's | ECE2019

Pharmacokinetics of osilodrostat following single and multiple doses of osilodrostat in healthy subjects and patients with Cushing’s disease

Han Kevin , Tauchmanova Libuse , Atkinson Susan , Darstein Christelle , Zhang Xinrui , Combes Francois Pierre , Pedroncelli Alberto M

Introduction: Osilodrostat is a potent oral 11β-hydroxylase inhibitor currently in Phase III clinical development for the treatment of Cushing’s syndrome (CS). The key pharmacokinetic (PK) properties, drug–drug interactions (DDIs), and population PK findings for osilodrostat in humans are summarized.Methods: Osilodrostat PK has been characterized in nine Phase I studies (healthy subjects and subjects with hepatic or renal impairment), two ...

ea0063p365 | Thyroid 1 | ECE2019

Comparison of G-CSF and non-G-CSF treatment of agranulocytosis in patients with hyperthyroidism: a meta-analysis

Wang Yonghui , Li Xiaoying , Yang Qian , Zhang Yanan , Liu Jun , Zheng Liang , Zha Bingbing

There are potential benefits and risks to receive Granulocyte-Colony Stimulating Factor (G-CSF) as a general treatment in hospital. To assess the clinical effect of G-CSF or non-G-CSF on recovery duration for agranulocytosis patients with hyperthyroidism, we analyzed the overall clinical outcomes by meta-analysis. We included published seven retrospective studies and 1 prospective study. Individual data were obtained from eight trials (376 patients: 215 with G-CSF, 161 with no...

ea0049oc7.5 | Cardiovascular endocrinology (1) | ECE2017

Regulation of steroid receptor signalling by tumor suppressor INPP4B

Zhang Manqi , Suarez Egla , Nathanson Lubov , Ittmann Michael , Weigel Nancy , Agoulnik Irina

Androgen receptor (AR) signaling is the main driver for prostate cancer progression and androgen ablation is the treatment of choice for tumors that spread beyond the prostate. Efficient at first, androgen ablation fails due in part to altered cell signaling and expression of AR spice variants. Cell signaling in prostate cancer is regulated by dual specificity phosphatases and tumor suppressors INPP4B and PTEN that are lost with prostate cancer progression. Loss of PTEN destab...

ea0049oc13.3 | Reproduction & Endocrine Disruption | ECE2017

Sertoli cell expressed hydroxysteroid (17beta) dehydrogenase 1 is required for male fertility

Hakkarainen Janne , Jokela Heli , Zhang Fuping , Kotaja Noora , Sipila Petra , Poutanen Matti

: Hydroxysteroid (17beta) dehydrogenase 1 (Hsd17b1) is a steroidogenic enzyme catalyzing the conversion of estrone (E1) to estradiol (E2), and androstenedione (A-dione) to testosterone (T). We have shown that the deletion of Hsd17b1 gene in mice resulted in the failure of ovarian estrogen production and subfertility. In this study, we clarified the role of Hsd17b1 in male reproduction. The data revealed that in mice Hsd17b1 mRNA is highly expressed in the Sertoli cells at the ...

ea0049gp11 | Adrenal 2 | ECE2017

A country comparison of glucocorticoid replacement therapy in patients with primary and secondary adrenal insufficiency: data from the EU-AIR

Ekman Bertil , Quinkler Marcus , Zhang Pinggao , Zelissen Pierre , Murray Robert D.

Introduction: The daily maintenance dose of conventional hydrocortisone currently recommended by international guidelines for the management of primary adrenal insufficiency (PAI) or secondary adrenal insufficiency (SAI) is 15−25 mg/day, in 2−3 divided doses. The aim of this analysis was to investigate inter-country differences in glucocorticoid replacement doses in patients with PAI and SAI.Design: EU-AIR (ClinicalTrials.gov identifier: NCT0...