Endocrine Abstracts

We have shown that 5-hydroxytryptamine (5-HT) receptor type 4 (5-HT4R) agonists stimulate aldosterone production in patients with aldosterone-producing adenoma (APA). Moreover, 5-HT-positive cells were observed in APA tissues and 5-HT4R mRNAs were markedly overexpressed in APAs in comparison with normal adrenals. All these results suggested that 5-HT produced by adrenal mast cells could be involved in the physiopathology of APAs. The aim of this work was to investigate the rol...

Context: Somatostatin receptor ligands (SRLs) are the cornerstone medical treatment of acromegaly, however many patients remain uncontrolled under SRLs. Well-established predictive markers of response are needed.Objective: We aimed to explore the relationship between responsiveness to SRLs, on one hand, and somatostatin (SST)2A and 5 receptor expression, adenoma granulation, and T2-weighted MRI signal intensity (T2WSI), on the other hand.<p class="ab...

Osteoporosis is a major public health problem that is responsible for a considerable morbidity, mortality and health care costs. Evaluation of fracture risk is essential to select patients who will benefit most of interventional strategies. Most prospective cohort studies, with fracture outcomes, rely on participant self-report as the main or only source of information on fracture incidence. Systematic validation by screening of medical files is time-consuming, costly and almo...

Introduction: Osteoporosis is characterized by a low bone mass and a microarchiterctural disruption. Ageing and estrogen deficiency are the two most important factors for developing osteoporosis. With advanced age the balance between bone formation and resorption becomes progressively negative and non-bone factors contribute to the increased fracture risk with advancing age. Osteoporotic fractures constitute a major cause of morbidity and mortality in the elderly. Post-menopau...

Adipsic hypernatremia, a rare hypothalamic disorder characterized by a loss of thirst in response to hypernatremia is more often reported in children. An autoimmune mechanism has been recently demonstrated. We report two cases.Case1: A lean 67-year-old female, with a history of multilocular sclerosis, was admitted, for severe hypernatremia (162 mmol/l) with low ADH level (0.5 pmol/l; N: 0.5-2). She did not complain of thirst, despite ideomotor slowing an...

In large population-based epidemiological studies of osteoporotic fractures, self-report is an important way of obtaining information. However, this method is subject to errors of recall and may result in misclassification of fracture status. Surprisingly, the accuracy of self-reported fractures has only rarely been assessed. The purpose of our study was to assess the accuracy of self-reported fractures in the FRISBEE cohort (Brussels, Belgium) of 3560 postmenopausal, aged 60&...

Introduction: Adrenocortical Carcinoma (ACC) is a rare and aggressive tumor with poor prognosis. Up to now, CTNNB1 (βcatenin) and TP53 mutations were the most frequent alterations identified in ACC. By a combination of genomic approaches, we have recently analyzed a cohort of 122 ACC (European Network for the Study of Adrenal Tumors, ENSAT). This work confirmed recurrent alterations in CTNNB1 and TP53 and revealed new genes not previous...

Lipodystrophy (LD) and obesity are opposites in terms of a deficiency versus excess of adipose tissue mass, yet these conditions are accompanied by similar metabolic consequences. VAT has not been well quantified in LD. The aim of this study was to compare the metabolic profile and VAT in different kinds of LD. Six-eight adult patients (45 females) referred for LD were classified in four groups: 23 LMNA-mutated patients (LMNA), 14 non-mutated related to the LMNA-...

Context: Individualized fracture risk may help to select patients requiring a pharmacological treatment for osteoporosis. FRAX and the Garvan fracture risk calculators are the most used tools, though their external validation has shown significant differences in their risk prediction ability.Objective and Methods: Using data from the FRISBEE study, a cohort of 3560 post-menopausal women aged 60-85 years, we aimed to construct original 5-year fracture ris...

Introduction: Nivolumab is an anti-PD1 immunotherapy that restores the immune response against cancer cells, but can induce fulminant diabetes. The prevalence of such anti-PD1 induced diabetes is not clearly determined, but it has been recently estimated between 0.4% and 0.9% in recent studies. Here, we performed a monocentric epidemiological study in order to assess the prevalence and provide a description of Nivolumab-induced diabetes cases.Material an...