Endocrine Abstracts

Total vitamin D levels are decreased in obese patients probably due to an increased volume of distribution mechanism. Recently introduced direct assays allow the measurement of free-vitaminD3 levels (fvitD3). Few data are available regarding fvitD3 levels in obese people and the effect of bariatric surgery upon its circulating concentration. We aimed to evaluate fvitD3 in a cohort of obese patients before and after bariatric surgery treatment and its relationship to phosphocal...

We aimed to assess the effect of sleeve gastrectomy (SG) on the metabolic and gut microbiota profiles in non-diabetic obese patients with different grade of insulin resistance (IR).Methods: Prospective study of 22 morbid non-diabetic obese patients (77.2% women, age 47.13±9.51 years, basal BMI 45.59±4.99 kg/m2, 11 IR and 11 non-IR) undergoing SG. A fasting blood sample was collected at baseline and at 6 months post-SG for the determi...

Introduction: Bariatric surgery is an effective therapy for patients with type 2 diabetes mellitus (T2D). Many mechanisms have been proposed for its metabolic benefits, such as caloric restriction, weight loss, increased secretion of gut hormones like glucagon-like peptide 1 (GLP-1) and 2 (GLP-2), bile acid diversion, decrease of pancreatic and hepatic fat deposits and changes in gut microbiome.Aims: Evaluate changes after surgery in gut microbiome profi...

Background: Obesity can lead type 2 diabetes (T2D), however there are patients with obesity who present euglycemia. The mechanisms by which T2D appears have not been fully elucidated. Oncostatin m (OSM) is a proinflammatory cytokine, member of the IL-6 family, which is increased in obesity in mice and humans, and impairs browning in mice. Here, we aim at evaluating the potential role of OSM in the development of T2D in patients with obesity.Material and ...