Endocrine Abstracts

Background: Insulin-related peptides are found in Cnidaria (the most ancient animals with differentiated tissues including a nervous system, dating from 600 million years ago) and their nucleotide sequence has been highly preserved ever since. In mammals the binding of insulin to its receptor causes a cascade of actions, the main one being translocation of GLUT4 glucose transporters to the plasma membrane allowing influx of glucose into the adipose and striated muscle cells. B...

Introduction: The prevalence of obesity has increased, reaching epidemic proportions. Framingham and REGICOR scales predict the likelihood of developing a coronary event in the next 10 years. The aim of this study was to assess the concordance of these scales in the stratification of cardiovascular risk (CVR) in a cohort of patients with morbid obesity.Methods: We designed a cross-sectional study in a sample of patients with morbid obesity evaluated from...

Introduction and objectives: Testosterone therapy (TT) in female-to-male transsexuals (FMT) usually causes cessation of menses within the first few months. However the changes in the hormonal profile are not well known. We set out to analyze the hormonal changes and menstrual evolution in a cohort of FMT who began TT.Methodology: Retrospective observational study with no control group in a cohort of 34 FMT patients who started TT following a standard pro...

Introduction: In preliminary results of our group, we detected an association between the mean nocturnal blood pressure and development microvascular complications. The objective was to evaluate possible nocturnal blood pressure cut off points in relation to the development or progression of retinopathy, microalbuminuria and arterial hypertension in type 1 diabetic patients.Methods: We designed a prospective observational study of 85 patients, clinically...

Purpose: MicroRNAs (miRNAs) are a fundamental component of gene regulation mechanisms. Presently, altered miRNA patterns of expression have been documented in different human cancers, and they may explain the distinct behavior of pituitary adenomas (PA) and the differences between subtypes. miR-375 can target among other genes to IGF1 receptor (IGF1R) and participes in reprogramming cancer cell metabolism. The aim of this study was to assess the miR-375 role on pathogenesis of...

Purpose: The 2004 edition of the WHO text ‘Histological typing of endocrine tumors’ classified pituitary adenomas (PA) on the basis of their histological and immunohistochemical characteristics. Recent advances on the knowledge of the molecular patterns of these tumours may allow establishing a molecular classification with higher accuracy and specificity than previous one.Methods: Within the pale of the multicenter Spanish Molecular Registry o...

Introduction: Follicular tumours of the thyroid gland include benign follicular adenomas, follicular carcinomas and the follicular variant of papillary carcinoma. Although, molecular markers are a promising area of research to differentiate thyroid neoplasms, there is ample room for improvement in the research and clinical applications in this field. Furthermore, the final diagnosis requires thyroid lobectomy. The present study examined whether a differential protein expressio...

Purpose: IGF receptor 1 (IGF1R) and epidermal growth factor receptor (EGFR) are receptors tyrosine-kinase (RTK) whose altered signaling are critical factors in development of many types of tumours. These RTK are some of the main targets of the microRNA miR-7. This important tumor supressor miRNA has the ability to inhibit the motility, invasiveness and anchorage-independent growth, suggesting a strong therapeutic potential in many types of cancer. Pituitary adenomas (PA) are a...

Introduction: Hyponatremia is the most frequent electrolyte disorder in hospitalised patients. Our aim was to determine the incidence, mean hospital stay, readmission rate and mortality rate among patients with acute heart failure (HF) and hyponatremia.Methods: Retrospective analysis of data collected from the minimum data set (MDS) of Spanish National health System during 2005–2012 from discharged patients of Internal Medicine with HF and hyponatre...

Introduction: Hyponatremia is the most common electrolyte imbalance among hospitalised patients. Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is considered the most frequent etiology on patients with euvolemic hiponatremia. Conventional treatment includes water restriction and salt tablets with limited efficacy and very slow onset of action in certain patients.Material and methods: Systematic sampling of all SIADH patients treated wit...