Endocrine Abstracts

The pituitary is an anatomically well protected endocrine gland in permanent contact with the central nervous system. Although it was known that pituitary has plasticity in response to the physiological demands of the body, there were few clear data about the post-natal mechanisms in charge of this plasticity. The discovery of a group of cells expressing stem cell markers precisely organized in the outer zone of the adenopituitary open up new possibilities to explain the const...

Introduction: Multinodular Goiter (MNG) is a thyroid neoplastic disease thirteen times more common in women than in men. While a local effect of estrogens at cellular levels could affect there can be other causes to explain the gender difference in incidence such as diet, environmental factors, genetic causes or alterations in metabolic pathways.Cellular effects of estrogens in human thyrocytes although previously studied are not completely clarified. So...

Background: Dopamine agonists are first-line agents for the treatment of prolactinomas and sometimes are used in patients with acromegalia. There is evidence that these drugs, especially cabergoline, are associated with an increased risk of new cardiac valve regurgitation in patients treated for Parkinson’s disease.Objective: Our objective was to evaluate the prevalence of cardiac valve regurgitation in patients with prolactinomas and acromegalia tr...

Background: Typical presentation of adrenal pheochromocytomas (PHEOs) is a combination of variable hypertension with paroxysmal symptoms. However, recent improvements in diagnostic imaging techniques and increasing availability of genetic testing have facilitated presymptomatic diagnosis of PHEOs.Objetive: To analyse the clinical features at presentation of PHEOs in a multicentric study population.Design and patients: Seven Spanish...

Introduction: About 30% of all familial isolated pituitary adenoma (FIPA) and 50% of acromegaly families have a mutation in the aryl hydrocarbon receptor-interacting protein gene (AIP; Chahal, TEM, 2010). The functional role of AIP in somatotroph cells is unknown. Recently, it has been proposed that wild type AIP (wtAIP) is a tumor suppressor gene, role that is lost in the different mutant AIPs (mAIP; Leontiou, JCEM, 2008). In the adenomas, mAIPs are usually foun...

Up to now there are few studies about differential proteomics in thyroid. Our group has developed a method for standard human primary thyroid culture maintaining the phenotype through passages. Thus, we believe of great interest the search for biomarkers in these cultures by 2D-PAGE coupled to MALDI-TOF/TOF-MS.Aims: i) To standardize the conditions for sample extraction and controls. ii) To compare and identify the differential proteomic pattern between ...