Endocrine Abstracts

Objectives: The gestations in patients with type 1 diabetes are associated with an increase in maternal-fetal complications. Adequate glycemic control during pregnancy has been shown to reduce adverse events. Given that, the treatment with insulin pump improves glycemic control and that pregnancy implies constant changes in insulin resistance, our objective is to analyze the changes in insulin requirements in pregnant patients under CSII.Materials and me...

Introduction: The aim of our study was to evaluate the causes of thyrotoxicosis detected during pregnancy as well as to determine the prevalence of thyroid nodular disease (TND) in our population and which factors are associated with this condition.Methods: We performed a retrospective review of 1,760 patients between April 2014 and September 2017 remitted from the gynecology department due to thyroid dysfunction detected in the 9th week of pr...

Introduction: An increased risk of thyroid disease (TD) has been described in patients with type 1 diabetes (DM1) with respect to the general population. The objective is to establish the incidence and characterize the differences in patients who develop TD in relation to the debut of DM1 (previous, concurrent or a posteriori).Materials and methods: Retrospective study of 1126 patients followed up in Endocrinology consultations in Navarra. Three types of...

Objectives: Prognosis of differentiated thyroid carcinoma (DTC) is usually good, but even so a proportion of the patients develop recurrences and eventually die of the disease. The aim of this study was to analyze the clinical and histopathological features of patients with DTC in our center and to identify prognostic factors in this group of patients.Patients and methods: We reviewed, retrospectively, 213 patients (184 females and 29 males, mean age 48....

Introduction: Hypothyroidism during pregnancy has been asociated with adverse maternal and neonatal outcomes. During pregnancy, maternal levothyroxine (LT4) dose requirements increase. The aim of this study is to determine the increase of LT4 doses during pregnancy in pregestational hypothyroid women.Methods: We included 76 hypothyroid pregnant women. We analyzed analytical and clinical characteristics of these patients, as well as the increase of LT4 re...

Non-functioning pituitary tumors (NFPTs), although benign in nature, frequently present local invasiveness that strongly reduces neurosurgery success. Medical therapy is still under debate, although dopamine (DA) receptor 2 (DRD2) agonists may induce tumor shrinkage in some patients. Aims of this study were: 1) to evaluate the effect of DR2D agonist BIM53097 on migration and invasion of NFPT cells, 2) to investigate the molecular mechanisms regulating the motility of these cel...

Dopamine agonists (DA) inhibit prolactin (PRL) secretion and expression on the pituitary lactotrophs by binding dopamine D2 receptor. Prolactinomas are the most common secreting pituitary adenomas, and DA are the first choice for their treatment because they reduce PRL levels and tumor size. However, a subset of patients is resistant to DA. The mechanisms involved in DA resistance are not fully understood, although decreased expression of D2 receptor or altered signal transduc...

Background: Aberrant cAMP signalling is involved in the pathogenesis of somatotropinomas. Recently, variants of phosphodiesterase type 11A (PDE11A) gene have been described in patients with adrenocortical tumors. Aim of the study was to investigate the presence of these variants in patients with somatotropinomas.Subjects and methods: Germ-line DNA of 78 acromegalic patients was screened for known genetic variants of PDE11A by direct sequencing or restric...

Background: Multiple endocrine neoplasia type 1 (MEN1) is a rare hereditary autosomal dominant tumor syndrome caused by inactivating mutations of the tumor suppressor gene MEN1 which encodes the protein menin. It is characterized by the occurrence of tumors involving two or more endocrine glands, primarily parathyroid, entero-pancreatic, and anterior pituitary, as well as non-endocrine neoplasms. Glucagonomas occur in fewer than 3% of patients with MEN1, causing hyper...

Recently, the G534E variant of the HABP2 gene was reported as the underlying genetic defect in large kindred with non-syndromic familial non medullary thyroid cancer (FNMTC), but these data were not confirmed in additional cohorts. Consistently, we found in our wide series of FNMTC that the HABP2G534E variant is frequent, but does not segregate with the disease. Nevertheless, a possible role for this gene in the pathogenesis of FNMTC cannot definitely ruled out also because co...