Endocrine Abstracts

Background: Gastrin is an early incretin candidate, since it is released by oral glucose and potentiates the glucose-induced insulin secretion. It has been shown that only in hypoglycaemic or hyperglycaemic conditions gastrin release is influenced by changes in blood glucose and insulin concentrations.Aim: To evaluate whether there is a relation between fasting serum glucose and serum gastrin concentrations.Methods: Gastrin and glu...

Introduction: Insulin-like growth factor-I (IGF-I) has a role in cell proliferation, differentiation, migration, and survival. By alternative splicing different IGF-I mRNA transcripts as IGF-IEc (mechano growth factor, MGF) or IGF-IEa variants are produced. MGF induces muscle hypertrophy and implicated in the pathophysiology of various types of cancer. Aim of the study was to investigate the role of MGF in the pathophysiology of neuroendocrine neoplasms (NENs).<p class="ab...

Introduction: Neuroendocrine neoplasms (NENs) are rare and heterogeneous neoplasms with variable biological behaviour but generally slow progression.Methods/design: 355 patients with NENs registered in our data-base have been studied (166 females, mean age: 52 years; range: 11–88), during the period 2004–2014. TNM system has been used for staging and proliferation index Ki-67 for grading.Results: Out of 355 patients, 35 (...

Introduction: ACTH-secreting pituitary carcinomas are rare neoplasms but there are not factors till now to predict their aggressive evolution nor a standard practice to their management.Case report: We report a 43-year-old female patient presented in 1990 with Cushing’s syndrome due to ACTH-secreting pituitary microadenoma who had been submitted on trans-sphenoidal surgery with cure as defined by post-operative cortisol serum levels <50 nmol/l. ...

Introduction: Multiple endocrine neoplasia type 1 (MEN1) is a genetic disorder involving mainly parathyroid tumours, pancreatic neuroendocrine neoplasms (pNENs) and pituitary tumours. In the present study we have registered demographic, clinical, imaging, pathological characteristics, therapeutic options, response to treatment and overall outcome of patients with MEN1.Methods/design: 35 patients with MEN1 registered in our data base have been studied (14...

Introduction: Primary adrenal insufficiency (PAI) can be of autoimmune origin (AI), non-autoimmune origin (bilateral adrenalectomy, acute hemorrhage, infection) (NAI) or pharmaceutical (mitotane) origin. Studies have shown that these patients develop long-term morbidities and increased mortality due to excessive glucocorticoid tissue exposure. Data about differences concerning hydrocortisone (HC) needs, cortisol hormonal levels and metabolic parameters in these patients are sc...

Introduction: Neuroendocrine neoplasms (NENs) are neoplasms with a slow progression and a 5-year survival 77–95%. It is well known that secondary deposits of NENs may dedifferentiate during the natural history of the disease, presenting a more aggressive biological behaviour.Aim of the study: The prevalence of secondary foci dedifferentiation of pancreatic NENs (p-NENs).Methods: From the NENs database of 414 patients, 160 (38....

Background: The aim of the study was to assess the clinical features of gastric neuroendocrine neoplasms type 1 (GNEN1).Methods: We have analyzed the clinical data of the first 73 patients with GNEN1 from our registry.Results: The mean age(±S.D.) of the patients (51 (68.9%) females) and the mean follow-up were 55±12.3 years and 28.8±42.2months, respectively. All patients had sporadic tumors and all wer...