Endocrine Abstracts

Aim: To quantify the effect of pegvisomant on glucose homeostasis, lipid profile and disease activity in acromegaly.Methods: 5 Patients with active acromegaly after surgery, radiotherapy and somatostatin analogs were included. Somatostatin analogs were withdrawn 6 weeks before starting pegvisomant and it was initially administered subcutaneously at doses of 10 mg daily. Doses were progressively increased every 3 to 4 weeks until IGF1 normalization. Gluco...

Objectives: The effect of exposure to endocrine disruptors (exogenous chemical compounds that interfere with hormonal homeostasis), such as Bisphenol A (BPA) and Methyl Paraben (MPB), on gestational diabetes mellitus (GDM) has only been investigated in a small number of studies, with inconclusive results. Our objective was to investigate the association between concentrations of BPA and MPB in urine and the presence of DMG, insulin sensitivity and function of beta cells in a c...

Introduction: E2F1 regulates the expression of genes required for cell cycle progression and apoptosis. miR-17-5p regulates expression of E2F1. Both miR-17-5p and E2F1 have been described deregulated in cancer but they have been scarcely studied in human pituitary neuroendocrine tumours (PitNETs).The aim of the present study was to find biomarkers of aggressiveness in PitNETs and report the correlation between E2F1 and...

Introduction: The immunohistochemical characterization of Pit-1, Tpit and SF-1 transcription factors allows the identification of the three adenohypophyseal cell lines and has been incorporated into the latest WHO classification of pituitary adenomas (PA). The aim of the present study was to quantify the protein expression of pituitary-specific transcription factors (TF) by immunohistochemistry (IHC) and to correlate these results with the identification based on hormonal prot...

Introduction: Adrenocortical carcinoma (ACC) is a very rare entity with a variable clinical presentation.Objective: To review the casuistry of ACC in our center in the last 15 years and to assess clinical characteristics and evolution in our patients.Material and method: We searched cases of ACC from 2004 to December 2018 registered in the Pathology Department.Results: Fifteen cases were found, 9 women and 6 ...

Introduction: Adrenal vein sampling (AVS) is the gold standard test to distinguish between unilateral adenoma and bilateral hyperplasia in primary hyperaldosteronism. This is a technical complicated procedure with a variable success rate. Our aim was to report our 10-year-success rate and results as regards to this procedure.Material and Methods: Retrospective observational study including data from patients undergoing AVS between 2009 and 2019.<p cl...

Introduction: Gonadotroph tumours (GT) are the most common subtype of silent pituitary neuroendocrine tumours. The diagnosis of this subtype of tumours is established after surgery. There are no reliable markers of aggressiveness to predict their clinical course and, moreover, immunohistochemistry (IHC) usually classifies GT as null cell tumours. The aim of the present study was to correlate molecular, immunohistochemical and biochemical gonadotropin expression, to quantify th...