Endocrine Abstracts

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...

Introduction: Non-alcoholic fatty liver disease (NAFLD) is the commonest cause of chronic liver disease in the western world affecting 5-33% of the general population. Polycystic ovarian syndrome (PCOS) is a common endocrinopathy affecting 6-10% of women of reproductive age. In both conditions, insulin resistance (IR) seems to be a common pathogenetic mechanism.Objective: To investigate the presence of NAFLD in lean and obese women with and without PCOS ...

BackgroundRecent data have shown the anti-apoptotic effect of Chchd2 mitochondrial protein through the Bcl-2/Bax pathway in various cancers. Bax is regulated primarily by proteins-members of Bcl-2 family and mainly the Bcl-2 protein, which has been found to prevent Bax from accumulating in mitochondria. In response to apoptotic stimuli, Chchd2 decreases and loses its mitochondria localization accompanying by decreased Bcl-2/Bax interaction and increased ...

BackgroundAdrenocortical carcinoma (ACC) is a rare but very aggressive endocrine malignancy with poor survival. Histopathology is important for diagnosis, while in some cases immunohistochemical markers and gene profiling of the resected tumor may be superior to current staging systems to determine prognosis.AimHerein, we aimed to present the 20year experience at a tertiary Hospital in patients with ACCs and ...

Introduction: A change in the biological behaviour of Small-Intestinal Neuroendocrine Tumours (SiNETs), as reflected by an increase in the Ki-67 proliferation index may occur over time. The purpose of this study was to evaluate longitudinal changes in Ki-67 indices of SiNETs and assess the impact of these in overall survival (OS).Patients and methods: We screened 551 patients with SI-NETs diagnosed from 1993, through 2021, identified using the SI-NET dat...

Introduction: Tumor-derived material, particularly micro-RNAs, have been identified in the bloodstream and hold promise as molecular markers for diagnosing and monitoring adrenocortical incidentalomas (AIs).Purpose: We examined selected circulating microRNAs (miR-483-5p, miR-210, miR-335, miR-22-3p), identified from microRNA profiling studies, as markers of malignancy or cortisol hypersecretion in a cohort of patients with AIs and controls in a clinical ...

Background: Neuroendocrine tumours of the appendix (ANET) are relatively indolent tumours typically identified incidentally at surgery for suspected appendicitis. The role of right hemicolectomy (RH) for tumours with ‘high risk’ features is debated. We compared the management of ANET at three centres against ENETS criteria for therapy selection.Methods: Retrospective review of all patients diagnosed with ANET at three tertiary centres. Patients...

Introduction: IGF-1 overexpression has been associated with tumorigenesis. IGF-1Ea, IGF-1Eb and IGF-1Ec isoforms were shown to be regulated differently in cancer. IGF-1Ec and IGF-1Eb overexpression has been positively associated with cell survival and proliferation in various tumors. Elevated IGF1Eb/IGF-1Ea ratio has been suggested as a biomarker of cervical cancer prognosis. Herein, we aimed to examine the expression of IGF-1 isoforms in human adrenocortical carcinomas (ACCs)...

Introduction: Ephrin receptors (EPHs) have a role in tumor growth, invasion, angiogenesis and metastasis of several neoplasms. Aim of the study was to investigate the expression and possible clinical significance of EPH-A4 and EPH-A2 protein expression in the pathophysiology of neuroendocrine neoplasms (NENs).Methods: EPH-A4 and -A2 protein expression was assessed by immunohistochemical analysis along with Ki-67 proliferation index (%) on 28 paraffin emb...

Adrenocortical carcinoma (ACC) is a rare tumor with poor prognosis and the only approved drug for advanced disease is mitotane. The cytochromes P450 (CYP) 2W1 and 2B6 are proposed predicting markers of sensitivity to mitotane treatment. Aim of the study was to evaluate the relationship between CYP2W1 and/or CYP2B6 polymorphisms and response to mitotane in ACC.Methods: We performed a multicentric retrospective study including 182 ACC patients (F/M=121/61)...