Searchable abstracts of presentations at key conferences in endocrinology

ea0041ep426 | Diabetes (to include epidemiology, pathophysiology) | ECE2016

Diagnostic and therapeutic stratagies in maturity onset diabetes of the young

Oliveira Sofia , Neves Celestino , Esteves Cesar , Pignatelli Duarte , Carvalho Davide

Background: Maturity onset diabetes of the young (MODY) has an estimated prevalence of 1–5% in the diabetic population, but misdiagnosis as type 1 or type 2 diabetes is common. It comprises a heterogeneous group of monogenic diseases characterized by primary dysfunction of β cell, young onset, autosomal dominant inheritance, without autoimmunity and without ketosis. Early diagnosis remains a challenge with important future implications, since it allows treatment opti...

ea0081p284 | Adrenal and Cardiovascular Endocrinology | ECE2022

Ang-Tie pathway in adrenocortical tumors angiogenesis

Oliveira Sofia , Pereira Sofia , Costa Madalena M. , Monteiro Mariana P , Pignatelli Duarte

The majority of adrenocortical tumors (ACT) are benign and hormonally non-functioning, in contrast to adrenocortical carcinomas (ACC), which are rare and usually very aggressive tumors. The differential diagnosis between these two entities is mainly based on unspecific and subjective criteria, contributing to the inaccuracy of diagnosis. Due to ACC molecular and biological heterogeneity, prognostic factors have a limited capacity to predict ACC clinical outcomes, leading to an...

ea0049gp18 | Adrenal 2 | ECE2017

Effects of two mineralocorticoid receptor antagonists on the morphology of the adrenal cortex

Pereira Sofia S , Costa Madalena M , Moreira Angela , Carvalho Liliana , Monteiro Mariana , Vinson Gavin , Pignatelli Duarte

Arterial hypertension usually results from the deregulation and hyperactivity of the renin angiotensin-aldosterone system. One of the available therapeutic approaches for its treatment is the use of mineralocorticoid receptor (MR) antagonists, thus blocking aldosterone action.The aim of this study was to characterize the effects of spironolactone and eplerenone, on the morphology of the adrenal gland of spontaneously hypertensive (SHR) and normotensive (...

ea0049ep1181 | Male Reproduction | ECE2017

CHARGE syndrome – late diagnosis in adulthood

Costa Maria Manuel , Esteves Cesar , Castedo JoseLuis , Pignatelli Duarte , Carvalho Davide

Introduction: CHARGE syndrome is a rare autossomal dominant genetic disorder with an estimated birth incidence of 1:10000. It affects multiple organ systems and can have a variable phenotypic expression.Case report: 34-years-old man, referred to Endocrinology in the context of bilateral gynecomastia. He had an acute corneal hydrops which was treated by ophthalmology. Physical examination showed short stature (149 cm), obesity (BMI 31.5 kg/m2),...

ea0070aep55 | Adrenal and Cardiovascular Endocrinology | ECE2020

Steroidogenic proteins expression pattern in adrenocortical carcinomas

Pereira Sofia S , Costa Madalena M , Gomez-Sanchez Celso E , Monteiro Mariana P , Pignatelli Duarte

Introduction: The majority of adrenocortical carcinomas (ACC) autonomously produce steroids. However, urinary steroid profile of patients with ACC revealed that these tumors secrete and release predominantly intermediate metabolites. This steroid secretion pattern could be attributed to the undifferentiated status of the tumor cells expressing an incomplete pattern of enzymes involved in the steroidogenic cascade.Aims: Our study aim was to analyze the ex...

ea0032oc6.1 | Diabetes & Obesity | ECE2013

Type 2 diabetes risk alleles frequencies in the Portuguese population

Pignatelli Duarte , Palmeiro Aida , Lopes Alexandra , Dias Luis , Tavares Purificacao , Rendeiro Paula

Introduction: Type 2 diabetes is one of the most common health problems worldwide and its prevalence is rapidly increasing. Although environmental factors play a substantial role in the etiology, genetic susceptibility has been established as an important risk factor. Several recent genome-wide studies and linkage analysis testing have identified and confirmed various T2D susceptibility loci. However, as demonstrated by the results of the HapMap project and by other s...

ea0099p398 | Late-Breaking | ECE2024

GIP receptor is expressed by human cumulus granulosa cells

V. Moreira Mafalda , Pignatelli Duarte , Bernardino Raquel , Vale Fernandes Emidio , P Monteiro Mariana

Polycystic ovary syndrome (PCOS) is one of the most common endocrinopathies in women of reproductive age and, accounts for 80% of the causes of anovulatory infertility. Despite PCOS being often associated with obesity and insulin-resistance, these are not invariably present. As PCOS aetiology and underlying mechanisms remain unclear, clinical management is limited to target symptoms. Recent evidence suggested the potential of GLP-1 receptor agonists therapies in ameliorating P...

ea0099ep409 | Endocrine-Related Cancer | ECE2024

Glutaminase 2 expression is associated with adrenocortical carcinoma patients’ survival

B. Oliveira Sofia , Pinto Clara , M. Costa Madalena , Sousa Diana , S. Pereira Sofia , Pignatelli Duarte

Adrenocortical carcinomas (ACC) are rare and usually very aggressive tumors with heterogeneous outcomes. The individual variability in tumor progression and patients’ survival is linked to ACC biology and molecular heterogeneity, reinforcing the need to identify markers with prognosis value, to allow an accurate clinical strategy. Currently, in the absence of specific molecular markers, ACC prognosis is mainly predicted by the European Network for the Study of Adrenal Tum...

ea0099ep411 | Endocrine-Related Cancer | ECE2024

IGF2 and Ki-67 as immunohistochemistry markers for adrenocortical tumors differential diagnosis: a systematic-review and meta-analysis

B. Oliveira Sofia , Machado Mariana , Sousa Diana , S. Pereira Sofia , Pignatelli Duarte

Most of adrenocortical tumors (ACT) are benign and non-functioning tumors, in contrast to adrenocortical carcinomas (ACC), which are rare and usually very aggressive tumors with a poor prognosis. The pathological discrimination between adrenocortical adenomas (ACA) and ACC is mainly based on unspecific and subjective histological features, resulting in inaccurate diagnosis in several cases. Numerous studies have previously described the potential value of immunohistochemistry ...

ea0041ep282 | Clinical case reports - Pituitary/Adrenal | ECE2016

Cyclic Cushing’s syndrome – a diagnostic challenge

Magalhaes Daniela , Bettencourt-Silva Rita , Queiros Joana , Freitas Paula , Vinha Eduardo , Pignatelli Duarte , Pereira Josue , Carvalho Davide

Introduction: The diagnosis of Cushing’s syndrome is often challenging considering that none of the used laboratory tests has an ideal diagnostic accuracy. The complexity of the diagnosis increases in cyclic disorder, which is characterized by repeated episodes of cortisol excess followed by periods of normal cortisol secretion.Case report: A 32-year-old woman with history of arterial hypertension and obesity presented with weight gain, hirsutism, a...