Endocrine Abstracts

Introduction: Silent somatotroph tumors (sST) are a pituitary neuroendocrine tumor subtype with positive immunostaining for growth hormone (GH) but without the presence of acromegaly. Unlike silent corticotroph tumors, there is little information in the literature on sST. The aim of the present study was to study the demographic, clinical and molecular characteristics in a series of ST in order to compare sST and functioning ST (fST).Methods: We have stu...

Introduction: Ultrasound guided Fine-Needle Aspiration (USFNA) of Thyroid is the gold standard for diagnosis of thyroid nodules. Nowadays, many patients are under anticoagulation and antiplatelet medication. Some of the rare complications of USFNA are haemorrhage therefore it’s not clear if performing thyroid USFNA in hypo-coagulated patients increase that risk of complications or if this medication should be stopped before the procedure. Additionally the influence that t...

Lentigo malign melanoma corresponds to the main histological type of melanomas ‘in situ’, particularly affecting Caucasian elderly exposed chronically to the ultraviolet rays. The therapeutic course should be surgical, with careful resection of the tumor, allowing free and wide margins. Follicular thyroid carcinoma corresponds to the second most common histological type characterized as a well differentiated neoplasm. It presents markedly vascular dissemination, bein...

Introduction: Prediabetes is a very prevalent disease. About 27.4% of Portuguese adults suffer from this condition. Prediabetes is defined as intermediate hyperglycemia state associated with the simultaneous presence of insulin resistance and β-cell dysfunction as diabetes, with increased risk of developing macro and microvascular complications. Approximately 7% of individuals with prediabetes will progress to diabetes per year. This study aims to characterize a populatio...

Introduction: Turner syndrome (TS) is one of the most common chromosomal abnormalities, characterized by systemic involvement and susceptibility to some disorders that begin or progress in adult life. These lead to an increase in morbidity and mortality and a decrease in quality of life. The aim of this study was to analyse the profile of women with TS, who are currently followed in endocrinology, regarding: karyotype, age, final height and weight, puberty and fertility, and m...

Introduction: Hypertriglyceridemia (hyperTG) may increase the risk of cardiovascular disease and values above 1000 mg/dl are a risk factor for pancreatitis, including non-fasting measurements. The American Heart Association suggested that providers could use nonfasting triglycerides >200 mg/dl to identify hyperTG states. When an elevated result is observed, a fasting triglyceride measure may be reassessed, with exception for extreme levels (for example approximately 1000 m...

Introduction: Eating habits may contribute to longevity. Consumption of red meat, source of saturated fatty acids and cholesterol may be associated with increased risks of diabetes, cardiovascular disease (CVD), and mortality risk.Methods: We studied 521 subjects, both genders, 253 centenarians (CENT) (100.26±1.98 age) and 268 controls (67.51±3.25 age), both low (LCR) and high cardiovascular risk (HCR), calculated based on QRISK®2-2016. An...

Uncoupling protein 2 (UCP2) is a mitochondrial protein located in the mitochondrial inner membrane, and it uncouples substrate oxidation from ATP synthesis, thereby dissipating the membrane potential energy and consequently decreasing reactive oxygen species (ROS) formation by mitochondrial respiratory chain. ROS overproduction is related to diabetic retinopathy (DR), a chronic complication of diabetes mellitus (DM). Recently, our group reported that the -866A/55Val/Ins haplot...

Introduction: Calcium replacement after Thyroid surgery has been changing along times. The aim for this replacement is to avoid hypocalcaemia effects after thyroid surgery but not all the patients seem to need it. Parathyroid hormone (PTH) has a short half-life after its release into the bloodstream, making it a good marker of calcium metabolism in short time after surgery.Method: Prospective study of Endocrine Surgery Multidisciplinary group of one Cent...

Products of carbohydrates, proteins and lipids hydrolysis are absorbed by specific carriers located at the enterocytes apical membrane, but little is known about the mechanisms related to their regulation by own nutrients, especially considering the high consumption of fats. Carbohydrates are transported by SGLT1, GLUT5 and GLUT2 and peptides are transported by PEPT1. Cholesterol is transported by NPC1L1 and long chain fatty acids occur through FAT-CD36 and FATP4. Thyroid horm...