Endocrine Abstracts

Low testosterone levels are one of the causes of male infertility since testosterone is a crucial hormone for the regular functioning of the male reproductive tract. Testosterone is produced by Leydig cells (LC) in a process called testicular steroidogenesis, and if these cells are injured in any way, then the steroid production may be compromised. Endocrine Disrupting Chemicals (EDCs) are a group of substances that disturbs hormonal signaling. Their chemical nature and mode o...

Introduction: Von Hippel–Lindau syndrome (VHL) is an autosomal dominantly inherited neoplastic disorder with marked phenotypic variability, characterized by a broad spectrum of clinical manifestations in central nervous system (CNS) and viscera. Specific gene mutation can be demonstrated; however imaging plays an important role in diagnosis. 68Ga-labelled somatostatin analog (68Ga-DOTANOC) PET-CT is routinely employed for somatostatin receptor (SSTR) imaging, mainly for n...

Papillary carcinoma is the most common histological type of thyroid cancer. The optimal treatment remains controversial, particularly with regard to the papillary microcarcinoma (≤ 10 mm).The aim of this study is the characterization of patients with this condition undergoing surgery in our hospital over a period of 30 years, evaluating treatment outcomes.Between January 1, 1980 and December 31, 2010, a total of 564 patients ...

Control of CRFs in T2DM patients results in a clinically important reduction in the risk of death and complications related to diabetes.Objective: To assess the degree of control of modifiable CRFs in treated T2DM patients, stratified by diabetes therapy.Materials and methods: Cross-sectional study in 574 T2DM patients who attended our clinic for a routine follow-up. Fasting plasma glucose (FPG), HbA1C, HDL-Cholesterol (HDL-Ch), LD...

Introduction: The diagnosis of hyperparathyroidism can be challenging especially when surgery is mandatory and imaging techniques can not find the adenoma. PEt colina is a non-invasive diagnostic test that creates images of the parathyroid glands and detects abnormal activity. It is increasingly used and especially useful when there are no pathological findings in parathyroid scintigraphy.Methods: This is a retrospective observational study with data fro...

Polycystic ovary syndrome (PCOS) is one of the most prevalent endocrine disorder of women at reproductive-age and accounts for 80% of the causes of anovulatory infertility. Despite the widely characterized reproductive, endocrine, and metabolic abnormalities, the mechanisms underlying PCOS remain unclear. Thus, it is essential to identify novel biomarkers that will allow to disclosure novel pathways involved PCOS pathophysiology, which could then be used to improve PCOS manage...

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 (...

Few studies have evaluated bone histomorphometry in type 2 diabetic patients (DM2) and none has established if the disease control plays a role on bone morphology and bone marrow adipocytes. The aim of this study is to present preliminary data on bone microstructure, bone formation rate and bone marrow adipocytes in premenopausal women with DM2 with different levels of glucose control. Bone biopsy, followed by tetracycline labelling, was obtained for analysis of static and dyn...

Introduction: Diabetes mellitus (DM) is an expected condition in Cushing syndrome (CS) but there are few data about prevalence and factors associated to occurrence of DM in these patients.Objective: To determine the main aspects of DM in CS through a systematic review (SR) of the literature.Methods: MEDLINE and LILACS were searched for studies published until March, 2016. Search strategy comprised the terms “Diabetes Mellitus&...

Objective: The recommendations for action in a Bethesda category III are to repeat the cytology or to perform molecular tests, and if these are inconclusive, surveillance or surgical indication may be maintained, depending on the risk factors, ultrasound characteristics of the nodule and patient preference. In case of category IV of Bethesda, the recommendation is the surgery. The objective of this study was to evaluate the impact of age, gender and nodule size on the incidenc...