Endocrine Abstracts

Background and objective: 111In-DPTA-Octreotide (Octreoscan) has limited spatial resolution and a somewhat lower receptor affinity of the radiopeptide compared to DOTATATE, a novel somatostatin analogue, which can be radiolabelled with 68Ga and adapted for PET imaging, resulting in an increased spatial resolution. The aim of this study was to evaluate the diagnostic performance of 68Ga-DOTATATE PET in patients with NET and to compare this tecni...

Background and objective: Pituitary adenomas (PAs) affect about half of the patients with multiple endocrine neoplasia type 1 (MEN1); in the most of cases PA is a PRL-oma and generally more aggressive than the sporadic form. The aim of this study is to evaluate the recent changes in clinical presentation and therapeutic approach of MEN1-related PAs.Patients and methods: The study population included 17 patients with MEN1-related PA followed-up between 19...

Introduction and aim: Primary hyperparathyroidism (PHP) is the most frequent endocrine abnormality in MEN1 affecting about 100% of cases and inducing severe bone and kidney complications. Although surgery represents the only curative approach in MEN1 PHP, novel drugs are now available to effectively control PHP. The objective of this study was to show the recent changes in clinical presentation and therapeutic approach in MEN1-related PHP occurred in the last years.<p clas...

Background: Endothelial dysfunction may have deleterious effect cardiovascular pathology in diabetic patients.Atrial natriuretic peptide (ANP) exerts beneficial effects on the cardiovascular system in part by exerting antioxidant activity. Recently it was reported that ANP is able to exert an antihypertrophic effect in myocitos at least in part due to inhibition of NADPH oxidase and superoxido generation.It seems that hyperglucemia...

The medical and social importance of a problem of a gestational diabetes (GD) is caused by higher probability of occurrence of the complicated current of pregnancy and delivery. Frequency of a GD varies within 1.5–13% from total pregnancies, essentially increasing in risk groups.Materials and methods: One hundred and fifty-six pregnant women in different periods of gestation were examined. The estimation of GD’s risk factors was spent to all wo...

Background: Primary aldosteronism is a common cause of arterial hypertension, but its underlying molecular mechanisms are unknown. K+ is a key regulator of aldosterone secretion: it interacts with physiological secretagogues of aldosterone as angiotensin II (Ang II) end endothelin-1. In vivo genetic manipulation of a widely distributed class of channels, which generate background or ‘leak’ potassium (K+) currents, the twik-related acid-se...

Context: Neuroendocrine tumors (NETs) are rare neoplasms, heterogeneous, with variable biological behaviour. NETs can be sporadic or they can arise in complex endocrine hereditary syndromes such as Multiple Endocrine Neoplasias (MEN), Familial Paragangliomatosis (FPGL), Neurofibromatosis type 1 (NF1), von Hippel-Lindau Disease (VHL), Tuberous Sclerosis (TSC) and Carney Complex (CC). By performing genetic screening, patients with hereditary NETs can be identified before the dev...

Objectives: The fetus is dependent on maternal thyroid hormones during pregnancy and an adequate thyroid function during pregnancy is essential for the normal brain development. The effects of subclinical hypothyroidism during pregnancy are poorly known. The present study assesses the association between thyroid hormones and thyrotropin in healthy pregnant women from the general population, and the neurodevelopment of their children at the age of 14 months.<p class="abstex...

Pregnancy is a state of physiological hyperphagia and represents a good model to unravel the mechanisms involved in feeding regulation. The hyperphagia is the main responsible for the positive energy balance in gestation, which is necessary for maintaining maternal energy stores. The presence of high serum leptin levels and hyperphagia during pregnancy is a paradoxical event and reflects a state of leptin resistance. In order to evaluate the mechanisms for hypothalamic leptin ...

Familial acromegaly (FA) is a rare disease with less than 150 cases published. For its diagnosis (FA), two or more cases of acromegaly in the same family and the absence of MEN1 and/or Carney syndrome are required. FA is in the familial isolated pituitary adenomas (FIPA) group although its genetic condition is still under investigation.The index case is an asymptomatic 43-year-old woman with a 4mm pituitary micro-adenoma. There were not acromegaly signs/...