Endocrine Abstracts

Objective: According to some authors a higher incidence of subclinical hypercortisolaemia is found among patients with bilateral adrenal tumors with benign phenotype than with unilateral ones. The question is whether all patients with bilateral adrenal tumors and subclinical hypercortisolemia should undergo surgery and, if yes, which of the tumors should be removed first.Patients and methods: The investigated group consisted of 25 patients with benign bi...

Mutations in the (glucokinase) GCK gene are, along with the HNF1A gene mutations, the most frequent cause of (maturity onset diabetes of the young) MODY. Heterozygous loss-of-function GCK mutations result in a moderate fasting hyperglycemia. The GCK-MODY patients are usually free from microvascular complications; however, little is known about atherosclerosis and intermediate related phenotypes. We aimed to examine intima-media thickness (IMT) and endothelial function in GCK-M...

Background: In our earlier study we found that pituitary adenomas, like other human tumours, express ectopically follicle stimulating hormone receptors FSH in intratumoral blood vessels endothelia and/or tumoral cells. The aim of the present paper is to provide the more detailed data on FSHR expression in different subtypes of pituitary adenomas and to evaluate its possible role as a prognostic and/or predictive biomarker in these tumours.Material and me...

Introduction: Turner syndrome (TS) is a condition caused by structural or numerical abnormalities of X chromosome. Growth deficiency is characteristic for patients with TS, and particular karyotype abnormalities of the X chromosome may be associated with different responsiveness to human GH (hGH) therapy. The aim of the study was to determine the effect of TS karyotype on growth velocity during hGH therapy in TS.Methods: 23 TS patients treated with hGH w...

Purpose: The pathogenesis of idiopathic GH deficiency (GHD) in children, including possible cerebral metabolic alterations, remains unclear. The aim of the study was to evaluate the metabolic changes within the normal appearing brain in children with GHD using MR spectroscopy (MRS) and to correlate MRS measurements with hormonal concentrations.Materials and methods: 71 children with GHD (mean age 6.9 years) and 11 healthy controls (mean age 8.4 years) we...

Introduction: Subclinical hypothyroidism (SCH) can impair concentration and memory skills. If this is a case among adolescents it may impair learning abilities, which in turn may be the cause of poorer performance on various tests and exams. Therefore, the aim of this study was to evaluate the prevalence of SCH in teenage girls attending the gymnasia in the city of Starogard Gdański.Material and methods: In total 487 girls (age range 11.5–14.7 ...

Introduction: Thyroid cancer incidence has increased significantly during the past decades and is the most common type of endocrine malignancy. Suitable criteria for detecting malignant thyroid tumors are still missing. Therefore, the discovery of molecular markers linked to thyroid carcinogenesis will be helpful in the diagnosis of malignant tumors and managing their appropriate treatment.Aim: The objective of the study was to evaluate survivin expressi...

Background: Renal hyperparathyroidism (rHPT) may affect up to 30% of dialysispatients with end-stage renal disease (ESRD). rHPT is associated with an increased risk of cardiovascular events (CE) and bone diseases such as pain or renal osteodystrophy. Total or subtotal parathyroidectomy may be a chance to reduce the severity of the symptoms and decrease the risk of CE and death. Pre-operative scintigraphy and ultrasound diagnostics in rHPT may be insufficient at even up to 60% ...

Skeletal muscle and adipose tissue has been identified as an endocrine organ and their metabolism exerts an impact on whole-body metabolism. Endocrine functions attributed to adipokines and myokines are involved in body weight regulation and insulin sensitivity. Obesity is associated with dys-regulation of adipose tissue and skeletal muscle metabolism and is accompanied with insulin resistance. Our study investigates the effect of insulin regulated aminopeptidase (IRAP) inhibi...

Introduction: Copeptin can be used as a tool to directly assess serum antidiuretic hormone (ADH) level. A certain pool of ADH are synthesized in hypothalamus, together with corticoliberin (CRH). Then they are released into the pituitary portal circulation, where through the V1bR receptor ADH stimulates adrenocorticotropic cells and ACTH secretion, followed by cortisol and catecholamines production. The stimulus for ADH secretion is, among others, stress. In turn, presynaptic s...