Endocrine Abstracts

The pandemic increase of obesity, malnutrition and associated comorbidities encouraged intensive studies on energy balance control. Ghrelin is a brain-gut orexigenic hormone that is involved in both the short-term and long-term regulation of energy homeostasis. The aim of this research was to investigate the role of centrally applied ghrelin on the pituitary morphofunctional features and corticosterone secretion in normal-fed, food-restricted and obese 8 weeks old Wistar male ...

Diabetic mastopathy or sclerosing lymphocitic lobulitis of the breast in the patients with diabetes mellitus is a rare, benign disease that simulates breast malignancy.Among 489 women with firm breast lump(s), three women aged 32, 38 and 47 years with long standing diabetes mellitus type 1 were identified. Mammography and breast ultrasound were performed in all patients and contrast enhanced breast MRI in one patient with bilateral lumps. The histologica...

The inflammatory response in rat models of obesity and malnutrition was examined. Rats received standard chow (control), chow enriched with 30% lard (obese) or 70, 50, 40 and 40% of expected food intake weekly for 4 weeks (starved). The serum levels of cytokines were determined by ELISA, while the expression of cytokine mRNA in heart and liver was analyzed by real-time RT-PCR. The blood concentrations of pro-inflammatory cytokines (TNF, IL-1) and Th1 cytokine IFN-gamma were si...

The aim of the study was to investigate the influence of intracerebroventricular (ICV) injections of ghrelin on secretion of pro-inflammatory (TNF, IL-1, IFN-γ) and anti-inflammatory cytokines (TGF-β) in starved rats. Male Wistar rats (4 weeks old, 12 per group) were fed ad libitum or starved by caloric restriction (40% of chow consumed by their ad libitum fed controls from previous day) for 4 weeks. Afterwards, half of the animals in each group receive...

Ghrelin is a growth hormone secretagogue that plays an important role in appetite and weight regulation. We have previously demonstrated that central ghrelin stimulated pituitary ACTH synthesis and secretion. In this study we further examined the effects of intracerebroventricular (ICV) ad-mi-nistration of ghrelin on zona glomerulosa (ZG), zona fasciculata (ZF) and zona reticularis (ZR) of the adrenal cortex, as well as the blood concentrations of aldosterone, corticosterone a...

Aim/hypothesis: Chronic renal failure maintenance hemodialysis (HD) patients are at risk for low bone mineral density (BMD) and fractures. Parathyroid hormone (iPTH) plays a pivotal role in the pathophysiology of uremic bone disease, but in healthy population body weight and particularly body composition are more important determinants of bone mass.Patients and methods: We studied BMD (results were recorded as g/cm2) and T score using D...

Background and aims: The aim was to analyze insulin resistance (IR), glycoregulation disorders, lipid status, C-reactive protein (CRP), plasminogen activator inhibitor (PAI-1) and antioxidant defense in children and adolescents with pre-metabolic (Pre-MS) and metabolic (MS) syndromes.Material and methods: The study included 30 obese individuals (age 10–20 years, body mass index (BMI) or waist circumference (WC) ≥90 percentile). Three of the fo...

Background/Aims: High level of inflammatory cytokines was present within malnourished and chronic renal failure maintenance hemodialysis (MHD) patients, but there were conflicting data about the role of inflammation on development of insulin resistance (IR) in non-obese and overweight MHD patients.Methods: We selected 23 well-nourished and 20 middle- to moderate-malnourished, sex and age-matched, stable MHD patients, 23 male and 20 female, with median di...

Background: Obesity is followed by insulin resistance (IR) and low grade inflammation. In patients with metabolic syndrome (MS) and clinicaly evident vascular complications homocystein values are higher. Hyperhomocysteinemia correlates with hyperinsulinemia and IR, resulting in oxidative stress, which causes endothelial lesions and dysfunction, promoting atherosclerosis and hypertension.Objectives: To examine homocystein levels in patients with and witho...

: White adipose tissue (WAT) has an important role in the regulation of metabolic homeostasis. It is well known that two distinct WAT depots in mammals, subcutaneous WAT (sWAT) and visceral WAT (vWAT) display different metabolic roles and it could be presumed that exert different response to various hormones. Numerous studies revealed leading role of insulin in both fat accumulation (lipogenesis) and adipocyte differentiation (adipogenesis) although it is not clear is there a ...