Endocrine Abstracts

Oncogenic osteomalacia (tumor induced osteomalacia-TIO) is a rare disease that can lead to severe physical handicap and pains. Its pathogenesis involves the secretion of fibroblast growth factor-23 inducing urinary phosphate loss and consequent hypophosphataemia. We report a case of a TIO caused by a tumor in the nasal cavity. In 2010, a 61-years-old woman was examined because of muscle weakness and arthralgia in the extremities. Her symptomes started ~3 years before her prese...

Women’s bone metabolism is regulated by estrogens and interleukins. During the menopausal period the estrogens’ protective activity is decreased and the production of IL1β and IL6 is increased.The aim of the studyThe assessment of the dependency between IL1β i IL6 and estradiol values and BMD and IBM in postmenopausal women.Material: Forty-eight women, age 49–61, without menstruation ...

Sclerostin, a product of a SOST gene, is a protein expressed by osteocytes that inhibits osteoblastic bone formation. Several hormones including PTH and glucocorticosteroids and have been suggested as possible regulators of sclerostin production. The influence of thyroid hormones on sclerostin synthesis has not been investigated so far. The aim of the study was to evaluate sclerostin concentrations in patients before and after treatment of thyrotoxicosis.<p class="abstext"...

Parathormone (PTH) is the marker for bone remodelling in chronic renal failure. The biologically active PTH 1–84 intact molecule (PTHibio) is supposed to better correlate with the degree of remodelling than PTH-intact (PTHi) which also binds to the 1–34 fragment. Our aim was to examine the PTH levels in dialysed patients with these two methods, considering also the total 25-hydroxi-vitamin-D (t-25OHD) levels.Methods: patients (age 63±15 ye...

Sufficient vitamin D supply is essential for general health. The total 25-hydoxy-vitamin-D (t-25OHD) level refers to the vitamin D supply and can be measured with various methods. Since these methods are not independent of the serum matrix, differences can be obtained among vitamin D levels measured with different methods. Our aim was to study the vitamin D in healthy blood donors, taking also into consideration the use of oral contraceptives (OC).Method...

The majority of circulating total 25-hydroxi-D-vitamin (t-25OHD) is bound to proteins – 90% to vitamin D binding protein (DBP) belonging to the alfa-2-globulin (a-2gl) fraction and 10% to albumin (ALB). Nowadays the t-25OHD level is the most accepted marker of vitamin D supply in physiological states. Our aim was to investigate the t-25OHD concentration in clinical conditions with low albumin levels.Methods: Seventy-three patients (39 men, 34 women;...

Vitamin D deficiency seems to be more prevalent in patients with primary hyperparathyroidism (PHPT) than in general population. This association has many clinical and therapeutic implications.The aim of this study was to assess the vitamin D status of patients with PHPT and to describe the clinical presentation of the disease when vitamin D deficiency is associated.Methods: We studied in a retrospective manner, the case of seven pa...

Statins are cholesterol-lowering drugs decreasing bone resorption by inhibition of the farnesyl diphosphate synthase step in the mevalonic acid pathway and therefore are believed to have beneficial effects on bone status. Objective is to examine the relationship between lipid status and duration of statin therapy on the bone metabolism in dyslipidemic patients. A hundred and sixty subjects were divided into five groups depending on duration of statin therapy: (controls 0 years...

Increased activity of sympathetic nervous system (SNS) was observed in early stage of hypertension onset. The aim of our present study was to estimate catecholamines response to stress stimulus (insulin induced hypoglycaemia) in young males with early diagnosed non-treated hypertension grade 1 (HT) and normotensive controls (NT).Methods: Insulin tolerance test (ITT, 0.1 IU/kg body weight, Actrapid HM, i.v.) was performed in 21 HT male subjects aged 20.0&...

Introduction: Adrenal neurilemoma (or schwannoma) are vary rare tumors. They usually present as incidental finding in asymptomatic patients, which makes them dificult to diagnose preoperatively.Case report: We present a 60 year old woman with incidentally discovered adrenal mass of 5 cm on the right side. The tumor was detected by ultrasound and then it was confirmed by MSCT scan. We performed careful endocrine workup. Results showed normal levels of uri...