Endocrine Abstracts

Background: A number of studies have evaluated the association between prolactin (PRL) and breast cancer risk, but some results have been inconsistent.The aim of this study was to investigate, if the circadian rhythm of PRL was maintained in pre- and post-menopausal patients with breast cancer and if there is a correlation between serum PRL level, serum concentration of insulin-like growth factor 1 (IGF1), tumor staging and expression of estrogen, proges...

Pituitary resistance to thyroid hormone is a very rare cause of hyperthyroidism. It is characterized by normal, or elevated TSH concentration with high concentration of thyroxine and triiodothyronine.Here, we present a case of a 24-year-old woman who suffered from mild thyrotoxicosis and diffuse goiter for ten years. For several years she was under treatment with methimazole, but without any significant improvement, apart from the enlargement of the thyr...

Pancreatic neuroendocrine tumors constitute a disease with steadily increasing prevalence worldwide in part owing to the increased detection of early stage disease. Here we present the case of a 49 year old male patient, who was admitted with clinical, laboratory and CT features of acute pancreatitis. A clear cause for the pancreatitis could not be detected. Excessive alcohol intake was reliably denied, and the patient did not take any drugs. Gallbladder and bile ducts were in...

Fluid and electrolyte disturbances are a challenging problem of inpatients, especially in those subpopulations, in whom the electrolyte imbalance is involved in the pathogenesis of the primary disease. Here we present the case of a 58 year old woman, with ongoing alcohol abuse on a daily basis, who was admitted with progressive fatigue and dysphagia. At the admission BMI was 17.8 kg/m2, and the patient presented deficiency of vitamins A, B, and D. The diagnostic pro...

Background: Increased adiposity and insulin resistance are conditions frequently observed nowadays. Many hormones are involved in the pathogenesis of the condition but therapeutic options we can offer to the patients are still scant. Each newly discovered peptide give us hope. Adropin (Ad) is a newly discovered metabolic hormone involved in energy homeostasis. This homeostasis is frequently disturbed in patient with Turner Syndrome (TS). Patient with Turner syndrome are unique...

Introduction: TSH seems to play direct role in bone metabolism. TSH receptors are expressed on osteoblasts and osteoclast precursors. Osteocalcin (OC) is well known marker of bone formation, whereas collagen type I crosslinked C-telopeptide I (CTX) is marker of bone resorption. Sclerostin is a protein, recently found to inhibit bone formation, while parathormone (PTH) inhibits sclerostin production. The aim of the study was to estimate sclerostin, OC, CTX and PTH levels after ...

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"...

Mutations in the RET protooncogene cause familial cases of medullary thyroid cancer, which in some cases coexists with pheochromocytoma and primary hyperparathyreoidism as the MEN2A syndrome.Aim of the study: Evaluation of frequency of pheochromocytomas and their clinical course in the RET protooncogene mutations carriers.Material: One hundred and seventy nine patients, among them 109 probands and 70 family members in...

Objective: Aiming at the highest specifity in differentiating benign from malignant thyroid nodules effects in new diagnostics developments. Recent technologies such as elastography enable determination of tissue stiffness difference between focal lesions and surrounding thyroid tissue – reference tissue. This method is based on quantifying the stiffness of the lesion – the malignant changes show decreased elasticity when compared to adjacent tissue. Tissue Doppler u...

Type 1 iodothyronine deiodinase (D1) is responsible for the conversion of thyroxin (T4) into tri-iodothyronine (T3). The enzyme is mainly present in thyroid, liver and kidneys.There is strong evidence that the metabolism of thyroid hormones is disturbed in some neoplasmatic tissues. However there are only few available data about D1 enzymatic activity in liver tumors.The aim of this study was to estimate the e...