Endocrine Abstracts

Introduction: A significant body of literature supports that 25(OH)vitD deficiency is associated with insulin resistance. We studied the prevalence of 25(OH)vitD deficiency across the spectrum of glucose metabolism.Design: The study participants (441 total, 362 females (82.1%) and 79 males (17.9%)) had a mean age (±S.D.) of 64.59 (±9.44) years, range: 32–92 years. The study population was divided into two groups: Individuals...

Introduction: Virilizing tumors are rare, but frequent cause of virilization in postmenopausal women.Case report: A 62-year-old postmenopausal woman presented with a rapid onset of hirsutism with increased terminal hair growth, particular on chin and abdomen, frontal male pattern balding in the last 5 months. Physical examination revealed a low-pitched, deepened voice and clitoromegaly. The Ferriman–Gallwey score was 18. Laboratory evaluation: Testo...

Introduction: Bisphenol A (BPA) is a chemical compound found in a variety of everyday products. Exposure to BPA impacts negatively ovarian response, number of fertilized oocytes and implantation in women undergoing in vitro fertilization (IVF). The aim of the study was to determine BPA levels in women with polycystic ovary syndrome (PCOS) in comparison to women with tubal factor (TF) infertility who underwent IVF as well as to investigate their effect in critical endp...

Introduction: Commonly used pre-operative methods (ultrasonography and sestamibi scan) to localize the culprit parathyroid gland(s) in patients with primary hyperparathyroidism (PHPT), frequently yield false positive or false negative results. Parathyroid hormone (PTH) washout after fine-needle aspiration (FNA) may allow for a targeted surgical approach. The aim of this study was to test the diagnostic value of preoperative PTH washout after FNA in PHPT patients.<p class="...

Introduction: Vitamin D deficiency has been reported to be widely found within the population. Vitamin D deficiency was also found to be prevalent in patients with autoimmune inflammatory diseases such as rheumatoid arthritis and systemic lupus erythematosus. Vitamin D deficiency was reported in almost all patients with acute myocardial infarction in a US multicenter study. Low concentrations of 25-hydroxyvitamin D (25(OH)D) are reported to be an independent risk factor for ca...

Introduction: Primary hyperparathyroidism is currently a frequent disorder. In the past primary hyperparathyroidism was diagnosed late in the course of the disease. With the introduction of routine calcium measurements, as well as the awareness of the disease amongst clinicians, the disorder is frequently recognized in asymptomatic patients. Thus, the clinical profile of primary hyperparathyroidism is changing.Aim: The aim was to describe the clinical pr...

Background: Gastrin is an early incretin candidate, since it is released by oral glucose and potentiates the glucose-induced insulin secretion. It has been shown that only in hypoglycaemic or hyperglycaemic conditions gastrin release is influenced by changes in blood glucose and insulin concentrations.Aim: To evaluate whether there is a relation between fasting serum glucose and serum gastrin concentrations.Methods: Gastrin and glu...

Introduction: Parathyroid adenoma is the most common cause of primary hyperparathyroidism (PHPT) resulting in hypercalcemia and hypercalciuria due to autonomous secretion of PTH. Ectopic parathyroid adenoma, as a consequence of variability in the glandular tissue migration during the embryologic life or a supernumary fifth parathyroid gland, has an incidence of 25% among patients with PHPT. The incidence of deeply mediastinal ectopic parathyroid adenoma is 1–3%.<p cla...

Aim: Recent reports of adverse skin reactions in patients receiving dipeptidyl peptidase-4 (DPP-4) inhibitors have increased awareness towards skin-targeting side effects. Bullous pemphigoid (BP) is an autoimmune blistering dermatosis with significant morbidity and mortality. We report the development of BP in patients with type 2 diabetes mellitus (T2DM) treated with DPP-4 inhibitors.Method: Evaluation of the temporal distribution of the frequency of BP...

Background: Although sunitinib, an oral multitargeted tyrosine kinase inhibitor of RET, VEGFR, PDGFR, c-KIT used for cancer treatment, has a reported prevalence of hypocalcemia of 35%, this has not been documented in pancreatic neuroendocrine tumour (pNETs).Methods: We present three, out of 12, patients with pNETs treated with sunitinib who developed grade 1, 2 and 4 hypocalcemia according Common Terminology Criteria for Adverse Events v3.0 (CTCAE) crite...