Endocrine Abstracts

Pituitary adenomas represent more than 80% of all sella turcica tumors and 10–15% of all intracranial tumors in adults. Topoisomerase II α (TopoIIα) is recognized as a reliable tumor proliferative activity marker. Evaluation of its expression facilitates the identification of more aggressive neoplasms.Aim: To assess the topoIIα expression in pituitary adenomas as the marker of the tumor aggressiveness, recurrence and progression.<...

In many neoplasms, excessive angiogenesis is prognostic factor, independent from proliferation. Previous studies confirmed correlation between cyclooxygenase-2 (COX-2) expression and micro-vascularization density in pituitary tumors. Moreover, nonsteroidal anti-inflammatory drugs have strong inhibiting effect on COX-2 expression and possible anti-tumor activity.Aim: To assess COX-2 expression in pituitary adenomas, its relation to adenoma type as well as...

Introduction: During clinical observation the behaviour of pituitary tumours is frequently unpredictable. The work was aimed at evaluating Ki-67 and topoisomerase II alpha indices as markers of tumour invasiveness and prognostic factors for postoperative course of disease.Material and methods: The Ki-67 and topoisomerase IIα (Topo IIα) indices were determined by immunochemistry in specimens excised from neurosurgically removed pituitary tumours...

Goiter prevalence (GP) and median UIC in population studies are both considered markers of iodine nutrition. Controversy exists which of them is more reliable.Aim: To assess correlation between UIC and thyroid volume in Polish schoolchildren.Material and methods: 9402 Polish schoolchildren (51.3% girls, 48.7% boys) aged 6–12 years were examined in 1999–2011 (‘Thyromobil’ action). 40.9% of children were born at l...