Endocrine Abstracts

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...

Introduction: Obesity does constitute one of the most common modifiable risk factors for cancer. The process of cancerogenesis is associated with the enhanced oxidative stress. Lipid peroxidation (LPO), resulting from oxidative damage to membrane lipids, as well as oxidative damage to DNA, are the most frequently examined processes to evaluate oxidative damage to macromolecules.Aim: The aim of the study was to evaluate the level of oxidative damage to me...

Measuring of goiter by ultrasonography is one of the generally accepted methods for iodine nutrition assessment. Discordance between previously used and lately proposed thyroid volume (TV) reference values (TVRV) is the subject of discussion and makes it difficult to properly interpret the effects of iodine prophylaxis.Aim: To establish TVRV for Polish schoolchildren population.Material and methods: 2903 schoolchildren aged 6–...

Oxidative stress plays an important role in hyperthyroidism-induced tissue damage. We aimed to determine whether radioiodine therapy has benefit effect on the oxidant and antioxidant status in patients with Graves’ Disease.Material and methods: We studied 30 patients with Graves’ disease, aged 18–48 years. 12 normal adult volunteers were studied as control group. All the patients were treated unsuccessfully by antithyroid drugs. The effect...

Historically, the 131I whole body scan played a central role in the assessment of disease status in patients with differentiated thyroid cancer.In 2006, the European Thyroid Cancer Taskforce published a new Consensus Statement. It favoured the use of stimulated serum thyroglobulin measurement and neck ultrasound for follow up of disease activity. The use of diagnostic 131I whole body scan was no longer recommended as a routine test....

Before the introduction of mandatory salt iodination in 1997 the North-Eastern Region of Poland was known to be a moderate iodine deficiency area. It was also exposed to ionizing radiation after the Chernobyl accident in 1986. The aim of the present study was to evaluate the descriptive epidemiological features of incident thyroid cancers diagnosed among the residents of this area between 1996 and 2007. The Regional Cancer Surveillance Program was used to collect data on 834 n...

Bivalent iron (Fe2+), which initiates the Fenton reaction (Fe2++H2O2+H+→Fe3++•OH+H2O), is frequently used to experimentally induce oxidative damage to macromolecules. Growth hormone (GH) and the main mediator of its action – insulin-like growth factor-I (IGF-I) – are involved in oxidative processes, lipid peroxidation (LPO) included.The aim of the...

Iron participates in the Fenton reaction (Fe2++H2O2+H+→Fe3++•OH+H2O), the most basic reaction of oxidative stress. This transition metal is required to keep oxidative balance, although iron overload is associated with enhanced oxidative damage and cancer initiation. Growth hormone (GH) and insulin-like growth factor-I (IGF-I) are also involved in oxidative processes, lipid peroxidation incl...

Introduction: Pituitary gland, sella turcica and parasellar region can be involved by wide variety of lesions. Diagnosis of this pathology demands a multidisciplinary effort, especially endocrinological, ophthalmologic and neurological procedures. Each of these entities has unique diagnostic and treatment considerations.Aim: Review of clinical symptoms related to sellar–parasellar region tumors and documentation of heterogeneity of clinical syndrome...

Introduction: Subclinical hyperthyreosis (SH) affects about 1.5% population at least. The diagnosis of this disease leans on the laboratory criteria only: decreased of TSH and normal FT3 and FT4 levels. SH increases mortality and there is no unequivocal procedure algorithm to manage patients with this desease.Aim: To estimate an influence of cure of SH on heart rate and on autonomous nervous sytem and to find the relationships between parameters of Holte...