Endocrine Abstracts

Neuroendocrine tumors encompass a heterogeneous group of tumors arising from the diffuse neuroendocrine system. The incidence of NETs rises with age, with the peak after 65 years. However, all NETs observed in adults may be diagnosed in children too. There are a very few studies addressing NETs in young patients. This study summarizes clinical, histopatological and genetic characteristics of young patients with NETs. This is a retrospective study describing clinical, histopath...

Introduction: Although intensive, repeated and perennial, physical stress of training generally does not represent a health hazard to professional athletes. Adaptation to such stress is presumed on multiple levels, but still not fully defined. Our aim was to analyze specificities of hypothalamic-pituitary-adrenal (HPA) axis response and adaptation to physical stress in professional athletes.Subjects and methods: We exposed 55 professional male athletes t...

Introduction and aims: Autoimmune thyroiditis represent a state predisposed for the development of hypothyroidism. It is known that subclinical and overt hypothyroidism are important risk factors associated with the development and progression of heart failure. These effects are due to the changes in the structure and function of the cardiac muscle, as well as the overall cardiac mechanics. The aim of our study was to examine the influence of autoimmune thyroiditis (Hashimoto ...

Introduction: Selenium (Se) is a trace element that plays key roles in thyroid pathology. In patients with Hashimoto thyroiditis (HT), Se supplementation might reduce antibody levels and may provide additional beneficial effects, such as on cognition.Aim: To evaluate cognitive function (cognitive decline) in patients on long-term levothyroxine replacement for primary hypothyroidism with and without selenium supplementation.Design: ...

To investigate the prevalence of SH and osteoporosis in female patients with unilateral AIs (UAIs) and bilateral AIs (BAIs).We enrolled 106 female patients, 68 (64.2%) with UAIs and 47 (35.8%) with BAIs. SH was diagnosed in the presence of serum cortisol levels after 2-day low-dose dexamethasone suppression test (LDDST) >50 nmol/l with at least one of the following parameter (midnight serum cortisol >208 nmol/L, 24-h urinary free cortisol >24...

Paragangliomas (PGLs) and pheochromocytomas (PCCs) are rare neuroendocrine tumors that derived from pluripotent neural crest stem cells. PCCs are derived from the adrenal medulla, while PGLs are histologically identical tumors derived from ganglia outside the adrenal gland. Even though the majority of tumors are benign, they are associated with high morbidity rates caused by excessive catecholamine secretion. We retrospectively analyzed 71 patients (36 female and 35 males) wit...

PNETs represent the leading cause of mortality in MEN1 patients. Yet, their characteristics, behaviour, and therefore management, are still uncertain.The aim of this study was to describe the main clinical characteristics of NETs in MEN1, and to compare them with sporadic NETs.We investigated 164 patients with PNETs retrospectively, treated in one centre from 2004–2016. We identified 15 (9.1%) patients with MEN1. All patients ...

Introduction: Calcitonin secreting neuroendocrine tumors (NET) are rare and not well recognized. Due to many similarities, it is sometimes difficult to differentiate them from medullary thyroid carcinoma (MTC), which can hamper choice of proper therapy. We investigated our group of patients with this type of NET in terms of diagnosis and biology.Patients and Methods: We analyzed 38 patients with calcitonin secreting NET (5% of all our patients with NET)....

Introduction: It has been shown that subjects with normal fasting glucose (NFG) and normal glucose tolerance (NGT), whose plasma glucose concentration does not return to their fasting plasma glucose (FPG) level within 2 h following standard oral glucose tolerance test (OGTT), have higher risk of progression into type 2 diabetes (T2D) than NFG/NGT subjects whose glucose returns to FPG level after OGTT. Although the development of T2D during the life of woman with polycystic ova...

Introduction: Polycystic ovary syndrome (PCOS) phenotypes A and B are considered to be more hyperandrogenic in comparison to phenotypes C and D that are considered to be mostly reproductive. The aim of this study was to analyze distribution of androgens in different phenotypes in our PCOS population.Methods: We evaluated 365 PCOS women (PCOS:25.05±6.24 kg/m2; 25.48±5.21 years) diagnosed using ESHRE/ASRM criteria and 125 healthy women...