Endocrine Abstracts

Introduction: Primary adrenocortical carcinoma (ACC) is a highly malignant but rare neoplasm. It can occur as a hormonally active or an inactive tumor. It is considered that about three-fourths of ACC cases are hormonally active, although they do not always give clinical symptoms. Mitotane (Lysodren) is registered by the FDA for the therapy of ACC, either for monotherapy or as a combined chemotherapy.Case report: A 34-year-old woman, with a histopatholog...

Herniation of the subarachnoid space into the sella turcica results in empty or partially empty sella syndrome. Primary sella turcica syndrome is idiopathic, whereas secondary empty sella is a result of central nervous system pathologies, which may manifest as visual disorders, due to optic chiasm compression or displacement. The purpose of this study was to determine whether empty and partially empty sella—either primary or secondary—are risk factors for optic chias...

With the wide-spread use of abiraterone/enzalutamide for CRPC, there is an urgent need to understand and reverse resistance to these treatments. Studies have implicated glucocorticoid receptor (GR) as activating androgen receptor (AR) signalling and driving resistance. Here we studied progesterone receptor (PR), which is phylogenetically most closely related to the AR. We first used digital droplet PCR in prostate cancer (PCa) cell lines and observed >10 times higher level...

Congenital adrenal hyperplasia (CAH) is an autosomal recessive condition which leads to glucocorticoid deficiency. During childhood, aims of treatment are to prevent adrenal crisis and to achieve optimal adult height and normal puberty. In adults, aims of treatment are to prevent adrenal crisis, ensure normal fertility and avoid long-term consequences of glucocorticoid use. Current regimens with glucocorticoids cannot optimally replicate the normal physiological cortisol level...

Introduction: The importance of telomerase reverse transcriptase promoter (TERTp) mutations in DTC is widely discussed. It has been demonstrated that the presence of TERTp mutations is associated with higher cancer aggressiveness, reflected by lymph node metastases, distant metastases, advanced tumor stage, recurrence, and even disease-specific mortality. Nevertheless, there is no clear evidence-based data demonstrating how to manage these patients. Therefore...

The purpose of the work: to compare the changes in the global longitudinal strain of the left ventricle in obese patients with and without COPD.Material and methods of research: group I consisted of obese patients without COPD (n=50; 21 - males, mean age - 48.8±9.1 years). Group II – 40 patients with obesity and COPD, comparable in age, gender. Group III – 37 patients with COPD without obesity, comparable in age, gender and risk g...

Background: The hypothalamic neuropeptides kisspeptin and neurokinin B (NKB) are both obligate for normal gonadotrophin secretion. Studies in patients with loss-of-function mutations in NKB signalling suggest that kisspeptin is functionally upstream of NKB, but this hierarchy is unexplored in healthy men and women. We hypothesised that kisspeptin augmentation of estrogen-induced mid-cycle LH secretion will not be abrogated by pharmacological blockade of NKB.<p class="abste...

Introduction: Lymphocytic hypophysitis (LH) is a rare condition that has been increasingly recognised. We studied the natural history and current management of patients with lymphocytic hypophysitis.Methods: We performed a multi-centre retrospective review of all patients that either had histologically proven disease or a strong clinical suspicion for its presence, diagnosed from 2000 onwards. Cases of secondary hypophysitis or granulomatous or xanthomat...

Free radicals and reactive oxygen species (ROS) participate in physiological and pathological processes in the thyroid gland. Oxidative stress caused by ROS is involved in many types of DNA damage that are associated with the initiation or the progression of numerous human cancers including thyroid tumors. One of the most mutagenic products of oxygen radical forming agents is 7,8-dihydro-8-oxoguanine (8-oxoG). The aim of the current study was to investigate expression of OGG1 ...

Introduction: Adrenal cortical carcinoma (ACC) is a rare malignant neoplasm of epithelial origin, derived from the adrenal cortex, with a high tendency to local invasion and distant metastases.Aim: The aim was to assess the effect of serum mitotane concentration during mitotane therapy and identify prognostic factors on the survival of ACC patients.Material and methods: It was a multifactorial analysis of patients from a single end...