Endocrine Abstracts

: Thyroid cancers represent approximately 1% of new cancer diagnoses. Thyroid malignancies are divided into papillary carcinomas (80%), follicular carcinomas (10%), medullary carcinomas (5–10%), anaplastic carcinomas (1–2%) other rare tumours (primary thyroid lymphomas, primary thyroid sarcomas). The main therapeutic options are surgery (mainly total thyreoidectomy), radioiodine treatment (depending on the type and stage of the tumour), levothyroxine therapy (thyroid...

Medullary thyroid carcinoma (MTC) originates from the parafollicular or C cells of the thyroid gland and represents approximately 10% of all thyroid malignancies. The operational classification of FMTC is four or more family members with MTC without objective evidence of pheochromocytoma (PC) and parathyroid hyperplasia. In multiple endocrine neoplasia type 2A (MEN 2A) and familial medullary thyroid cancer (FMTC), the majority of germline mutations are restricted to specific p...

The neuroendocrine tumor of thymus (TNET) is an extremely rare disease. It can occur sporadically or as a part of the multiple endocrine neoplasia (MEN1) syndrome. TNET may secret hormons (ectopic ACTH production). It is a potentially malignant tumor which often develops distant metastases. Its prognostic factors are the tumor size, histological grade, Ki67 index, paraneoplastic symptoms, surgical resection and Masaoka staging. The options for treatment are radical surgery, ch...

Multiple endocrine neoplasia (MEN-1) is a rare congenital disease with genetic background. The MEN-1 gene encodes the menin protein, which acts as a tumour suppressor. Mutation of one allele and the inactivation of the other allele of this gene lead to clonal proliferation and to the development of tumours. The clinical manifestation of MEN-1 is a combination of endocrine (most commonly parathyreoid adenomas, entero-pancreatic endocrine tumours, pituitary tumours) and non-endo...

Keywords: sugar substitute agent exposures, nutritional biology, neuroendocrine system, oxytocinHuman homeostasis is maintained by the complex functioning of the psycho-neuroendocrine-immune system. If a disturbance is generated in this neuroendocrine system for any reason, it can trigger pathogenic processes. One of the factors disturbing homeostasis today may be changes in dietary habits, e.g. through the use of undue sweeteners (e.g. stevia, xylitol e...

The biological organisms are complex systems regulated by the homeostatic back-end network. In these days the growing environmental loads (from industry, household, etc.) contain chemical exposure eg. halogenated hydrocarbons (monuron: MU (C9H11ClN2O), diuron: DU (C9H10Cl2N2O)), which can be endocrine disruptor compounds (EDCs). Synthesis, release of hormones and cell processes of endocrine cells, and...

Introduction: Endocrine disruptor compounds (EDCs) are chemicals that may interfere with the endocrine system and produce adverse developmental, reproductive, neurological and immune effects.These agents can be found in household, in the industry and in our environment.Endocrine disruptors are substances that interfere with the synthesis, secretion, transport, binding, action, or elimination of natural hormones in the body that are responsible for development, behavio...

Endocrine disruptor compounds (EDCs) may cause disorders and alter the normal hormone synthesis and/or release.Aim was to investigate the effects of EDCs on normal hypophysis regulation; particularly the arginine–vasopressine (AVP) activated ACTH release from adenohypophysis cells and the monoamine activated AVP release from neurohypophysis cells.Primary monolayer cell cultures prepared from Wistar rat hypophyses. Separated ad...

Thyroid cancers represent ~1% of new cancer diagnoses. Thyroid malignancies are divided into papillary carcinomas (80%), follicular carcinomas (10%), medullary carcinomas (5–10%), anaplastic carcinomas (1–2%), and other rare tumours (primary thyroid lymphomas and primary thyroid sarcomas). The main therapeutic options are surgery (mainly total thyreoidectomy), radioiodine treatment, levothyroxine therapy (TSH suppression dose), others (external beam irradiation, chem...

Insulin resistance affects 50–70% of women with polycystic ovary syndrome (PCOS).The aim of our study was to estimate the prevalence of insulin resistance by different methods in a single cohort of 63 PCOS patients diagnosed by the Rotterdam criteria.Methods: Anthropometric measurement, examination and fasting blood tests were made on the 3–5th days of their periods. HOMA-IR (cut off >2.5) and QUICKI (cut off <0.3...