Endocrine Abstracts

Introduction: Cushing’s disease (CD) is rare in children. It’s most common clinical manifestations are growth retardation, changes in pubertal development and weight gain. The diagnosis, based on clinical suspicion, is often hampered by the non identification of the microadenoma in MRI.Clinical history: A 14-year-old male patient, with short stature, growth arrest after 12 years and weight gain since age of 9. At physical examination, he had mo...

Introduction: Nrf2 (Nfe2l2) is a transcription factor that regulates a series of cytoprotective and antioxidant enzymes. Upon exposure to oxidative or electrophilic stress, Nrf2 enters the nucleus and induces its target genes expression. Follicular thyroid cells have physiologically high levels of reactive oxygen species as oxidation of iodine is essential for iodination of thyroglobulin and thyroid hormones synthesis. We have shown previously that Nrf2 pathway is active in th...

Introduction: Full blood count (FBC), C-reactive protein (CRP), albumin and serum inflammation-based scores reflect systemic inflammation and predict outcomes in oncological patients. While these are increasingly used in cancer, little is known in pituitary adenomas (PAs). We aimed to characterise FBC and inflammation-based scores in patients with PAs and investigate the usefulness of such parameters in predicting aggressive/refractory disease.Methods: W...

Oxidative stress is regarded as a pathogenic factor in hyperthyroidism. IL6 has been described as acting as a protective intrahepatocellular against oxidative stress and mitochondrial dysfunction. On the opposite way leptin has been shown to increase oxidative stress. The impact of thyroid hormones on circulating cytokines levels has been demonstrated with conflicting results both in human and rats. Most of the studies concerned hyperthyroidism showed increased levels of IL6 c...

Introduction: 131I therapy in patients with papillary thyroid carcinomas (PTC) ≤2 cm and without extrathyroidal extension (T1) depends on multifactorial analysis: age, multifocality, histological criteria, lymph node or systemic metastasis. The study purposes were analyze PTC-T1 and compare the groups treated only with surgery vs combined therapy (surgery and 131I).Methods: Retrospective analysis of clinical files of PTC-T1 pa...

Objective: The aim of this study was to investigate whether SUR2A (sulfonylurea receptor type 2A, ABCC9) MEF2a (myocyte enhancer factor-2a) and HIF1a (Hypoxia-inducible factor-1) can influence glucose uptake in oxidative muscle soleus by regulating GLUT4 expression.Methods: Insulin resistance was induced in male Wistar rats by inducing obesity with monosodium glutamate (MSG). At the age 3 months, half control and MSG-treated animals started receiving 0.1...

Introduction: GLUT4 protein is the most important isoform of glucose transporters in skeletal muscle. Reduction in its content and/or translocation is related to insulin resistance and type 2 diabetes mellitus. In skeletal muscle cells there is also an ATP-sensitive potassium (KATP) channel with two subunits, sulfonylurea receptor type 2A, ABCC9 (SUR2A) and KIR6.2 (KCNJ11). In pancreatic B cells, this channel triggers insulin secretion in response to the rise in glucose levels...

Giant prolactinomas are uncommon, with some individual case reports described in the literature, but with few series documenting treatment outcomes. They represent a therapeutic challenge, since restoring normoprolactinemia, eugonadism and reducing tumour size may not be realistic goals. Specific complications may also arise during treatment that change the initial management plans. The authors describe a case of a 28-year-old male with visual impairment and behavioural change...

Introduction: Prolactinomas are the most common pituitary adenomas in paediatric patients, except in the first decade of life, when ACTH secreting adenomas are more frequent.Objective: Analysis of clinical, diagnostic and therapeutic data of prolactinomas in paediatric age.Methods: Retrospective study of 15 patients whose symptoms began before 18 years of age.Results: In girls, secondary amenorrhea (58.3%) an...

Introduction: Just-glomerular tumours (reninomas) are rare causes of secondary hypertension (HT). They typically present with difficult to manage-HT, hypokalemia, hyperreninemia and secondary hyperaldosteronism. They are usually small lesions (<1 cm) and are more common in adolescents or young adults. Despite being rare, they should be considered in the diagnostic approach of secondary HT, as it they are a potentially curable cause.Case report: Femal...