Endocrine Abstracts

Introduction: MicroRNAs (miRNAs) are short non-coding RNAs that regulate translation or degradation of target mRNAs. Therefore, miRNAs control gene expression in many biological processes, including proliferation, apoptosis, and differentiation. Deregulation of miRNAs expression is an important contributor to tumour development and progression. Even though several genetic and epigenetic lesions have been identified in human thyroid cancer, particularly in the papillary histoty...

Introduction: Plasma glucose concentration at 1h(1hPG) during an oral glucose tolerance test(OGTT) may be a better predictor of future diabetes mellitus(DM) than 2-h post load glucose concentration(2hPG). HIV-infected individuals may have differential risk of DM compared to the general population, and the optimal diagnosis algorithm for DM in HIV-infected persons remain unclear. We evaluated the agreement of the methods 1 hPG vs 2 hPG) for the diagnosis of pre-D...

Hyponatremia is a common disorder, especially among the elderly, and an important morbidity and mortality cause. Empty sella syndrome, on the other hand, is a rare entity, more common in women between their fourth and sixth decade of life, and endocrine dysfunction has been reported in 10–60% of the cases. A 68-year-old man, with a past medical history of essential hypertension and glaucoma, presented at the emergency room due to malaise, asthenia, somnolence and anorexi...

Introduction: Primary hyperparathyroidism (PHPT) is a common endocrine disorder characterized by hypercalcemia due to an unregulated overproduction of parathyroid hormone (PTH). PHPT is most commonly caused by a single adenoma of the parathyroid gland, usually located just behind the thyroid gland. However, in rare cases, they can have an ectopic location, including intrathyroid adenomas. In some cases, the measurement of intact PTH in the wash out fluid obtained by US-Fine Ne...

Introduction: Medullary thyroid carcinoma (MTC) and papillary thyroid carcinoma (PTC) are two distinct neoplasms originating from follicular and parafolicular-C cells, respectively. These pathologies have always been considered different from each other in terms of their incidence, their cell origin and their histopathological features. Concurrent occurrence of MTC and PTC in the same patient is an unusual event and its occurrence as true mixed medullary-follicular-derived car...

The parallel increase in the amount of environmental contaminants and in the prevalence of some human diseases has led to a growing interest in understanding how these compounds, so-called endocrine disruptors, may affect human health. In this scenario, the concept that obesity is the result of the interplay of genetic and lifestyle factors has been changing due to the growing evidence that environmental contaminants might alter endocrine function.Organo...

Introduction: Premature pubarche (PP) is most often related to idiopathic premature adrenarche (IPA). However, it is a diagnosis of exclusion and differential diagnosis must include milder and nonclassic variants of congenital adrenal hyperplasia (CAH).Purpose: To identify clinical predictors of CAH and IPA in children with PP.Materials and methods: A retrospective study was conducted including children seen for PP between 2001 and...

Introduction: About 50% of patients with medullary thyroid carcinoma (MTC) have persistent or recurrent disease after surgery.For a calcitonin (ct) value greater than 150 pg/ml, it is suggested by international guidelines performing additional imaging exams (AIE) for evaluating the presence of distant metastasis. It is often difficult to assess the presence of nodal disease and secondary liver lesions (often miliary) by ‘morphological’ imaging ...

Topiramate (TPM) is an anticonvulsant drug used for the treatment of epilepsy and prophylaxis of migraine. Weight loss is a side effect frequently reported in patients and animal models treated with TPM. Some studies showed that TPM may decrease energy storage, and thus increase energy expenditure and thermogenesis. However, the mechanisms by which TPM reduces body weight are not completely understood. Anorexigenic hormones such as insulin and leptin regulate the activity of d...

Background: Pituitary apoplexy occurs when a tumor undergoes acute hemorrhage, infarct, or both. This often leads to acute severe symptoms (clinical) but can also occur without them and diagnosed on CT/MRI, surgery, pathology (subclinical). To investigate clinical and subclinical apoplexy in nonfunctioning tumors (n=221) from our database.Design: Retrospective review of clinical presentation, tumor characteristics and outcome of 24 patients, 11 fe...