Endocrine Abstracts

Differentiated thyroid carcinoma is the most common endocrine malignant tumor. Papillary carcinoma frequency in our country is 80% of thyroid neoplasia. Papillary thyroid carcinoma usually metastasizes to cervical lymph. Metastases to distant organs are rare and most often affect the lungs, liver and bones. Despite of its anatomical proximity, metastasis parotid have not been described in the existing papillary carcinomas literature. We report a case of parotid gland metastasi...

Rationale: Patients with morbid obesity may have vitamin D deficiency and bariatric surgery may exacerbate it due to factors such as lack of dietary compliance, reduced intake, malabsorption, etc.Objective: To study vitamin D deficiency prevalence in patients with morbid obesity before and after bariatric surgery and its relationship with other laboratory parameters.Methods: A retrospective study of 88 morbidly obese patients befor...

Objectives: To study blood pressure circadian pattern in patients with impaired fasting glucose (IFG) evaluated with ambulatory blood pressure monitoring (ABPM).Methods: Cross-sectional study evaluating patients taken from the Spanish ABPM Registry. Normoglycemia was defined as glucose <100 mg/dl and IFG as glucose 100–125 mg/dl. All patients underwent 24-h ABPM with a Spacelabs ambulatory blood pressure system. ABPM was performed according to s...

Chimeric somatostatin (SST)/dopamine (DA) compounds, termed dopastatins, such as BIM-23A760, an agonist for SST (sst2 and ss5) and DA (D2) receptors, are emerging as promising new approaches to treat pituitary adenomas. However, their actions and mechanisms on the different types of pituitary tumours are still incompletely understood. Thus, the aim of this study was to analyse a set of key functional parameters (signaling pathways, hormonal expression and secretion, cell viabi...

Somatostatin analogs (SSA) are a first-line treatment for pituitary adenomas (PA). Indeed, multi-receptor targeting SSA such as octreotide and pasireotide are being successfully used to control hormone secretion and/or tumor growth. Unfortunately, many PA escape from SSA-therapy, which could be related to somatostatin receptor (sst) presence, abundance, availability and/or signaling. In order to better define the molecular/cellular features associated to octreotide and pasireo...

Background: Cushing’s disease is the result of prolonged and excessive exposure to cortisol caused by a pituitary tumor. Treatment with somatostatin analogs (SSA), which can reduce hormone secretion and tumor growth in other pituitary tumors (e.g., somatotropinomas), is usually ineffective in corticotropinomas. Previous studies indicated that presence of the truncated SST5TMD4 receptor variant is associated with a lack of response to SSA in acromegaly; but, its presence a...