Endocrine Abstracts

Familial acromegaly (FA) is a rare disease with less than 150 cases published. For its diagnosis (FA), two or more cases of acromegaly in the same family and the absence of MEN1 and/or Carney syndrome are required. FA is in the familial isolated pituitary adenomas (FIPA) group although its genetic condition is still under investigation.The index case is an asymptomatic 43-year-old woman with a 4mm pituitary micro-adenoma. There were not acromegaly signs/...

Purpose: MicroRNAs (miRNAs) are a fundamental component of gene regulation mechanisms. Presently, altered miRNA patterns of expression have been documented in different human cancers, and they may explain the distinct behavior of pituitary adenomas (PA) and the differences between subtypes. miR-375 can target among other genes to IGF1 receptor (IGF1R) and participes in reprogramming cancer cell metabolism. The aim of this study was to assess the miR-375 role on pathogenesis of...

Purpose: The 2004 edition of the WHO text ‘Histological typing of endocrine tumors’ classified pituitary adenomas (PA) on the basis of their histological and immunohistochemical characteristics. Recent advances on the knowledge of the molecular patterns of these tumours may allow establishing a molecular classification with higher accuracy and specificity than previous one.Methods: Within the pale of the multicenter Spanish Molecular Registry o...

Introduction: Inferior petrosal sinus sampling (IPSS) is considered to be the gold standard for confirming the source of ACTH secretion in patients with Cushing’s syndrome (CS). Prolactin measurement during IPSS can improve diagnostic accuracy and reduces false negative responses.Patients and methods: 56 patients with ACTH-dependent CS were included (45 F/11 M, mean age 43.6±10.8 years and 90.1% Cushing’s disease) diagnosed since 2000. IPS...

Purpose: IGF receptor 1 (IGF1R) and epidermal growth factor receptor (EGFR) are receptors tyrosine-kinase (RTK) whose altered signaling are critical factors in development of many types of tumours. These RTK are some of the main targets of the microRNA miR-7. This important tumor supressor miRNA has the ability to inhibit the motility, invasiveness and anchorage-independent growth, suggesting a strong therapeutic potential in many types of cancer. Pituitary adenomas (PA) are a...

Introduction: It has been described that early post-operative cortisol value <2 μg/dl might predict long-term remission while ACTH value has been less described.Objective: To study early post-operative ACTH and cortisol levels in Cushing’s disease patients as predictor factor of long-term remission.Patients: 61 consecutive patients (12 men/49 women), mean age 42.6 years (17–86 years) undergoing transphenoidal hyp...