Endocrine Abstracts

Introduction: Urinary free cortisol (UFC) determination has suboptimal sensitivity (SE) and specificity (SP) especially in mild Cushing’s syndrome (CS).Aim: To determine the performance of UFC and its metabolite cortisone (UFE) measured using accurate assays such as HPLC and LC–MS/MS in diagnosing patients with CS.Patients and methods: Sixty-seven patients with CS were compared to 49 sex- and age-matched non-CS. UFF and U...

Introduction: The diagnosis of Cushing’s syndrome (CS) might be challenging especially in ACTH-dependent CS when it comes to detect the origin of ACTH secretion.Materials and methods: We retrospectively recorded data about 170 patients with ACTH-dependent CS (149 CD, 21 EAS) referring to two Endocrinology Units. We focused especially on the performance of 3 dynamic tests: the dexamethasone 8 mg overnight challenging (HDDST), the CRH and the desmopre...

Introduction: Pasireotide is a multireceptor-targeted somatostatin analogue effective in the treatment of patients with Cushing’s disease (CD) but associated with an increased risk of hyperglycaemia. We prospectively investigate the role of an acute pasireotide suppression test (PST) in predicting long-term response in CD.Methods: Eleven patients with CD (seven females, four males; mean age 45±17.3 years) received at 0900 h a single s.c. inject...

Context: Late-night salivary cortisol (LNSC) measurement has been promoted as an ideal screening test for the diagnosis of Cushing’s syndrome (CS). However, its performance using commercially available assays has not been widely evaluated and limited data are available on its use in population with chronic medical conditions.Aim: To compare the diagnostic performance of LNSC (routine use) in patients with CS and in a patients’s group with diffe...

Introduction: Pasireotide is a promising treatment option for patients with Cushing’s disease (CD). The measurement of salivary cortisol is useful for diagnosing hypercortisolism and monitoring patients with CD following pituitary surgery. It may also be a better index of cortisol secretion than serum cortisol or urinary free cortisol (UFC). We investigated the value of salivary cortisol in monitoring short-term efficacy of pasireotide in patients with CD.<p class="ab...

The management of Cushing’s disease (CD) can be problematic, particularly when the disease persists following pituitary surgery. Here we report the case of a 55-year old woman with CD that persisted after repeat transsphenoidal surgery. The patient had an overt phenotype with facial rubeosis, central obesity with supraclavicular fat accumulation, cervical fat pad and proximal muscle weakness. She had received anti-hypertensive drugs and insulin for diabetes mellitus. Horm...

Objective: The corticotropin releasing hormone (CRH) test does not reliably distinguish between Cushing’s disease (CD) and normality or pseudo-Cushing state (PC). In this study we assessed whether the application of novel criteria could enhance its diagnostic performance.Design: Retrospective study.Patients: Fifty-one subjects with CD, 26 with PC and 31 control subjects (CT).Measurements: All subjects un...

Background: The development of a vascular supply is a critical factor in the growth and metastatic spread of malignant tumors. The recognition of the vascular endothelial growth factor (VEGF) pathway as a key regulator of angiogenesis has led to a considerable efforts to exploit its potential for therapy in oncology. Endocrine gland-derived (EG-VEGF) has been recently identified as an endothelial cell mitogen, predominantly expressed in steroidogenic tissues; it represents a n...

Glucocorticoid receptor (GR) gene polymorphisms have been associated with interindividual variations in glucocorticoid sensitivity in healthy individuals.Aim: Aim of this study was to investigate whether there was an association with sensitivity to glucocorticoids and bone mineral density in HPA axis disorders.Methods: We analyzed 3 polymorphisms of the GR gene (Bcl1, N363S, ER22/23EK) in 185 subjects: 52 patients with Cushing&#146...

Cushing’s disease (CD) occur more frequently in females than in males, but in men this disease seems appear at a younger age and with more severe symptoms and clinical course. Aim of this study was to compare clinical features and biochemical indices of hypercortisolism in male and female patients with CD.Methods: Forty-five patients (35 females and 10 males) with confirmed CD were analyzed. All patients underwent a complete biochemical and endocrin...