Endocrine Abstracts

Pituitary adenomas (PA), as well as pheochromocytomas and paragangliomas, are neuroendocrine tumors that arise from cells derived from the pituitary, adrenal and extra-adrenal nervous system, respectively. Recent studies have identified a growing series of susceptibility genes for these pathologies. Some genes may be associated with the development of both types of pathologies, as it is the case for succinate dehydrogenase complex genes, while, PAs have not been reported to da...

Craniopharyngiomas (CP) are low-prevalent tumors characterized for their local invasiveness and poor clinical outcomes, often requiring aggressive therapeutic measures. Ki67 is a marker of proliferation with good correlation with tumor recurrence in many solid tumors but this relationship is unclear in CP. Our aim is to determine whether Ki67 could be a marker for recurrence in CP.Material and methods: Descriptive retrospective observational study. All p...

Introduction: The incidence of papillary thyroid microcarcinomas (MPT, max diameter≤10 mm) has increased in recent years. Most have a very good prognosis but some have growth during follow-up, lymph node and / or distant metastases.Material and methods: We performed a single-center, retrospective cohort study, n=114 patients (86% women, average age 48.3 years), diagnosed with MPT between 1998 and 2012. Risk stratification system (ATA 2015): 10 high...

Introduction: Continuous subcutaneous insulin infusion (CSII) therapy in type 1 diabetes (T1D) reduces the risk of hypoglycemia. Hypoglycemia remains a treatment-limiting factor. Impared hypoglycemia awareness (IHA) occurs in 25% of T1D cases and seems to be underestimated by continuous glucose monitoring (CGM). Glycemic variability (GV) is a increasingly valued parameter as a predictor of hypoglycemia and risk of chronic complications.Objective: Analysi...

Background: In type 1 diabetes (T1D), quality of life (QoL) and the effectiveness of treatment influence each other. QoL has been associated with glycaemic control assessed by HbA1c in T1D on continuous subcutaneous insulin infusion (CSII), but data on the relationship between Continuous Glucose Monitoring (CGM) metrics and QoL are scarce.Objectives: To assess QoL and the association between CGM metrics and QoL in T1D on CSII.Metho...

Fatty liver (steatosis) can progress to non-alcoholic fatty liver disease, increasing the risk of diabetes and cardiovascular disease. Growth hormone (GH) deficiency is associated with steatosis, while raising GH reduces steatosis. To date it remains to be determined how GH mediates this hepato-protective effect. To investigate the hepatocyte-specific actions of GH, a mouse model of adult-onset hepatocyte-specific GH receptor knockdown (aHepGHRkd) was generated by treating adu...

Introduction: Adrenocorticotropic hormone (ACTH)-dependent Cushing’s syndrome (CS) secondary to an ectopic source is an uncommon condition, accounting for 4-5% of all cases of CS and between 9-18% of cases of ACTH-dependent CS. Although numerous malignancies have been associated with ectopic ACTH syndrome (EAS), lung neuroendocrine tumours (NETs) are the most common. Refractory hypokalemia can be the presenting feature in EAS and is seen in up to 80% of cases. We present ...

Introduction: Central pontine myelinolysis (CPM) is a rare and potentially life-threatening complication of a sudden rise in serum osmolality. Along with extrapontine myelinolysis, it is part of the osmotic demyelination syndrome (ODS). Known risk factors include severe hyponatremia, alcoholism, thiazide use, hypokalemia, and malnourishment.Case report: We report the case of a 31-year-old-male with history of alcohol and cannabis dependence, who had atte...

Introduction: Inferior petrosal sinus sampling (IPSS) has been considered to be the gold standard for differential diagnosis of Cushing’s Disease (CD) and ectopic ACTH secretion (EAS).Aim: To describe the experience of our centre in performing IPSS, its safety and efficacy; assess remission rates from transphenoidal surgery and clinical course; approach to the difficulty in the etiological diagnosis of ACTH-dependent Cushing’s Syndrome.<p c...

Liver autophagy, as assessed by accumulation of LC3-II and p62 proteins, is positively correlated with the severity of nonalcoholic steatohepatitis (NASH) in humans. Since growth hormone (GH) is negatively associated with liver steatosis and NASH development, and our laboratory has reported that steatosis and NASH develops in a mouse model of adult-onset, hepatocyte-specific GH-Receptor knockdown (aHepGHRkd), we sought to determine if GH directly regulates the hepatocyte autop...