Endocrine Abstracts

Leptin is best known as an appetite and metabolic rate modulator secreted from fat, but it also has a range of other functions including modulation in reproductive physiology. To date, most studies examining the role of leptin in male reproduction have focussed on individual tissues, often in vitro. In the current report, a bolus physiological dose of iodinated leptin was administered intravenously to male mice to and samples collected over a one hour time course to d...

Sex steroids have complex effects: testosterone predominantly regulates trabecular and estradiol, cortical bone1. Studies in transgender individuals use insensitive technology and report conflicting effects2. We hypothesized estradiol therapy will increase cortical volumetric bone mineral density (vBMD) in male-to-female (MtF) individuals and testosterone therapy will increase trabecular vBMD in female-to-male (FtM) individuals.Aims...

Aim: Focussed parathyroidectomy is an established technique in subjects where imaging has identified a single parathyroid lesion. The aim of this study was to examine the long-term cure rate following this procedure.Method: Of 188 patients undergoing surgery for primary hyperparathyroidism between 2001 and 2006, 150 had a single parathyroid lesion on imaging using sestamibi +/− neck ultrasound. These patients were treated by focused parathyroidecto...

Three siblings of Pakistani origin presented shortly after birth with failure to thrive and hyperkalemia and were found to have isolated hyperreninaemic hypoaldosteronism. They were all well controlled on fludrocortisone therapy during childhood and adolescence. When reassessed in adult life off fludrocortisone treatment, hyperreninaemic hypoaldosteronism was confirmed in all subjects, but with significant hyperkalemia in only one case. None of the subjects developed orthostat...

Introduction: Graves’ disease during pregnancy may cause maternal or neonatal complications, including arrhythmia, thyroid storm, congenital anomalies and neonatal thyroid dysfunction (TD). The optimal timing and frequency of TRAb measurement in pregnant women with a history of TD, and whether fetal monitoring could be limited to those with a strongly positive TRAb, is unclear.Methods: Retrospective case note review of women with elevated TRAb (>1 i...

BACKGROUND: Primary hyperparathyroidism (HPT) is increasingly diagnosed, particularly in an older population. Recent studies indicate improvement in bone mineral density (BMD) and psychological wellbeing even following treatment of apparent asymptomatic disease, supporting a lower threshold for surgical intervention. With disease being due to a solitary adenoma in most (83%) cases, we have utilised preoperative imaging together with intra-operative parathyroid hormone (IOPTH) ...