Endocrine Abstracts

Background: Bony deformity due to primary hyperparathyroidism is a rare entity in children.Methods: We describe two children who presented with genu valgum to the Endocrine Department. Ten children with primary hyperparathyroidism presenting with genu valgum have been reported in literature and have been reviewed by us.Results: Biochemical investigations revealed parathyroid hormone dependent hypercalcemia despite a deficiency of v...

Introduction: NICE NG18 recommends level 3 carbohydrate counting from diagnosis for CYP diagnosed with Type 1 Diabetes. Our unit introduced in-patient level 3 carb counting from day 1 in 2015 in response to an audit demonstrating sub-optimal control in the first year of treatment.Methods: We carried out a longitudinal study of HbA1c in paediatric patients during the first year of diagnosis in two time periods, before and after the introduction of carb co...

Aim: Clinical presentation of primary hyperparathyroidism (PHPT) differs between populations. In this study, we aimed to examine bone mineral density (BMD) and bone metabolism parameters in newly diagnosed and untreated PHPT patients in a single endocrine center in İstanbul, Turkey.Methods: Consecutive 256 PHPT patients (50.7±14 years, F/M:205/51) and 89 healthy controls (38.8±10 years, F/M:67/22) were included in the study. Serum calcium...

Introduction: Patients with craniopharyngeoma often have disturbances of the hypothalamic–pituitary axis and serious comorbidities as obesity. We hypothesized, that the pattern of hormones regulating the nutritional status is worsened in adult patients with craniopharyngioma (CP) compared to adult patients with non-functioning pituitary adenoma (NFPA).Methods: We included 33 patients with CP (m=16, f=17, median age: 48 years (26–7...

The aim of this work is to present two patients with vitamin D deficiency and primary HPT.A 51-year old woman (first refer, 2009-jul) was operated for pathohistologically confirmed parathyroid (PT) adenoma seen by ultrasound (US) and scintigraphy (Sc). Patient treated for previous years for hypertension and depression. Calcium (Ca; mmol/l): 3.1; Creatinine (Cre; μmol/l): 67. The results will be shown in following order: pre-/postoperatively, 3rd mon...

Background: PCOS is a metabolic disorder associated with long-term health risks including insulin resistance, type 2 diabetes and dyslipidaemia. Metformin improves insulin sensitivity in PCOS and reduces circulating concentrations of markers of endothelial dysfunction, although it is unclear whether this translates into improvements in vascular function.Objective: To determine whether metformin therapy improves arterial stiffness and endothelial function...

Androgen excess is a key feature of polycystic ovarian syndrome (PCOS). Pre-receptor regulation contributes to this with increased activation of testosterone (T) to 5α-dihydrotesterone (DHT) by 5α-reductase type 1 (SRD5A1), as we have shown previously in PCOS (Lancet 1990,335:431; JCE&M 2003,88:2760). Peripheral blood mononuclear cells (PBMCs) are easily accessible and a useful model for studying pre-receptor regulation in the immune compartment. We have previous...

Objective: Motilin is a proximal small intestinal hormone with roles in gastrointestinal motility, gallbladder emptying and hunger initiation. The molecular mechanisms underlying motilin release in response to fats, bile and duodenal acidification are poorly understood, in part due a lack of suitable cellular and rodent models. We therefore generated a novel human intestinal organoid model with fluorescently labelled motilin-expressing M-cells, which we used to establish the k...

Background: Salivary biomarkers are attractive diagnostic tools for paediatric practice, enabling non-invasive sampling at home. Salivary cortisol (SCl) and cortisone (SCn) are sensitive markers of adrenal insufficiency during inhaled corticosteroid treatment(1). SCn is reported to be the best correlate of plasma cortisol. Measurements of SCl may not be necessary, reducing cost and sample volumes.Eleven beta hydroxysteroid dehydrogenase type 2...

Introduction: Recent data suggest a reciprocal influence between bone and energy metabolism. Mediators have been identified as osteocalcin (OC), which stimulates insulin (IRI) secretion and activity and IRI as bone anabolic factor. Primary hyperparathyroidism (PHPT) stimulates bone turnover, induces osteoporosis and is associated with increased IRI resistance. A positive relationship between OC and IRI sensitivity has been found in PHPT, but no data exist on the relationship b...