Endocrine Abstracts

Objective: Primary hyperparathyroidism (PHPT) is systemic disease affecting bone metabolism and glucose homeostasis. Patients with PHPT are insulin resistant and have atherogenic dyslipidaemia. Osteocalcin (OC) is bone biomarker associated with increased insulin secretion and insulin sensitivity and decreased visceral fat The aim of our study was to evaluate the body composition and levels of bone biomarkers (osteocalcin and betaCTx), insulin sensitivity and lipids in patients...

Introduction: Calcium plays a key role in myocardial contractions and relaxation. Heart failure induced by hypocalcemia is rare but potentially reversible case.Case report: We present the case of 50 years old woman with muscle cramps, cataract, chest pain and dyspnea that lasts 2 years. In regional health center she was treated as psychiatric patient and COPD. Last few months she became extremely malaise with crural edemas and walking distance of 100 m. ...

Introduction: Adiponectin and its receptors are expressed in human osteoblasts, suggesting that adiponectin may be a hormone linking bone and fat metabolism. In contrast to adiponectin anabolic effect on bone in vitro studies, clinical and animal studies suggest that adiponectin may have negative effects on bone by stimulating the receptor activator of nuclear factor-κB ligand (RANKL) pathway and inhibiting the production of the decoy receptor for RANKL and osteopr...

Introduction: Recent animal’s studies suggest that osteocalcin have influence on beta cell proliferation, insulin secretion and insulin sensitivity. Osteoblasts appear to regulate energy expenditure by acting on adipocytes and pancreatic islet cells via osteocalcin, a 49-residue polypeptide. In turn, adipose tissue may also influence bone remodeling by regulating the activity of osteoblasts through adipokines, including leptin and adiponectin. Some of the complex mechanis...

Different hypothesis exist about the mechanism of glycose control after bariatric surgery involving intestinal bypass. The aim of our study was to determine the insulin and C-peptide response after test meal (Fresubin drink a 200 ml; 200 kcal, 15% protein, 30% fat and 55% carbohydrate) before (day 0) and 5 days after gastric by pass surgery. Glycaemia (mmol/l; glucose oxidase), insulin (ECLIA, Roche Diagnostics, pmol/l) and C-peptide (ECLIA, Roche Diagnostics, pmol/l) were det...