Endocrine Abstracts

Introduction: After gastric bypass, gastric secretion decreased and resorption of minerals and vitamins may be compromised. Lower resorpion of serum calcium and vitamin D could stimulate PTH secretion after restictive and malabsorptive bariatric procedures.Methods: We have measured serum calcium, D vitamin and PTH in patients (n=50, 17 males and 33 females) 6 and 12 months after R en Y gastric bypass, 38.6±12.6 years of age, with BMI 43&#17...

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...

In most obese patients, obesity is associated with a low-grade inflammation of white adipose tissue resulting from chronic activation of the innate immune system and which can subsequently lead to insulin resistance, impaired glucose tolerance and even diabetes. It is still not clear role of acquired immune response in obesity and related comorbidites such as asthma, cancer or autoimmune diseases. The aim of our study was to compare level s of IL-17 and IL23 in sever obese wom...

It was postulated that different therapeutic approaches could influence the markers of inflammation in obesity but it is unknown whether overweight women with and without metabolic syndrome have the same degrees of inflammatory state. The aim of our study was to compare level of hs-CRP in obese women without other components of metabolic syndrome with hs-CRP in women with metabolic syndrome (according IDF criteria). Overweight body mass index-matched women without (OW)) (n<...

It was speculated that androgen levels and insulin resistance may have influence on ghrelin levels. Elevated, normal and low ghrelin levels were reported in women with polycystic ovary syndrome (PCOS). The aim of our study was to investigate the basal ghrelin levels in lean patients with PCOS and to evaluate possible correlations between ghrelin levels, insulin resistance and, androgen levels. In 10 lean PCOS patients (BMI 20.45±0.51 kg/m2, age: 21.4±0.85 ...

Hemorrhagic fever with renal syndrome (HFRS) is an acute viral disease caused by Hantavirus. One of the rare complications of this disease is hypopituitarism (only sporadically reported) due to hemorrhage, necrosis and atrophy of anterior pituitary lobe. The aim of the study was to investigate the anterior pituitary function in patients who recovered from HFRS.We evaluated 31 patients (29 male and 2 female), aged 38.7±2.2 years, with BMI 25.7±0...

There are different explanations concerning observed improvement of glucose control after baiatric gatric bypass surgery. The aim of our study was to investigate GLP-1 response after test meal (Fresubin drink a 200 ml; 200 kcal, 15% protein, 30% fat and 55% carbohydrate) before (day 0) and 5; 90 and 180 days after gastric bypass surgery. Glycaemia (mmol/l; glucose oxidase) and GLP-1 (Active 7-36) (pM/l; ELISA, ALPCO diagnostics) were determined in 41 obese patients (age: 37.86...

Introduction: Different surgical procedures are followed by alteration in insulin sensitivity. The aim of our investigation was to analysed the influence of major (open cholecystectomy) and minor surgical stress (laparoscopic cholecystectomy) on insulin resistance.Methods: Insulin resistance was calculated by HOMA-IR before surgery and at 1st, 3rd, and 7th day after the elective operations. All participants were divided in two groups: group A with open c...

Bariatric surgery, especially malapsorptive procedures like gastric bypass, can lead to anaemia due to lack of iron absorption as well as vitamins essential for the normal functioning of the hematopoietic system.Methods: We have analysed changes in red blood cells (RBC), haemoglobin (Hb), white blood cells (WBC), serum iron (Fe), and vitamin B12 3 years after gastric bypass in 142 morbidly obese patients (female, n=108 and male, n=34). ...