Endocrine Abstracts

Thyroid dysfunction has been linked to reduced fertility. It is known that changes in SHBG and sex steroids are a consistent feature associated with hyper- and hypothyroidism. It is also has reported that women with polycystic ovary syndrome (PCOS) are more insulin-resistant than it would be expected on the basis of their age and BMI. The mechanisms underlying this phenomenon are still not clarified. Hyperandrogenaemia may play a role, but also other factors such as thyroid fu...

It is well known that weight losses in the range of 2.5–5% are able to improve factors of the metabolic syndrome such as insulin sensitivity. Several studies have been published concerning weight loss and subsequent changes in inflammatory markers and indicate that higher weight losses are necessary to affect the inflammatory markers than are needed to affect insulin sensitivity. Some data showed impairment of insulin sensitivity in diabetic patients during starvation. Th...

C-reactive protein (CRP) is closely associated with obesity and cardiovascular disease in both diabetic and nondiabetic subjects. The aim of our study was to investigate the effects of commonly prescribed antidiabetic agent metformin on CRP and insulin sensitivity in type 2 diabetes patients after 12 weeks of therapy. Twenty-three newly diagnosed type 2 diabetic patients (mean age: 49.74±2.03 years; mean BMI: 31.40±1.27 kg/m2) have been given metformin 2 g...

It was reported that patients with primary hyperparathyroidism (PHPT) are insulin resistant, and that surgical treatment may improve insulin sensitivity in this group of patients. The aim of our study was to evaluate the effect of surgical treatment on insulin sensitivity and acute insulin response (AIR) in patients with PHPT.Methods: In patients with PHPT (n=37; age: 57.72±8.29 years, BMI 26.22±4.37 kg/m2) euglycemic–hyp...

It was previously shown that patients with primary hyperparathyroidism (PHPT) are insulin resistant.Aim: The aim of our study was to evaluate the effect of surgical treatment on glucose tolerance, insulin secretion and sensitivity (SI) in patients with PHPT.Material and methods: In 26 patients with PHPT (age: 57.15±9.54 years, BMI 26.00±4.55 kg/m2, PTH 276.61±64.83 ng/l, Calcium 2.95±0.19 mmol/l)) AIR...

Objective: It was previously shown that primary hyperparathyroidism (PHPT) might induce impaired renal function and chronic renal failure. The aim of our study was to evaluate the effect of surgical treatment on parameters of calcium and phosphate renal metabolism and renal function in patients with PHPT.Material and methods: In 26 patients with PHPT (age: 57.15±9.54 years, BMI 26.00±4.55 kg/m2, PTH 276.61±64.83 ng/l, Calcium 2....

Objective: It was previously shown that patients with primary hyperparathyroidism (PHPT) have atherogenic dyslipidaemia. The aim of our study was to evaluate the effect of surgical treatment on lipid levels in patients with PHPT.Material and methods: In 26 patients with PHPT (age: 57.15±9.54 years, BMI 26.00±4.55 kg/m2, PTH 276.61±64.83 ng/l, Calcium 2.95±0.19 mmol/l) Total cholesterol (TC), HDL-C, LDL-C, triglyceride (TG),...

Introduction and aims: Recent epidemiological studies have suggested serum gamma glutamyltransferase (GGT) within its normal range might be an early marker of oxidative stress. Oxidative stress appears to be a key component of many reactions associated with chronic inflammation. Obesity is associated with elevated levels of biomarkers of inflammation and endothelial dysfunction. Oxidative stress and inflammation are also known to play critical roles in the pathogenesis of vasc...

Polycystic ovary syndrome (PCOS) is associated with adiposity and metabolic changes predisposing to insulin resistance. Because the recently discovered GH secretagogue, ghrelin is intimately involved in the control of appetite and weight regulation, we investigate ghrelin levels in non-obese and obese PCOS patients. Ten obese (BMI=32.50±1.57 kg/m2) and ten non-obese (BMI=20.45±0.51 kg/m2) patients with PCOS and their respective controls were eva...

It was previously shown that patients with primary hyperparathyroidism (PHPT) are insulin resistant. The aim of our study was to evaluate the effect of surgical treatment on insulin sensitivity and lipid levels in patients with PHPT. In 21 patients with PHPT (age: 56.24±8.69 years, BMI 25.2±3.81 kg/m2) lipid levels (TC, HDL, LDL, TG, Lp(a)) and insulin sensitivity were determinated before and 4 months after surgical treatment. Insulin sensitivity was evalu...