Endocrine Abstracts

The GH response to standard provocative tests is significantly lower in adult patients with Prader–Willi syndrome (PWS) than obese controls with similar body mass index (BMI). Nevertheless, BMI is an inadequate measure of body composition in PWS, because PWS harbour a higher fat mass than simple obesity, under the same degree of weight excess. This study evaluated either the GH response to combined GHRH+arginine administration and the fat body mass, by dual energy X-ray a...

Irisin is a myokine involved in the browning of white adipose tissue and in the regulation of energy expenditure, glucose tolerance and insulin sensitivity. It was previously demonstrated that obese adults with Prader-Willi syndrome (PWS) harbor lower irisin levels than individuals with common obesity. Significant associations seem to relate irisin to muscle mass, REE, insulin resistance and triglycerides and also the strongest independent predictors of irisin levels were PWS ...

Introduction: Prader Willi Syndrome (PWS) is a genetic syndrome characterized by hyperphagia, morbid obesity, and many other endocrine alterations. PWS subjects present higher ghrelin levels. The cause of this increase as well as the modulation of ghrelin secretion at fasting and feeding in relation to other metabolic parameters in PWS is largely unknown. It has also been demonstrated that many ghrelin gene (GHRL) polymorphisms are associated with obesity, type 2 diabetes, and...

Introduction: Hypothalamic–pituitary anomalies are well proven in Prader–Willi syndrome (PWS). In this context, it has been previously reported that central adrenal insufficiency (CAI) may be part of the PWS phenotype. However, the diagnostics of CAI is critical and debated, due to the lack of fully reliable tests. Several studies have looked at the clinical usefulness of the low dose (1 μg) short Synacthen test (LDSST) compared to the conventional dose (250 &#9...