Endocrine Abstracts

Insulin sensitivity in GHD patients tends to decrease with age and variations in body composition. Several indices of insulin sensitivity have been considered and among these HOMA, ISI and QUICKI are based on mathematical calculations taking into account glucose and/or insulin levels either in basal conditions or after OGTT. Aim of present study was to validate the different indices in a population of pre-pubertal GHD children (n=66) by ROC curve analysis. All patients ...

Recent evidence shows that patients with traumatic brain injury (TBI) are at substantial risk of hypopituitarism. However, the pathomechanisms are still not completely understood. Little is known about the association of morphological changes in the sella region with pituitary function in TBI. In this study, we assessed morphological abormalities of the sella region in patients with TBI and their relation to endocrine function.We have studied MR or CT sc...

Insulin tolerance test (ITT) is considered the golden standard test to evaluate HPA axis in suspected hypopituitarism. Low dose (1 μg) ACTH1–24 short stimulation test (LDSST) and metyrapone are often used when ITT is contraindicated. The diagnostic reliability of LDSST is, however, controversial, as even this dose has been considered supramaximal, while very low ACTH doses have been suggested more reliable to assess the adrenal sensitivity. Thus, in...

Serum IGF-I levels were measured in 547 non-hypopituitaric, non acromegalic healthy subjects of both sexes in Italy to develop reference values in relation to age and gender. Participant subjects were stratified in three age classes (25–39, 40–59 and≥60 years) and IGF-I assay was carried out by double-antibody radio immunoassay. The Pearson’s correlation coefficient between age and IGF-I values was calculated by sex and pre-defined age ranges. IGF-I levels...