ESPE Abstracts

Feeding behavior is exquisitely regulated by homeostatic and hedonic neural substrates that integrate energy demand as well as the reinforcing and rewarding aspects of food. Understanding the net contribution of homeostatic and reward-driven feeding has become critical due to the ubiquitous source of energy-dense foods and the consequent obesity epidemic. Hypothalamic, agouti-related protein-secreting neurons (AgRP neurons) represent primary orexigenic drives of homeostatic fe...

Introduction: One of the factors affecting the treatment decision in early puberty is bone age (BA) evaluation and adult height prediction (AHP), accordingly. These calculations have certain limitations. In this study, we aimed to compare the AHP results calculated by Bayley-Pinneau (BP) and Roche-Wainer-Thissen(RWT) methods based on BA evaluation by using Greulich-Pyle(GP) atlas and BoneXpert™ software.Methods: A t...

Introduction: In cases of precocious puberty, an important factor in making treatment decisions is when adult height estimates based on bone age (BA) determination are behind midparental height. In Turkey, clinicians often use the Greulich Pyle (GP) atlas to determine BA, which can lead to significant differences between assessors. The aim of this study was to compare estimated adult height (EAH) calculations based on BA determined by the automated BoneXpert m...

Background: The phases of human growth are associated with gene expression (GE) changes1, raising the possibility that rhythmic patterns of GE occur throughout childhood.Objective: In this study, we have assessed time-series patterns of GE profiles associated with age to characterise oscillations.Methods: GE analysis was conducted on cells of lymphoid origin from normal individuals through childhood (n=87, 43 ma...

Background and Aims: The most effective environmental factor that affect longitudinal growth is nutrition, but the exact composition and the relative benefits of specific dietary proteins in supporting linear growth is unknown. In the current study, we compared the effect of whey and soy proteins on linear growth and bone strength in young fast growing male rats. Both proteins contain all essential amino acids and are considered the best proteins in their cate...

Background: Skeletal maturation is the most reliable indicator of biological age in children and adolescents. The evaluation of hand and wrist X-Ray according to Tanner-Whitehouse (TW3) or Greulich-Pyle (GP) are the most commonly used methods for biological age assessment. Automated bone age assessment has recently become increasingly popular, however a large independent study comparing automated and manual evaluation of bone age is still missing. The aim of this study was to ...

Background: Pubertal growth, age of puberty onset and pubertal spurt duration are correlated to final height (FH). Few data are available in subjects with rare genetic syndromes.Objective and hypotheses: To evaluate pubertal pattern and its influence on FH in subjects with different genetic syndromes including the effect of GH-therapy for GH deficiency (GHD) and GnRH analogs for precocious puberty (PP).Method: We studied for growth...

Introduction: Longitudinal skeletal growth is achieved by enchondral ossification in epiphyseal growth plates (GP) of long bones and vertebrae. These highly organized cartilaginous tissues contain chondrocytes of all differentiational stages classified in three distinct zones named resting, proliferative and hypertrophic. Separated analysis of individual zones is essential in basic GP research thus efficiency of different zonal separation methods confers high ...

Background: The BoneXpert method is an automated determination of bone age, which employs deformable models of each bone to locate the bones, and extracts the component of the bone appearance related to maturity in a holistic, statistical manner. The BoneXpert has been validated on normal children and children with diagnoses typical of pediatric endocrinology. Multiple clinical studies suggested that BoneXpert has adequate accuracy, precision, and efficiency to be clinically u...

Background: PROP1 (Prophet of POUF1) mutations are the most frequent genetic cause of combined anterior pituitary hormone deficiency. The PROP1 gene encodes a transcription factor of synthesis: somatotrophs, lactotrophs, thyreotrops and gonadothrops. These mutations are characterized by great clinical variability, including time of onset of hormonal deficiencies, hypophyseal dimensions and secretion of cortisol.Objective and hypothesis: Referral of child...