ESPE Abstracts

Background: Unlike term neonates, known to exhibit a physiological pseudohypoaldosteronism, very preterms (VPT) display a high sodium waste at birth with partial aldosterone deficiency. This context, combined with a low aldosterone/renin ratio is highly suggestive of a defect in mineralocorticoid biosynthesis.Objectives and hypotheses: To investigate mineralocorticoid and glucocorticoid pathways in newborns, and to clarify the impact of prematurity upon ...

Background: Endoplasmic reticulum (ER) is the site where proteins are folded in the cell. Metabolic stress alters ER homeostasis and activates the unfolded protein response (UPR), which contributes to the development of insulin resistance and metabolic syndrome.Objective and hypotheses: To longitudinally evaluate liver UPR and its functional consequences in an animal model of IUGR followed from birth to adulthood.Method: On day 19 ...

Background: Diazoxide and octreotide are first and second-line of treatment for HH respectively. Long-acting somatostatin analogue (Lanreotide, LA) has been used in adults with neuroendocrine conditions through its effect on somatostatin receptors 2 (SSTR2) and 5 (SSTR5).Objective and hypotheses: (i) To evaluate the efficacy, safety and pharmacokinetics of LA therapy in children with HH. (ii) To determine somatostatin receptor expression on pancreatic al...

Background: Early life stress (ELS) are known to have a deleterious impact on health, but their potential long-term consequences on mortality remain to be assessed. World War 1 (WW1) has caused major stress and bereavement to millions of European mothers.Objectives and hypotheses: To compare the effects of a maternal stress occurring during intra uterine or in postnatal life upon long-term mortality.Patients: Thanks to recently dig...

Background: Bisphenol A (BPA), a ubiquitous endocrine-disrupting chemical, has been shown to exert transgenerational effects on adiposity, metabolism, and reproductive outcomes in rodents, indicating epigenetic inheritance. Recent studies of other environmental insults (stress and high-fat diet) have demonstrated a mechanistic role for spermatozoal microRNAs in the transgenerational transmission of acquired paternal traits.Objective and hypotheses: To as...

Background: Nutrient deprivation during early development has been associated with the predisposition to metabolic disorders in numerous epidemiological studies. Experiments with rodents also indicate a developmental plasticity of neuropsychological characteristics following alterations of early postnatal nutrition.Objective: Considering its interaction with metabolism and regulation of appetite and behavior, the endocannabinoid system (ECS) may represen...