ESPE Abstracts

Genomic imprinting in mammals is controlled by DNA methylation. This essential epigenetic phenomenon mediates the mono-allelic expression of about hundred autosomal protein-coding genes and hundreds of regulatory non-coding RNAs, such that these become expressed from one of the two parental alleles only. Although the first imprinted genes were discovered less than thirty years ago, given their key roles in fetal development, homeostasis and brain functions, these exceptional g...

Background: GnRH analogue and subsequent oestradiol treatments are indicated to alleviate gender dysphoriain adolescent male to female young people (MtF; transgirls). Side effects include impairments in gonadal histology that may cause infertility or biological sterility. Current guidelines encourage professionals to address potential infertility risk and fertility preservation options with transgender youth and their families before starting these treatments.<p class="abs...

Background: In humans, glucocorticoids (GCs) regulate a broad spectrum of physiologic functions, exerting both genomic and nongenomic actions through their ubiquitously expressed glucocorticoid receptor (hGR). The rapid nongenomic actions of GCs are likely to be mediated by membrane hGRs that transduce the glucocorticoid signal via activation of kinases. S-palmitoylation plays an important role in plasma membrane localization and occurs through a highly conserved nine amino ac...

Introduction: Classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency (21OHD) is a rare, autosomal disorder characterized by deficiency of cortisol and oftentimes aldosterone, elevated adrenocorticotropic hormone (ACTH), and excess androgen production. In a phase 2 study of adolescents with classic 21OHD, 14 days of treatment with the corticotropin-releasing factor type 1 receptor (CRF1) antagonist, crinecerfont, led to median percent red...

Background: Obesity has been associated with perturbations of the hypothalamic–pituitary–adrenal (HPA) axis and the sympathetic nervous system (SNS). Scalp hair cortisol has been recognized as a reliable index of long-term cortisol concentrations.Objective and hypotheses: Aim of this study was to compare indices of HPA axis and SNS activities, such as, respectively, the salivary cortisol and alpha-amylase diurnal patterns, and their relations i...

Background: systematic data about endocrinopathies in Rett syndrome (RTT) patients are still scarce and not univocal.Objective: to assess the prevalence of endocrinopathies in a pediatric population of RTT patients.Design: retrospective observational single center study.Methods: 29 caucasian patients (28 girls,1 boy) with genetically confirme...

Introduction: Autoimmune Polyglandular Syndrome Type I (APS1) is a rare condition caused by mutations in the AIRE gene (autoimmune regulator). The diagnosis is challenging and delayed due to its non-specific clinical manifestations such as candidiasis, hypoparathyroidism and hypoadrenalism. More than a hundred mutations of this gene have been described and hereby we present a girl who was found to have a novel mutation of AIRE gene with patho...

Objectives: Several different pathogenic mechanisms may converge on a final common pathway to produce the phenotype of delayed pubertal timing. In our cohort of patients with familial self-limited delayed puberty (DP) we have demonstrated mutations in IGSF10 leading to mis-regulation of the embryonic migration of GnRH neurons (Howard et al, EMBO MM 2016). We aimed to discover novel genetic mutations in pathways regulating GnRH neuronal migration and developme...

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: Promotion of high pick bone mass is one of the strategies to prevent osteoporosis in adult life. Undergraduate students are still in the age group of mineral acquisition and, therefore, their lifestyle may influence this process. Physical exercise is an important lifestyle characteristic for optimize peak bone mass (PBM).Objective: To evaluate bone mass in undergraduate students with different lifestyle.Methods: Observa...