ESPE Abstracts

Purpose: Isolated growth hormone deficiency (IGHD) is a rare condition mainly caused by mutations in GH1. The aim of this study was to assess the contribution of GHRHR mutations to IGHD in a very large cohort of patients.Methods: All GHRHR coding exons and flanking intronic regions were sequenced in 312 unrelated patients with non-syndromic IGHD. Functional consequences of all newly identified missense variants were assessed <e...

Background: GLI2 is a zinc-finger transcription factor of the SHH signaling pathway, expressed during ventral forebrain and pituitary development. GLI2 mutations account for microforms of dominant holoprosencephaly. So far, only 15 unambiguous mutations were found in hypopituitarism –essentially combined pituitary hormone deficiency (CPHD)– frequently associated with holoprosencephaly-like malformations and/or polydactyly.Objective and...

Background: Bi-allelic GHR mutations are classically responsible for Laron syndrome, a severe growth hormone (GH) resistance syndrome. A few GHR missense mutations have also been implicated in mild GH resistance or idiopathic short stature. IGFALS mutations are responsible for recessive or semi-dominant short stature with normal GH provocative test contrasting with extremely low IGF-I levels.Objective and hypotheses: To assess the contribution of GHR and...

Background: Although GH’s safety profile since 1987 is good, concerns remain regarding cancer (CA) risk, and French SAGhE data indicated increased mortality and cerebrovascular disease (CVD) in certain GH-treated patients (pts).Objective and hypotheses: To evaluate key safety outcome incidence in GH-treated pts of all short stature diagnoses (dx) who participated in GeNeSIS (1999–2015, 30 countries).Methods: Pt history/ca...

Background: Twenty-three national healthcare networks for rare diseases were identified in 2014 as part of the French scheme on rare diseases. The rare endocrine disease national healthcare network FIRENDO (www.firendo.fr) includes six centers of reference with complementary fields of expertise certified between 2005 and 2006, 30 centers of competence covering all French regions, 18 research and 37 diagnostic laboratories, 5 national learned...

Background: In the last 50 years bone age has been manually evaluated using the method of Tanner and Whitehouse. Recently automated image analysis has been introduced for bone age determination. The automated method shows good agreement with manual evaluation; further, the precision of the automated method may be higher compared to the manual method.Objective and hypotheses: To report on the discrepancy of bone age determination using the manual TW2 meth...

Background: Childhood brain tumour survivors are at risk of developing endocrine secondary effects throughout lifetime. Transition between childhood and adult care is a critical moment during which patients may stop medical visits and treatments.Objective: To describe endocrine care transition in our cohort of patients with primary brain tumors followed from 2010-2015, who are ≥=18 years old by December 31st</...

Introduction: Graves'disease (GD) is a polygenic and multifactorial disease.The innate immune system is a complex network of structured cells and proteins, including the Toll-like receptors (TLRs), which are also expressed on the cells of the adaptive immune system.The aim was to assess the relationship between the expression of TLR-2 on the surface of T CD4+ and CD8+ lymphocytes in pat...

Background: Almost all cases of hyperthyroidism in children result from Graves’ disease (GD). Recent studies have confirmed a significant role of T cells in the development of autoimmune diseases. However, the interactions between NKT-like cells and NK cells in GD are still poorly understood.Objective and hypotheses: The aim of the study was to assess the frequencies of peripheral blood T, NK and NKT-like cells in children with GD.<p class="abst...

Congenital hyperinsulinism (CHI) is a complex heterogeneous disease affecting 1 in 40.000 newborns. Recurrent hypoketotic hypoglycaemia led to permanent mental and motor disabilities in 30-40% of children. Histologically three types had been differentiated: focal, diffuse and atypical. Up to now, only focal-type CHI can be permanently cured by focus removal. Focal-type CHI is characterized by paternal inherited mutation of ABCC8 or KCNJ11 mutations. Therefore mutation anal...