ESPE Abstracts

Objective and hypotheses: The objective was to use whole-genome RNA profiling of testicular biopsies by DNA strand-specific RNA-sequencing to explore the causative role of isolated congenital cryptorchidism in azoospermia and/or infertility.Method: Fifteen cryptorchid patients, aged 7 months to 5 years, were enrolled in this study and underwent orchidopexy. During surgery, testicular tissue biopsies were collected and split in half for histological exami...

Background: The deciphering of the physiological importance of the GH secretagogue receptor (Ghsr), a G protein-coupled receptor (GPCR) depicted as the sole receptor of the pleiotropic hormone ghrelin, was initially compromised by the modest phenotype observed in Ghsr−/− animals. This lack of a robust response to total loss of Ghsr may result from developmental compensatory signals. Still, the description of rare mutations in the GHSR p...

Background: Knowledge about the effect of GH treatment on adaptive functioning in children with Prader–Willi syndrome (PWS) is limited.Objective and hypotheses: The aim of this study was to investigate the effect of GH treatment on adaptive functioning in children with PWS.Method: Vineland Adaptive Behavior Scale (VABS) was assessed at start, at the end of the RCT, and after 7 years of GH treatment. In the RCT, 75 children (42...

Background: Turner syndrome, characterized by complete or partial absence of second sexual chromosome, is responsible for phenotype of variable severity.Objective and hypotheses: The main objective of this work is to describe the evolution of the age at diagnosis of Turner syndrome over time. We also performed a phenotypic and genotypic description and we assessed evolution over time.Method: It is a monocentric descriptive observat...

Background: Monogenic diabetes is a heterogeneous group of diabetes due to a single gene mutation and includes neonatal diabetes (NDM), MODY and rare forms of syndromic diabetes. These forms of diabetes remain undiagnosed in probably more than 90% of patients. The aim of the study was to identify mutations causing monogenic diabetes using a single test.Method: Swiss endocrinologists were proposed to participate in the study and to send blood samples of t...

Background: Microcephalic primordial dwarfism (MPD) is a group of rare genetic disorders defined by severe growth restriction of both prenatal and postnatal weight (W), height (H), and particularly head circumference (HC).Objective and hypotheses: To elucidate the genetic origin of the MPD in dizygotic twins.Method: Exome sequencing of 19 genes known to be implicated in microcephaly was performed.Results: Diz...

Background: Final results from MEGHA study required by Health French Authorities (HAS).Objective and hypotheses: Objectives are to carry out longitudinal follow-up during maximum 5 years of AGHD patients treated with Saizen, with a description of prescription modalities, demographic and clinical characteristics, patient compliance, product safety, and quality of life.Method: MEGHA is a multicentric study, with prospective follow-up...

Background: Acromegaly is a rare childhood disorder. The use of a growth hormone (GH) receptor antagonist, pegvisomant, has shown great results in adults with acromegaly. We describe results of pegvisomant therapy in two girls with invasive GH pituitary macroadenomas.Case presentation: Case 1: A somatotroph pituitary macroadenoma was diagnosed in a 8-year-old girl with progressive tall stature (height: 148 cm, >+3 S.D.; growth velocity...

Aims: In children with new-onset type 1 diabetes mellitus (T1D), insulin dose regimens vary substantially. According to current ISPAD recommendations, the initial total daily dose (TDD) should range from 0.7 to 1.0 IU/kg BW/day. Adjusting TDD to achieve normal blood glucose concentration can take several days. The primary objectives of our INSENODIAB (INsulin SEnsitivity in New Onset type 1 DIABetes) study were to assess how patient characteristics influence i...

Background: Aggrecan (ACAN) is a proteoglycan found in the extracellular matrix of articular and growth plate cartilage. Animal studies have shown that mutations in the ACAN gene lead to premature hypertrophic chondrocyte maturation, causing accelerated cartilage ossification. Patients with ACAN deficiency present with dominantly inherited short stature, often with advanced skeletal maturation and premature growth cessation, as well as early-onset joint diseas...