ESPE Abstracts

Objective: IGF-1 receptor mutations (IGF1RM) are a rare abnormality; however, affected patients exhibit severe postnatal growth retardations without catch-up growth. Although several cases of IGF1RM have been described, a comprehensive retrospective analysis of the potential benefit of rhGH treatment is still missing. The aim of this study was therefore to investigate baseline auxology, response to rhGH therapy and potential metabolic effects in patients with IGF1RM in compari...

Background: Wolfram syndrome (WS) is a rare autosomal recessive disorder, characterised by early-onset diabetes and optic atrophy. It is caused by mutations in WFS1.Objective and hypotheses: This study aimed to comprehensively review the natural history of WS in a large cohort of patients from the EURO-WABB registry.Method: Data from EURO-WABB patients with WS was analysed in conjunction with the Leiden Open Variation Data...

Background: Seip-Berardinelli syndrome is a rare form of congenital lipodystrophy.Objective and hypothesis: To report a patient later diagnosed with Seip-Berardinelli syndrome referred initially for evaluation due to low weight gain.Population and/or methods: We performed the report of the case along with a literature review.Results: The patient was referred due to low weight gain. She was the second daughter...

Background: Autosomal recessive omodysplasia is considered a rare skeletal dysplasia characterized by severe micromelia with shortening and distal tapering of the humeri and femora.Objective and hypothesis: To report the prenatal findings of a patient with autosomal recessive omodysplasia, a rare condition characterized by disproportionate short stature.Population and/or methods: We performed a description of the case along with a ...

Background: Hypospadias affects approximately 1/200 newborn males. Based on the testicular dysgenesis syndrome hypothesis, some may be suspected of having persistent testicular dysfunction later in life. Few clinical data currently support this hypothesis.Methods: Cross-sectional assessment of hypospadias cases (n = 193) and controls (n = 50), aged 16-21 years, recruited at Ghent University Hospital and...

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...

Introduction&Aim: Activation of mechanistic target of rapamycin (mTOR) as a major regulator of adipogenesis and lipid accumulation is controlled by upstream regulators hamartin/tuberous sclerosis complex (TSC) 1 and tuberin/TSC2. Hamartin and tuberin form a protein complex that inhibits signal transduction to mTOR. The impact of TSC1 deficiency is not clearly defined in human adipose tissue. We identified a likely pathogenic TSC1 splicing variant in a lipo...

Introduction: Bardet-Biedl syndrome (BBS) is a rare, autosomal recessive ciliopathy, with a prevalence of 1 in 100,000 – 160,000, caused by mutations across >20 known genes encoding for proteins responsible for the integrity of the primary cilium/basal body complex. Endocrinopathies associated with BBS include hypogonadism, hypothyroidism, and the metabolic complications of obesity. The endocrine characteristics of a large adult BBS cohort have been r...

Background: Cis-gender females are known to mount stronger immune responses to invading pathogens or vaccines than cis-gender males. However, this is also associated with increased risk of autoimmunity. Little is known about the immunophenotypes of transgender individuals on gender-affirming hormonal treatment, despite growing evidence that hormones influence the immune system. Via the process of class-switch recombination (CSR), B-cell immunoglobulin isotype ...

Background: There is limited reporting of the impact of genital difference on early childhood experience, although the young person’s viewpoint should be at the core of patient centred clinical decision making. The experience of girls living with Congenital Adrenal Hyperplasia (CAH) may differ according to context, being influenced by interactions within the family, with specialist teams as well as prevailing social values. Clearly there is a need to inv...