ESPE Abstracts

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 ...

Introduction: It is known that excessive gestational weight gain can cause an adverse intrauterine environment and increase the risk of cardio-metabolic diseases in the offspring. Epigenetics could be one of the mechanisms involved in this regulation.Objective: We aimed to study the DNA methylation profile of umbilical cord tissue that is associated with gestational weight gain (GWG), and its relationship with cardio-met...

Background and Aims: Gestational obesity can cause metabolic programming in the offspring. Epigenetic modifications of DNA have been suggested as potential mechanisms underlying this programming. FRAT-1 is a gene involved in the WNT signaling pathway, which is an important regulator of adipose tissue development. The objective of this work was to study the methylation status of FRAT-1 in placentas of women with either normal weight or gestati...

Introduction: Children with Prader-Willi syndrome present with short stature and obesity. However, very little is known about the role of this imprinted control region in the general population. This study aims to analyze the methylation status of the PWS imprinting control region (ICR) in placenta and its association with postnatal growth and obesity parameters in healthy children.Methodology: The methylation percentages of the PWS-ICR ...

Background: Infants with Prader-Willi syndrome (PWS) exhibit stunted growth. However, little is known about the role of genes expressed from the imprinted PWS domain in healthy infants. This study aimed to analyze the relative gene expression of the SNURF-SNRPN/UBE3A cluster in the imprinted PWS domain in umbilical cord tissue, and its potential association with prenatal and postnatal growth in apparently healthy infants.Methods:...

Iodine is an essential dietary micronutrient required for thyroid hormone synthesis and neurodevelopment in utero. Evidence of iodine insufficiency among British women is of particular concern in the context of pregnancy. The Mothers and Babies at Yorkhill (MABY) study is a Glasgow-based longitudinal cohort study assessing the iodine and thyroid status of pregnant women and their offspring.Pregnant women were recruited from antenatal clinics (20...

Background: Between the 6000 monogenic disorders, only few are due to a single mutation. Recently, a specific mutation has been described in TUBB3, encoding tubulin beta 3, in the association of Moebius syndrome (MS) and Kallmann syndrome (KS). MS is a congenital paralysis of eye and face’s muscles and can be caused by mutations of TUBB3. KS combines hypogonadotropic hypogonadism and anosmia.Objective and hypotheses: The combination of these two syn...

Abstract: Steroidogenic factor 1 (SF1)/"nuclear receptor subfamily 5 group A member 1" (NR5A1) is involved in adrenal and gonadal development, steroidogenesis and reproduction. The first patient, published in 1999 presented with a 46,XY difference of sex development (DSD) and adrenal insufficiency. The following year the first female patient with only adrenal insufficiency was described. Since then, heterozygous changes in SF-1/NR5A1 causing 46,XY DSD ...

Background: Insulinomas are very rare in childhood with sparse knowledge on the clinical aspects and the presence of Multiple Endocrine Neoplasia type 1 (MEN1).Methods: We conducted a multicentre retrospective review of patients diagnosed with insulinoma between 1995-2021. Clinical, biochemical, genetic, imaging and histological data were collected. In addition, follow-up and family data were obtained.<p class="abste...

Acrodysostosis (ACRDYS) (MIM 101800) is a rare autosomal dominant condition affecting skeletal growth and resulting in primary skeletal dysplasia. Two types of ACRDYS have been described and characterized by distinct references on OMIM database. ACRDYS is similar and often confused with PHP1A, but caused by mutations downstream of the genes involved in PHP1A. Most of the patients have de novo variants. Both types of ACRDYS present with similar skeletal abnormalities (dispropor...