ESPE Abstracts

Background: The C3 epimer of 25-hydroxi-vitamin D3 (Epi25OHD3) is present in the pediatric and adult population and varies according to age. If it measurement is clinically relevant and should be considered to classify Vitamin D status is still unknown.Objective: To measure 25OHD3, 25-hydroxy-Vitamin D2 (25OHD2) and Epi25OHD3 and to compare them with PTH and calcemia.Method: Subjects: Children between 5 and 8 years of age born very...

Introduction: Protein tyrosine phosphatase non-receptor type 22 (PTPN22) is a well-established genetic locus of type 1 diabetes (T1D). The aim of the present study is to compare the methylation level of PTPN22 between children and adolescents of Greek origin with T1D and healthy controls.Patients and Methods: Twenty T1D participants and 20 age-/gender-matched healthy youngsters were enrolled. DNA was extracted from white blood cells, the...

Background: Congenital adrenal hyperplasia (CAH) is a rare disorder of steroid synthesis. Patients have multiple health problems. Healthcare utilisation has not previously been assessed in the paediatric population with CAH.Objective and hypotheses: To assess healthcare resource use in patients in England with CAH.Method: The English Clinical Practice Research Datalink (CPRD) database is an observational and interventional research...

Background: The pathogenesis of type 1 diabetes (T1D) is multifactorial, caused by interaction of genetic, epigenetic and environmental factors that lead to the production of antibodies early on life and a gradual loss of insulin secretory capacity of the pancreas. The genetics and immunological characteristics of our T1D population have not been precisely identified.Objective and hypotheses: To compare biochemical, genetic and immunological features of ...

Background: The incidence of paediatric papillary thyroid cancer (PTC) is increasing.Objective and hypotheses: To describe the clinical and histopathologic features at diagnosis, and follow-up of paediatric patients with PTC at Children’s Hospital of Mexico in a 10 years period.Method: Comparative longitudinal study. We included 22 paediatric patients with histopathologic diagnosis of PTC between 2004–2014, divided into r...

Background: With the increase of overweight prevalence an increasing number of women develop gestational diabetes.Objective and hypotheses: We evaluated the growth of 6902 children of mothers with gestational diabetes. The secular trends in the prevalence of children with gestational diabetes in mothers was studied during 30 years.The material consisted of children born 1974 (n=1108), 1981 (n=977), 1991 (n</em...

Background: Multiple organ dysfunction occurs in mitochondrial diseases (MDs). MDs are sometimes difficult to diagnose, because patients have solitary and/or combination of various symptoms including short stature, diabetes, myopathy, and seizure. Since plasma levels of lactate and pyruvate are not always the perfect biomarker for MDs, there are many pseudo-mitochondrial patients who are suspect for MDs. Diagnosis for MDs often requires muscle biopsy, gene analysis, and measur...

Background: Obese children are often taller than non-obese ones before puberty. Reports on the GH/IGF system in obese children are not consistent and do not explain the increased height observed. Changes in IGF1 bioavailability/bioactivity have been claimed as a possible explanation, however, no data is available regarding the expression of the IGF type 1 receptor (IGF1R) gene.Objective and hypotheses: To study the expression of IGF1R gene in obese child...

Background: Obesity has in males been associated with reduced testosterone levels during and after puberty. However, the onset and progress of puberty into fertility in obese boys remain inadequately evaluated.Objective and hypotheses: We aimed to study testicular function at the end of pubertal development (15–24 years) in males with severe childhood-onset obesity (height-adjusted relative weight exceeding 160% before the age of 7 years).<p cla...

Background: Heterozygous GHR gene variants were found in 5–8% of idiopathic short stature (ISS) children. Frequent polymorphisms within GHR coding regions, but not intronic SNPs, have been investigated in ISS.Objectives: To characterize GHR gene variants in ISS children, and to test their influence on height and the peripheral GH/IGF1/IGFBPs system.Methods: GHR gene (coding/intronic flanking...