ESPE Abstracts

Background: While many causes of 46,XY disorders of sex development (DSD) have been elucidated, the mechanisms leading to 46,XX testicular or ovotesticular DSD are poorly understood. It has been hypothesized that both conditions may represent a phenotypic spectrum and that they might be caused by (different) mutations in the same genes.Methods: Whole exome sequencing was used to identify the molecular cause in ten unrelated patients with 46,XX (ovo)testi...

Background: Kinase suppressor of Ras 2 (KSR2) gene codes for a scaffold protein modulating intracellular pathways that involve MEK/BRAF cascade and AMPK signaling. KSR2 plays an important role in energy balance regulation, and KSR2 mutations were reported to be associated with obesity and insulin resistance in mice and humans. In transfected cells, several KSR2 mutations lead to impaired fatty acid oxidation, which improved under met...

Background: In a large fraction of patients with clinically presumed Androgen Insensitivity Syndrome, no mutation of the Androgen Receptor gene can be detected. However, established Sanger sequencing techniques of the AR gene are often limited to the coding region.Objective and Hypotheses: To set up a next generation sequencing (NGS) approach of the entire AR locus (including UTRs, exons, introns, up- and downstream regions) for a comprehensive ...

Background: We have recently reported a BMI-SDS increase in girls with Turner syndrome (TS) treated with growth hormone (GH) (1).Objective and hypothesis: We hypothesise that puberty induction in TS is associated with weight gain.Method: We analysed the weight changes (BMI-SDS) of 888 girls with TS in the Pfizer International Growth Database (KIGS). Overweight was defined by a BMI >90th percentile and obesity by a BMI >97th...

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Obesity in childhood is associated to several cardiovascular risk factors summarized in the definition of metabolic syndrome such as hypertension, dyslipidemia and impaired glucose tolerance. Besides others, the pathogenetic background is insulin resistance, which deteriorates in mid puberty and normalizes at end of puberty. Accordingly, blood pressure, lipids, fasting glucose and 2 h glucose in oGTT increased from prepubertal stage to pubertal stage and decreased from puberta...

Type 2 diabetes mellitus (T2DM) is emerging as a new clinical problem within pediatric practice. Recent reports indicate an increasing prevalence of T2DM in children and adolescents around the world in all ethnicities, even if the prevalence of obesity is not increasing any more. There are great differences in T2DM prevalence worldwide. The majority of young people diagnosed with T2DM was found in specific ethnic subgroups such as African-American, Hispanic, Asian/Pacific Isla...

Adolescent obesity has an immense burden of disease and results in premature death due to several mechanisms: The classic cardiovascular risk factors associated with obesity, such as hypertension, dyslipidemia and type 2 diabetes mellitus, lead to cardiovascular diseases and consequently to premature death. Furthermore, adolescent obesity is associated with many life- limiting cancer types occurring 10 to 20 years later replacing smoking as the leading modifiable cause for can...

Background: The cardiovascular risk for children receiving treatment with GH has hardly been investigated. Therefore, we studied the relationships between GH treatment and carotid intima media-thickness (IMT), which is predictive for the cardiovascular diseases.Methods: We measured carotid IMT (four values) in 100 children (mean age 11.6±2.8 years, 63% male) treated with GH (GH deficiency 61%, SGA 31%, Turner syndrome 5%, SHOX deficiency 2%, Prader-...

Introduction: Maternal thyroid disease is considered as a risk factor for abnormal thyroid function at birth as well as for long-term morbidity in offspring. The potential harmful effects on the neonate had led to the clinical practice of thyroid function assessment in infants born to mothers with thyroid disease during pregnancy, despite well-established newborn screening programs with include congenital hypothyroidism screening. We evaluated the usefulness o...