ESPE Abstracts

Background/Aims: Schaaf-Yang syndrome (SYS) is a rare disorder caused by a truncating mutation in the gene MAGEL2, located in the Prader-Willi critical region on chromosome 15. SYS is characterized as a Prader-Willi-like (PWL) disorder, with neonatal hypotonia, feeding problems in early infancy and intellectual disability, obesity and behavioral problems throughout childhood. In this case report we describe a 15-year-old girl, receiving GH treatment since age ...

Background/aims: Temple syndrome (TS14) is an imprinting disorder caused by maternal uniparental disomy of chromosome 14 (UPD(14)mat), paternal deletion of 14q32 or by an isolated methylation defect. TS14 is considered a Prader-Willi-like (PWL) disorder and phenotypic features include pre- and postnatal growth retardation, hypotonia, feeding difficulties, precocious puberty, short stature and truncal obesity.Methods: Thi...

Background/aims: Prader-Willi syndrome (PWS) is a rare genetic syndrome, caused by the loss of expression of the paternal chromosome 15q11-q13 region. Over the past years, many cases of patients with characteristics similar to PWS, but without the typical genetic aberration of the 15q11-q13 region, have been described. These patients are often labelled as Prader-Willi-like (PWL). PWL is an as-yet poorly defined syndrome, potentially affecting a significant num...

Introduction: Prader-Willi syndrome (PWS) is a rare genetic disorder resulting from the lack of expression of the PWS region (locus q11-q13) on the paternally derived chromosome 15. Either a paternal deletion of the PWS region (50%), a maternal uniparental disomy (mUPD; 43%), an imprinting defect (4.1%) or translocation (<1%) can lead to PWS. Deletions are almost always de novo and manifest either as a large type I or a smaller type II deletion. In more rar...

Background/aims: Temple syndrome (TS14) is a rare imprinting disorder caused by maternal uniparental disomy of chromosome 14 (UPD(14)mat), paternal deletion of 14q32 or by an isolated methylation defect. TS14 is considered a Prader-Willi-like (PWL) disorder. Some patients with TS14 are treated with growth hormone (GH). However, evidence for the effectiveness of GH-treatment in patients with TS14 is very limited.Methods: ...

Introduction: Most patients with Prader-Willi syndrome (PWS) have a mild to moderate cognitive impairment. Growth hormone (GH) treatment has positive short- and long-term effects on cognition in children with PWS. Few studies, however, have investigated the effects of GH on cognitive functioning in adults with PWS.Objective: To investigate the effects of 3 years GH treatment on cognitive functioning in young adults with ...

Objectives: Current safety data do not indicate an association of GH therapy with increased risk for development/progression of tumours, or worsening of congenital cardiac conditions in individuals with Noonan syndrome (NS); however, data are limited. This report describes real-world safety data on GH therapy in paediatric patients with NS.Methods: Two complementary non-interventional, multicentre studies, NordiNet IOS (NCT00960128) and ANSWER Program (N...

Introduction: Knowledge of changes in bone-mineral metabolism in patients with inflammatory bowel disease (IBD) is of particular interest, since in many patients bone metabolic disease is an epiphenomenon of the underlying pathology. Impaired bone mineralisation and diminished spinal bone mineral density (BMD) are reported in children with IBD, together with increased incidence of vertebral fracture. The short- and long-term implications of reduced BMD are especially important...

Background: IGF1R gene mutations have been associated with varying degrees of intrauterine and postnatal growth retardation, and microcephaly. We have previously reported three novel variants in the IGF1R gene: de novo p.Arg1256Ser, de novo p.Asn359Tyr and p.Tyr865Cys (ENDO 2013, OR20-2).Aim: To characterize the functional effects of the novel IGF1R gene allelic variants.Methods: In ...

Background: Aortic dilation (AD) occurs in Turner syndrome (TS) increasing the risk of aortic dissection at all ages. There are no current guidelines on what specific aortic diameter measurement should provoke concern in pediatric TS. Because of their small stature, an aortic size index (ASI) has been proposed to normalize the ascending aorta (AA) to body size in young adults’ with TS. However, a more reliable index has been also proposed: the ratio of vascular diameter t...