ESPE Abstracts

Background: For many years, raising awareness on early referral to endocrinologist, early diagnosis, and treatment continuation for paediatric patients with growth hormone deficiency (GHD) has been continued in Japan. However, the current status of trends in age at diagnosis and of treatment continuation have not been fully clarified.Aim: The aim of this study is to estimate the persistence to growth hormone treatment (G...

Background: Aromatase excess syndrome (AEXS) (OMIM 139300) is a rare condition characterized with gynecomastia in boys and macromastia in girls. Estrogen excess in boys can lead to prepubertal and pubertal gynecomastia, bone age progression and short adult stature. While most of girls are usually asymptomatic, there are few reported female patients with excessive breast growth, early puberty, menstrual irregularities, and short adult stature. Male and female children with AEXS...

Introduction: Premature ovarian failure (POF) is defined as ovarian failure developing before the age of 40. The etiology of genetic POF is quite heterogeneous and can be due to genetic, autoimmune, environmental, viral infections or iatrogenic causes.Objective: The aim of this study is to investigate the molecular genetic causes of non-syndromic POF cases with the gene panel based on next generation sequence analysis an...

Objective: To explore the clinical features and the genetic cause of a multiple malformation patient with short stature.Methods: The clinical data was collected in Beijing Children’s Hospital in November 2017. The disease-causing variant was identified using exome sequencing and confirmed with Sanger sequencing. Related literature was searched from Wanfang and Pubmed databases using the key word of ‘PORCN gene’ to identify the clinical fea...

Background: Progressive familial intrahepatic cholestasis (PFIC) is an autosomal recessive diseases.Objective and hypotheses: To explore the characterization of ATP8B1, ABCB11 and ABCB4 gene mutational spectrum in children from South China.Method: By using PCR combined with direct DNA sequencing for 32 patients.Results: Six patients were diagnosed as PFIC.Conclusion: Six novel mutations...

Introduction: Genetic alterations within the cAMP/PKA pathway, including the genes GNAS, PDE11A, PDE8, PRKAR1A/B, and PRKACA, result in a spectrum of adrenocortical disorders. To date, somatic PRKACA variants and germline PRKACA copy number gain have been associated with the development of cortisol-secreting adrenocortical adenomas and bilateral adrenal hyperplasia, respectively. While variants within the PRKAR1A ge...

Background: Genomic imprinting is the process by which preferential methylation of one parental allele results in parent of origin specific expression of particular genes. Methylation is established during gametogenesis and is maintained throughout development. Alterations in any of the processes in the establishment and maintenance of methylation can lead to aberrant imprinting, which can result in either reactivation of the original silent allele or the sile...

Background: X-linked congenital adrenal hypoplasia (adrenal hypoplasia congenita, AHC) is a rare life-threating disorder due to pathogenic variants in the NR0B1 gene. It encodes DAX-1, an orphan nuclear hormone receptor, that acts as a transcription factor and is expressed in the adrenals and hypothalamus-pituitary-gonadal (HPG) axis. Therefore, apart from primary adrenal insufficiency, patients present incomplete or absent puberty and infertility due...

Background: Severe primary insulin-growth factor-1 (IGF1) deficiency (SPIGF1D) is a rare cause of short stature. Diagnosis is based on low basal IGF1 concentration, short stature, normal or elevated growth hormone concentrations and absence of any secondary causes of growth failure. Thanks to advances in next-generation sequencing (NGS) technologies, genetic etiology of SPIGF1D is expanding.Objectives: • Identify th...

Introduction: Autoimmune Polyglandular Syndrome Type I (APS1) is a rare condition caused by mutations in the AIRE gene (autoimmune regulator). The diagnosis is challenging and delayed due to its non-specific clinical manifestations such as candidiasis, hypoparathyroidism and hypoadrenalism. More than a hundred mutations of this gene have been described and hereby we present a girl who was found to have a novel mutation of AIRE gene with patho...