ESPE Abstracts

Background: Disorders of sex development (DSD) vary phenotypically and are caused by a number of genetic etiologies. Although several genetic abnormalities have been discovered through genetic analyses, the underlying genetic causes of 46, XY DSD remain unknown in most of the casesAim: To identify genetic defects in patients with 46,XY DSD.Material and Methods: A total 76 DSD patie...

Patients with Disorders of sex development (DSD) can present with a large phenotypic spectrum and caused by a number of different genetic defects. Therefore, it is difficult to reach a specific diagnosis using traditional approaches including biochemical analysis and single gene sequencing in a number of patients with DSD. Recently, next-generation sequencing technologies have revolutionized the identification of causative genes with diseases with genetic heterogeneity using m...

Background: To explore the reason of children on the 46,XY DSD.Objective and hypotheses: To analyze the clinical characteristics, diagnosis and management of a case with steroid 5α-reductase type 2 deficiency (SRD5A2) and perform related gene mutation analysis with a view to raising awareness of this disease.Method: A 2 year old 5 months child came with abnomal vulval shape. Karyotype was analyzed by chromosome cultivation. Gn...

Background: Extensive and time-consuming hormonal and genetic work-up provides a genetic diagnosis in around 20% of 46,XY cases with ambiguous genitalia. It is currently unclear if such extensive screening might also be indicated in 46,XY newborns with milder undervirilization.Method: All 46,XY neonates and infants (n=32, EMS 2–12) referred to our pediatric endocrine service for atypical male genitalia in the period 2007–2013 were inve...

Background: Hypophosphatemic rickets (HR) is most commonly X-linked or autosomal dominant, but autosomal recessive (AR) forms have been described. ARHR1 (DMP1) and ARHR2 (ENPP1) share identical biochemical characteristics of excessive renal phosphate wasting due to increased circulating levels of the phosphatonin FGF23 and low serum levels of 1,25(OH)2D. By contrast, in hereditary hypophosphatemic rickets with hypercalciuria (HHRH) phosphaturia is ...

Background: Severe forms of 46,XY DSD with uncertain sex may have a family history (FH) in ~15–20% of cases. On the other side of the DSD spectrum, data regarding isolated hypospadias is sparse and a FH of genital malformation is thought to be less frequent.Objective and hypotheses: The aims of the study were i) to determine the frequency of genital abnormalities in families of isolated hypospadiac boys, ii) to determine whether there is a particula...

Background and Aims: Disorders of sex development (DSD) are a group of rare congenital conditions. Clinical management of patients with DSD is often difficult and requires multidisciplinary approach.Material and methods: Twenty-eight patients aged 1 to 18 years with different forms of 46, XY DSD were included. The subjects have undergone a clinical examination, karyotype analysis followed by the next generation sequencing (NGS) using MiS...

Background: There is a distinct increase in the prevalence of depression with the onset of puberty. The role of peripubertal testosterone levels in boys in this context is insufficiently understood. Moreover, the number of CAG repeats of the androgen receptor gene (AR) and the depression status (subclinical vs. overt depression) may modulate the role of testosterone, but this has not yet been studied in a clinical sample.Methods:...

Hyponatremia is a common electrolytes disorder in children. It can result from sodium chloride losses through GI, the kidneys, or in the sweat. Sodium chloride loss in the sweat can be caused by many different etiologies as cystic fibrosis, malnutrition, metabolic diseases, dermatological diseases and endocrine diseases. We are reporting a 6 months old boy, medically free, who had recurrent admissions to the PICU as a case of hyponatremic dehydration, with a sodium level of 11...

This study represents the first documentation of the coexistence of complete androgen insensitivity syndrome (CAIS) with Müllerian duct remnants (MDRs) in mainland China. Additionally, we provide a comprehensive review of the existing literature concerning CAIS with MDRs resulting from androgen receptor (AR) gene mutations. This study broadens the clinical spectrum of CAIS and offer novel insights for further exploration into Müllerian duct regression. A 14-...