ESPE Abstracts

Objective: To enhance the understanding of the clinical phenotypes of patients with SOX2 gene mutations.Method: A retrospectively analysis of the clinical manifestations and the laboratory results of a child diagnosed as idiopathic hypogonadotropic hypogonadism(IHH) by whole exome-gene sequencing and a review of relevant literatures.Results: A 12-year-old boy clinically manifested short stature, mental retardation, a histo...

Quantitative analysis of endogenous and exogenous steroid hormones is an important step for our understanding of the causes of endocrine disorders in pediatric. In this study, we developed a method to simultaneously quantify endogenous and exogenous steroids in pediatric urine and plasma. Ultra-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to simultaneously quantify steroid hormones in children plasma and urine. Under the optimum conditions, th...

Background: The incidence rate of maturity onset diabetes of the young (MODY) and the proportion of different types of MODY will be different in different countries and races. GCK, HNF1A, and HNF4A are the three most common types of MODY, but the occurrence of other rare MODY subtypes in Chinese children is unknown. Therefore, studying the case group of MODY in Chinese children can help deepen understanding of MODY, early identification, and precise treatment....

Background: Bardet Biedl syndrome(BBS) is a type of non-motile ciliopathy primarily characterized by retinal dystrophy, obesity, polydactyly, cognitive impairment, urogenital anomalies and renal abnormalities. To date, 26 genes have been reported to be associated with BBS: BBS1-BBS21, IFT74, SCLT1, SCAPER and NPHP1. BBS is genetically heterogeneous with significant clinical overlap with other ciliopathies, further c...

Background: Noonan syndrome (NS) is a common autosomal dominant/recessive disorder. No large-scale study has been conducted on NS in China, which is the most populous country in the world.Methods: Next-generation sequencing (NGS) was used to identify pathogenic variants in patients that exhibited NS-related phenotypes. We assessed the facial features and clinical manifestations of patients with pathogenic or likely patho...

Context: Diagnosis of non-chromosomal type disorders of sex development (DSD) has long been challenging. There is still no research on overview of a large Chinese DSD cohort.Objective: To determine the etiologic diagnosis through unbiased large-scale panel sequencing and whole-exome sequencing (WES) within a large Chinese DSD cohort.Design: Patients were recruited according to the ...

Background: 5α - reductase type 2 deficiency (5αRD) is an autosomal recessive hereditary disease which has an incidence of 11.2%–15.5% among population with 46, XY DSD (disorders of sex development).Objective: To study the growth pattern in Chinese pediatric patients with 5αRD.Subjects: Data were from 187 patients with 5αRD (age from 0–16 years old,with homozygous or compound heterozygous mutations in ...

Background: Primary ciliary dyskinesia (PCD) is a type of ciliary dyskinesia that is usually caused by autosomal recessive inheritance and can manifest as recurrent respiratory infections, bronchiectasis, infertility, laterality defects, and chronic otolaryngological disease. Although ependymal cilia, which affect the flow of cerebrospinal fluid in the central nervous system, have much in common with respiratory cilia in terms of structure and function, hydroc...

Background: The combination of Turner syndrome (TS) and congenital adrenal hyperplasia (CAH) caused by 21-hydroxylase deficiency is rare. These two diseases affect children’s growth and development through different endocrine hormone metabolic dysfunction.Case presentation: A patient suffering from ambiguous genitalia was referred to our hospital when she was 2 months old. Her length was 58 cm (+0.9 standard deviation, SD) and weigh...

Keywords: Primary ovarian insufficiency; Microsomal maintenance complex 8; Cell apoptosis; Cell cycle; PI3K/AKTBackground: Primary ovarian insufficiency (POI) with a chromosome karyotype of 46,XX in children, compared to adults, is difficult to diagnose and often seek medical attention due to delayed puberty or short stature. We have reported the two novel pathogenic mutations p.C242R and p.S445*of MCM8 gene in a pedigre...