ESPE Abstracts

Background: It remains unclear whether specimen repeated freeze-thaw cycles can influence urinary lutenising hormone (LH) and follicular stimulating hormone (FSH) assayed by immunochemiluminometric assays (ICMA).Objective and hypotheses: To investigate the effect of specimen repeated freeze-thaw cycles on urinary LH and FSH determined by ICMA.Method: The first morning-voided urine was collected and divided two parts. One part was s...

Background: It remains unclear whether specimen pH can influence urinary LH and FSH assayed by immunochemiluminometric assays (ICMA).Objective and hypotheses: To investigate the effect of specimen pH on urinary LH and FSH assayed by ICMA.Method: The first morning-voided urine were collected and divided into 11 samples (each 100 ml). The urine pH was determined with a pH meter. Hydrochloric acid and sodium hydroxide were added to al...

Background: Adolescent hyperandrogenemia is prophase of polycystic ovary syndrome. Obesity is one important cause of hyperandrogenemia. Whether hyperandrogenemia has happened in obese children is need to explore.Aims and objectives: To investigate the levels of insulin and androgens in obese children, analysis the correlation between insulin resistance and androgens, and comparison on the differences of androgens levels between obese boys and girls, and ...

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 ...

Autosomal dominant pseudohypoparathyroidism type-Ib is characterized by renal parathyroid hormone resistance, with resultant hypocalcemia and hyperphosphatemia. This disorder is associated with an isolated loss of methylation at GNAS exon A/B and most patients carry maternal microdeletions in the neighboring STX16 gene. The shortest deletion overlap is a 1.2-kb region spanning STX16 exon 4 and thought to harbor a cis-acting element regulating GNAS A/B methylation. However, abl...

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...

Background: The correlation between free thyroid hormones and poor diabetic control in children with diabetic ketoacidosis (DKA) and the effects of thyroid hormone therapy on euthyroid sick syndrome (ESS) remain unclear.Objective and hypotheses: To investigate characteristics of ESS in children with DKA and the effects of thyroid hormone therapy on ESS. In children with DKA, free thyroid hormones may be associated with the severity of DKA and thyroid hor...

Background and objectives: Dyslipidemia especially hypercholesterolemia attracts much more attention recently. Given different management and treatment of multiple categories, precise diagnosis becomes increasingly important. However, studies in pediatric patients lacks around the world, especially in China. Consequently, this study was designed to confirm the molecular defect of persistent hypercholesterolemia with next-generation sequencing basing on a singl...

Background: Vitamin D-dependent rickets type 3 (VDDR3) is a rare autosomal dominant inheritance disease, which is caused by the gain-of-function mutation in CYP3A4 (c.902T>C p.Ile301Thr).Case Presentation: We report the case of a 32-month-old boy presented with discomfort of both knee-joints, poor mobility, and gait abnormality when running. Laboratory examinations revealed low concentrations of serum calcium, phospho...