ESPE Abstracts

Background: A basal 17-hydroxyprogesterone (17-OHP) plasma level of 6.0 nmol/l was suggested as a threshold for the diagnosis of non-classical congenital adrenal hyperplasia (NCCAH), particularly in children presenting with precocious pubarche (PP).Objective: The present study aimed to determine if this threshold could lead to underdiagnosis of NCCAH.Method: In a retrospective study the cohort of pediatric patients (n=145,...

Background: Hypoglycemia etiology in children is heterogeneous and varies by age. Both growth hormone (GH) and cortisol deficiencies may present with hypoglycemia; the latter may result in an adrenal crisis that may be fatal.Objectives: To evaluate responses of cortisol and GH to spontaneous hypoglycemia in infants and children, and to assess the rate of true cortisol deficiency in children, defined as cortisol<500 nm...

Background: Spatial navigation is an essential human skill that helps individuals track their changes in position and orientation by integrating self-motion cues. Meta-analyses indicate that males, on average, perform better than females on a number of spatial tasks. Sex steroids, mainly androgens, modulate the remodeling of synapses in the prefrontal cortex and hippocampus, a limbic brain area with critical influence on spatial and contextual memory. Androgen...

Background: Data on the course of puberty and pubertal growth in boys with Type 1 diabetes (T1D) are sparse.Objectives: To study the course of puberty, pubertal growth and final height in boys with T1D as well as possible factors affecting these.Methods: In this retrospective longitudinal study, 68 boys diagnosed with T1D between 1996-2009 who were pre-pubertal at diagnosis and had...

Background: In 2017, the Endocrine Society published guidelines for the endocrine treatment of gender dysphoria/ gender incongruence. Adolescents who meet diagnostic criteria for gender dysphoria undergo pubertal suppression using gonadotropin-releasing hormone analogs (GnRHa) and induction of puberty with gender-affirming hormonal therapy. Blood pressure (BP) monitoring prior to and during treatment with GnRHa in transgender adolescents is recommended. This r...

Background: Thyroid hormone resistance (THR) is a rare genetic disorder that may be caused by thyroid hormone (TH) cell transporter defects or metabolism defects, but most cases are caused by an inherited mutation in the TH receptor beta (THRB) gene. The reduced responsiveness of target tissues to TH is characterized by elevated TH and a normal or elevated thyroid-stimulating hormone (TSH) level. Differentiating between THR and TSH-producing pituitary...

Background: Gonadotropin-releasing hormone (GNRH) and its receptor (GNRHR) are central regulators of puberty. Loss-of-function mutations of the GNRH-GNRHR signaling pathway are associated with congenital hypogonadotropic hypogonadism, but no mutations were reported so far in patients with central precocious puberty (CPP). Animal data demonstrate the importance of microRNAs in pubertal timing regulation. Among others, miR200b regulates Gnrh1 gene expression in GnRH neu...

Background: Increased risk of obesity and cardio-metabolic risk factors were reported in patients with classical congenital adrenal hyperplasia but little is known about adiposity among patients with non-classical congenital adrenal hyperplasia (NCCAH).Aim: To assess the prevalence of overweight, obesity and cardio-metabolic risk factors among NCCAH patients. Methods: A cross-sectional retrospective study of 114 NCCAH patients (93 ...

Background: Data on anthropometric outcomes in patients with non-classical 21-hydroxylase deficiency (NCCAH) are sparse.Objective: To investigate long-term effects of NCCAH on height and weight.Method: A retrospective, cross-sectional study of 105 girls with NCCAH aged 8.4±4.1 years (0.4–18), mean follow-up 11.4±7.5 years. Outcome measures were height, weight and BMI, expressed as standard deviation score (SDS), at d...

Context: Central precocious puberty (CPP), treated or untreated, may have clinical implications in adulthood.Objective: To assess the general health status and metabolic outcome of former CPP women between the third and fifth decades of life.Design: Case–control study of an historical cohort using the computerized database of a health management organization.Participants: Study group – 148 CPP women...