ESPE Abstracts

Introduction: In obese boys, alteration of Sertoli and Leydig cell functions have been described, but potential reversibility of these alterations after weight loss during childhood has not been fully evaluated.Objective: Evaluate the impact of weight loss on gonadic function in obese boys.Setting: Monocentric study in the Pediatric Endocrinology Unit of Angers University Hospital ant its follow-up...

21-hydroxylase deficiency (21OHD) is the most common form of congenital adrenal hyperplasia (CAH) and is caused by mutations in the CYP21A2 gene. 21OHD causes a wide array of clinical symptoms that result from gluco- and mineralocorticoid deficiency and adrenal androgen excess. In most cases, supra-physiological glucocorticoid doses are necessary which may cause short stature, obesity, hypertension, cardiovascular and metabolic co-morbidity with reduced quality of lif...

Background: Inherited amino-acid metabolism disorders (IAAMDs) require lifelong restriction of natural dietary proteins. Nutritional amino-acid mixtures (AMM) free of the poorly metabolised amino-acids by the enzyme block, improve nutrition. An adequate protein intake is crucial to ensure normal body development, notably during puberty. We aimed to: 1/ describe growth and puberty in IAAMDs 2/ investigate associations linking height, IGF1 and IGFBP3 with AAM an...

Introduction: Primary brain tumors are the second most common childhood malignancies, with an increasing survival rate over the years. Late effects on puberty and fertility alter survivors’ quality of life.Methods: We included 204 patients diagnosed with a primary brain tumor before 18 years, followed in pediatric endocrinology at the University Hospital “Necker-Enfants Malades” in Paris between January 20...

Background: Primary adrenal insufficiency (PAI) is characterised by the immune destruction of the adrenal cortex and leads to impaired production of the adrenal hormones. It is a potentially life-threatening condition that can be managed if identified early. The onset is insidious and often difficult to diagnose. Screening for adrenal autoantibodies is routinely performed in autoimmune conditions such as type 1 diabetes mellitus (T1DM). The guidance around the...

Introduction: Fractures have been recorded in up to one third of children who have suffered from physical abuse. The British Paediatric and Adolescent Bone Group (BPABG) position statement on vitamin D states that the level of 25 hydroxyvitamin D is not relevant to causation of fractures unless there is radiological or biochemical evidence of rickets. Clinicians are often asked in the court setting about the relevance of abnormal serum investigations in children who have fract...

Background: A quarter of young adults with cystic fibrosis (CF) may have osteoporosis. However, children with CF do not seem to have an increased risk of fractures.Objective: We aimed to examine the factors that may determine longitudinal changes in bone mineralisation in children with CF.Method: 101 children (51 females) had DXA performed and the data were expressed as expected bone mineral content for bone area SDS (BMCSDS). Of t...

Background: Bisphosphonate therapy (BPT) reduces osteoclast activity and may be associated with adynamic bone turnover. The extent of suppression of bone turnover and its determinants are unclear.Method: Markers of bone metabolism were evaluated in 15 children (9M/6F) undergoing BPT for osteoporosis. The median age at first biochemical assessment was 10.8 years (0.16, 16.3). Serum type I collagen cross-linked C-telopeptide (CTX), alkaline phosphatase (AL...

Background: The predictive value of a random cortisol measurement in the neonatal population with suspected adrenal insufficiency is unknown.Objective and hypotheses: i) determine the indications for measuring cortisol; ii) review subsequent management; and iii) establish predictors for adrenal insufficiency.Method: A laboratory database search identified cortisol results in babies <1 year from three neonatal units between Sept...

Background: With improvements in assays and an increasing need for non-invasive out-patient based investigations, there is a renewed interest in the use of urinary gonadotrophins (uGn) for assessing pubertal progress.Objective and hypotheses: This study aims to establish the correlation between serum and urinary LH and FSH in patients with pubertal concerns.Method: 36 boys and girls aged 14.9 years (range 7.8–17.3) and 9.5 yea...