ESPE Abstracts

Background: The association of intrauterine growth restriction (IUGR), adrenal insufficiency and gonadal dysgenesis is well recognised. Some children have been reported to develop monosomy 7 and myelodysplasia. However, the genetic basis of this condition was poorly understood.Objective and hypotheses: Our aim was to investigate the genetic basis of eight children with IUGR, adrenal insufficiency and gonadal failure and additional features including seve...

Background: Primary adrenal insufficiency (PAI) is most commonly congenital in children. PAI is genetically heterogeneous with some gene defects causing syndromic disease. A third of patients have no genetic diagnosis meaning their prognosis is uncertain. We recently investigated families with a novel combination of PAI and steroid resistant nephrotic syndrome.Objective and hypotheses: To discover the genetic defect underlying this syndrome.<p class=...

Innervation of the hypothalamic median eminence by Gonadotropin-Releasing Hormone (GnRH) neurons is vital to ensure puberty onset and successful reproduction. However, the molecular and cellular mechanisms underlying median eminence development and pubertal timing are incompletely understood. Here we show that Semaphorin-6A is strongly expressed by median eminence-resident oligodendrocytes positioned adjacent to GnRH neuron projections and fenestrated capillaries, and that Sem...

Introduction: The human adrenal gland originates from the adrenogonadal primordium at around 4 weeks post conception (wpc) and undergoes marked developmental changes throughout the first half of pregnancy. Several key aspects of adrenal maturation are well-established, such as the formation of a large inner fetal zone (FZ) and synthesis of dehydroepiandrosterone, but many other processes contributing to adrenal gland development and function in humans are stil...

Introduction: Ovary development was once considered a largely passive process. RNA sequencing (RNAseq) approaches have allowed us to begin to characterise ovary development in previously unparalleled detail, revealing the process to be complex and, still, little understood. A challenge is synthesising and using these data to advance our understanding of clinical disease. Through a clinically-focused lens, we elucidate novel aspects of the transcriptional lands...

Cause: The Colombian Society of Urology published in May 1993; A Modern Approach to Sexual Ambiguity Syndromes which discuses sexual differentiation and sexual disorders associated with sexual development to determine a binary gender with surgical reconstruction.Objective: Gather the members of ACEP (Colombian Association for Pediatric Endocrinology) to clarify, update and create an approach of human sexuality from a biosociocultural pe...

Introduction: Salt wasting is a potentially life-threatening condition in the newborn period. Other than 21 OH-CAH other rarer adrenal causes should be considered in the differential diagnosisObjective: To report the laboratory, clinical features, management and genotype of a series of consecutive patients who showed up at our Center for a salt wasting syndrome in the last 32 years, excluding patients with 21 OH CAH....

Introduction: in females with precocious thelarche (PT) (< 8 years), elevation of morning luteinizing hormone levels (mLH) may be indicative of pubertal activation of the pituitary gonadal axis. However, this approach could not be satisfactory in real life management of PT due to the risk of reduced specificity and sensitivity of the mLH thresholds. We propose a diagnostic flow-chart based on basal and stimulated gonadotrophins integrated with bone age and ...

We present the case of a 11-years-old girl who came to our attention for a first critical episode lasting a few minutes, with spontaneous resolution, described as a generalized clonic tonic crisis, which occurred in full well-being. An electroencephalogram (EEG) was performed which showed focal epileptiform anomalies in the right temporal center that spread evoked by hyperpnea and eye closure and an EEG after sleep deprivation that showed an accentuation of the anomalies in ph...

Introduction: The gonadotropin releasing hormone stimulation test (GnRHST) is commonly used to screen CPP. Some recent studies reported that morning unstimulated luteinizing hormone levels may be sufficient to discriminate pubertal from prepubertal children. The aim of this study is to evaluate the clinical efficacy of mLH to screen CPP in femalesPatients and Methods: We retrospectively studied the clinical and hormonal ...