ESPE Abstracts

Background: 5α-Reductase is an enzyme that converts testosterone to dihydrotestosterone (DHT) in peripheral tissues. DHT is responsible for the differentiation of male external genitalia. Mutations in the 5α-steroid reductase type 2 gene (SRD5A2) result in incomplete masculinisation of the external genitalia in subjects with a 46,XY karyotype. The clinical spectrum of a 46,XY individual with 5α-reductase deficiency at birth can range from complete femal...

Background: The steroidogenic acute regulatory protein (StAR) has been shown to be essential for steroidogenesis by mediating cholesterol transfer into mitochondria. Inactivating StAR mutations cause the typical clinical picture of congenital lipoid adrenal hyperplasia.Objective and hypotheses: We aimed to identify causative mutations in cases presenting with adrenal failure during early infancy.Method: Consecutive cases with adren...

Background: Cushing’s syndrome in children and adolescents is rare. Its clinical and biological symptoms are severe with a significant impact on growth and puberty and poor prognosis.Objective and hypotheses: Report clinical, etiological and evolutionary characteristics of Cushing’s syndrome in children and adolescents.Method: This is a retrospective study of 45 children and adolescents with Cushing’s syndrome hospit...

Introduction: X-linked adrenal hypoplasia congenita (AHC) is caused by mutations of the NR0B1 gene encoding DAX1 on chromosome Xp21. AHC also occurs as part of a contiguous gene deletion syndrome together with Duchenne muscular dystrophy, glycerol kinase deficiency (GKD), mental retardation, or a combination of these conditions. Here, we report a male 5 years old with AHC who presented with adrenal insufficiency, GKD, and duchenne muscular dystrophy due to a mutation in the DA...

Background: Dysfunction of the parathyroid gland is a rare cause of hypocalcaemia. It may be caused by a deficiency or resistance to PTH. Generally symptomatic It can be hereditary, congenital or acquired.Objective and hypotheses: Analysis of clinical, paraclinical, etiological and progressive children’s and adolescents hypocalcaemia by parathyroid dysfunction.Method: This is a retrospective study of hypocalcaemia by parathyro...

Background: The commonest cause of 46, XX disorders of sex development (DSD) is congenital adrenal hyperplasia (CAH). We report two female virilised siblings with uncontrolled CAH who were reared as boys since birth. Different team members were involved in management. We discuss here gender reassignment and the psychosocial implications from Islamic perspectives.Case reports: An eight and 11 years old severely virilised CAH Yemeni girls were raised as bo...

Background: The hyperandrogenism in the teenager is a frequent reason for consultation. It poses diagnostic problems and sometimes therapeutic ones.Objective and hypotheses: Search of the incidence and aetiology of hyperandrogenism in children and adolescent.Method: This is a retrospective study of patients hospitalized for exploration of hyperandrogenism. 14 patients was for collected, all underwent to a profound clinical examinat...

Background: Glucose is the main energy source for the brain’s cells. Glucose transporter 1 (GLUT1), encoded by the SLC2A1 gene, is a membrane protein that plays an essential role in the transport of glucose across the blood-brain barrier. A mutation in GLUT1, so-called GLUT1 deficiency syndrome (GLUT1 DS; OMIM #606777), results in low levels of glucose in the cerebrospinal fluid despite normoglycaemia. GLUT1 deficiency causes a series of symptoms that ma...

Background: Delayed puberty in girls is evoked at the absence of breast development after the age of 13 years. It is relatively rare and must look contrary to the boy an organic cause.Objective and hypotheses: Search the frequency and aetiology of delayed puberty in girls.Method: This is a retrospective study of patients consulting for delayed puberty and collected in 5 years. The of patients was compared to the number of delayed p...

Background: The thyroid disorders in children and adolescents are varied. They are dominated by frequent malignant tumour lesions and goitres represented by Graves’ disease and Hashimoto’s thyroiditis in adolescence. They are characterized by several clinical forms.Objective and hypotheses: To study the clinical and aetiological characteristics of thyroid disease in children and adolescents.Method: This is a retrospective...