ESPE Abstracts

Background: Disorders of sex development (DSD) are those congenital conditions in which development of chromosomal, gonadal, or anatomical sex is atypical. 45,X/46,XY mosaicism results in a large clinical spectrum of DSD including from female patients with Turner’s syndrome to normal appearing males.Objective and hypotheses: The main aim of this study is to review the clinical and gonad histological findings in a cohort of chromosomal DSD patients f...

Background: Life expectancy of children with human immunodeficiency virus (HIV) has increased due to highly active antiretroviral therapy. Metabolic disorders and changes in bone mineral density (BMD) are common in adult patients with HIV. There are few studies evaluating metabolic and bone involvement in children.Objective and hypotheses: To evaluate metabolic disorders and BMD in vertically HIV-infected children in four Chilean hospitals.<p class="...

Background: Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders characterised by impaired cortisol synthesis. An enzymatic defect in 11-beta-hydroxylase is the second most common variant of CAH and accounts for approximately 5–8% of cases. Patients present with features of androgen excess and approximately two thirds of patients also have high blood pressure (HBP), which is initially responsive to glucocorticoid replacement, but may become a c...

Background: Androgen insensitivity syndrome (AIS) is an X-linked hereditary disease with AR gene loss-of-function mutations in 46,XY patients. They undergoes poor development of secondary sex characteristics, except for breast development at puberty. AIS patients are prone to develop germ cell cancer, even though with lower incidence than in dysgenetic gonads secondary to defects in organogenesis.Case presentation: We described a 3-years-old gir...

Background: More than two thirds of teenagers with childhood-onset GH deficiency (CO-GHD) documented normal GH response when retested at final height.Objective and hypotheses: To identify potential predictors for persistent GHD after reaching final height under rhGH with a particular accent on children with isolated GHD (IGHD).Method: Prospective study: reevaluation CO-GHD in the transition period; cohort of 27 CO-GHD patient who r...

Introduction: ABCD syndrome is characterized by hypercalcemia, hypercalciuria, nephrocalcinosis, and renal impairment, generally under 4 years old. This is a rare cause of pediatric hypercalcemia with only 7 cases published, but it is believed to be underdiagnosed. The suspected mechanism would be associated with overexpression of transient receptor potential channels (TRP) that modulate intestinal absorption of calcium, since TRP-M2 is encoded on chromosome 2...

Background: Insulin degludec/insulin aspart (IDegAsp) is the first soluble co-formulation that combines two insulin analogues.Aims and objectives: To assess the efficacy and safety of IDegAsp administered once-daily (OD) plus meal-time IAsp for remaining meals in controlling glycaemia as assessed by change in HbA1c from baseline in a paediatric population.Methods: A 16-week, 1:1, open-label, parallel group, randomised, t...

Background and Aims: HNF4A-MODY clinical expression is broad, ranging from hypoglycemic hyperinsulinism in the neonatal period and early childhood to hyperglycemia and diabetes, as insulin secretion progressively decreases in adult patients. The main objective was to clinically and molecularly characterize patients with glycemic alterations, negative autoimmunity and confirmed molecular diagnosis of HNF4A-MODY.Materials and Metho...

Disorders/differences in sex development (DSD) are defined as congenital conditions in which development of chromosomal, gonadal or anatomical sex is atypical. 46,XY DSD include defects in androgen synthesis or action or complete (CGD)/partial (PGD) gonadal dysgenesis. The aim of this study was to characterize the molecular genetic diagnosis of individuals with 46,XY DSD followed at Garrahan Pediatric Hospital.Medical records of 140 patients (P) followed...

Sex chromosome disorders, including sex chromosome mosaicism, result in a large clinical spectrum. There is scarce information about the histological pattern of these gonads.Aim: to characterize the histology and cell markers pattern in gonads of patients with chromosomal mosaicism.Gonadal biopsies from thirteen patients with chromosomal mosaicism, including chromosome Y were studied. Six were rearing as male and s...