ESPE Abstracts

Introduction: Excessive exposure of children to electronic devices is related to an increased risk for diabetes and obesity and greater chance of developing visual and cognitive disorders.Objective: To understand the time spent with screens (cell phone, tablet, computer, and television) by children under 5 years old in Goiânia-Goiás-Brazil and analyze the consequent impacts of this habit and parental positio...

Background: Mixed gonadal dysgenesis (MGD) is a heterogeneous group of gonadal, chromosomal and phenotypic abnormalities. The diagnosis is based on the presence of testicular tissue and streak.Objective and hypotheses: Casuistics description of patients with MGD in our hospital.Method: A retrospective analysis of medical records.Results: We studied 15 patients. The age at first visit ranged from two weeks to ...

Hypophosphatasia (HPP) is a rare, inherited, systemic disease caused by mutation(s) of the ALPL gene encoding tissue-nonspecific alkaline phosphatase (ALP), resulting in deficient ALP activity. Asfotase alfa is an enzyme replacement therapy approved for treatment of patients with pediatric-onset HPP. The global HPP Registry is an observational, prospective, multinational study (NCT02306720; EUPAS13514) established to collect real world clinical data from patients of a...

Background: Androgen Insensitivity Syndrome is a common form of 46,XY DSD. In the literature, 85–90% of patients with complete form of Androgen Insensitivity (CAIS) and 30% of patients with parcial form (PAIS) have the AR gene mutation identified, In most cases are found a missense mutation with aminoacid change. Mutations without aminoacid changes (silent mutations) are rarely related to human diseases and have never been identified in patients with CAIS.<p class="ab...

Background: A virus initially considered benign in this age group, SARS-COV-2 has recently been associated with Pediatric Multisystemic Inflammatory Syndrome (PIMS), temporarily associated with COVID-19, a syndrome whose diagnostic determination has a vital relevance since it imposes unfavorable outcomes. This study aims to describe the sociodemographic characteristics of PIMS in Brazil and the factors associated with death by this syndrome.<p class="abste...

Introduction: X-linked hypophosphatemic rickets (XLH) is characterized by a mineralization disorder in the growth plate and cortical and trabecular bones, resulting in bone deformities with anthropometric changes and potential alterations in body composition.Objective: To evaluate the body composition of 12 children and adolescents with XLH compared to healthy controls by anthropometric and densitometry data.<p class...

Introduction: Hypochondroplasia (HCH) is a form of mild dwarfism caused by heterozygous gain-of-function mutations in the fibroblast growth factor receptor 3 (FGFR3). FGFR3 is a negative regulator of endochondral bone growth, and individuals with HCH typically exhibit characteristics such as disproportionate short stature with shortening limb length, lumbar lordosis, and macrocephaly. Regarding recombinant human growth hormone (rhGH) therapy in children with H...

Neonatal screening tests are used for the screening of genetic, endocrine and metabolic diseases. Preterm newborns have a higher false-positive and false-negative results in neonatal screening. The objective of this study was to estimate the prevalence of false-positive and false-negative results in the neonatal screening tests for phenylketonuria, congenital hypothyroidism, biotinidase deficiency and congenital adrenal hyperplasia (CAH) in preterm newborns in Curitiba, to ana...

Background: A portion of 160 kb on Xp21.2 is defined as dosage sensitive sex reversal, including NR0B1, which is considered the most likely candidate gene involved in XY gonadal dysgenesis if overexpressed. The excess of NR0B1 gene product seems to disturb testicular development by down regulating NR5A1, WT1, and SOX9. Xp duplication causes insufficient SRY expression leading to testis development failure. However, NR0B1 si...

Introduction: Generally, patients with X-linked hypophosphatemic rickets (XLH) experience normal puberty. However, they can be affected by metabolic and environmental factors that may predispose them to central precocious puberty (CPP) and impair their predicted final height, similar to the general population.Case Report: A female patient was diagnosed with XLH at three and received regular treatment with calcitriol and ...