ESPE Abstracts

Background: Growth is a complex process influenced by several genetic factors both pre and postnatal, in which 80% of the height variation is explained by genetic factors. Nevertheless, the standard medical evaluation of short stature (SS) relies upon physical examination and laboratory parameters and identifies a pathological cause of SS in 1–40% of individuals. Recent advances in genetic diagnosis are revolutionizing the clinician’s ability to obtain a molecular di...

McCune Albright syndrome (MAS) is rare with a prevalence of 1 in 100,000 to 1 in 1,000,000, characterized by the triad of monostotic/polyostotic fibrous dysplasia (FD), café au lait skin pigmentation, and hyperfunctioning endocrinopathies caused by somatic activating mutations of the GNAS1 gene encoding the α subunit of guanine nucleotide-binding protein. Here we are reporting three cases of MAS who are actively being followed up in a leading Children’s Hosp...

Background: The mitochondrial enzyme nicotinamide nucleotide transidrogenase (NNT) is essential in the antioxidant defense mechanisms and appears to be essential to the stages of adrenal steroidogenesis that occur inside the mitochondria.Aim: To characterize how mutations in NNT gene impair adrenal steroidogenesis resulting in familial glucocorticoid deficiency (FGD).Methods: Genom...

Background: Muscle is key to glucose metabolism. Myogenesis is completed in early infancy, partly under the inhibitory control of myostatin, a myokine whose actions can be influenced by follistatin. Early lowering of myostatin actions is thus a potential strategy to reduce the risk for later diabetes.Objective and hypotheses: We performed a first screening of whether such lowering is among the natural mechanisms whereby some human infants augment their l...

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...

Introduction: Adequate nutritional status of adolescents is essential for their healthy development, with health repercussions in both short-term and adult life.Objective: To analyze the temporal trends of the BMI of Brazilian adolescents (10 to 19 years old) between 2010 and 2022.Patients and methods: Descriptive ecological study. Data obtained from e-SUS Primary Care. The BMI cat...

Background: MODY is characterised by an early onset of diabetes and a positive family history of diabetes with an autosomal dominant mode of inheritance. We report a 15 year girl with a HNF1A mutation who presented with MODY without a positive family history.Objective and hypotheses: HNF1A-MODY is often misdiagnosed as type 1 or type 2 diabetes. Genetic confirmation of MODY in insulin-treated patients helps in making changes in the treatment modality as ...

Leydig cell tumors(LCTs) are rare testicular tumors, representing 1-3% of them. They are usually unilateral but can be bilateral up to 3%. Its incidence is bimodal, peaking at 5-10 years (20%) and 25-35 year (80%). Malignant transformation has not been clearly proven in children, whereas in adults they are malignant in 10% of cases. The main clinical manifestation is a palpable, painless testicular mass associated in a variable percentage with endocrinological manifestations t...

We recently assessed systolic heart function in children from IUGR and normal control pregnancies and reported early developmental impairment of left ventricular longitudinal strain – a sensitive echocardiographic measure – during the first 3 months of life in IUGR children. In accordance with previous studies, this suggest that the increased cardiovascular risk later in life imposed by IUGR/SGA may, at least to some extent, be primary and not entirely secondary to...

Background: Neonatal diabetes (ND) is a rare monogenic form of diabetes presenting within the first six months of life. The most frequent causes include mutations in KCNJ11, ABCC8 and insulin genes, but up to 40% of patients remain without a molecular genetic diagnosis.Case presentation: Case 1: a female newborn of non-consanguineous parents, born at 35 weeks, SGA. She presented with hyperglycemia at second day of life...