ESPE Abstracts

Background: Vitamin D adequate concentration is essential for growth, development and health during vital cycle. Hypovitaminosis D pandemic is associated with a wide range of pathologies.Objective and hypotheses: The objectives of the present study were to characterize vitamin D status in children and adolescents residing in Galicia (Northwest of Spain, latitude 43°N) and to determine if serum 25-hydroxy-vitamin D (25(OH)D) concentration is related ...

Background: Between the 6000 monogenic disorders, only few are due to a single mutation. Recently, a specific mutation has been described in TUBB3, encoding tubulin beta 3, in the association of Moebius syndrome (MS) and Kallmann syndrome (KS). MS is a congenital paralysis of eye and face’s muscles and can be caused by mutations of TUBB3. KS combines hypogonadotropic hypogonadism and anosmia.Objective and hypotheses: The combination of these two syn...

Background: A new classification of pseudohypoparathyroidism is available (Thiele et al. 2016, J Endocrinol). The phenotype variability of inactivating PTH/PTHrP Signaling Disorders (iPPSD, former pseudohypoparathyroidism) cases is still very challenging, even for experts. Thus, it is crucial to collect data in a centralized manner for future investigation.Methods: The EuRRECa/EuRR-Bone registries are the first ...

Introduction: Pituitary adenomas (PA) in pediatric and young patients comprise a rare pathology of unknown prevalence. The majority are sporadic, but 5% occur in a familial setting, either as isolated (FIPA) or as part of a syndrome. The identification of genetic alterations has broaden the scope of molecular investigations. We describe the clinical characteristics of patients with sporadic PA arising before the age of 35 years and perform thorough genetic scr...

Background: Congenital hyperinsulinism (CHI) is a rare disease affecting neonates, infants, and children. CHI is characterized by dysregulated insulin secretion resulting in severe recurrent hypoglycemia. Early treatment is necessary to limit the risk of neurologic and developmental sequelae. Current treatment options are limited and inadequate. Dasiglucagon (DASI) is a glucagon analog suitable for continuous subcutaneous infusion which has been shown to raise...

Introduction: Cardiovascular disease (CVD) is the major cause of morbidity and mortality in type 1 diabetes (T1D). Recent studies implicated deregulated phosphate homeostasis in the etiology of CVD. The objective of this study is to address the relationship between the phosphate-regulating hormone fibroblast growth factor 23 (FGF23) and cardiovascular risk factors in adults with and without type 1 diabetes (T1D).Methods:...

Background: 2015 ATA Guidelines for management of medullary thyroid cancer (MTC) include C634 RET codon mutation in ‘High risk’ group, recomendating prophylactic thryroidectomy before 5 years old based on serum basal calcitonin levels (SBCt).Objective and hypotheses: We present 14 pediatric patients with C634 RET codon mutation, who underwent prophylactic thyroidectomy in our center, their clinical and analytical features and anatomopathologica...

Background: Genome-wide association studies have identified more than 60 SNPs associated with BMI. Additional genetic variants, such as copy number variations (CNV), have also been implicated in the pathogenesis of obesity. Recently, the highly polymorphic CNV in the salivary amylase (AMY1) gene has been associated with obesity risk in adults.Objective and hypothesis: To assess the potential association between AMY1 copy number and BMI ...

Failure to thrive is a term used to describe inadequate growth or the inability to maintain growth, which usually occurs in early childhood. Case report: female patient, 7 months old, referred to the pediatric clinic of Hospital de Clínicas de Porto Alegre due to a possible syndromic condition. He had no diagnosed comorbidity to date and was using only prophylactic ferrous sulfate and vitamin D. No family history of similar illness. Physical examination showed hypertric...

Background: In Brazil, specially in the south, there is a high prevalence of p53 mutations – 1:300 compared to 1:5000-1:20000 incidence worldwide. (1) As a consequence, adrenocortical carcinoma as a cause of virilization in children is much more common in our practice.Clinical Case: M.P.O., a 32-month-old girl, was referred to our institution - Hospital de Clínicas de Porto Alegre - in May 2022 due to progre...