ESPE Abstracts

Objectives: American Thyroid Association (ATA) and European Thyroid Association (ETA) published guidelines about evaluation, treatment and follow-up. Despite these recommendations, published data on this subject is insufficient. This study aims to investigate the outcome of pediatric DTC and factors predicting the response to therapy in pediatric DTC.Methods: Medical records of 46 children diagnosed with DTC, between 200...

Background: To aid assessment of parent-reported quality of life outcomes (PRO) in routine clinical setting in young children with a condition affecting sex development, a short questionnaire (PRO-CSD) that includes a parent-proxy report (PPR) and a parent-self-report measure (PSR) has been recently developed and requires further validation. Methods: Parents of 98 boys with a median age of 2.9 yrs (range, 0.2,6.5) and me...

Introduction: Lysineuric protein intolerance (LPI) is a rare autosomal recessive disorder caused by mutations in the SLC7A7 gene, which impairs the intestinal, renal and hepatic absorption of basic amino acids (lysine, arginine, ornithine). Children with LPI may present with protein avoidance, growth retardation, hepatosplenomegaly and osteoporosis. Here, we present two cases diagnosed with LPI due to short stature, with one case involving growth horm...

Introduction: Central Diabetes Insipidus (CDI) is characterized by polyuria, polydipsia and weight loss, resulting from impaired secretion of Antidiuretic Hormone (ADH) in response to serum osmolarity changes. Langerhans Cell Histiocytosis (LCH)is an inflammatory myeloid neoplasm that can affect all organ systems, with central nervous system involvement frequently localized in the posterior pituitary. This report presents a case of pituitary stalk thickening d...

Background: Childhood obesity is a major health concern worldwide which is associated with increased risk of chronic diseases such as metabolic syndrome (MS). MicroRNAs have been showed to play regulatory roles in several biological progresses such as adipocyte differentiation, glucose and lipid metabolism and insulin signaling pathway. The studies of the circulating miRNAs expressing involved in obesity and MS are of essential importance as it could lead to the identification...

Children diagnosed with adrenocortical tumors (ACT) have variable prognosis depending on disease presentation at diagnosis. Available therapeutic options render excellent outcome for a subset of patients, but limited improvement in the survival of those diagnosed with non-localized/advanced disease. ACT DNA methylation was recently demonstrated to be a robust and independent prognostic biomarker. Aiming to identify potential therapeutic targets for these children, we compared ...

Background: Thyroid cancers are rare in childhood. ATA guideline (Pediatric section) has been applied in daily practice since 2015. It is very significant to accurately predict the risk in the management of differentiated thyroid cancer(DTC). For this purpose, we shared our single center-20-year-experience about the follow-up features and management of childhood and adolescent thyroid cancer. We aimed to evaluate the dynamic risk stratification (DRS) and the o...

Background: The sonic hedgehog pathway (SHH) regulates CNS development and mutations or abnormal expression of the SHH pathway genes have been identified in epithelial tumors. SHH pathway interacts with Wnt/β-catenin signalling. To date, CTNNB1/β-catenin mutations are the sole molecular abnormality found in adamantinomatous craniopharyngiomas (ACPs).Objective and Hypotheses: To analyze the expression pattern of SHH pathway genes in ACPs and its...

Background: overexpression of the oncogene Yes-associated protein 1 (YAP1), a Hippo pathway target, associates with increased cell proliferation in some human cancers. There is not data on adrenocortical tumors (ACT). YAP1 is a potential target of Wnt/β-catenin pathway, which plays an important role in ACTs.Objective and hypotheses: to evaluate the role of YAP1 and its interaction with the Wnt/β-catenin pathway in ACT.Met...

Aim: To uncover a feasible tumor expression prognostic signature and potential therapeutic targets for children with pACT.Methods: Tumor RNAseq from 53 pACT children (70% girls, median age: 1.7yrs) was performed (Illumina). Using a robust, state-of-the-art, differential gene expression analysis pipeline, differentially expressed genes (DEGs: adjusted P<0.05 and |log2 fold-change|>1) were identified (DESeq2...