hrp0098p1-288 | Thyroid 3 | ESPE2024

Assessment of regulatory B cells in peripheral blood and zinc transporter 8 expression in thyroid tissue in children with autoimmune thyroid diseases

Stożek Karolina , Starosz Aleksandra , Opęchowska Aleksandra , Bossowski Filip , Moniuszko Marcin , Grubczak Kamil , Bossowski Artur

Introduction: There has been a growing trend in the incidence of autoimmune thyroid diseases (ATD) in the pediatric group of patients. The new aspects of its pathogenesis may contribute to understand innovative methods of prevention and treatment. Regulatory B cells (Breg) allow the maintenance of immune homeostasis by neutralizing the negative reactions of effector cells. Attention has been recently paid also to the new environmental factor like zinc and its ...

hrp0095p1-111 | Growth and Syndromes | ESPE2022

Diagnostic yield of a multigene sequencing approach in children classified as idiopathic short stature

Andrade Nathalia , Funari Mariana , Malaquias Alexsandra , Collett- Solberg Paulo , Gomes Nathalia , Scalco Renata , Dantas Naiara , Rezende Raissa , Tiburcio Angelica , Souza Micheline , Freire Bruna , Krepischi Ana , Longui Carlos , Lerario Antonio , Arnhold Ivo , Jorge Alexander , Vasques Gabriela

Objective: Most children with short stature remain without an etiologic diagnosis after extensive clinical and laboratory evaluation and are classified as idiopathic short stature (ISS). This study aimed to determine the diagnostic yield of a multigene gene analysis in children classified as ISS.Design and Methods: We selected 102 children with ISS and performed the genetic analysis as part of the initial investigation. ...

hrp0094fc3.4 | Growth Disorders | ESPE2021

Prospective genetic analysis by a targeted gene panel of a cohort of patients classified as idiopathic short stature (ISS)

Andrade Nathalia , Funari Mariana , Lerario Antonio , Malaquias Alexsandra , Solberg Paulo , Lisboa Nathalia , Rayol Micheline , Dantas Naiara , Rezende Raissa , Lucheze Bruna , Quedas Elisangela , Krepischi Ana , Arnhold Ivo , Vasques Gabriela , Jorge Alexander ,

Introduction: The majority of children with short stature are classified as ISS by the absence of findings that could elucidate the cause of their growth impairment. Several monogenic defects have already been identified in children with ISS, but the candidate gene approach is not feasible when there are no specific findings to guide a specific genetic test.Objective: To evaluate the diagnostic yield of a targeted gene p...

hrp0098p1-61 | Growth and Syndromes 1 | ESPE2024

Comparison of the diagnostic yield of whole exome sequencing (WES) and targeted panel sequencing for children with idiopathic short stature (ISS)

Cellin Laurana , Andrade Nathalia , Malaquias Alexsandra , Rezende Raissa , Atique Patricia , Luz Camila , Vasques Gabriela , Souza Vinicius , Quedas Elisangela , Antonini Sonir , Collet-Solberg Paulo , Scalco Renata , Longui Carlos , Jorge Alexander

Introduction: Growth disorders are often caused by monogenic conditions, and genetic investigation should be guided by clinical findings. However, in children with ISS, the absence of specific clinical features prevents the candidate gene approach. ACMG practice guideline (2021) recommends that children with ISS could be evaluated using targeted panel sequencing or WES. In commercial laboratories, WES is often performed and the genetic evaluation is offered as...

hrp0098p2-33 | Bone, Growth Plate and Mineral Metabolism | ESPE2024

Dysplasia Epiphysealis Hemimelica combined with Familial Hypocalciuric Hypercalcemia – can the calcium-sensing receptor have a role in expansive bone lesions?

Hoelz Tellini Toledo Arthur , Diesendruck Benjamin , Ayumi Peixoto Aoto Barbara , Akkari Miguel , Santili Cláudio , de Oliveira Goiano Ellen , Ferreira Rodart Itatiana , Rosa Bispo Thayna , A. Longui Carlos , C. Malaquias Alexsandra

Background: The calcium-sensing receptor (CaSR) regulates calcium metabolism by modulating PTH secretion, as well as by direct effect on osteoblasts and osteoclasts, balancing bone formation and resorption. Loss-of-function heterozygous mutations on CASR gene can lead to Familial Hypocalciuric Hypercalcemia (FHH; OMIM #145980), a benign autosomal dominant condition of undefined incidence. Dysplasia Epiphysealis Hemimelica (DEH; OMIM #127800) is a rare...

hrp0098p2-155 | GH and IGFs | ESPE2024

Short and long-term response to rhGH therapy in short children born at very low birth weight.

Christianne Malaquias Alexsandra , Kataoka Homma Thais , Castelo Branco Dantas Naiara , Lucheze Freire Bruna , Vasco de Albuquerque Albuquerque Edoarda , Jorge Prado Arnhold Ivo , Cunha Scalco Renata , Augusto de Lima Jorge Alexander

Introduction: Extrauterine growth retardation is a common characteristic among children born at very low birth weight (VLBW). Over time, recombinant human growth hormone (rhGH) has been used in this group based on indications for children born small for gestational age (SGA). However, this group represents an extreme phenotype to the majority of children born SGA, and data on the outcomes of this therapy in this group are limited.<strong...

hrp0098p2-178 | Growth and Syndromes | ESPE2024

Co-Occurrence of DNET and Lymphoma in a patient with Noonan syndrome and mutation in PTPN11 gene

Rosa Pellicciari Caroline , Aparecida Siviero Miachon Adriana , Maria Spinola e Castro Angela , Maria Cappellano Andrea , Saba da Silva Nasjla , Augusto Vercillo Luisi Flavio , A. L. Jorge Alexander , C. Malaquias Alexsandra

Background: Noonan Syndrome (NS; OMIM 163950) is a common autosomal dominant disorder distinguished by facial dysmorphism, short stature, heart defects, chest deformities, and learning disabilities or mental retardation. NS stems from heterozygous germline causative variants in genes regulating the RAS/MAPK signaling pathway, including PTPN11, SOS1, RAF1, RIT1, KRAS, NRAS, BRAF, LZTR1, and SOS2. The condition exhibits considerable clinical variability and shar...

hrp0095p1-561 | Pituitary, Neuroendocrinology and Puberty | ESPE2022

A new DLK1 defect in a family with idiopathic CPP: elucidation of the male phenotype

Palumbo Stefania , Cirillo Grazia , Sanchez Gianmaria , Fachin Alice , Baldo Francesco , Grazia Pellegrin Maria , Cassio Alessandra , Carolina Salerno Maria , Maghnie Mohamad , Felicia Faienza Maria , Wasniewska malgorzata , Fintini Danilo , Giacomozzi Claudio , Ciccone Sara , Miraglia Del Giudice Emanuele , Tornese Gianluca , Grandone Anna

Introduction: Central precocious puberty (CPP) is due to premature activation of the hypothalamic-pituitary-gonadal axis. Mutations in the imprinted gene MKRN3 are the most common monogenic form of CPP. Recently, attention was directed to DLK1, another imprinted gene. Defects in this gene resulted to be a rare cause of CPP in girls and adult women with precocious menarche, obesity and metabolic derangement. We aimed to investigate a cohort of female and male p...

hrp0092p2-171 | GH and IGFs | ESPE2019

Final Height in GH-deficient Paediatric Patients: A Nationwide Experience

Zucchini Stefano , Lonero Antonella , Bellone Simonetta , Bozzola Mauro , Cassio Alessandra , Felicia Faienza Maria , Giacomozzi Claudio , Grandone Anna , Guzzetti Chiara , Iughetti Lorenzo , Parpagnoli Maria , Salerno Mariacarolina , Elizabeth Street Maria , Tornese Gianluca , Wasniewska Malgorzata , Delvecchio Maurizio

Background: The primary goal of GH treatment in GHD children and adolescents is to normalize height, in order to attain an adult height within the target height (TH) range.Aim: to investigate height improvement in GHD paediatric patients treated with GH in our Country.Subjects: 737 patients with isolated GHD (39.5% females) from 13 tertiary Centres for Paediatric Endocrine Care...

hrp0082p2-d1-593 | Thyroid | ESPE2014

Incidence of Thyroid Nodules in Children Affected by Hashimoto’s Thyroiditis: a 12-Year Survey of 567 Children

Longhi Silvia , Aversa Tommaso , Bal Milva , Cantasano Antonella , Cappa Marco , Cassio Alessandra , Corrias Andrea , D'Antonio Valeria , De Luca Filippo , Di Mase Raffaella , Gastaldi Roberto , Guzzetti Chiara , Loche Sandro , Salerno Mariacarolina , Maria Tronconi Giulia , Cristina Vigone Maria , Weber Giovanna , Radetti Giorgio

Background: Hashimoto’s thyroiditis (HT) has been linked to papillary cancer in adults but not in children and adolescents. Moreover, there is no agreement on the more appropriate frequency of thyroid ultrasound (TS) in the follow-up of children with HT.Objective and hypotheses: The aim of the study was to investigate the incidence of thyroid nodules and of thyroid cancer in a large group of children and adolescents (567) with HT followed-up for a m...