hrp0092fc14.1 | GH and IGF1 | ESPE2019

Inhibition of IGF1R by IGF1R/IR Inhibitor OSI906 as a Targeted Therapy for Glioblastoma: in vitro & in vivo Studies

Fernandez Maria Celia , Martin Ayelen , Clément Florencia , Venara Marcela , Fernanda Castro Julia , Lombardi Mercedes Garcia , Bergadá Ignacio , Pennisi Patricia

Background: CNS tumours are the most frequent solid tumours in children. In pediatric gliomas, IGF1R nuclear localization was significantly associated with both high grade tumours and increased risk of death and contributed to the aggressive phenotype of glioblastoma by increasing motility and metabolism of tumour cells rather than increasing its proliferation. For children chemotherapy after surgical resection is the mainstay of therapy. However, the best reg...

hrp0092p1-359 | GH and IGFs (2) | ESPE2019

Insulin-Like Growth Factor 2 in Pediatric Gliomas: Expression, Intracellular Localization and Association with Clinical Outcome

Clément Florencia , Martin Ayelen , Venara Marcela , Fernández María Celia , Lombardi Mercedes García , Bergadá Ignacio , Pennisi Patricia

Background and Aim: Gliomas are the most frequent solid tumors in pediatric population. The IGF system of ligands and receptors are known to play an important role in both normal and neoplastic growth. In a previous work we have reported the quantitation of some components of the IGFs system in SNC pediatric tumours (IGF-1, IGF-2, IGF-1R, IR), being IGF-2 expression the most variable among all the genes studied.Our aim w...

hrp0092p1-72 | GH and IGFs | ESPE2019

Diagnostic Value of Random Serum Growth Hormone (GH), IGF-I and IGFBP-3 Concentrations for the Diagnosis of Growth Hormone Deficiency (GHD) in Patients Below One Year of Life

Ballerini María Gabriela , Braslavsky Débora , Freire Analía Verónica , Keselman Ana , Rodríguez María Eugenia , Altube Mercedes , Scaglia Paula Alejandra , Bergadá Ignacio , Ropelato María Gabriela

GHD diagnosis in neonates and infants is a challenge owing to the fact that GH pharmacological stimulation tests (GHST) are not approved at this age. In a retrospective study, we found that a random GH<6.5 µg/L confirmed GHD diagnosis in neonates with clinical suspicion of GHD with high diagnostic accuracy (1). The accuracy of GH and its surrogates of action have not been set for infants with current standardized immunoassays.Objective</...

hrp0092lb-7 | Late Breaking Posters | ESPE2019

Long-Term Evaluation of Ovarian Function and Follicular Reserve in Patients with Malignant Diseases Treated with Chemotherapy in Prepubertal or Pubertal Age

Josefina Arcari Andrea , Verónica Freire Analía , Paula Grinspon Romina , Bedecarrás Patricia , Eugenia Escobar María , Gabriela Ropelato María , Bergadá Ignacio , Rey Rodolfo , Graciela Gryngarten Mirta

The survival rate of young patients with cancer has greatly improved in the last decades, in part due to the introduction of new therapeutic agents and protocols.Chemotherapy may be associated with risk of ovarian dysfunction, permanent or transient amenorrhea, symptoms of ovarian insufficiency and infertility.It has been suggested that prepubertal ovary is less susceptible to deleterious effect of chemotherapy.<p class="abstex...

hrp0092p1-410 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology (2) | ESPE2019

Sertoli Cell Function after Chemotherapy in Boys with Hematologic Malignancies

Grinspon Romina P. , Arozarena Maria , Prada Silvina , Bargman Graciela , Sanzone María , Morales Bazurto Marjorie , Kanneman Ana , Bedecarrás Patricia , Gutiérrez Marcela , Gottlieb Silvia , Berenstein Ariel J. , Gabriela Ropelato María , Bergadá Ignacio , Aversa Luis , Rey Rodolfo A.

Introduction: Gonadotoxicity associated with chemotherapy of hematologic malignancies has been described mainly in adults, focused on the sensitivity of germ cells. Little attention has been placed on Sertoli cells during childhood and puberty, even though Sertoli cell development is essential for adult spermatogenesis.Objective: To assess function of the pituitary-testicular axis, with emphasis on Sertoli cell function,...