hrp0092p1-270 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology (1) | ESPE2019

Large Spectrum of DSD Phenotype Caused by Pathogenic Variants in Wilms Tumor Suppressor Gene 1

Ferrari Maria Tereza Martins , Domenice Sorahia , Mendonça Berenice Bilharino , Moraes Daniela Rodrigues , Batista Rafael Loch , Gomes Nathalia Lisboa , Nishi Mirian Yumie , Sircili Maria Helena , Paula Tatiana Evelin , Costa Eduardo , Costa Elaine Maria Frade

Introduction: The Wilms tumor suppressor gene 1 (WT1) plays an essential role in urogenital and kidney development. Heterozygous germline mutations in WT1 have been classically associated with Denys–Drash (DDS) and Frasier syndrome (FS). Exonic missense mutations in the zinc-finger region are the cause of DDS and mutations affecting the canonic donor KTS splice site of intron 9 are the cause of FS. New phenotypes, as 46,XX testicular DSD...

hrp0089fc8.5 | Sex differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2018

DEAH-Box Helicase 37defects (DXH37) Deffects are a Novel Cause of 46,XY Gonadal Dysgenesis

Gomes Nathalia , Silva Thatiana , Lerario Antonio , Batista Rafael Loch , Junior Jose Antonio Faria , Moraes Daniela , Costa Elaine Maria Frade , Nishi Mirian , Carvalho Luciani Renata , Forclaz Maria Veronica , Papazian Regina , Martinez-Aguayo Alejandro , de Paula Leila Pedroso , Carvalho Filomena Marino , Vilain Erick , Barseghyan Hayk Barseghyan , Keegan Catherine , Domenice Sorahia , Mendonca Berenice Bilharinho

Background: 46,XY gonadal dysgenesis (GD) is a spectrum disorder which lead to variable degrees of atypical external genitalia, ranging from female to micropenis and absent of gonadal tissue (known as Embryonic Testicular Regression Syndrome -ETRS). Most patients with 46,XY GD remains without a molecular diagnosis.Objective: To report the DEAH-box helicase 37 gene (DHX37) as a novel candidate for the GD etiology.Patients a...