hrp0082p2-d1-565 | Sex Development | ESPE2014

Novel NR5A1 Gene Mutations Associated with 46,XY Disorders of Sex Development

Fabbri Helena , de Andrade Juliana Gabriel Ribeiro , Maciel-Guerra Andrea Trevas , Guerra-Junior Gil , de Mello Maricilda Palandi

Background: Disorders of sex development (DSD) characterize incomplete or disorganized genital or gonadal development. One in 4500 births requires genetic and endocrine studies due to abnormal external genitalia or gonadal dysgenesis and only 50% of the cases receive a definitive diagnosis. There are several genes that participate in both sex determination and differentiation processes. Mutations in NR5A1 gene, which encoding SF1, a transcription factor, are responsib...

hrp0082lbp-d3-1001 | (1) | ESPE2014

Histological Evaluation of Patients with Partial Gonadal Dysgenesis and NR5A1 Mutations: Review in Leydig and Germ Cell Pattern

de Andrade Juliana Gabriel Ribeiro , Werner Ralf , Fabbri Helena Campos , Guerra-Junior Gil , Maciel-Guerra Andrea Trevas , de Mello Maricilda Palandi , Holl-Ulrich Konstanze , Hiort Olaf

Background: Recent data describe that the gonads of patients with partial gonadal dysgenesis (PGD) and mutation in the NR5A1 gene can present with a different histological pattern.Objective and hypotheses: To evaluate histological aspects of PGD caused by NR5A1 mutations.Method: Five patients with PGD, a history of gonadal biopsy or gonadectomy and confirmed mutation on NR5A1 gene were selected from a Bra...

hrp0086lbp10 | (1) | ESPE2016

Molecular Analysis of AR, SRD5A2, NR5A1 and HSD17B3 Genes in a Brazilian 46,XY DSD Cohort

Petroli Reginaldo Jose , Lessa Victor Jose Correia , Vieira Larissa Clara , de Calais Flavia Leme , Fabbri Helena Campos , Henriques Taciane Barbosa , dos Santos Cruz Piveta Cristiane , do Nascimento Diogo Lucas Lima , de Mello Maricilda Palandi , Monlleo Isabella Lopes

Background: Disorders of Sex Development (DSD) comprise several phenotypes due to dysfunction in genes involved in human sexual determination and differentiation. The most frequent aetiologies among 46,XY DSD are androgen insensitivity syndrome and 5-alpha-reductase type 2 deficiency due mutations in AR and SRD5A2 genes, respectively.Objective and hypotheses: The purpose of this study was to investigate mutations in AR and ...