Clinical and genetic landscape of IRD in Portugal: pooled data from the nationwide IRD-PT registry

Bibliographic Details
Title: Clinical and genetic landscape of IRD in Portugal: pooled data from the nationwide IRD-PT registry
Authors: Ana Marta, Pedro Marques-Couto, Sara Vaz-Pereira, José Costa, Diogo Cabral, Sérgio Estrela-Silva, Maria Franca, João Heitor Marques, Maria João Menéres, Carolina Lemos, João Melo Beirão, Célia Azevedo Soares, Ana Luísa Carvalho, João Pedro Marques
Source: npj Genomic Medicine, Vol 10, Iss 1, Pp 1-11 (2025)
Publisher Information: Nature Portfolio, 2025.
Publication Year: 2025
Collection: LCC:Medicine
LCC:Genetics
Subject Terms: Medicine, Genetics, QH426-470
More Details: Abstract This study aims to characterize the clinical spectrum and genetic landscape of IRDs in Portugal. Multicentre, cross-sectional, cohort study comprising consecutive patients with a clinical diagnosis of IRD and available genetic results, enroled in the IRD-PT registry (retina.com.pt). Among the 1369 patients enroled from 1125 families, the most frequently observed phenotype was non-syndromic retinitis pigmentosa (40.8%). A genetically confirmed diagnosis was achieved in 72.3% of families. Consanguinity was observed in one-fifth of cases, contributing to a higher frequency of homozygous variants within this cohort. Disease-causing genotypes were distributed across 136 different genes, with ABCA4 (13.0%), EYS (10.0%) and USH2A (6.9%) being the most frequently mutated genes. Overall, these results from a nationwide cohort significantly advance our understanding of the clinical and genetic spectrum of IRDs in Portugal, laying the groundwork for future studies to identify patients eligible for targeted therapies and to describe the natural history of these diseases.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2056-7944
Relation: https://doaj.org/toc/2056-7944
DOI: 10.1038/s41525-025-00475-7
Access URL: https://doaj.org/article/8e07c873ceb1477187cbdd8c4ac16583
Accession Number: edsdoj.8e07c873ceb1477187cbdd8c4ac16583
Database: Directory of Open Access Journals
More Details
ISSN:20567944
DOI:10.1038/s41525-025-00475-7
Published in:npj Genomic Medicine
Language:English