Evidence map›Paper›PMID 39939324›Full record

ArticleNPJ genomic medicine2025

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

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 and 4 more

Abstract read
In one paragraph

Article in NPJ genomic medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Experimental biology and medicine (Maywood, N.J.) · 2026
    Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Ana MartaDepartment of Ophthalmology, Unidade Local de Saúde de Santo António, EPE (ULSSA), Porto, Portugal.ORCID http://orcid.org/0000-0003-3495-4649
Pedro Marques-CoutoDepartment of Ophthalmology, Unidade Local de Saúde de São João, EPE (ULSSJ), Porto, Portugal.ORCID http://orcid.org/0009-0002-6964-646X
Sara Vaz-PereiraDepartment of Ophthalmology, Unidade Local de Saúde de Santa Maria (ULSSM), Lisboa, Portugal.
José CostaDepartment of Ophthalmology, Unidade Local de Saúde de Braga (ULSB), Braga, Portugal.
Diogo CabralDepartment of Ophthalmology, Unidade Local de Saúde de Almada-Seixal, EPE (ULSAS), Lisboa, Portugal.
Sérgio Estrela-SilvaDepartment of Ophthalmology, Unidade Local de Saúde de São João, EPE (ULSSJ), Porto, Portugal.ORCID http://orcid.org/0000-0002-7415-813X
Maria FrancaClinical Academic Centre of Coimbra (CACC), Coimbra, Portugal.
João Heitor MarquesDepartment of Ophthalmology, Unidade Local de Saúde de Santo António, EPE (ULSSA), Porto, Portugal.
Maria João MenéresDepartment of Ophthalmology, Unidade Local de Saúde de Santo António, EPE (ULSSA), Porto, Portugal.
Carolina LemosInstituto Ciências Biomédicas Abel Salazar (ICBAS), Porto, Portugal.
João Melo BeirãoDepartment of Ophthalmology, Unidade Local de Saúde de Santo António, EPE (ULSSA), Porto, Portugal.
Célia Azevedo Soaresi3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.ORCID http://orcid.org/0000-0002-2907-0091
Ana Luísa CarvalhoClinical Academic Centre of Coimbra (CACC), Coimbra, Portugal.
João Pedro MarquesClinical Academic Centre of Coimbra (CACC), Coimbra, Portugal. marquesjoaopedro@gmail.com.ORCID http://orcid.org/0000-0002-1014-0483

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

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.

Identifiers

PMID39939324
PMCPMC11821859

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.