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Título: | Genetic landscape of 6089 inherited retinal dystrophies affected cases in Spain and their therapeutic and extended epidemiological implications |
Autor: | Perea-Romero, Irene; Gordo, Gema; Iancu, Ionut F.; Pozo-Valero, Marta del; Almoguera, Berta; Blanco-Kelly, Fiona; Carreño, Ester; Jiménez-Rolando, Belén; López-Rodríguez, Rosario; Lorda-Sánchez, Isabel; Martín Mérida, Inmaculada; Pérez de Ayala, Lucía; Riveiro-Álvarez, Rosa; Rodríguez-Pinilla, Elvira; Tahsin-Swafiri, Saoud; Trujillo-Tiebas, María J.; García-Sandoval, Blanca; Mínguez, Pablo; Ávila-Fernández, Almudena; Cortón, Marta; Ayuso, Carmen | Fecha de publicación: | 15-ene-2021 | Editor: | Springer Nature | Citación: | Scientific Reports 11: 1526 (2021) | Resumen: | Inherited retinal diseases (IRDs), defined by dysfunction or progressive loss of photoreceptors, are disorders characterized by elevated heterogeneity, both at the clinical and genetic levels. Our main goal was to address the genetic landscape of IRD in the largest cohort of Spanish patients reported to date. A retrospective hospital-based cross-sectional study was carried out on 6089 IRD affected individuals (from 4403 unrelated families), referred for genetic testing from all the Spanish autonomous communities. Clinical, demographic and familiar data were collected from each patient, including family pedigree, age of appearance of visual symptoms, presence of any systemic findings and geographical origin. Genetic studies were performed to the 3951 families with available DNA using different molecular techniques. Overall, 53.2% (2100/3951) of the studied families were genetically characterized, and 1549 different likely causative variants in 142 genes were identified. The most common phenotype encountered is retinitis pigmentosa (RP) (55.6% of families, 2447/4403). The most recurrently mutated genes were PRPH2, ABCA4 and RS1 in autosomal dominant (AD), autosomal recessive (AR) and X-linked (XL) NON-RP cases, respectively; RHO, USH2A and RPGR in AD, AR and XL for non-syndromic RP; and USH2A and MYO7A in syndromic IRD. Pathogenic variants c.3386G > T (p.Arg1129Leu) in ABCA4 and c.2276G > T (p.Cys759Phe) in USH2A were the most frequent variants identified. Our study provides the general landscape for IRD in Spain, reporting the largest cohort ever presented. Our results have important implications for genetic diagnosis, counselling and new therapeutic strategies to both the Spanish population and other related populations. | Descripción: | ESRETNET Study Group, The ERDC Study Group, The Associated Clinical Study Group. | Versión del editor: | http://dx.doi.org/10.1038/s41598-021-81093-y | URI: | http://hdl.handle.net/10261/261340 | DOI: | 10.1038/s41598-021-81093-y | Identificadores: | doi: 10.1038/s41598-021-81093-y e-issn: 2045-2322 |
Referencias: | Perea-Romero, Irene; Gordo, Gema; Iancu, Ionut F.; Pozo-Valero, Marta del; Almoguera, Berta; Blanco-Kelly, Fiona; Carreño, Ester; Jiménez-Rolando, Belén; López-Rodríguez, Rosario; Lorda-Sánchez, Isabel; Martín Mérida, Inmaculada; Pérez de Ayala, Lucía; Riveiro-Álvarez, Rosa; Rodríguez-Pinilla, Elvira; Tahsin-Swafiri, Saoud; Trujillo-Tiebas, María J.; García-Sandoval, Blanca; Mínguez, Pablo; Ávila-Fernández, Almudena; Corton, Marta; Ayuso, Carmen. Author Correction: Genetic landscape of 6089 inherited retinal dystrophies affected cases in Spain and their therapeutic and extended epidemiological implications. Scientific Reports 11: 10340 (2021). http://hdl.handle.net/10261/261353 . https://doi.org/10.1038/s41598-021-89275-4 |
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