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Jimenez-Rolando B, Garcia-Sandoval B, Del Pozo-Valero M, Ayuso C, Garcia-Ferreira M, Abellanas M, Campos-Seco S, Carreño E. Prevalence, multimodal imaging and genotype-phenotype assessment of trauma related subretinal fibrosis in stargardt disease. Eur J Ophthalmol 2022; 32:3201-3207. [DOI: 10.1177/11206721221093986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background and Objectives Stargardt disease produces lipofuscin accumulation predisposing to subretinal fibrosis (SRFib) after ocular trauma. Noninvasive imaging techniques allow in vivo assessment. The purpose of this study is to determine the prevalence of SRFib in a cohort of Stargardt patients, the presence of history of ocular trauma, the clinical features and possible genotype-phenotype associations in Stargardt patients with SRFib. Methods We evaluated retrospectively 106 Stargardt patients and analysed the multimodal imaging and the genotype of patients with SRFib. Results Six patients exhibited SRFib, three of them with history of ocular trauma. Multimodal imaging showed extensive SRFib principally in the temporal midperipheral retina with no fluid associated. SRFib was better defined by short wavelength autofluorescence and spectral domain optical coherence tomography and appeared clinically stable over time. There was no particular genotype associated to SRFib. Conclusion SRFib occurs in a significant percentage of patients with Stargardt disease and can be diagnosed through multimodal imaging regardless the history of trauma, further sustaining the importance of an appropriate imaging in such patients. No genotype-phenotype association has been established, supporting the traumatic etiology in half of cases. The remaining cases may be classified as idiopathic or have a minimal trauma occurring early in life that may be not recalled by the patients.
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Affiliation(s)
- B Jimenez-Rolando
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - B Garcia-Sandoval
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - M Del Pozo-Valero
- Department of Genetics, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - C Ayuso
- Department of Genetics, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - M Garcia-Ferreira
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - M Abellanas
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - S Campos-Seco
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
| | - E Carreño
- Department of Ophthalmology, Instituto de Investigacion Sanitaria–Fundacion Jimenez Diaz University Hospital, Universidad Autonoma de Madrid (IIS-FJD, UAM), Madrid, Spain
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Trujillo M, Garcia-Sandoval B, Lorda-Sanchez I, Gimenez A, Sanz R, Rodriguez de Alba M, Gonzalez-Gonzalez M, Ibañez A, Ramos C, Ayuso C. Ser186Pro mutation of RHO gene in a Spanish autosomal dominant retinitis pigmentosa (ADRP) family. Ophthalmic Genet 2009. [DOI: 10.1076/1381-6810(200012)2141-hft251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Villaverde C, Trujillo-Tiebas MJ, Garcia-Hoyos M, Narvaiza RC, Perez N, Garcia-Sandoval B, Ayuso C. Novel human pathological mutations. Gene symbol: CHM. Disease: choroideraemia. Hum Genet 2007; 121:648. [PMID: 17879444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
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Vallespin E, Riveiro-Alvarez R, Aguirre-Lamban J, Cantalapiedra D, Tapias I, Garcia-Sandoval B, Trujillo-Tiebas MJ, Ayuso C. Gene symbol: CRB1. Disease: early onset retinitis pigmentosa. Hum Genet 2006; 119:681. [PMID: 17128490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Elena Vallespin
- Department of Genetics, Fundacion Jimenez Diaz, Madrid, Spain.
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Bernal S, Medà C, Solans T, Ayuso C, Garcia-Sandoval B, Valverde D, Del Rio E, Baiget M. Clinical and genetic studies in Spanish patients with Usher syndrome type II: description of new mutations and evidence for a lack of genotype--phenotype correlation. Clin Genet 2005; 68:204-14. [PMID: 16098008 DOI: 10.1111/j.1399-0004.2005.00481.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Patients with Usher syndrome type II (USH2) show moderate-to-severe hearing loss (HL), retinitis pigmentosa and normal vestibular function. The progression of HL remains controversial. To evaluate whether a phenotype-genotype correlation exists regarding the issue of progression of HL, only USH2 patients with a defined genotype were selected. Ophthalmologic, vestibular and audiometric examination along with a mutation analysis of the USH2A gene (exons 1--21) was performed in twenty-eight Spanish USH2 patients. Ten different pathogenic mutations and 17 sequence variants not associated with the disease were found. Six of the 10 mutations are novel. Disease alleles were identified in 13 of the 28 families tested. Eight of these 13 families had a mutation found in both alleles. In the other five families, only one mutation was identified. The phenotypic data provide evidence for the existence of phenotypic differences between patients with the same genotype. These differences were observed at both the interfamilial and intrafamilial levels.
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Affiliation(s)
- S Bernal
- Servei de Genètica, Universidad de Vigo, Vigo, Spain
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Bernal S, Calaf M, Garcia-Hoyos M, Garcia-Sandoval B, Rosell J, Adan A, Ayuso C, Baiget M. Study of the involvement of the RGR, CRPB1, and CRB1 genes in the pathogenesis of autosomal recessive retinitis pigmentosa. J Med Genet 2003; 40:e89. [PMID: 12843338 PMCID: PMC1735523 DOI: 10.1136/jmg.40.7.e89] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- S Bernal
- Servei de Genética, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
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Trujillo M, Garcia-Sandoval B, Lorda-Sanchez I, Gimenez A, Sanz R, Rodriguez de Alba M, Gonzalez-Gonzalez M, Iba�ez A, Ramos C, Ayuso C. Ser186Pro mutation of RHO gene in a Spanish autosomal dominant retinitis pigmentosa (ADRP) family. Ophthalmic Genet 2000. [DOI: 10.1076/1381-6810(200012)21:4;1-h;ft251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Trujillo MJ, Garcia-Sandoval B, Lorda-Sanchez I, Gimenez A, Sanz R, Gonzalez-Gonzalez MC, Ibañez A, Ramos C, Ayuso C. Ser186Pro mutation of RHO gene in a Spanish autosomal dominant retinitis pigmentosa (ADRP) family. Ophthalmic Genet 2000; 21:251-6. [PMID: 11135497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
A Spanish family affected with autosomal dominant retinitis pigmentosa (ADRP) with a diffuse phenotype showed a mutation in the rhodopsin gene. The mutation was the transition T-->C in codon 186, which has been reported once before in an American patient (Dryja et al., Proc Natl Acad Sci USA 1991;88:9370-9374). This change replaces a serine by a proline in the second intradiscal loop of the protein, generating a molecule that is probably folding- and transport-defective.
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Affiliation(s)
- M J Trujillo
- Department of Genetics, Universidad Autonoma, Fundacion Jimenez Diaz, Madrid, Spain
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Lorda-Sanchez IJ, Ibañez AJ, Sanz RJ, Trujillo MJ, Anabitarte ME, Querejeta ME, Rodriguez de Alba M, Gimenez A, Infantes F, Ramos C, Garcia-Sandoval B, Ayuso C. Choroideremia, sensorineural deafness, and primary ovarian failure in a woman with a balanced X-4 translocation. Ophthalmic Genet 2000; 21:185-9. [PMID: 11035551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
We present clinical and cytogenetic studies of a female patient affected with choroideremia, mild sensorineural deafness, and primary amenorrhea showing a balanced translocation between chromosomes X and 4. The breakpoint was precisely defined applying FISH techniques: 46,X,t(X;4)(q21.2;p16.3).ish t(X;4)(D4S96+, D4F26+; wcpX+). The X-chromosomal breakpoint was located within a region where both the choroideremia locus and a deafness locus (DFN3/POU3F4) have been mapped. The presence of X-linked disorders in this balanced carrier of X-autosomal translocations (XAT) can be explained either by the disruption of the structural coding or regulatory sequences of the gene(s) or by the submicroscopic deletion of this region leading to a contiguous gene deletion syndrome. The primary ovarian failure (POF) found in the present case has been already observed in XAT when the breakpoint is within a previously defined critical region (Xq13-26). A position effect is postulated as a possible explanation.
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Lorda-Sanchez I, Trujillo MJ, Gimenez A, Garcia-Sandoval B, Franco A, Sanz R, Rodriguez de Alba M, Ramos C, Ayuso C. Retinitis pigmentosa, mental retardation, marked short stature, and brachydactyly in two sibs. Ophthalmic Genet 1999; 20:127-31. [PMID: 10420199 DOI: 10.1076/opge.20.2.127.2289] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We present two siblings with retinitis pigmentosa, mental retardation, markedly short stature, and brachydactyly. This association of clinical findings appears to be distinct from previously described syndromes and seems to represent the pleiotropic effects of a single autosomal recessive gene.
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12
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Trujillo MJ, Bueno J, Osorio A, Sanz R, Garcia-Sandoval B, Ramos C, Ayuso C. Three novel RDS-peripherin mutations (689delT, 857del17, G208D) in Spanish familes affected with autosomal dominant retinal degenerations. Hum Mutat 1998. [DOI: 10.1002/(sici)1098-1004(1998)12:1<70::aid-humu11>3.0.co;2-m] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ayuso C, Reig C, Garcia-Sandoval B, Trujillo MJ, Antiñolo G, Borrego S, Carballo M. G106R rhodopsin mutation is also present in Spanish ADRP patients. Ophthalmic Genet 1996; 17:95-101. [PMID: 8905849 DOI: 10.3109/13816819609057111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A large family affected with autosomal dominant retinitis pigmentosa (ADRP) with a sectorial phenotype showed a previously described (G to A) mutation in the rhodopsin gene resulting in the substitution of a glycine residue by an arginine in codon 106 of rhodopsin. This mutation shows some unusual characteristics, such as initial pathology of the inferior retina, superior visual field with normal disc and retinal vessels, and ERG findings that show a modest reduction in both cone and rod amplitudes with normal implicit times. The Gly 106 Arg mutation has been previously reported in American and British patients. Its presence in a Spanish ADRP family confirms that it and its homogeneous associated phenotype are geographically widespread.
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Affiliation(s)
- C Ayuso
- Department of Genetics, Fundacion Jimenez Diaz, Madrid, Spain
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Ayuso C, Garcia-Sandoval B, Najera C, Valverde D, Carballo M, Antiñolo G. Retinitis pigmentosa in Spain. The Spanish Multicentric and Multidisciplinary Group for Research into Retinitis Pigmentosa. Clin Genet 1995; 48:120-2. [PMID: 8556816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Retinitis pigmentosa is a term commonly given to a group of inherited and progressive disorders which affect the photoreceptors of the retina. As part of an ongoing research programme throughout Spain, clinical, epidemiological, and genetic studies have been carried out on these diseases. Here, we report the relative frequencies of the different genetic types in 503 non-syndromic and 89 syndromic RP families of Spanish origin. The most frequent syndromic RP forms were Usher syndrome type 1 (20/89 families = 30%) and Usher syndrome type 2 (44 families = 49%). Among non-syndromic RP forms, 12% were autosomal dominant, 39% autosomal recessive and 4% X-linked. Forty-one percent were isolated or simplex cases and in 4% the genetic type could not be established.
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Affiliation(s)
- C Ayuso
- Fundacion Jimenez Diaz, Universidad Autonoma, Madrid, Spain
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Reig C, Antich J, Gean E, Garcia-Sandoval B, Ramos C, Ayuso C, Carballo M. Identification of a novel rhodopsin mutation (Met-44-Thr) in a simplex case of retinitis pigmentosa. Hum Genet 1994; 94:283-6. [PMID: 8076945 DOI: 10.1007/bf00208284] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Retinitis pigmentosa (RP) is a group of genetically heterogeneous retinal degenerations that can be autosomal dominant (ADRP), autosomal recessive (ARRP), or X-linked. Approximately 30% of ADRP patients show point mutations or small deletions in the rhodopsin gene. However, over 50% of the RP patients are simplex cases (sporadic). Screening for mutations in the rhodopsin gene of 33 patients with simplex RP by denaturing gradient gel electrophoresis (DGGE) was carried out. One patient, with D-type (diffuse) RP and consanguineous parents, showed an altered electrophoretic pattern for the 5' half of exon 1. Direct sequencing revealed a new mutation ATG to ACG in codon 44; this predicts a change of Met-44-Thr in rhodopsin. The position and amino acid substitution suggest that this mutation causes the RP phenotype. Implications for genetic counselling are discussed.
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Affiliation(s)
- C Reig
- Secció de Genética del Hospital Sant Joan de Déu, Barcelona, Spain
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Jordan SA, del Rio T, Soriano N, Garcia-Sandoval B, Kenna P, Ayuso C, Benitez J, Humphries P. Autosomal dominant retinitis pigmentosa (adRP): exclusion of a gene from three mapped loci provides evidence for the existence of a fourth locus. Hum Mol Genet 1992; 1:411-5. [PMID: 1301915 DOI: 10.1093/hmg/1.6.411] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Retinitis Pigmentosa (RP) is a group of inherited retinopathies which affect approximately 1 in 4,000 individuals. The disorder can be classified on the basis of inheritance; dominant, recessive and X-linked forms have been well documented. The existence of genetic heterogeneity within autosomal dominant RP (adRP) had been previously demonstrated. As a result of extensive linkage studies in 2 large Irish families and 1 American pedigree three adRP genes have been mapped. adRP genes have been localised to chromosome 3q close to the rod photoreceptor gene, rhodopsin; to chromosome 6p close to another transmembrane photoreceptor gene, peripherin/RDS and to the pericentric region of chromosome 8, although the causative gene in this region has not yet been identified. Here we report the results of a linkage study in a Spanish family, who exhibit an early-onset form of adRP. The adRP gene segregating in this family has been excluded from the three known adRP loci on chromosomes 3q, 6p and 8 using a series of both intragenic microsatellite markers from the rhodopsin and peripherin/RDS genes and markers flanking the three known loci. These results provide definitive evidence for the existence of a fourth adRP locus, further emphasising the genetic heterogeneity that exists within adRP.
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Affiliation(s)
- S A Jordan
- Department of Genetics, Trinity College, Dublin, Ireland
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