Abstract:
:Background: Retinitis punctate albescens (RPA) is a rare form of retinal dystrophy characterized by congenital stationary night blindness and a characteristic fundus appearance. Missense or nonsense mutations in RDH5 in homozygous or heterozygous state have been implicated in RPA.Material and methods: Two consanguineous Pakistani kindreds with the highly variable manifestation of RPA were studied. Whole-exome sequencing was applied to the index subjects in both families. Sanger sequencing of the candidate RDH5 variant was carried out. Pathogenicity of the detected variant was assessed through bioinformatics tools.Results: The ophthalmic examination through full-field electroretinogram of affected patients in both families was consistent with RPA. A novel splice donor variant at the first exon/intron boundary of RDH5 (NM_002905.3: c.-33 + 2dup) segregated in recessive fashion with the clinical phenotype in both families. One of the heterozygous variant carriers was also observed to have a milder expression of retinal flecks. Haplotype analysis surrounding the splice variant and pattern of runs of homozygosity were suggestive of common ancestry in these families.Conclusion: This is the first report of any pathogenic splice variant at first exon/intron boundary implicated in RPA and suggests another mechanism through which RDH5 variants could be associated with eye phenotype. This study also highlights the importance of a thorough phenotypic evaluation of heterozygous mutation carriers who may exhibit milder symptoms.
journal_name
Ophthalmic Genetjournal_title
Ophthalmic geneticsauthors
Khan R,Shabbir RMK,Raza I,Abdullah U,Naeem MA,Ahmed A,Malik S,Hu Z,Xia Kdoi
10.1080/13816810.2019.1709124subject
Has Abstractpub_date
2020-02-01 00:00:00pages
7-12issue
1eissn
1381-6810issn
1744-5094journal_volume
41pub_type
杂志文章abstract:PURPOSE:To describe and compare ocular findings in patients with Hermansky-Pudlak syndrome (HPS) type 1 and 3. METHODS:This is a retrospective case series of 64 patients with HPS from 1999 to 2009 evaluated at an outpatient private ophthalmologic clinic. Patients underwent genetic analysis of selected albinism (Tyrosi...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2014.907920
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Alström syndrome is a rare genetic ciliopathy caused by a mutation in the ALMS1 gene. The syndrome is characterized by cone-rod dystrophy, dilated myocardiopathy, childhood obesity and sensorineural hearing loss. To date, cystoid macular edema has not been reported. METHODS:A female affected by Alström synd...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2015.1094493
更新日期:2016-12-01 00:00:00
abstract::The autoinflammatory syndromes are rare inherited disorders characterized by recurrent attacks of multi-system inflammation caused by genetic mutations that result in abnormal upregulation of key innate immune mediators. The term autoinflammatory syndromes includes a broad variety of disorders, including cryopyrin-ass...
journal_title:Ophthalmic genetics
pub_type: 杂志文章,评审
doi:10.3109/13816810.2012.695421
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:This study was undertaken with the objective to investigate the potential involvement of VAX2 in retinal degeneration. METHODS:A cohort of macular and cone dystrophy patients (n = 70) was screened for variant identification. Polymerase chain reaction (PCR) products were purified using ExoSAP-IT. Direct seque...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2018.1484927
更新日期:2018-08-01 00:00:00
abstract::Because mutations in the peripherin/RDS gene have been found in retinal dystrophies involving the macula, we examined various types of macular dystrophies from southern France to characterize sequence variations that may be associated with these conditions. DNA sequence analysis of the full coding and flanking regions...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816819709057126
更新日期:1997-09-01 00:00:00
abstract::Mutations in the peripherin/RDS gene have been identified in families with various retinopathies including those affecting primarily the macula and those restricted to the retinal periphery. Here, we describe the clinical findings of two sisters with late-onset central areolar choroidal dystrophy (CACD). The two sibli...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810600976822
更新日期:2006-12-01 00:00:00
abstract::Photoaversion is a prominent symptom of a number of infantile genetic ocular disorder such as congenital glaucoma, aniridia, albinism, and cone dystrophies including achromatopsia. Photoaversion has not been widely recognized as a clinical feature of Leber's congenital amaurosis. We present two patients who were diagn...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816819509057851
更新日期:1995-03-01 00:00:00
abstract:PURPOSE:Phototherapeutic keratectomy (PTK) with 193-nm excimer laser is a safe and effective procedure for the treatment of superficial corneal pathology. We aimed to review the use of PTK for the treatment of corneal macular dystrophy (MCD). METHODS:Case report and literature review. RESULTS:A 16-year-old boy presen...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1776335
更新日期:2020-08-01 00:00:00
abstract::Purpose: To report novel mutations in the FZD4 and LRP5 genes, associated with familial exudative vitreoretinopathy (FEVR), and to correlate with clinical features of 7 FEVR patients. Methods: In this retrospective case series, 7 patients who had undergone genetic panel testing and carried a diagnosis of FEVR were ide...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1855664
更新日期:2020-12-10 00:00:00
abstract:PURPOSE:To characterize a Chinese family with inherited retinitis pigmentosa (RP). METHODS:Linkage studies and haplotype analysis were used for gene mapping, and single-strand conformation polymorphism (SSCP) analysis and direct DNA sequence analysis were used for identifying the responsible mutation. RESULTS:Pedigre...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.22.3.187.2221
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Functional polymorphisms in genes encoding antioxidant enzymes may result in reduced enzyme activity and increased levels of reactive oxygen species, such as superoxide radicals, which in turn may contribute to increased risk of age-related disorders. Copper-zinc superoxide dismutases, SOD-1 and SOD-3, and m...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2012.746377
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:To describe a family with X-linked congenital nystagmus and identify the genetic interval within which the gene is located. METHODS AND DESIGN:Clinical examination with genotyping of 30 individuals from a multi-generational Caucasian family with congenital nystagmus inherited in an X-linked pattern using marke...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.22.4.241.2216
更新日期:2001-12-01 00:00:00
abstract::Aicardi syndrome was originally described as a triad of partial or complete agenesis of the corpus callosum, infantile spasms, and pathognomic chorioretinal lacunae. Of approximately 200 cases reported since it was originally described in 1965, there have been no undisputed reports of Aicardi syndrome in a 46 XY male....
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810802320209
更新日期:2008-12-01 00:00:00
abstract:PURPOSE:To identify the mutation in the RB1 gene in a Syrian family showing incomplete penetrance of retinoblastoma (RB). METHODS:Genomic DNA was used as a template for the PCR reaction to amplify all exons as well as the promoter region of RB1 gene. These PCR products were screened by conformational sensitive gel ele...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.20.4.225.2269
更新日期:1999-12-01 00:00:00
abstract::Background: Chromosomal deletion involving the 6p25 region results in a clinically recognizable syndrome characterized by anterior eye chamber anomalies with risk of glaucoma and non-ocular malformations (6p25 deletion syndrome). We report a newborn infant case of childhood glaucoma with a combination of partial monos...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1744019
更新日期:2020-04-01 00:00:00
abstract::Background Microcephaly and chorioretinopathy (MCCRP) is a rare neuro-ophthalmologic disorder that causes microcephaly and chorioretinopathy. In a recessive inheritance pattern, there are three types: MCCRP1; MCCRP2 and MCCRP3. MCCRP3 results from pathogenic variants in the tubulin-gamma complex-associated protein 4 (...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1747084
更新日期:2020-04-01 00:00:00
abstract::Etiological investigation of a 15-year-old boy with left ophthalmic artery occlusion led us to a diagnosis of neurofibromatosis type I as there were numerous large cafe-au-lait spots, axillary freckling, and brain MRI changes consistent with a hamartoma. In light of the present case, ophthalmic artery occlusion may be...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.19.2.87.2322
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:Fuchs' endothelial corneal dystrophy (FECD) is a complex degenerative disease of the corneal endothelium with genetic predisposition. Pathogenic rare variants have been identified in SLC4A11, LOXHD1, ZEB1, and AGBL1. Association of single nucleotide polymorphisms (SNPs) and CTG trinucleotide repeat expansion...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2018.1474367
更新日期:2018-08-01 00:00:00
abstract::Retinitis Pigmentosa (RP) is a major cause of heritable human blindness with a high genetic heterogeneity. It is characterized by the initial degeneration of rod photoreceptors followed by cone photoreceptors. RP is also a prominent reason of visual impairment, by a global prevalence of 1:4000. RP is usually specified...
journal_title:Ophthalmic genetics
pub_type: 杂志文章,评审
doi:10.1080/13816810.2019.1675178
更新日期:2019-10-01 00:00:00
abstract::This review will cover the state of the field in retinal degeneration and gene therapy with a focus on the great strides that have been made in retina gene therapy. Topics ranging from the development of animal models to clinical trials (for the treatment of Leber congenital amaurosis, age-related macular degeneration...
journal_title:Ophthalmic genetics
pub_type: 杂志文章,评审
doi:10.1080/13816810701503707
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Axenfeld-Rieger syndrome is characterized by a spectrum of anterior segment dysgenesis involving neural-crest-derived tissues, most commonly secondary to mutations in the transcription factor genes PITX2 and FOXC1. MATERIALS AND METHODS:Single retrospective case report. RESULTS:A full-term infant presented...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1768556
更新日期:2020-08-01 00:00:00
abstract::A Swedish family with choroideremia and a deletion of the CHM gene has been studied with ophthalmological examination, full-field electroretinography, and DNA analysis in order to characterize the phenotype of the disease. Although all four patients studied had a complete deletion of the gene, they showed a considerab...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816819509057855
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVES:Williams-Beuren Syndrome (WBS) is a multisystem disorder caused by the deletion of contiguous genes on chromosome 7q11.23. Ophthalmologic abnormalities and deficits in visual motor integration are important features of WBS. Here we describe our experience with Brazilian WBS patients and their ophthalmologic ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2013.873941
更新日期:2015-01-01 00:00:00
abstract::Background: Patients with intellectual disability syndromes frequently have coexisting abnormalities of ocular structures and the visual pathway system. The microphthalmos, anophthalmos, and coloboma (MAC) spectrum represent structural developmental eye defects that occur as part of a syndrome in one-third of cases. O...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2019.1686158
更新日期:2019-12-01 00:00:00
abstract::Background: Hydroxychloroquine retinal toxicity can occur in up to 7.5% of patients receiving treatment; however, possible genetic risk factors are poorly understood. The main objective of the study was to explore candidate genetic risk factors for retinal toxicity.Materials and Methods: Case-control study of patients...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1747093
更新日期:2020-04-01 00:00:00
abstract::A 6-month-old boy presented with a congenital eye movement disorder consistent with congenital fibrosis of the extraocular muscles type 1 (CFEOM1). Mutational analysis confirmed the most common mutation in the CFEOM1 gene KIF21A. In addition to the typical findings in CFEOM1, distinctive conjunctival changes and small...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810802697473
更新日期:2009-06-01 00:00:00
abstract::A genetic register for inherited retinal degenerative disorders (RDDs) has been established at the Division of Human Genetics, UCT Medical School, Cape Town, South Africa. The primary role of the register is to monitor the progress of molecular research and to facilitate the efficient delivery of services, including g...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.23.1.61.2207
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The retinal features of Alport syndrome include a central and peripheral fleck retinopathy, temporal retinal thinning, and a macular hole. Here we describe further retinal abnormalities. METHODS:We identified a case of bull's eye maculopathy 20 years previously in a 68-year-old female, and re...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2016.1210648
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disorder characterized by benign hamartomas occurring in multiple organ systems including the brain, kidneys, heart, lungs, liver, skin, and the eyes. Typical retinal findings associated with TSC include astrocytic hamartoma and achromic patch...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1755989
更新日期:2020-08-01 00:00:00
abstract::Background: Classical MMA, caused by methylmalonyl-CoA mutase deficiency, may result in late-onset dysfunction in several organ systems. To date, 10 cases of optic neuropathy have been reported. The prevalence of optic neuropathy in visually asymptomatic patients has not been determined. This study sought to identify ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2019.1634740
更新日期:2019-08-01 00:00:00