Abstract:
:Background: The extensive phenotypic heterogeneity of monogenic diseases can be largely traced to intragenic variation; however, recent advances in clinical detection and gene sequencing have uncovered the emerging role of non-allelic variation (i.e. genetic trans-modifiers) in shaping disease phenotypes. Identifying these associations are not only of significant diagnostic value, but also provides scientific insight into the expanded molecular etiology of rare diseases. This reports describes the discordant clinical manifestation of a family segregating mutations in ABCA4 and PROM1. Methods: Three patients across a two generation family underwent multimodal imaging and functional testing of the retina including color photography, fundus autofluorescence (AF), spectral domain-optical coherence tomography (SD-OCT) and full-field electroretinography (ffERG). Genetic characterization was carried out by direct Sanger and whole exome sequencing. Results: Clinical examination revealed similar retinal degenerative phenotypes in the proband and her mother. Despite being younger, the proband's phenotype was more advanced and exhibited additional features related to Stargardt disease not found in the mother. Whole exome sequencing identified a pathogenic missense variant in PROM1, c.400C > T, p.(Arg134Cys), as the underlying cause of retinal disease in both the proband and mother. Sequencing of the ABCA4 locus uncovered a single disease-causing variant, c.5714 + 5G > A in the daughter segregating from the father who, surprisingly, also exhibited very subtle disease changes associated with STGD1 despite being a heterozygous carrier. Conclusions: Harboring an additional heterozygous ABCA4 mutation increases severity and confers STGD1-like features in patients with PROM1 disease which provides supporting evidence for their shared pathophysiology and potential treatment prospects.
journal_name
Ophthalmic Genetjournal_title
Ophthalmic geneticsauthors
Lee W,Paavo M,Zernant J,Stong N,Laurente Z,Bearelly S,Nagasaki T,Tsang SH,Goldstein DB,Allikmets Rdoi
10.1080/13816810.2019.1660382subject
Has Abstractpub_date
2019-08-01 00:00:00pages
369-375issue
4eissn
1381-6810issn
1744-5094journal_volume
40pub_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: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:PURPOSE:Age-related macular degeneration (AMD) as the leading cause of central visual loss in the developed countries has extensive pathologic similarities with Alzheimer's disease (AD). Saitohin rs62063857 Q7 R polymorphism is associated with increased risk of AD though we decided to evaluate the possible association ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1786842
更新日期:2020-10-01 00:00:00
abstract:BACKGROUND:Microphthalmia, anophthalmia, coloboma (MAC) complex is a spectrum of ocular abnormalities that occur in isolation or as part of a syndrome. Genetic abnormalities have been shown to account for 80% of cases in bilateral anophthalmia or severe microphthalmia, where 25-30% were attributed to chromosomal defect...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1776338
更新日期:2020-08-01 00:00:00
abstract::The electro-oculogram (EOG) was studied in 156 normal patients, 103 patients with Best's disease, and 52 patients with dominant cystoid macular dystrophy (DCMD). Statistical analysis was performed by comparing the distribution of Lp/Dt ratios of the groups. Strength of association between Lp/Dt ratio and age was studi...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816819609057112
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Nuclear hormone receptor gene, NR2E3, plays a critical role in retinogenesis and determination of the rod photoreceptor phenotype. Mutations in NR2E3 typically lead to recessive enhanced S-cone syndrome (ESCS), where affected individuals show higher sensitivity to short wavelength light and early onset rod d...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2018.1547912
更新日期:2019-02-01 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::Background: Inherited retinal dystrophies are a leading cause of irreversible blindness in children in the United States. Topical carbonic anhydrase inhibitors have improved central vision and cystoid macular edema in patients with retinal dystrophies, but few studies have assessed their efficacy in children. Material...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2019.1660381
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Age-related cataract (ARC) is profoundly associated with oxidative stress. Iron plays a pivotal role in generating oxidative stress and promoting deleterious irreversible damage to the macromolecules. Divalent metal transporter 1 (DMT1) mediates the uptake of iron into the cell. Aberrant transcript expressio...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2019.1582068
更新日期:2019-04-01 00:00:00
abstract:PURPOSE:To investigate the retinal structure and function during the progression of X-linked retinoschisis (XLRS) from childhood to adulthood. METHODS:Ten patients clinically diagnosed with XLRS were investigated at 6-15 years of age (mean age 9 years) with a follow-up 8 to 14 years later (mean 12 years). The patients...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2010.482555
更新日期:2010-09-01 00:00:00
abstract:PURPOSE:To clinically characterize a Swedish family with autosomal dominant retinitis pigmentosa due to a mutation, Arg-172-Trp, in the peripherin/RDS gene. METHODS:Full clinical evaluation including kinetic visual field testing, measurement of dark-adaptation threshold, and full-field electroretinography in seven pat...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.19.3.149.2186
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND:SPATA7 mutations have been associated with different autosomal recessive retinal degeneration phenotypes. Long-term follow-up has not been described in detail. MATERIALS AND METHODS:A Hispanic patient with SPATA7 mutations was evaluated serially over a 12-year period with kinetic and static chromatic perime...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2015.1130154
更新日期:2016-09-01 00:00:00
abstract:PURPOSE:To determine the cause of Leber congenital amaurosis (LCA) in a consanguineous Emirati family. METHODS:The clinical diagnosis was made on the basis of medical history, ophthalmoscopy and standard ERG. The diagnosis was confirmed by molecular genetic analysis of known LCA genes by Next-Generation Sequencing (NG...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2012.755552
更新日期:2013-12-01 00:00:00
abstract::We present the clinical and molecular genetic features of a large multi-generation Norwegian family with dominant cone-rod dystrophy. Ophthalmological evaluation including electroretinography showed cone dysfunction in younger patients, with rod dysfunction becoming apparent at more advanced stages of the disease. In ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract::A case report of Stickler's syndrome associated with congenital glaucoma is presented. Stickler's syndrome is an autosomal dominant disorder characterised by progressive arthropathy, midfacial flattening, Pierre Robin anomaly or cleft palate, sensorineural hearing loss, progressive myopia, vitreoretinal degeneration, ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1076/opge.19.1.55.2177
更新日期:1998-03-01 00:00:00
abstract::Fundal opacities have been reported in patients with Gaucher disease, a rare autosomal recessive lysosomal storage disease, prior to the advent of optical coherent tomography. This report provides a detailed analysis of the fundal opacities in a 14-year-old girl with genetically proven Gaucher disease using spectral d...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2012.716489
更新日期:2012-12-01 00:00:00
abstract::Patients with a deletion at the terminal end of chromosome 6p can present with a variety of ophthalmological and systemic malformations. In this paper we present two patients with this chromosomal anomaly and similar anterior eye-segment abnormalities. We also give an overview of the literature on the ophthalmological...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2015.1010735
更新日期:2015-06-01 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::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: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:PURPOSE:To characterize the underlying genetic defect in otherwise healthy Saudi newborns with buphthalmos, including those with iris abnormalities. METHODS:Prospective case series of affected Saudi Arabian probands who were referred for genetic counseling over a 4 year period. All had CYP1B1 sequencing. Selected pati...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.3109/13816810.2010.544365
更新日期:2011-09-01 00:00:00
abstract::Background: The present study aims to identify the underlying genetic defects in a Chinese family with autosomal dominant congenital cataracts (ADCC). Methods: Detailed family histories and clinical data were recorded. Targeted exome sequencing of 54 known cataract-associated genes combined with high-throughput next-g...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1855665
更新日期:2020-12-04 00:00:00
abstract:PURPOSE:The hexokinase 1 (HK1) gene encodes one of the four human hexokinases that play essential roles in glucose metabolism. Recently, several cases of E847K mutation in the HK1 gene were reported to cause inherited retinal dystrophy. The purpose of this study was to identify the phenotypical characteristics of patie...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1810284
更新日期:2020-12-01 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:BACKGROUND:Optic disc pit is a very rare clinical entity. The main complication of this condition is the maculopathy. Report of cases: A 40-year-old Caucasian man and his 6-year-old daughter underwent a complete ophthalmological examination. In both cases ophthalmoscopy examination showed a bilateral white-yellow oval ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2016.1188120
更新日期:2017-05-01 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::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:Cilioretinal arteries (CAs) represent enlargements of microscopic and early established collaterals formed via vasculogenesis between choroidal and retinal circulations. We aimed to investigate whether genetic tendency to thrombosis due to well-known gene polymorphisms may induce CA vasculogenesis in embryon...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2016.1253104
更新日期:2017-09-01 00:00:00
abstract::We present six patients with typical Hallermann-Streiff syndrome. All have microphthalmia and were operated for congenital cataract. Three of the patients developed a severe glaucoma and one patient presented repeated uveal effusions. Five of our patients have the same pattern of corneal stromal opacities. The opaciti...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810802027101
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Diabetic retinopathy (DR) is a severe complication of diabetes and a common cause of visual loss in adults. We aimed to assess the correlation between IL gene-related SNPs and the incidence of DR and attempted to predict DR with combined mutation site detection. METHODS:A systematic search of databases was ...
journal_title:Ophthalmic genetics
pub_type: 杂志文章
doi:10.1080/13816810.2020.1747091
更新日期:2020-06-01 00:00:00