Cited by 39Retinal Development and DisordersRetinal Diseases and TreatmentsOcular Diseases and Behçet’s Syndrome

Multimodal fundus imaging in fundus albipunctatus with RDH5 mutation: a newly identified compound heterozygous mutation and review of the literature

Wang, Nan-Kai, Chuang, Lan-Hsin, Lai, Chi-Chun, Chou, Chai Lin, Chu, Hsueh-Yen, Yeung, Ling, Chen, Yen-Po, Chen, Kuan-Jen +4 more·2012·Documenta Ophthalmologica

Abstract

The aim of this study was to describe multimodal retinal imaging of fundus albipunctatus (FA) with the newly identified compound heterozygous RDH5 mutation and to review the relevant literature. Five family members were examined, and the RDH5 gene was analyzed by direct sequencing. The clinical features and genetic study of FA are reviewed. The proband had a compound heterozygotic missense mutation of Cys59Ser (TGC → AGC) and a nonsense mutation of Trp95ter (TGG → TGA) in the RDH5 gene. Fundus examination revealed diffuse yellow flecks with foveal sparing. Infrared reflectance (IR) imaging showed multiple discrete round lesions, and fundus autofluorescence (FAF) imaging showed decreased autofluorescence. In spectral domain optical coherence tomography (SD-OCT), the lesions spanned across the retinal pigment epithelium complex and the photoreceptor inner segment ellipsoid band. The outer nuclear layer thickness is decreased compared to normal control. Electroretinography (ERG) showed improved dark-adapted responses after a prolonged 2.5-h dark adaptation. The fundi of the patient's son and daughter both appeared unremarkable. The clinical findings, differential diagnosis, and genetic studies of these features are reviewed. This is the first time that IR imaging of this disease has been reported; IR imaging showed more detail than did FAF imaging. Although retinal imaging (fundus photographs, FAF, IR, SD-OCT) of FA showed characteristic findings, ERG and genetic study remain the most reliable tests for making the diagnosis.

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Crossref · 10.1007/s10633-012-9336-z

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  • Reduced fundus autofluorescence can also be found in retinal diseases with impaired function of enzymes involved in the conversion of all-trans-retinol into 11-cis-retinal in RPE cells, including RPE65, LRAT, RLBP1, RDH5 and RDH11.

    “Reduced FAF can also be found in retinal diseases with impaired function of enzymes, involved in the conversion of all-trans-retinol into 11-cis-retinal in RPE cells. These enzymes include RPE65, LRAT, RLBP1, RDH5 and RDH11 [87,89].”

    From The Role of Vitamin A in Retinal Diseases (2022) · cites this paper as [89]

  • Impaired 11-cis-retinal production leads to decreased A2E and lipofuscin formation, resulting in reduced autofluorescence in FAF images.

    “Impaired 11-cis-retinal production also leads to decreased A2E and lipofuscin formation, which results in reduced autofluorescence in FAF images [87,89,139,140,141].”

    From The Role of Vitamin A in Retinal Diseases (2022) · cites this paper as [89]

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Authors
Wang, N.-K., Chuang, L.-H., Lai, C.-C., Chou, C. L., Chu, H.-Y., Yeung, L., Chen, Y.-P., Chen, K.-J., Wu, W.-C., Chen, T.-L., Chao, A.-N., & Hwang, Y.-S.
Affiliations
  • Chang Gung University (TW)
  • University of British Columbia (CA)
Corresponding author
Wang, Nan-Kai
Venue
Documenta Ophthalmologica
Published
2012-06-06
Volume
125
Issue
1
Pages
51-62
ISSN
  • 0012-4486 (ISSN-L)
  • 1573-2622
OpenAlex
W2021507777
Cited by
39
References
48
Citations by year
2026: 1 · 2024: 2 · 2023: 2 · 2022: 8 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 2 · 2017: 5 · 2016: 2 · 2015: 2 · 2014: 6 · 2013: 3
FWCI
1.42
Type
journal article
Language
en
Open access
closed
Locations
  • Documenta Ophthalmologica (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Council
  • Chang Gung Medical Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
Keywords
fundus albipunctatus, compound heterozygosity, retinal degeneration, infrared reflectance imaging, fundus autofluorescence, spectral-domain optical coherence tomography, outer nuclear layer thickness, electroretinogram, retinal pigment epithelium, photoreceptor degeneration, genetic diagnosis
MeSH terms
Adolescent, Adult, Aged, Alcohol Oxidoreductases, Amino Acid Sequence, Carrier Proteins, Child, Dark Adaptation, DNA Mutational Analysis, Electroretinography, Female, Heterozygote, Humans, Male, Middle Aged, Molecular Sequence Data, Mutation, Night Blindness, Ophthalmoscopy, Pedigree, Retina, Retinal Degeneration, Vision, Ocular, Polymerase Chain Reaction, Tomography, Optical Coherence

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