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Published in: Orphanet Journal of Rare Diseases 1/2019

Open Access 01-12-2019 | Pigmentary Retinopathy | Research

Comparison of structural progression between ciliopathy and non-ciliopathy associated with autosomal recessive retinitis pigmentosa

Authors: Vitor K. L. Takahashi, Christine L. Xu, Júlia T. Takiuti, Mary Ben L. Apatoff, Jimmy K. Duong, Vinit B. Mahajan, Stephen H. Tsang

Published in: Orphanet Journal of Rare Diseases | Issue 1/2019

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Abstract

Background

To evaluate and compare the progression of ciliopathy and non-ciliopathy autosomal recessive Retinitis Pigmentosa patients (arRP) by measuring the constriction of hyperautofluorescent rings in fundus autofluorescence (FAF) images and the progressive shortening of the ellipsoid zone line width obtained by spectral-domain optical coherence tomography (SD-OCT).

Results

For the ciliopathy group, the estimated mean shortening of the ellipsoid zone line was 259 μm per year and the ring area decreased at a rate of 2.46 mm2 per year. For the non-ciliopathy group, the estimated mean shortening of the ellipsoid zone line was 84 μm per year and the ring area decreased at a rate of 0.7 mm2 per year.

Conclusions

Our study was able to quantify and compare the loss of EZ line width and short-wavelength autofluorescence (SW-AF) ring constriction progression over time for ciliopathy and non-ciliopathy arRP genes. These results may serve as a basis for modeling RP disease progression, and furthermore, they could potentially be used as endpoints in clinical trials seeking to promote cone and rod survival in RP patients.
Literature
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go back to reference Iannaccone B, Wang K, Normando F, Baldi H, Macdonald CB, Baldi F, Cosgrove D, Morton CC, Swaroop A, Jablonski MM. Clinical and immunohistochemical evidence for an X linked retinitis pigmentosa syndrome with recurrent infections and hearing loss in association with an RPGR mutation. J Med Genet. 2003. https://doi.org/10.1136/jmg.40.11.e118.CrossRef Iannaccone B, Wang K, Normando F, Baldi H, Macdonald CB, Baldi F, Cosgrove D, Morton CC, Swaroop A, Jablonski MM. Clinical and immunohistochemical evidence for an X linked retinitis pigmentosa syndrome with recurrent infections and hearing loss in association with an RPGR mutation. J Med Genet. 2003. https://​doi.​org/​10.​1136/​jmg.​40.​11.​e118.CrossRef
Metadata
Title
Comparison of structural progression between ciliopathy and non-ciliopathy associated with autosomal recessive retinitis pigmentosa
Authors
Vitor K. L. Takahashi
Christine L. Xu
Júlia T. Takiuti
Mary Ben L. Apatoff
Jimmy K. Duong
Vinit B. Mahajan
Stephen H. Tsang
Publication date
01-12-2019
Publisher
BioMed Central
Published in
Orphanet Journal of Rare Diseases / Issue 1/2019
Electronic ISSN: 1750-1172
DOI
https://doi.org/10.1186/s13023-019-1163-9

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