Evidence map›Paper›PMID 35170407›Full record

ArticleCurrent gene therapy2022

Clinical Observation and Genotype-Phenotype Analysis of ABCA4- Related Hereditary Retinal Degeneration before Gene Therapy.

Xuan Xiao, Lin Ye, Changzheng Chen, Hongmei Zheng, Jiajia Yuan

Open access · hybridAbstract read
In one paragraph

Article in Current gene therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 50% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 3 citations in OpenAlex.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Xuan XiaoEye Center, Renmin Hospital of Wuhan University, Wuhan University, Hubei, Wuhan 430060, China.
Lin YeDepartment of Eye Plastic and Lacrimal Diseases, Shenzhen Eye Hospital, Shenzhen, China.
Changzheng ChenEye Center, Renmin Hospital of Wuhan University, Wuhan University, Hubei, Wuhan 430060, China.
Hongmei ZhengEye Center, Renmin Hospital of Wuhan University, Wuhan University, Hubei, Wuhan 430060, China.
Jiajia YuanEye Center, Renmin Hospital of Wuhan University, Wuhan University, Hubei, Wuhan 430060, China.
Renmin Hospital of Wuhan University · CNWuhan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHereditary retinal degeneration (HRD) is an irreversible eye disease that results in blindness in severe cases. It is most commonly caused by variants in the ABCA4 gene. HRD presents a high degree of clinical and genetic heterogeneity. We determined genotypic and phenotypic correlations, in the natural course of clinical observation, of unrelated progenitors of HRD associated with ABCA4.

objectiveTo analyze the relationship between the phenotypes and genotypes of ABCA4 variants.

methodsA retrospective clinical study of five cases from the ophthalmology department of the People's Hospital of Wuhan University from January 2019 to October 2020 was conducted. We tested for ABCA4 variants in the probands. We performed eye tests, including the best-corrected visual acuity, super-wide fundus photography and spontaneous fluorescence photography, optical coherence tomography, and electrophysiological examination.

resultsDisease-causing variants were identified in the ABCA4 genes of all patients. Among these, seven ABCA4 variants were novel. All patients were sporadic cases; only one patient had parents who were relatives, and the other four patients were offspring of unrelated parents. Two patients presented with Stargardt disease, mainly with macular lesions, two presented with retinitis pigmentosa (cone-rod type), and one presented with cone dystrophy. The visual acuity and visual field of the five patients showed varying degrees of deterioration and impairment.

conclusionThe same ABCA4 mutation can lead to different clinical phenotypes, and there is variation in the degree of damage to vision, visual field, and electrophysiology among different clinical phenotypes. Clinicians must differentiate between and diagnose pathologies resulting from this mutation.

Indexed as

ATP-Binding Cassette TransportersRetinal DegenerationGenetic TherapyGenotypeHumansMutationPhenotypeRetrospective StudiesABCA4 protein, humanATP-Binding Cassette TransportersABCA4cone cell malnutritioncone-rod dystrophyretinal degenerationretinitis pigmentosa (cone type)stargardt disease

Identifiers

PMID35170407
PMCPMC10495610
OpenAlexW4212785434

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.