Evidence map›Paper›PMID 35076026›Full record

Observational studyJCI insight2022

Photoreceptor degeneration in ABCA4-associated retinopathy and its genetic correlates.

Maximilian Pfau, Catherine A Cukras, Laryssa A Huryn, Wadih M Zein, Ehsan Ullah, Marisa P Boyle, Amy Turriff, Michelle A Chen, Aarti S Hinduja, Hermann Ea Siebel and 3 more

2 registry-linked trialsOpen access · goldAbstract readObservational Study
In one paragraph

Observational study in JCI insight, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01736293 active not recruitingnot on this map

Natural History of ABCA4-Related Retinopathies

TypeobservationalSponsorNational Eye Institute (NEI)Ran2012Enrolled68ConditionsRetinal Degeneration, ABCA4-Related Retinopathies
NCT05674058 active not recruitingnot on this map

Function and Imaging Assessments for G1961E-associated Stargardt Disease: Outcome Measure Ranking as Basis for Interventional Trials

TypeobservationalSponsorUniversity Hospital, Basel, SwitzerlandRan2022 to 2025Enrolled20ConditionsStargardt Disease, Stargardt Disease 1, Fundus Flavimaculatus, Macular Degeneration, StargardtArmsNo intervention
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. ABCA4 c.5461-6T>C Causes Stargardt Disease Through Exon Skipping.Advances in experimental medicine and biology · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
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

13 authors at 1 institution in 2 countries.

Maximilian PfauNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Catherine A CukrasNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Laryssa A HurynNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Wadih M ZeinNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Ehsan UllahNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Marisa P BoyleNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Amy TurriffNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Michelle A ChenNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Aarti S HindujaNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Hermann Ea SiebelNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Robert B HufnagelNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Brett G JeffreyNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
Brian P BrooksNational Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
National Institutes of Health · US

Funding

Clinical ophthalmic molecular diagnostics and discoveryZIAEY000564 · NEI · NATIONAL EYE INSTITUTE · PI GUAN, BIN · 2019 to 2025
$7.9M
Natural History of ABCA4-Related RetinopathiesZIAEY000534 · NEI · NATIONAL EYE INSTITUTE · PI BROOKS, BRIAN · 2013 to 2025
$5.3M
6 · The paper itself

Abstract

BACKGROUNDOutcome measures sensitive to disease progression are needed for ATP-binding cassette, sub-family A, member 4-associated (ABCA4-associated) retinopathy. We aimed to quantify ellipsoid zone (EZ) loss and photoreceptor degeneration beyond EZ-loss in ABCA4-associated retinopathy and investigate associations between photoreceptor degeneration, genotype, and age.METHODSWe analyzed 132 eyes from 66 patients (of 67 enrolled) with molecularly confirmed ABCA4-associated retinopathy from a prospective natural history study with a median [IQR] follow-up of 4.2 years [3.1, 5.1]. Longitudinal spectral-domain optical coherence tomography volume scans (37 B-scans, 30° × 15°) were segmented using a deep learning (DL) approach. For genotype-phenotype analysis, a model of ABCA4 variants was applied with the age of criterion EZ-loss (6.25 mm2) as the dependent variable.RESULTSPatients exhibited an average (square-root-transformed) EZ-loss progression rate of [95% CI] 0.09 mm/y [0.06, 0.11]. Outer nuclear layer (ONL) thinning extended beyond the area of EZ-loss. The average distance from the EZ-loss boundary to normalization of ONL thickness (to ±2 z score units) was 3.20° [2.53, 3.87]. Inner segment (IS) and outer segment (OS) thinning was less pronounced, with an average distance from the EZ-loss boundary to layer thickness normalization of 1.20° [0.91, 1.48] for the IS and 0.60° [0.49, 0.72] for the OS. An additive model of allele severity explained 52.7% of variability in the age of criterion EZ-loss.CONCLUSIONPatients with ABCA4-associated retinopathy exhibited significant alterations of photoreceptors outside of EZ-loss. DL-based analysis of photoreceptor laminae may help monitor disease progression and estimate the severity of ABCA4 variants.TRIAL REGISTRATIONClinicalTrials.gov identifier: NCT01736293.FUNDINGNational Eye Institute Intramural Research Program and German Research Foundation grant PF950/1-1.

Indexed as

ATP-Binding Cassette TransportersPhotoreceptor Cells, VertebrateRetinal DegenerationAge FactorsDeep LearningDisease ProgressionElectroretinographyFemaleFollow-Up StudiesGenetic Association StudiesHumansMaleMiddle AgedRetinaRod Cell Outer SegmentSeverity of Illness IndexABCA4 protein, humanATP-Binding Cassette TransportersGenetic diseasesOphthalmologyRetinopathy

Identifiers

PMID35076026
PMCPMC8855828
OpenAlexW4206945062

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.