Evidence map›Paper›PMID 24959064›Full record

ArticleMolecular vision2014

Reappearance of the tapetal-like reflex after prolonged dark adaptation in a female carrier of RPGR ORF15 X-linked retinitis pigmentosa.

Jesper Bregnhøj, Sermed Al-Hamdani, Birgit Sander, Michael Larsen, Patrik Schatz

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In one paragraph

Article in Molecular vision, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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.

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

2 citing papers in PubMed.

  1. Article
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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.

Jesper BregnhøjDepartment of Ophthalmology, Glostrup Hospital, University of Copenhagen, Denmark ; National Eye Clinic for the Visually Impaired and Kennedy Center, Glostrup, Denmark.
Sermed Al-HamdaniDepartment of Ophthalmology, Glostrup Hospital, University of Copenhagen, Denmark ; National Eye Clinic for the Visually Impaired and Kennedy Center, Glostrup, Denmark.
Birgit SanderDepartment of Ophthalmology, Glostrup Hospital, University of Copenhagen, Denmark ; Faculty of Health Sciences, University of Copenhagen, Denmark.
Michael LarsenDepartment of Ophthalmology, Glostrup Hospital, University of Copenhagen, Denmark ; National Eye Clinic for the Visually Impaired and Kennedy Center, Glostrup, Denmark ; Faculty of Health Sciences, University of Copenhagen, Denmark.
Patrik SchatzDepartment of Ophthalmology, Glostrup Hospital, University of Copenhagen, Denmark ; National Eye Clinic for the Visually Impaired and Kennedy Center, Glostrup, Denmark ; Department of Ophthalmology, Clinical Sciences, Scane County University Hospital, Lund, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo report changes in the tapetal-like reflex in a female carrier of RPGR ORF15 c.3395delA X-linked retinitis pigmentosa (XLRP) between examinations at 16 and 22 years of age, and to report the observation that the tapetal-like reflex faded due to exposure to daylight and reappeared with prolonged dark adaptation at 22 years of age.

methodsClinical examination, kinetic Goldmann perimetry, dark adaptometry, fundus autofluorescence photography, spectral domain optical coherence tomography (SD-OCT), full-field electroretinography (ffERG), and multifocal electroretinography (mfERG) were performed.

resultsA female carrier of RPGR XLRP presented with a tapetal-like reflex at age 16. At age 22, the tapetal-like reflex was absent upon examination in daylight; however, the reflex reappeared after 12 h of dark adaptation. Fundus autofluorescence was unremarkable and did not change after prolonged dark adaptation. Full-field electroretinography and dark adaptometry at age 22 demonstrated reduced rod and cone function compared to at age 16.

conclusionsDark adaptation before fundus photography may enable the detection of a tapetal-like reflex where it is otherwise invisible. The light-dependent fluctuation of a disease-related substance in the photoreceptors should prompt further study of the potential role of light as a modulator of the progression of RPGR XLRP.

Indexed as

ChildDark AdaptationElectroretinographyEye ProteinsFamilyFemaleFundus OculiGenetic Diseases, X-LinkedHeterozygoteHumansMaleOpen Reading FramesPedigreeReflexRetinitis PigmentosaTomography, Optical CoherenceEye ProteinsRPGR protein, human

Identifiers

PMID24959064
PMCPMC4063355

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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.