Evidence map›Paper›PMID 33372982›Full record

ArticleInvestigative ophthalmology & visual science2020

Spectrum of Disease Severity in Patients With X-Linked Retinitis Pigmentosa Due to RPGR Mutations.

Valentina Di Iorio, Marianthi Karali, Paolo Melillo, Francesco Testa, Raffaella Brunetti-Pierri, Francesco Musacchia, Christel Condroyer, John Neidhardt, Isabelle Audo, Christina Zeitz and 2 more

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.3field-weighted citation impact, top 19% 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.

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

35 citing papers in PubMed, 40 citations in OpenAlex.

  1. Aetiology, characteristics and workup of early onset high myopia.The British journal of ophthalmology · 2026
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  5. Zoological research · 2026
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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

12 authors at 6 institutions in 4 countries.

Valentina Di IorioEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
Marianthi KaraliEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
Paolo MelilloEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
Francesco TestaEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
Raffaella Brunetti-PierriEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
Francesco MusacchiaTelethon Institute of Genetics and Medicine, Pozzuoli, Italy.
Christel CondroyerSorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France.
John NeidhardtHuman Genetics, Faculty of Medicine and Health Sciences, University of Oldenburg, Oldenburg, Germany.
Isabelle AudoSorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France.
Christina ZeitzSorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France.
Sandro BanfiTelethon Institute of Genetics and Medicine, Pozzuoli, Italy.
Francesca SimonelliEye Clinic, Multidisciplinary Department of Medical, Surgical and Dental Sciences, Università degli Studi della Campania "Luigi Vanvitelli," Naples, Italy.
University of Campania "Luigi Vanvitelli" · ITTelethon Institute Of Genetics And Medicine · ITCarl von Ossietzky Universität Oldenburg · DECentre National de la Recherche Scientifique · FRInstitut de la Vision · FRSorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: The purpose of this study was to perform a detailed longitudinal phenotyping of X-linked retinitis pigmentosa (RP) caused by mutations in the RPGR gene during a long follow-up period. Methods: An Italian cohort of 48 male patients (from 31 unrelated families) with RPGR-associated RP was clinically assessed at a single center (mean follow-up = 6.5 years), including measurements of best-corrected visual acuity (BCVA), Goldmann visual field (GVF), optical coherence tomography (OCT), fundus autofluorescence (FAF), microperimetry, and full-field electroretinography (ERG). Results: Patients (29.6 ± 15.2 years) showed a mean BCVA of 0.6 ± 0.7 logMAR, mostly with myopic refraction (79.2%). Thirty patients (62.5%) presented a typical RP fundus, while the remaining sine pigmento RP. Over the follow-up, BCVA significantly declined at a mean rate of 0.025 logMAR/year. Typical RP and high myopia were associated with a significantly faster decline of BCVA. Blindness was driven primarily by GVF loss. ERG responses with a rod-cone pattern of dysfunction were detectable in patients (50%) that were significantly younger and more frequently presented sine pigmento RP. Thirteen patients (27.1%) had macular abnormalities without cystoid macular edema. Patients (50%) with a perimacular hyper-FAF ring were significantly younger, had a higher BCVA and a better-preserved ellipsoid zone band than those with markedly decreased FAF. Patients harboring pathogenic variants in exons 1 to 14 showed a milder phenotype compared to those with ORF15 mutations. Conclusions: Our monocentric, longitudinal retrospective study revealed a spectrum disease progression in male patients with RPGR-associated RP. Slow disease progression correlated with sine pigmento RP, absence of high myopia, and mutations in RPGR exons 1 to 14.

Indexed as

AdultChromosomes, Human, XElectroretinographyEye ProteinsFundus OculiGenetic Association StudiesHigh-Throughput Nucleotide SequencingHumansLongitudinal StudiesMaleMutationRetinitis PigmentosaSeverity of Illness IndexTomography, Optical CoherenceVisual AcuityVisual FieldsEye ProteinsRPGR protein, human

Identifiers

PMID33372982
PMCPMC7774109
OpenAlexW3114939203

What OpenQuestion holds

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LicenceCC BY
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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.