Evidence map›Paper›PMID 23150612›Full record

ArticleInvestigative ophthalmology & visual science2012

Mutations in RPGR and RP2 account for 15% of males with simplex retinal degenerative disease.

Kari Branham, Mohammad Othman, Matthew Brumm, Athanasios J Karoukis, Pelin Atmaca-Sonmez, Beverly M Yashar, Sharon B Schwartz, Niamh B Stover, Karmen Trzupek, Dianna Wheaton and 15 more

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

85 citing papers in PubMed, 1 synthesis or guideline pooled it, 126 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Review
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  6. Article
  7. Insights IntoHuman mutation · 2026
    Review
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  18. Cold Spring Harbor perspectives in medicine · 2023
    Review
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25 more citing papers are in PubMed but not listed here.

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

25 authors at 10 institutions in 3 countries.

Kari BranhamDepartment of Ophthalmology and Visual Sciences, University of Michigan, Kellogg Eye Center, Ann Arbor, Michigan 48105, USA.
Mohammad Othman
Matthew Brumm
Athanasios J Karoukis
Pelin Atmaca-Sonmez
Beverly M Yashar
Sharon B Schwartz
Niamh B Stover
Karmen Trzupek
Dianna Wheaton
Barbara Jennings
Maria Laura Ciccarelli
K Thiran Jayasundera
Richard A Lewis
David Birch
Jean Bennett
Paul A Sieving
Sten Andreasson
Jacque L Duncan
Gerald A Fishman
Alessandro Iannaccone
Richard G Weleber
Samuel G Jacobson
John R Heckenlively
Anand Swaroop
University of Michigan–Ann Arbor · USOregon Health & Science University · USUniversity of Pennsylvania · USRetina Foundation of the Southwest · USUniversity of Tennessee Health Science Center · USBaylor College of Medicine · USLund University · SEOspedale Israelitico · ITUniversity of California, San Francisco · USUniversity of Illinois Chicago · US

Funding

Retinal aging and inherited neurodegenerative diseasesZIAEY000473 · NEI · NATIONAL EYE INSTITUTE · PI SWAROOP, ANAND · 2009 to 2014
$16.2M
X-LINKED RETINITIS PIGMENTOSAR01EY007961 · NEI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KHANNA, HEMANT · 1994 to 2009
$4.3M
X-LINKED OCULAR ALBINISM &RETINITIS PIGMENTOSAR29EY007961 · NEI · YALE UNIVERSITY · PI SWAROOP, ANAND · 1989 to 1993
–
NEI NIH HHS NIH-EY007961NEI NIH HHS R01 EY007961NEI NIH HHS ZO1 EY000473
6 · The paper itself

Abstract

purposeTo determine the proportion of male patients presenting simplex retinal degenerative disease (RD: retinitis pigmentosa [RP] or cone/cone-rod dystrophy [COD/CORD]) with mutations in the X-linked retinal degeneration genes RPGR and RP2.

methodsSimplex males were defined as patients with no known affected family members. Patients were excluded if they had a family history of parental consanguinity. Blood samples from a total of 214 simplex males with a diagnosis of retinal degeneration were collected for genetic analysis. The patients were screened for mutations in RPGR and RP2 by direct sequencing of PCR-amplified genomic DNA.

resultsWe identified pathogenic mutations in 32 of the 214 patients screened (15%). Of the 29 patients with a diagnosis of COD/CORD, four mutations were identified in the ORF15 mutational hotspot of the RPGR gene. Of the 185 RP patients, three patients had mutations in RP2 and 25 had RPGR mutations (including 12 in the ORF15 region).

conclusionsThis study represents mutation screening of RPGR and RP2 in the largest cohort, to date, of simplex males affected with RP or COD/CORD. Our results demonstrate a substantial contribution of RPGR mutations to retinal degenerations, and in particular, to simplex RP. Based on our findings, we suggest that RPGR should be considered as a first tier gene for screening isolated males with retinal degeneration.

Indexed as

MutationDNA Mutational AnalysisEye ProteinsFemaleGenetic Diseases, X-LinkedGenetic TestingGTP-Binding ProteinsHumansIntracellular Signaling Peptides and ProteinsMaleMembrane ProteinsPedigreeRandom Amplified Polymorphic DNA TechniqueRegistriesRetinitis PigmentosaSex DistributionEye ProteinsGTP-Binding ProteinsIntracellular Signaling Peptides and ProteinsMembrane ProteinsRP2 protein, humanRPGR protein, human

Identifiers

PMID23150612
PMCPMC3522443
OpenAlexW2068123498

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.