Evidence map›Paper›PMID 25692141›Full record

Trial reportBioMed research international2015

Cone dystrophy in patient with homozygous RP1L1 mutation.

Sachiko Kikuchi, Shuhei Kameya, Kiyoko Gocho, Said El Shamieh, Keiichiro Akeo, Yuko Sugawara, Kunihiko Yamaki, Christina Zeitz, Isabelle Audo, Hiroshi Takahashi

Open access · hybridAbstract readCase ReportsClinical Trial
In one paragraph

Trial report in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

8 citing papers in PubMed, 22 citations in OpenAlex.

  1. Phenotypic and Genotypic Characterization of RP1L1-Associated Retinopathy.Investigative ophthalmology & visual science · 2025
    Article
  2. Review
  3. Article
  4. The research output of rod-cone dystrophy genetics.Orphanet journal of rare diseases · 2022
    Review
  5. Novel Missense and Splice Site Mutations inFrontiers in genetics · 2022
    Article
  6. Article
  7. Article
  8. 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

10 authors at 4 institutions in 2 countries.

Sachiko KikuchiDepartment of Ophthalmology, Nippon Medical School, Chiba Hokuso Hospital, Inzai, Chiba 270-1694, Japan.
Shuhei KameyaDepartment of Ophthalmology, Nippon Medical School, Chiba Hokuso Hospital, Inzai, Chiba 270-1694, Japan.ORCID 0000-0003-3962-3099
Kiyoko GochoDepartment of Ophthalmology, Nippon Medical School, Chiba Hokuso Hospital, Inzai, Chiba 270-1694, Japan.ORCID 0000-0002-9661-8993
Said El ShamiehINSERM, U968, 75012 Paris, France ; Sorbonne Universités, UPMC Université Paris 06, UMR_S 968, Institut de la Vision, 75012 Paris, France ; CNRS, UMR_7210, 75012 Paris, France.
Keiichiro AkeoDepartment of Ophthalmology, Nippon Medical School, Chiba Hokuso Hospital, Inzai, Chiba 270-1694, Japan.
Yuko SugawaraHonjo Daiichi Hospital, Yurihonjo, Akita 015-0834, Japan.
Kunihiko YamakiDepartment of Ophthalmology, Nippon Medical School, Chiba Hokuso Hospital, Inzai, Chiba 270-1694, Japan.
Christina ZeitzINSERM, U968, 75012 Paris, France ; Sorbonne Universités, UPMC Université Paris 06, UMR_S 968, Institut de la Vision, 75012 Paris, France ; CNRS, UMR_7210, 75012 Paris, France.ORCID 0000-0002-3510-1712
Isabelle AudoINSERM, U968, 75012 Paris, France ; Sorbonne Universités, UPMC Université Paris 06, UMR_S 968, Institut de la Vision, 75012 Paris, France ; CNRS, UMR_7210, 75012 Paris, France ; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, DHU ViewMaintain, INSERM-DHOS CIC 1423, 75012 Paris, France.ORCID 0000-0003-0698-5309
Hiroshi TakahashiDepartment of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8602, Japan.
Chiba Hokusou Hospital · JPCentre National de la Recherche Scientifique · FRNippon Medical School · JPYamagata Prefectural Shinjo Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to determine whether an autosomal recessive cone dystrophy was caused by a homozygous RP1L1 mutation. A family including one subject affected with cone dystrophy and four unaffected members without evidence of consanguinity underwent detailed ophthalmic evaluations. The ellipsoid and interdigitation zones on the spectral-domain optical coherence tomography images were disorganized in the proband. The proband had a reduced amplitude of cone and flicker full-field electroretinograms (ERGs). Focal macular ERGs and multifocal ERGs were severely reduced in the proband. A homozygous RP1L1 mutation (c.3628T>C, p.S1210P) was identified in the proband. Family members who were heterozygous for the p.S1210P mutation had normal visual acuity and normal results of clinical evaluations. To investigate other putative pathogenic variant(s), a next-generation sequencing (NGS) approach was applied to the proband. NGS identified missense changes in the heterozygous state of the PCDH15, RPGRIP1, and GPR98 genes. None of these variants cosegregated with the phenotype and were predicted to be benign reinforcing the putative pathogenicity of the RP1L1 homozygous mutation. The AO images showed a severe reduction of the cone density in the proband. Our findings indicate that a homozygous p.S1210P exchange in the RP1L1 gene can cause cone dystrophy.

Indexed as

Genes, RecessiveMutation, MissenseAmino Acid SubstitutionEye ProteinsFemaleHomozygoteHumansMaleMiddle AgedRetinal Cone Photoreceptor CellsRetinal DegenerationTomography, Optical CoherenceEye ProteinsRP1L1 protein, human

Identifiers

PMID25692141
PMCPMC4322316
OpenAlexW2047292817

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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.