Evidence map›Paper›PMID 24339724›Full record

ArticleMolecular vision2013

Homozygosity mapping in autosomal recessive retinitis pigmentosa families detects novel mutations.

Béatrice Bocquet, Nour Al Dain Marzouka, Maxime Hebrard, Gaël Manes, Audrey Sénéchal, Isabelle Meunier, Christian P Hamel

Abstract read
In one paragraph

Article in Molecular vision, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
–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

33 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Mutational Profile and Retinal Phenotypes ofJournal of ophthalmology · 2024
    Article
  5. Clinical and Molecular Aspects of C2orf71/PCARE in Retinal Diseases.International journal of molecular sciences · 2023
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. The Natural History ofInternational journal of molecular sciences · 2022
    Article
  11. Clinical and genetic investigations in Chinese families with retinitis pigmentosa.Experimental biology and medicine (Maywood, N.J.) · 2022
    Article
  12. Retinitis Punctata Albescens andOphthalmology science · 2021
    Article
  13. Article
  14. Article
  15. Severe retinitis pigmentosa phenotype associated with novel CNGB1 variants.American journal of ophthalmology case reports · 2020
    Article
  16. Article
  17. Clinical findings of end-stage retinitis pigmentosa with a homozygousAmerican journal of ophthalmology case reports · 2019
    Article
  18. Novel clinical findings in autosomal recessive NR2E3-related retinal dystrophy.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Article
  19. Article
  20. 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

7 authors.

Béatrice BocquetINSERM U. 1051, Institute for Neurosciences of Montpellier, Montpellier, France ; Université Montpellier 1, Montpellier, France ; Université Montpellier 2, Montpellier, France.
Nour Al Dain Marzouka
Maxime Hebrard
Gaël Manes
Audrey Sénéchal
Isabelle Meunier
Christian P Hamel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAutosomal recessive retinitis pigmentosa (arRP) is a genetically heterogeneous disease resulting in progressive loss of photoreceptors that leads to blindness. To date, 36 genes are known to cause arRP, rendering the molecular diagnosis a challenge. The aim of this study was to use homozygosity mapping to identify the causative mutation in a series of inbred families with arRP.

methodsarRP patients underwent standard ophthalmic examination, Goldman perimetry, fundus examination, retinal OCT, autofluorescence measurement, and full-field electroretinogram. Fifteen consanguineous families with arRP excluded for USH2A and EYS were genotyped on 250 K SNP arrays. Homozygous regions were listed, and known genes within these regions were PCR sequenced. Familial segregation and mutation analyzes were performed.

resultsWe found ten mutations, seven of which were novel mutations in eight known genes, including RP1, IMPG2, NR2E3, PDE6A, PDE6B, RLBP1, CNGB1, and C2ORF71, in ten out of 15 families. The patients carrying RP1, C2ORF71, and IMPG2 mutations presented with severe RP, while those with PDE6A, PDE6B, and CNGB1 mutations were less severely affected. The five families without mutations in known genes could be a source of identification of novel genes.

conclusionsHomozygosity mapping combined with systematic screening of known genes results in a positive molecular diagnosis in 66.7% of families.

Indexed as

Genes, RecessiveHomozygoteMutationPolymorphism, GeneticAdolescentAdultConsanguinityExonsEye ProteinsFemaleGenotyping TechniquesHumansIntronsMaleMiddle AgedPedigreeEye Proteins

Identifiers

PMID24339724
PMCPMC3857159

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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.