Evidence map›Paper›PMID 7488604›Full record

ArticleThe British journal of ophthalmology1995

Bimodal expressivity in dominant retinitis pigmentosa genetically linked to chromosome 19q.

K Evans, M al-Maghtheh, F W Fitzke, A T Moore, M Jay, C F Inglehearn, G B Arden, A C Bird

Open access · bronzeAbstract read
In one paragraph

Article in The British journal of ophthalmology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

18 citing papers in PubMed, 45 citations in OpenAlex.

  1. Observational
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  12. Mutations in PRPF31 inhibit pre-mRNA splicing of rhodopsin gene and cause apoptosis of retinal cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2005
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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

8 authors at 1 institution in 1 country.

K EvansDepartment of Clinical Ophthalmology and Electrodiagnostics, Moorfields Eye Hospital, London.
M al-Maghtheh
F W Fitzke
A T Moore
M Jay
C F Inglehearn
G B Arden
A C Bird
Moorfields Eye Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A clinical, psychophysical, and electrophysiologic study was undertaken of two autosomal dominant retinitis pigmentosa pedigrees with a genetic mutation assigned to chromosome 19q by linkage analysis. Members with the abnormal haplotype were either symptomatic with adolescent onset nyctalopia, restricted visual fields, and non-detectable electroretinographic responses by 30 years of age, or asymptomatic with normal fundus appearance and minimal or no psychophysical or electroretinographic abnormalities. There was no correlation in the severity in parents and their offspring. Pedigree analysis suggested that although the offspring of parents with the genetic mutation were at 50% risk of having the genetic defect, the risk of being symptomatic during a working lifetime was only 31%. Such bimodal phenotypic expressivity in these particular pedigrees may be explained by a second, allelic genetic influence and may be a phenomenon unique to this genetic locus. Genetic counselling in families expressing this phenotype can only be based on haplotype analysis since clinical investigations, even in the most elderly, would not preclude the presence of the mutant gene.

Indexed as

PedigreeAdultAgedChromosomes, Human, Pair 19Dark AdaptationElectrophysiologyElectroretinographyFemaleGenetic LinkageHaplotypesHeterozygoteHumansMaleMiddle AgedRetinitis PigmentosaSensory Thresholds

Identifiers

PMID7488604
PMCPMC505271
OpenAlexW2081954352

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.