Evidence map›Paper›PMID 22665969›Full record

ArticleMolecular vision2012

Identification of recurrent and novel mutations in TULP1 in Pakistani families with early-onset retinitis pigmentosa.

Muhammad Ajmal, Muhammad Imran Khan, Shazia Micheal, Waqas Ahmed, Ashfa Shah, Hanka Venselaar, Habib Bokhari, Aisha Azam, Nadia Khalida Waheed, Rob W J Collin and 3 more

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
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  8. Novel mutations inInternational journal of ophthalmology · 2021
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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

13 authors at 2 institutions in 2 countries.

Muhammad AjmalDepartment of Biosciences, Faculty of Science, COMSATS Institute of Information Technology, Islamabad, Pakistan.
Muhammad Imran Khan
Shazia Micheal
Waqas Ahmed
Ashfa Shah
Hanka Venselaar
Habib Bokhari
Aisha Azam
Nadia Khalida Waheed
Rob W J Collin
Anneke I den Hollander
Raheel Qamar
Frans P M Cremers
COMSATS University Islamabad · PKRadboud University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo identify the genetic defects underlying retinitis pigmentosa (RP) in Pakistani families.

methodsGenome-wide high-density single-nucleotide-polymorphism microarray analysis was performed using the DNA of nine affected individuals from two large families with multiple consanguineous marriages. Data were analyzed to identify homozygous regions that are shared by affected sibs in each family. Sanger sequencing was performed for genes previously implicated in autosomal recessive RP and allied retinal dystrophies that resided in the identified homozygous regions. Probands from both families underwent fundus examination and electroretinogram measurements.

resultsThe tubby-like protein 1 gene (TULP1) was present in the largest homozygous region in both families. Sequence analysis identified a previously reported mutation (c.1138A>G; p.Thr380Ala) in one family and a novel pathogenic variant (c.1445G>A; p.Arg482Gln) in the other family. Both variants were found to be present in a homozygous state in all affected individuals, were heterozygous present in the unaffected parents, and heterozygous present or absent in normal individuals. Affected individuals of both families showed an early-onset form of RP.

conclusionsHomozygosity mapping, combined with candidate-gene analysis, successfully identified genetic defects in TULP1 in two large Pakistani families with early-onset retinitis pigmentosa.

Indexed as

MutationAdultAge of OnsetBase SequenceChild, PreschoolConsanguinityElectroretinographyEye ProteinsFemaleGenes, RecessiveGenetic LinkageGenotypeHomozygoteHumansMaleMicrosatellite RepeatsEye ProteinsTULP1 protein, human

Identifiers

PMID22665969
PMCPMC3365133
OpenAlexW2155071645

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.