Evidence map›Paper›PMID 27316669›Full record

ArticleBMC ophthalmology2016

Mutation spectrum of the FZD-4, TSPAN12 AND ZNF408 genes in Indian FEVR patients.

Ganeswara Rao Musada, Hameed Syed, Subhadra Jalali, Subhabrata Chakrabarti, Inderjeet Kaur

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Avascular Peripheral Retina in Infants.Turkish journal of ophthalmology · 2023
    Review
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  8. Article
  9. Pathogenic variants and associated phenotypic spectrum of TSPAN12 based on data from a large cohort.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2021
    Article
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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

5 authors at 1 institution in 1 country.

Ganeswara Rao MusadaKallam Anji Reddy Molecular Genetics Laboratory, Brien Holden Eye Research Centre, L V Prasad Eye Institute (KAR Campus), Road#2, Banjara Hills, Hyderabad, 500034, India.
Hameed SyedKallam Anji Reddy Molecular Genetics Laboratory, Brien Holden Eye Research Centre, L V Prasad Eye Institute (KAR Campus), Road#2, Banjara Hills, Hyderabad, 500034, India.
Subhadra JalaliSmt. Kanuri Santhamma Centre for Vitreo Retinal Diseases, LV Prasad Eye Institute, Hyderabad, India.
Subhabrata ChakrabartiKallam Anji Reddy Molecular Genetics Laboratory, Brien Holden Eye Research Centre, L V Prasad Eye Institute (KAR Campus), Road#2, Banjara Hills, Hyderabad, 500034, India.
Inderjeet KaurKallam Anji Reddy Molecular Genetics Laboratory, Brien Holden Eye Research Centre, L V Prasad Eye Institute (KAR Campus), Road#2, Banjara Hills, Hyderabad, 500034, India. inderjeet@lvpei.org.
L V Prasad Eye Institute · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMutations in candidate genes that encode for a ligand (NDP) and receptor complex (FZD4, LRP5 and TSPAN12) in the Norrin β-catenin signaling pathway are involved in the pathogenesis of familial exudative vitreoretinopathy (FEVR, MIM # 133780). Recently, a transcription factor (ZNF408) has also been implicated in FEVR. We had earlier characterized the variations in NDP among FEVR patients from India. The present study aimed at understanding the involvement of the remaining genes (FZD4, TSPAN12 and ZNF408) in the same cohort.

methodsThe DNA of 110 unrelated FEVR patients and 115 unaffected controls were screened for variations in the entire coding and untranslated regions of these 3 genes by resequencing. Segregation of the disease-associated variants was assessed in the family members of the probands. The effect of the observed missense changes were further analyzed by SIFT and PolyPhen-2 scores.

resultsThe screening of FZD4, TSPAN12 and ZNF408 genes identified 11 different mutations in 15/110 FEVR probands. Of the 11 identified mutations, 6 mutations were novel. The detected missense mutations were mainly located in the domains which are functionally crucial for the formation of ligand-receptor complex and as they replaced evolutionarily highly conserved amino acids with a SIFT score < 0.005, they are predicted to be pathogenic. Additionally 2 novel and 16 reported single nucleotide polymorphisms (SNP) were also detected.

conclusionsOur genetic screening revealed varying mutation frequencies in the FZD4 (8.0 %), TSPAN12 (5.4 %) and ZNF408 (2.7 %) genes among the FEVR patients, indicating their potential role in the disease pathogenesis. The observed mutations segregated with the disease phenotype and exhibited variable expressivity. The mutations in FZD4 and TSPAN12 were involved in autosomal dominant and autosomal recessive families and further validates the involvement of these gene in FEVR development.

Indexed as

MutationAgedAsian PeopleCase-Control StudiesDNA-Binding ProteinsDNA Mutational AnalysisFemaleFrizzled ReceptorsGene FrequencyHumansMaleMiddle AgedPolymerase Chain ReactionRetinal DiseasesTetraspaninsTranscription FactorsDNA-Binding ProteinsFrizzled ReceptorsFZD4 protein, humanTetraspaninsTranscription FactorsTSPAN12 protein, humanZNF408 protein, humanAbnormal angiogenesisCandidate genesMutation screeningRetina

Identifiers

PMID27316669
PMCPMC4912735
OpenAlexW2430757568

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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.