Evidence map›Paper›PMID 25124159›Full record

ArticleBMC medical genetics2014

A novel COL4A1 gene mutation results in autosomal dominant non-syndromic congenital cataract in a Chinese family.

Xin-Yi Xia, Na Li, Xiang Cao, Qiu-Yue Wu, Tian-Fu Li, Cui Zhang, Wei-Wei Li, Ying-Xia Cui, Xiao-Jun Li, Chun-Yan Xue

Abstract read
In one paragraph

Article in BMC medical genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

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

  1. Pooled it
  2. Article
  3. Article
  4. Through theGenes · 2024
    Review
  5. Review
  6. Clinical utility of genetic testing in 201 preschool children with inherited eye disorders.Genetics in medicine : official journal of the American College of Medical Genetics · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Genotype-phenotype correlations in pathology caused by collagen type IV alpha 1 and 2 mutations.Matrix biology : journal of the International Society for Matrix Biology · 2017
    Review
  12. A NovelJournal of ophthalmology · 2016
    Article
  13. Article
  14. Article
  15. 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.

Xin-Yi Xia
Na Li
Xiang Cao
Qiu-Yue Wu
Tian-Fu Li
Cui Zhang
Wei-Wei Li
Ying-Xia Cui
Xiao-Jun LiInstitute of Laboratory Medicine, Jinling Hospital, Nanjing University School of Medicine, 305 East Zhongshan Road, Nanjing 210002, People's Republic of China. lixiaojun1962@gmail.com.
Chun-Yan Xue

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlmost one-third of congenital cataracts are primarily autosomal dominant disorders, which are also called autosomal dominant congenital cataract, resulting in blindness and clouding of the lens. The purpose of this study was to identify the disease-causing mutation in a Chinese family affected by bilateral, autosomal dominant congenital cataract.

methodsThe detection of candidate gene mutation and the linkage analysis of microsatellite markers were performed for the known candidate genes. Molecular mapping and cloning of candidate genes were used in all affected family members to screen for potential genetic mutations and the mutation was confirmed by single enzyme digestion.

resultsThe proband was diagnosed with isolated, congenital cataract without the typical clinical manifestations of cataract, which include diabetes, porencephaly, sporadic intracerebral hemorrhage, and glomerulopathy. A novel mutation, c.2345 G > C (Gly782Ala), in exon 31 of the collagen type IV αlpha1 (COL4A1) gene, which encodes the collagen alpha-1(IV) chain, was found to be associated with autosomal dominant congenital cataract in a Chinese family. This mutation was not found in unaffected family members or in 200 unrelated controls. Sequence analysis confirmed that the Gly782 amino acid residue is highly conserved.

conclusionsThe novel mutation (c.2345 G > C) of the COL4A1 gene is the first report of a non-syndromic, autosomal dominant congenital cataract, thereby highlighting the important role of type IV collagen in the physiological and optical properties of the lens.

Indexed as

Asian PeopleCataractChromosomes, Human, Pair 13Collagen Type IVEvolution, MolecularExonsFemaleGenetic VariationHumansLinkage DisequilibriumMaleMicrosatellite RepeatsPedigreeSequence AnalysisCOL4A1 protein, humanCollagen Type IV

Identifiers

PMID25124159
PMCPMC4236509

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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.