Evidence map›Paper›PMID 27377778›Full record

ArticleScientific reports2016

COL4A6 is dispensable for autosomal recessive Alport syndrome.

Tomohiro Murata, Kan Katayama, Toshitaka Oohashi, Timo Jahnukainen, Tomoko Yonezawa, Yoshikazu Sado, Eiji Ishikawa, Shinsuke Nomura, Karl Tryggvason, Masaaki Ito

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. The Protective Role of KANK1 in Podocyte Injury.International journal of molecular sciences · 2024
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  3. International journal of molecular sciences · 2022
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  9. Article
  10. Article
  11. Review
  12. Article
  13. Long-term follow-up of an Alport syndrome patient with a novel mutation ofInternational journal of clinical and experimental pathology · 2017
    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 at 5 institutions in 3 countries.

Tomohiro MurataDepartment of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan.
Kan KatayamaDepartment of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan.
Toshitaka OohashiDepartment of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Timo JahnukainenDepartment of Pediatric Nephrology and Transplantation, Children's Hospital, Helsinki University Hospital, Helsinki, Finland.
Tomoko YonezawaDepartment of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Yoshikazu SadoDivision of Immunology, Shigei Medical Research Institute, Okayama, Japan.
Eiji IshikawaDepartment of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan.
Shinsuke NomuraDepartment of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan.
Karl TryggvasonDivision of Matrix Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden.
Masaaki ItoDepartment of Cardiology and Nephrology, Mie University Graduate School of Medicine, Tsu, Japan.
Mie University · JPKarolinska Institutet · SEOkayama University · JPHelsinki University Hospital · FIShigei Medical Research Institute · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alport syndrome is caused by mutations in the genes encoding α3, α4, or α5 (IV) chains. Unlike X-linked Alport mice, α5 and α6 (IV) chains are detected in the glomerular basement membrane of autosomal recessive Alport mice, however, the significance of this finding remains to be investigated. We therefore generated mice lacking both α3 and α6 (IV) chains and compared their renal function and survival with Col4a3 knockout mice of 129 × 1/Sv background. No significant difference was observed in the renal function or survival of the two groups, or when the mice were backcrossed once to C57BL/6 background. However, the survival of backcrossed double knockout mice was significantly longer than that of the mice of 129 × 1/Sv background, which suggests that other modifier genes were involved in this phenomenon. In further studies we identified two Alport patients who had a homozygous mutation in intron 46 of COL4A4. The α5 and α6 (IV) chains were focally detected in the glomerular basement membrane of these patients. These findings indicate that although α5 and α6 (IV) chains are induced in the glomerular basement membrane in autosomal recessive Alport syndrome, their induction does not seem to play a major compensatory role.

Indexed as

Genes, RecessiveAdolescentAnimalsCollagen Type IVCrosses, GeneticFemaleGlomerular Basement MembraneHomozygoteHumansIntronsKidneyMaleMiceMice, Inbred C57BLMice, KnockoutMutationCOL4A1 protein, humanCol4a1 protein, mouseCOL4A2 protein, humanCol4a2 protein, mouseCOL4A6 protein, humanCollagen Type IVPeptide Fragments

Identifiers

PMID27377778
PMCPMC4932521
OpenAlexW2474470222

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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.