Evidence map›Paper›PMID 20378821›Full record

ArticleJournal of the American Society of Nephrology : JASN2010

Genotype-phenotype correlation in X-linked Alport syndrome.

Mir Reza Bekheirnia, Berenice Reed, Martin C Gregory, Kim McFann, Alireza Abdollah Shamshirsaz, Amirali Masoumi, Robert W Schrier

Abstract read
In one paragraph

Article in Journal of the American Society of Nephrology : JASN, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 162 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
162citing papers in PubMed, 2 pooled it
5.4field-weighted citation impact, top 3% 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

162 citing papers in PubMed, 2 syntheses or guidelines pooled it, 276 citations in OpenAlex.

  1. Diagnosis, management and treatment of the Alport syndrome - 2024 guideline on behalf of ERKNet, ERA and ESPN.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Guideline
  2. Guideline
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Hearing loss and truncating variants in Alport syndrome.Kidney research and clinical practice · 2026
    Article
  8. A NovelGenes · 2026
    Article
  9. Review
  10. Article
  11. Article
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102 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 1 country.

Mir Reza BekheirniaDepartment of Medicine, University of Colorado Denver, Aurora, Colorado 80045, USA.
Berenice Reed
Martin C Gregory
Kim McFann
Alireza Abdollah Shamshirsaz
Amirali Masoumi
Robert W Schrier
University of Colorado Denver · USUniversity of Utah · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations in the COL4A5 gene cause X-linked Alport syndrome (XLAS). Understanding the correlation between clinical manifestations and the underlying mutations adds prognostic value to genetic testing, which is increasingly available. Our aim was to determine the association between genotype and phenotype in 681 affected male participants with XLAS from 175 US families. Hearing loss and ocular changes were present in 67 and 30% of participants, respectively. Average age of participants at onset of ESRD was 37 years for those with missense mutations, 28 years for those with splice-site mutations, and 25 years for those with truncating mutations (P < 0.0001). We demonstrated a strong relationship between mutation position and age at onset of ESRD, with younger age at onset of ESRD associated with mutations at the 5' end of the gene (hazard ratio 0.766 [95% confidence interval 0.694 to 0.846] per 1000 bp toward the 3' end; P < 0.0001). Affected participants with splice mutations or truncating mutations each had two-fold greater odds of developing eye problems than those with missense mutations; development of hearing impairment showed a similar trend. Hearing loss and ocular changes associated with mutations located closer to the 5; end of the gene. These strong genotype-phenotype correlations could potentially help in the evaluation and counseling of US families with XLAS.

Indexed as

GenotypeMutationPhenotypeAdultAge of OnsetCollagen Type IVEye Diseases, HereditaryGlycineHearing LossHumansMaleNephritis, HereditaryUnited StatesCOL4A5 protein, humanCollagen Type IVGlycine

Identifiers

PMID20378821
PMCPMC2865738
OpenAlexW2125903388

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.