Evidence map›Paper›PMID 21850184›Full record

ArticleMolecular vision2011

Copy number variation in the complement factor H-related genes and age-related macular degeneration.

Katharina E Kubista, Nirubol Tosakulwong, Yanhong Wu, Euijung Ryu, Jaime L Roeder, Laura A Hecker, Keith H Baratz, William L Brown, Albert O Edwards

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.7field-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

27 citing papers in PubMed, 33 citations in OpenAlex.

  1. Complement-Regulatory Proteins CFHR1 and CFHR3 and Patient Response to Anti-CD20 Monoclonal Antibody Therapy.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Trial
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Screening for Copy Number Variations of the 15q13.3 Hotspot inCurrent issues in molecular biology · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Deletion Variants ofJournal of the American Society of Nephrology : JASN · 2018
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Current Understanding of the Role of Complement in IgA Nephropathy.Journal of the American Society of Nephrology : JASN · 2015
    Review
  20. Review
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

9 authors at 1 institution in 1 country.

Katharina E KubistaDepartment of Ophthalmology, Ludwig Boltzmann Institute for Retinology and Biomicroscopic Lasersurgery, Rudolf Foundation Clinic, Vienna, Austria. kubista@proeyes.at
Nirubol Tosakulwong
Yanhong Wu
Euijung Ryu
Jaime L Roeder
Laura A Hecker
Keith H Baratz
William L Brown
Albert O Edwards
Ludwig Boltzmann Institute for Retinology and Biomicroscopic Laser Surgery · AT

Funding

Genetics of macular degenerationR01EY014467 · NEI · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI EDWARDS, ALBERT O · 2003 to 2007
$2.5M
NEI NIH HHS EY014467NEI NIH HHS R01 EY014467
6 · The paper itself

Abstract

purposeTo determine the contribution of copy number variation (CNV) in the regulation of complement activation (RCA) locus to the development of age-related macular degeneration (AMD).

methodsA multiplex ligation-dependent probe amplification assay was developed to quantify the number of copies of CFH, CFHR3, CFHR1, CFHR4, CFHR2, and CFHR5 in humans. Subjects with (451) and without (362) AMD were genotyped using the assay, and the impact on AMD risk was evaluated.

resultsEight unique combinations of copy number variation were observed in the 813 subjects. Combined deletion of CFHR3 and CFHR1 was protective (OR=0.47, 95% confidence interval 0.36-0.62) against AMD and was observed in 88 (82 [18.6%] with one deletion, 6 [1.4%] with two deletions) subjects with AMD and 127 (108 [30.7%] with one deletion, 19 [5.4%] with two deletions) subjects without AMD. Other deletions were much less common: CFH intron 1 (n=2), CFH exon 18 (n=2), combined CFH exon 18 and CFHR3 (n=1), CFHR3 (n=2), CFHR1 (n=1), combined CFHR1 and CFHR4 (n=15), and CFHR2 deletion (n=7, 0.9%). The combined CFHR3 and CFHR1 deletion was observed on a common protective haplotype, while the others appeared to have arisen on multiple different haplotypes.

conclusionsWe found copy number variations of CFHR3, CFHR1, CFHR4, and CFHR2. Combined deletion of CFHR3 and CFHR1 was associated with a decreased risk of developing AMD. Other deletions were not sufficiently common to have a statistically detectable impact on the risk of AMD, and duplications were not observed.

Indexed as

DNA Copy Number VariationsGene DosageAgedAged, 80 and overApolipoproteinsBase SequenceBlood ProteinsCase-Control StudiesComplement C3b Inactivator ProteinsComplement Factor HDNA FingerprintingDNA ProbesEyeFemaleGenetic Predisposition to DiseaseGenotypeApolipoproteinsBlood ProteinsCFH protein, humanCFHR1 protein, humanCFHR3 protein, humanCFHR4 protein, humanComplement C3b Inactivator ProteinsComplement Factor HDNA Probes

Identifiers

PMID21850184
PMCPMC3156785
OpenAlexW1606380774

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.