Evidence map›Paper›PMID 21087494›Full record

ArticleArthritis research & therapy2010

Anticitrullinated protein antibody (ACPA) in rheumatoid arthritis: influence of an interaction between HLA-DRB1 shared epitope and a deletion polymorphism in glutathione S-transferase in a cross-sectional study.

Ted R Mikuls, Karen A Gould, Kimberly K Bynoté, Fang Yu, Tricia D Levan, Geoffrey M Thiele, Kaleb D Michaud, James R O'Dell, Andreas M Reimold, Roderick Hooker and 10 more

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 10% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

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  19. Insights and Implications of the VA Rheumatoid Arthritis Registry.Federal practitioner : for the health care professionals of the VA, DoD, and PHS · 2015
    Review
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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

20 authors at 11 institutions in 1 country.

Ted R MikulsOmaha Veterans Affairs Medical Center and Nebraska Arthritis Outcomes Research Center, University of Nebraska Medical Center, 986270 Nebraska Medical Center, Omaha, NE 68198-6270, USA. tmikuls@unmc.edu
Karen A Gould
Kimberly K Bynoté
Fang Yu
Tricia D Levan
Geoffrey M Thiele
Kaleb D Michaud
James R O'Dell
Andreas M Reimold
Roderick Hooker
Liron Caplan
Dannette S Johnson
Gail Kerr
J Steuart Richards
Grant W Cannon
Lindsey A Criswell
Janelle A Noble
S Louis Bridges
Laura Hughes
Peter K Gregersen
Nebraska Medical Center · USUniversity of Nebraska Medical Center · USUniversity of Alabama at Birmingham · USVeterans Health Administration · USFeinstein Institute for Medical Research · USGeorgetown University · USGeorgetown University Medical Center · USUniversity of California, San Francisco · USUniversity of Colorado Denver · USUniversity of Mississippi Medical Center · USUniversity of Utah · US

Funding

NARAC The Genetics of Rheumatoid ArthritisR01AR044422 · NIAMS · NORTH SHORE UNIVERSITY HOSPITAL · PI GREGERSEN, PETER K. · 1997 to 2011
$6.0M
Gene-Environment Interactions in RA Autoimmunity and Disease SeverityR03AR054539 · NIAMS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI MIKULS, TED RICHARD · 2007 to 2009
$218k
NIAMS NIH HHS R01 AR044422NIAMS NIH HHS R03 AR054539
6 · The paper itself

Abstract

introductionA deletion polymorphism in glutathione S-transferase Mu-1 (GSTM1-null) has previously been implicated to play a role in rheumatoid arthritis (RA) risk and progression, although no prior investigations have examined its associations with anticitrullinated protein antibody (ACPA) positivity. The purpose of this study was to examine the associations of GSTM1-null with ACPA positivity in RA and to assess for evidence of interaction between GSTM1 and HLA-DRB1 shared epitope (SE).

methodsAssociations of GSTM1-null with ACPA positivity were examined separately in two RA cohorts, the Veterans Affairs Rheumatoid Arthritis (VARA) registry (n = 703) and the Study of New-Onset RA (SONORA; n = 610). Interactions were examined by calculating an attributable proportion (AP) due to interaction.

resultsA majority of patients in the VARA registry (76%) and SONORA (69%) were positive for ACPA with a similar frequency of GSTM1-null (53% and 52%, respectively) and HLA-DRB1 SE positivity (76% and 71%, respectively). The parameter of patients who had ever smoked was more common in the VARA registry (80%) than in SONORA (65%). GSTM1-null was significantly associated with ACPA positivity in the VARA registry (odds ratio (OR), 1.45; 95% confidence interval (CI), 1.02 to 2.05), but not in SONORA (OR, 1.00; 95% CI, 0.71 to 1.42). There were significant additive interactions between GSTM1 and HLA-DRB1 SE in the VARA registry (AP, 0.49; 95% CI, 0.21 to 0.77; P < 0.001) in ACPA positivity, an interaction replicated in SONORA (AP, 0.38; 95% CI, 0.00 to 0.76; P = 0.050).

conclusionsThis study is the first to show that the GSTM1-null genotype, a common genetic variant, exerts significant additive interaction with HLA-DRB1 SE on the risk of ACPA positivity in RA. Since GSTM1 has known antioxidant functions, these data suggest that oxidative stress may be important in the development of RA-specific autoimmunity in genetically susceptible individuals.

Indexed as

Genetic Predisposition to DiseaseArthritis, RheumatoidAutoantibodiesAutoantigensCross-Sectional StudiesEnzyme-Linked Immunosorbent AssayEpitopesFemaleGenotypeGlutathione TransferaseHLA-DR AntigensHLA-DRB1 ChainsHumansMaleMiddle AgedPolymerase Chain ReactionAutoantibodiesAutoantigensEpitopesGlutathione TransferaseHLA-DR AntigensHLA-DRB1 Chains

Identifiers

PMID21087494
PMCPMC3046521
OpenAlexW2168252041

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.