Evidence map›Paper›PMID 26870819›Full record

ArticleEBioMedicine2016

Reduced Human Leukocyte Antigen (HLA) Protection in Gulf War Illness (GWI).

Apostolos P Georgopoulos, Lisa M James, Margaret Y Mahan, Jasmine Joseph, Angeliki Georgopoulos, Brian E Engdahl

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

43 citing papers in PubMed, 55 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Apostolos P GeorgopoulosBrain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Department of Neurology, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Center for Cognitive Sciences, University of Minnesota, Minneapolis, MN 55455, USA; Graduate Program in Biomedical Informatics and Computational Biology, University of Minnesota, Minneapolis, MN 55455, USA. Electronic address: omega@umn.edu.
Lisa M JamesBrain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Department of Psychiatry, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Center for Cognitive Sciences, University of Minnesota, Minneapolis, MN 55455, USA.
Margaret Y MahanBrain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Graduate Program in Biomedical Informatics and Computational Biology, University of Minnesota, Minneapolis, MN 55455, USA.
Jasmine JosephBrain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Graduate Program in Biomedical Informatics and Computational Biology, University of Minnesota, Minneapolis, MN 55455, USA.
Angeliki GeorgopoulosMetabolic Service, Department of Medicine, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
Brian E EngdahlBrain Sciences Center, Department of Veterans Affairs Health Care System, Minneapolis, MN 55417, USA; Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA; Center for Cognitive Sciences, University of Minnesota, Minneapolis, MN 55455, USA; Department of Psychology, University of Minnesota, Minneapolis, MN 55455, USA.
Minneapolis VA Health Care System · USUniversity of Minnesota · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGulf War Illness (GWI) is a disease of unknown etiology with symptoms suggesting the involvement of an immune process. Here we tested the hypothesis that Human Leukocyte Antigen (HLA) composition might differ between veterans with and without GWI.

methodsWe identified 144 unique alleles of Class I and II HLA genes in 82 veterans (66 with and 16 without GWI). We tested the hypothesis that a subset of HLA alleles may classify veterans in their respective group using a stepwise linear discriminant analysis. In addition, each participant rated symptom severity in 6 domains according to established GWI criteria, and an overall symptom severity was calculated.

findingsWe found 6 Class II alleles that classified participants 84.1% correctly (13/16 control and 56/66 GWI). The number of copies of the 6 alleles was significantly higher in the control group, suggesting a protective role. This was supported by a significant negative dependence of overall symptom severity on the number of allele copies, such that symptom severity was lower in participants with larger numbers of allele copies.

interpretationThese results indicate a reduced HLA protection (i.e. genetic susceptibility) in veterans with GWI.

fundingUniversity of Minnesota and U.S. Department of Veterans Affairs.

Indexed as

AdultAgedAllelesFemaleGene FrequencyGenotypeGenotyping TechniquesGulf WarHLA AntigensHumansMaleMiddle AgedOdds RatioPersian Gulf SyndromeROC CurveVeteransHLA AntigensGenetic riskGulf War Illness (GWI)Human Leukocyte Antigen (HLA)Veterans

Identifiers

PMID26870819
PMCPMC4739436
OpenAlexW2180182197

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.