Evidence map›Paper›PMID 37794452›Full record

ArticleEnvironmental health : a global access science source2023

Cognitive decrements in 1991 Gulf War veterans: associations with Gulf War illness and neurotoxicant exposures in the Boston Biorepository, Recruitment, and Integrative Network (BBRAIN) cohorts.

D Keating, M Krengel, J Dugas, R Toomey, L Chao, L Steele, Lloyd P Janulewicz, T Heeren, E Quinn, N Klimas and 1 more

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 10 citations in OpenAlex.

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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

11 authors at 4 institutions in 1 country.

D KeatingDepartment of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA.
M KrengelDepartment of Neurology, Boston University School of Medicine, 72 East Concord St, Boston, MA, 02118, USA.
J DugasDepartment of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA.
R ToomeyDepartment of Psychological and Brain Sciences, College of Arts and Sciences, Boston University, 900 Commonwealth Ave, Boston, MA, USA.
L ChaoSan Francisco Veterans Affairs Health Care System, University of California, San Francisco, CA, 94143, USA.
L SteeleBaylor College of Medicine Neuropsychiatry Division, Department of Psychiatry and Behavioral Sciences, Houston, TX, 77030, USA.
Lloyd P JanulewiczDepartment of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA.
T HeerenDepartment of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA.
E QuinnDepartment of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, 02118, USA.
N KlimasDr. Kiran C. Patel College of Osteopathic Medicine, Institute for Neuroimmune Medicine, Nova Southeastern University, Fort Lauderdale, FL, 33314, USA.
K SullivanDepartment of Environmental Health, Boston University School of Public Health, 715 Albany Street, T4W, Boston, MA, 02118, USA. TTY@BU.EDU.
Boston University · USBaylor College of Medicine · USNova Southeastern University · USUniversity of California, San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDuring deployment, veterans of the 1991 Gulf War (GW) were exposed to multiple war-related toxicants. Roughly a third of these veterans continue to exhibit neurotoxicant induced symptoms of Gulf War Illness (GWI), a multi-faceted condition that includes fatigue, pain and cognitive decrements. When studied empirically, both deployed veterans with exposures and those who meet the criteria for GWI are more likely to show deficits in the area of neuropsychological functioning. Although studies have shown cognitive impairments in small sample sizes, it is necessary to revisit these findings with larger samples and newer cohorts to see if other areas of deficit emerge with more power to detect such differences. A group of researchers and clinicians with expertise in the area of GWI have identified common data elements (CDE) for use in research samples to compare data sets. At the same time, a subgroup of researchers created a new repository to share these cognitive data and biospecimens within the GWI research community.

methodsThe present study aimed to compare cognitive measures of attention, executive functioning, and verbal memory in a large sample of GWI cases and healthy GW veteran controls using neuropsychological tests recommended in the CDEs. We additionally subdivided samples based on the specific neurotoxicant exposures related to cognitive deficits and compared exposed versus non-exposed veterans regardless of case criteria status. The total sample utilized cognitive testing outcomes from the newly collated Boston, Biorepository, Recruitment, and Integrative Network (BBRAIN) for GWI.

resultsParticipants included 411 GW veterans, 312 GWI (cases) and 99 healthy veterans (controls). Veterans with GWI showed significantly poorer attention, executive functioning, learning, and short-and-long term verbal memory than those without GWI. Further, GW veterans with exposures to acetylcholinesterase inhibiting pesticides and nerve gas agents, had worse performance on executive function tasks. Veterans with exposure to oil well fires had worse performance on verbal memory and those with pyridostigmine bromide anti-nerve gas pill exposures had better verbal memory and worse performance on an attention task compared to unexposed veterans.

conclusionsThis study replicates prior results regarding the utility of the currently recommended CDEs in determining impairments in cognitive functioning in veterans with GWI in a new widely-available repository cohort and provides further evidence of cognitive decrements in GW veterans related to war-related neurotoxicant exposures.

Indexed as

Persian Gulf SyndromeVeteransAcetylcholinesteraseBostonCognitionGulf WarHumansAcetylcholinesteraseGulf war, common data elements, repository, cognitiveGulf war illnessNeurotoxicantVeterans

Identifiers

PMID37794452
PMCPMC10548744
OpenAlexW4387336781

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.