Evidence map›Paper›PMID 30080799›Full record

ArticleThe Journal of head trauma rehabilitation

Multimodal Imaging of Retired Professional Contact Sport Athletes Does Not Provide Evidence of Structural and Functional Brain Damage.

Robert Zivadinov, Paul Polak, Ferdinand Schweser, Niels Bergsland, Jesper Hagemeier, Michael G Dwyer, Deepa P Ramasamy, John G Baker, John J Leddy, Barry S Willer

Abstract read
In one paragraph

Article in The Journal of head trauma rehabilitation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 5 pooled it
3.4field-weighted citation impact, top 7% 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

24 citing papers in PubMed, 5 syntheses or guidelines pooled it, 38 citations in OpenAlex.

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  16. White matter hyperintensities in former American football players.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
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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

10 authors at 1 institution in 1 country.

Robert ZivadinovBuffalo Neuroimaging Analysis Center, Department of Neurology (Drs Zivadinov, Polak, Schweser, Bergsland, Hagemeier, Dwyer, and Ramasamy), MR Imaging Clinical and Translational Research Center (Drs Zivadinov and Schweser), Department of Orthopaedics (Drs Baker and Leddy), Department of Nuclear Medicine (Dr Baker), and Department of Psychiatry (Dr Willer), Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo.
Paul Polak
Ferdinand Schweser
Niels Bergsland
Jesper Hagemeier
Michael G Dwyer
Deepa P Ramasamy
John G Baker
John J Leddy
Barry S Willer
National Institutes of Health · US

Funding

University of Buffalo Clinical and Translational Science Institute - Supplement SchulyerUL1TR001412 · NCATS · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI MURPHY, TIMOTHY F · 2015 to 2024
$33.8M
NCATS NIH HHS UL1 TR001412
6 · The paper itself

Abstract

backgroundLong-term consequences of playing professional football and hockey on brain function and structural neuronal integrity are unknown.

objectivesTo investigate multimodal metabolic and structural brain magnetic resonance imaging (MRI) differences in retired professional contact sport athletes compared with noncontact sport athletes.

methodsTwenty-one male contact sport athletes and 21 age-matched noncontact sport athletes were scanned on a 3 tesla (3T) MRI using a multimodal imaging approach. The MRI outcomes included presence, number, and volume of focal white matter signal abnormalities, volumes of global and regional tissue-specific brain structures, diffusion-tensor imaging tract-based spatial statistics measures of mean diffusivity and fractional anisotropy, quantitative susceptibility mapping of deep gray matter, presence, number, and volume of cerebral microbleeds, MR spectroscopy N-acetyl-aspartate, glutamate, and glutamine concentrations relative to creatine and phosphor creatine of the corpus callosum, and perfusion-weighted imaging mean transit time, cerebral blood flow, and cerebral blood volume outcomes. Subjects were also classified as having mild cognitive impairment.

resultsNo significant differences were found for structural or functional MRI measures between contact sport athletes and noncontact sport athletes.

conclusionsThis multimodal imaging study did not show any microstructural, metabolic brain tissue injury differences in retired contact versus non-contact sport athletes.

Indexed as

AthletesFootballHockeyMagnetic Resonance ImagingAtrophyBlood VolumeBrainCase-Control StudiesCerebral HemorrhageCerebrovascular CirculationHumansMagnetic Resonance SpectroscopyMaleMiddle AgedMultimodal ImagingWhite Matter

Identifiers

PMID30080799
PMCPMC6126951
OpenAlexW2887026574

What OpenQuestion holds

Textmetadata
LicenceTDM
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.