Evidence map›Paper›PMID 37332596›Full record

ArticleiScience2023

The modulatory role of cannabis use in subconcussive neural injury.

Rachel M Kalbfell, Devin J Rettke, Ken Mackie, Keisuke Ejima, Jaroslaw Harezlak, Isabella L Alexander, Jim Wager-Miller, Blair D Johnson, Sharlene D Newman, Keisuke Kawata

Open access · goldAbstract read
In one paragraph

Article in iScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 13% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Cannabidiol in Sports: A Brazilian Perspective.ACS pharmacology & translational science · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
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 4 institutions in 2 countries.

Rachel M KalbfellDepartment of Kinesiology, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Devin J RettkeDepartment of Kinesiology, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Ken MackieDepartment of Psychological and Brain Sciences and Gill Center for Molecular Bioscience, The College of Arts and Sciences, Indiana University, Bloomington, IN, USA.
Keisuke EjimaLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Jaroslaw HarezlakDepartment of Epidemiology and Biostatistics, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Isabella L AlexanderDepartment of Kinesiology, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Jim Wager-MillerDepartment of Psychological and Brain Sciences and Gill Center for Molecular Bioscience, The College of Arts and Sciences, Indiana University, Bloomington, IN, USA.
Blair D JohnsonDepartment of Kinesiology, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Sharlene D NewmanAlabama Life Research Institute, University of Alabama, Tuscaloosa, AL, USA.
Keisuke KawataDepartment of Kinesiology, Indiana University School of Public Health-Bloomington, Bloomington, IN, USA.
Indiana University Bloomington · USNanyang Technological University · SGUniversity of Alabama · USWashington University in St. Louis · US

Funding

Subconcussive neurodegenerative progression in adolescent athletesR01NS113950 · NINDS · TRUSTEES OF INDIANA UNIVERSITY · PI KAWATA, KEISUKE · 2021 to 2025
$2.8M
Mechanisms and treatment of adolescent phytocannabinoid impairment of prefrontal cortex functionR01DA053746 · NIDA · TRUSTEES OF INDIANA UNIVERSITY · PI HUI-CHEN LU, Kenneth Mackie · 2022 to 2026
$2.2M
Neuroimaging and blood biomarkers for subconcussive neural stress on ADHDR21NS116548 · NINDS · TRUSTEES OF INDIANA UNIVERSITY · PI KAWATA, KEISUKE, NEWMAN, SHARLENE D · 2020 to 2020
$436k
NIDA NIH HHS R01 DA053746NINDS NIH HHS R01 NS113950NINDS NIH HHS R21 NS116548
6 · The paper itself

Abstract

Cannabis use has become popular among athletes, many of whom are exposed to repetitive subconcussive head impacts. We aimed to test whether chronic cannabis use would be neuroprotective or exacerbating against acute subconcussive head impacts. This trial included 43 adult soccer players (Cannabis group using cannabis at least once a week for the past 6 months, n = 24; non-cannabis control group, n = 19). Twenty soccer headings, induced by our controlled heading model, significantly impaired ocular-motor function, but the degrees of impairments were less in the cannabis group compared to controls. The control group significantly increased its serum S100B level after heading, whereas no change was observed in the cannabis group. There was no group difference in serum neurofilament light levels at any time point. Our data suggest that chronic cannabis use may be associated with an enhancement of oculomotor functional resiliency and suppression of the neuroinflammatory response following 20 soccer headings.

Indexed as

Clinical medicineClinical neurosciencePlants

Identifiers

PMID37332596
PMCPMC10275955
OpenAlexW4378071435

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.