ArticleJournal of neurotrauma2024
A Pilot Study Investigating the Use of Serum Glial Fibrillary Acidic Protein to Monitor Changes in Brain White Matter Integrity After Repetitive Head Hits During a Single Collegiate Football Game.
Article in Journal of neurotrauma, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Repetitive Head Impacts During Contact Sports and Fluid Biomarkers of Neural Damage: A Meta-analysis.Sports medicine (Auckland, N.Z.) · 2026Pooled it
- Transglutaminase 2 Deletion Enhances Astrocyte-to-Neuron Metabolic Support and Attenuates Subacute Pathology Following Repetitive Mild Traumatic Brain Injury.bioRxiv : the preprint server for biology · 2026Article
- Review
- Neuroinflammatory mechanisms may help identify candidate biomarkers in chronic traumatic encephalopathy (CTE).Free neuropathology · 2025Review
- Mental health trajectory throughout high school football career: a four-year prospective cohort study.Frontiers in psychiatry · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Repetitive head hits (RHHs) in sports and military settings are increasingly recognized as a risk factor for adverse neurological outcomes, but they are not currently tracked. Blood-based biomarkers of concussion have recently been shown to increase after nonconcussive RHHs during a single sporting contest, raising the possibility that they could be used in real time to monitor the brain's early response to repeated asymptomatic head hits. To test this hypothesis, we measured GFAP in serum immediately before (T0), immediately after (T1) and 45 min (T2) after a single collegiate football game in 30 athletes. Glial fibrillary acidic protein (GFAP) changes were correlated with three measures of head impact exposure (number of hits, total linear acceleration, and total rotational acceleration captured by helmet impact sensors) and to changes in brain white matter (WM) integrity, estimated by regional changes in fractional anisotropy (FA) and mean diffusivity (MD) on diffusion tensor imaging from 24 h before (T1) to 48 h after (T3) the game. To account for the potentially confounding effects of physical exertion on GFAP, correlations were adjusted for kilocalories of energy expended during the game measured by wearable body sensors. All 30 participants were male with a mean age of 19.5 ± 1.2 years. No participant had a concussion during the index game. We observed a significant increase in GFAP from T0 to T1 (mean 79.69 vs. 91.95 pg/mL,
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