Cited by 110Traumatic Brain Injury and Neurovascular DisturbancesTraumatic Brain Injury ResearchAutomotive and Human Injury Biomechanics

Regional and temporal characterization of neuronal, glial, and axonal response after traumatic brain injury in the mouse

Carbonell, W. Shawn, Grady, M. S.·1999·Acta Neuropathologica

Abstract

Fluid percussion injury (FPI) is a commonly used and clinically relevant model of traumatic brain injury (TBI) in the rat. Recently, our lab successfully adapted FPI to mice. To account for differences in response to injury between mice and rats and provide a foundation for further use of FPI in gene-targeting studies, we sought to characterize the temporal and regional response to FPI in male C57BL/6 mice. Animals were killed at 10 min, 24 h, and 4, 7, 14, and 35 days (n = 3 for each group) after a very severe parasagittal FPI (> 4.0 atm) or sham injury (n = 3). Extensive numbers of damaged neurons were consistently found in the ipsilateral cortex, thalamus, and hippocampus by 10 min. This damage was nearly identical at 24 h, but quickly declined at subsequent time points. Activated microglia were found only in regions of neuronal injury at the earliest time points. Glial fibrillary acidic protein immunoreactivity reached significantly higher levels compared with controls at 7 days (P < 0. 05) in the cortex, thalamus, and hippocampus and remained elevated for 35 days. White matter degeneration was present in all regions examined. This damage did not appear until at least day 4, but progressed up to day 35. The spatial pattern of damage we observed in mice after FPI is similar to that seen in rats. However, the temporal progression of neuronal injury in mice is comparatively abbreviated in the hippocampus and thalamus. In conclusion, these results suggest that FPI in mice may…

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Crossref · 10.1007/s004010051100

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  • Many biological pathways are disrupted by experimental TBI resulting in progressive neurodegeneration including atrophy, neuronal loss, and axonal degeneration which are often associated with neuroinflammation including macrophage reactivity.

    “Many biological pathways are disrupted by experimental TBI resulting in progressive neurodegeneration including atrophy, neuronal loss, and axonal degeneration which are often associated with neuroinflammation including macrophage reactivity (82–85).”

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Authors
Carbonell, W. S., & Grady, M. S.
Affiliations
University of Pennsylvania (US)
Venue
Acta Neuropathologica
Published
1999-10-08
Volume
98
Issue
4
Pages
396-406
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2029497833
Cited by
110
References
0
Citations by year
2025: 2 · 2024: 4 · 2023: 7 · 2022: 2 · 2021: 4 · 2020: 3 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 5 · 2015: 8 · 2014: 5 · 2013: 4 · 2012: 8
FWCI
1.25
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p50ns030305-05, 5r01ns033107-03)
  • National Institute of Neurological Disorders and Stroke (NS-30305, NS33107)
Topics
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Automotive and Human Injury Biomechanics
Keywords
traumatic brain injury, fluid percussion injury, mouse model, neuronal injury, microglial activation, glial fibrillary acidic protein, white matter degeneration, hippocampus, thalamus, cortex, C57BL/6 mice
MeSH terms
Animals, Axons, Coloring Agents, Postural Balance, Glial Fibrillary Acidic Protein, Gliosis, Immunohistochemistry, Male, Mice, Inbred C57BL, Nerve Degeneration, Nerve Tissue Proteins, Neuroglia, Neurons, Time Factors, Silver Staining, Brain Injury, Chronic, Mice

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