Cited by 669Traumatic Brain Injury ResearchTraumatic Brain Injury and Neurovascular DisturbancesAutomotive and Human Injury Biomechanics

The Neuropathology and Neurobiology of Traumatic Brain Injury

Open access
Blennow, Kaj, Hardy, John, Zetterberg, Henrik·2012·Neuron

Abstract

The acute and long-term consequences of traumatic brain injury (TBI) have received increased attention in recent years. In this Review, we discuss the neuropathology and neural mechanisms associated with TBI, drawing on findings from sports-induced TBI in athletes, in whom acute TBI damages axons and elicits both regenerative and degenerative tissue responses in the brain and in whom repeated concussions may initiate a long-term neurodegenerative process called dementia pugilistica or chronic traumatic encephalopathy (CTE). We also consider how the neuropathology and neurobiology of CTE in many ways resembles other neurodegenerative illnesses such as Alzheimer's disease, particularly with respect to mismetabolism and aggregation of tau, β-amyloid, and TDP-43. Finally, we explore how translational research in animal models of acceleration/deceleration types of injury relevant for concussion together with clinical studies employing imaging and biochemical markers may further elucidate the neurobiology of TBI and CTE.

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Crossref · 10.1016/j.neuron.2012.11.021

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  • Others classify TBI into acute and chronic mechanisms, with chronic brain injury called chronic traumatic encephalopathy (CTE), a neurodegenerative disorder due to chronic repetitive head trauma in athletes participating in contact sports.

    “Others classify TBI into acute and chronic mechanisms: 1) acute brain injury that consists of mild TBI or concus-sion, including its short-term sequel and catastrophic brain injury that may lead to death; or 2) chronic brain injury, called chronic traumatic encephalopathy (CTE), which is a neurodegenerative disorder due to chronic repetitive head trauma in athletes participating in contact sports”
  • The patchy, perivascular location of PHF-tau pathology in sulcal depths, prominent in early CTE, is most likely related to the physics of traumatic injury and shear deformation of the brain.

    “The patchy, perivascular location of the PHF-tau pathology in sulcal depths, features prominent in early CTE, is most likely related to the physics of traumatic injury and shear deformation of the brain.”

    From The neuropathology of sport (2014) · cites this paper as [11]

  • Stress and resultant axonal injury are greatest at the interface of two tissues with differing viscoelastic properties, and the depths of cortical sulci are areas of stress concentration.

    “Stress and resultant axonal injury are greatest at the interface of two tissues with differing viscoelastic properties (such as between blood vessels and brain, or between gray and white matter) and the depths of the cortical sulci are areas of stress concentration [11, 28, 33].”

    From The neuropathology of sport (2014) · cites this paper as [11]

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Authors
Blennow, K., Hardy, J., & Zetterberg, H.
Affiliations
  • Sahlgrenska University Hospital (SE)
  • UCL Queen Square Institute of Neurology (GB)
Corresponding author
Blennow, Kaj
Venue
Neuron
Publisher
Elsevier BV
Published
2012-12
Volume
76
Issue
5
Pages
886-899
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2048137511
Cited by
669
References
169
Citations by year
2026: 20 · 2025: 31 · 2024: 40 · 2023: 32 · 2022: 59 · 2021: 68 · 2020: 51 · 2019: 60 · 2018: 56 · 2017: 52 · 2016: 62 · 2015: 59 · 2014: 47 · 2013: 30
FWCI
5.43
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Automotive and Human Injury Biomechanics
Keywords
traumatic brain injury, chronic traumatic encephalopathy, concussion, sports-related head injury, axonal injury, neurodegeneration, tau aggregation, amyloid-beta, TDP-43, Alzheimer's disease, biomarkers, imaging biomarkers
MeSH terms
Animals, Brain, Brain Injuries, DNA-Binding Proteins, Humans, Neurobiology, Neurons, Amyloid beta-Peptides, tau Proteins, Neurodegenerative Diseases

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