Cited by 265Traumatic Brain Injury and Neurovascular DisturbancesTraumatic Brain Injury ResearchAlzheimer's disease research and treatments

Molecular mechanisms of cognitive dysfunction following traumatic brain injury

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Walker, Kendall R., Tesco, Giuseppina·2013·Frontiers in Aging Neuroscience

Abstract

Traumatic brain injury (TBI) results in significant disability due to cognitive deficits particularly in attention, learning and memory, and higher-order executive functions. The role of TBI in chronic neurodegeneration and the development of neurodegenerative diseases including Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic Lateral Sclerosis (ALS) and most recently chronic traumatic encephalopathy (CTE) is of particular importance. However, despite significant effort very few therapeutic options exist to prevent or reverse cognitive impairment following TBI. In this review, we present experimental evidence of the known secondary injury mechanisms which contribute to neuronal cell loss, axonal injury, and synaptic dysfunction and hence cognitive impairment both acutely and chronically following TBI. In particular we focus on the mechanisms linking TBI to the development of two forms of dementia: AD and CTE. We provide evidence of potential molecular mechanisms involved in modulating Aβ and Tau following TBI and provide evidence of the role of these mechanisms in AD pathology. Additionally we propose a mechanism by which Aβ generated as a direct result of TBI is capable of exacerbating secondary injury mechanisms thereby establishing a neurotoxic cascade that leads to chronic neurodegeneration.

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Crossref · 10.3389/fnagi.2013.00029

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  • Adults experience chronic fatigue, loss of libido or amenorrhea, or overt gonadotropin deficiency in addition to a variety of neurocognitive complaints after TBI.

    “Likewise, adults experience chronic fatigue, loss of libido or amenorrhea, or overt gonadotropin deficiency in addition to a variety of neurocognitive complaints [12,50].”

    From Update of Endocrine Dysfunction following Pediatric Traumatic Brain Injury (2015) · cites this paper as [12]

    The “TBI a global health concern” section reports persistent post-TBI deficits in attention, learning, memory, and executive function. It does not report chronic fatigue, loss of libido, amenorrhea, or gonadotropin deficiency; searches for those terms and related endocrine terms found no supporting passage. Page numbers are unavailable in our copy. (LLM, conf=0.86)

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  • Secondary injury typically develops within hours or days to weeks following the primary injury.

    “Secondary injury typically develops within hours or days to weeks following the primary injury [12].”
  • Neuropsychological testing in post-concussive syndrome may reveal persistent, yet subtle, cognitive deficits, most often in the executive domain.

    “Neuropsychological testing in PCS may reveal persistent, yet subtle, cognitive deficits, most often in the executive domain [192].”

    From The neuropathology of sport (2014) · cites this paper as [192]

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Authors
Walker, K. R., & Tesco, G.
Affiliations
Tufts University (US)
Corresponding author
Tesco, Giuseppina
Venue
Frontiers in Aging Neuroscience
Published
2013
Volume
5
Pages
29-29
ISSN
1663-4365 (ISSN-L)
OpenAlex
W2008657247
Cited by
265
References
275
Citations by year
2026: 13 · 2025: 18 · 2024: 11 · 2023: 21 · 2022: 23 · 2021: 15 · 2020: 39 · 2019: 28 · 2018: 14 · 2017: 27 · 2016: 21 · 2015: 19 · 2014: 11 · 2013: 5
FWCI
11.85
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Aging Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Cure Alzheimer's Fund
  • National Institute on Aging (R01AG033016, R01AG025952)
Topics
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
traumatic brain injury, cognitive impairment, secondary injury mechanisms, chronic traumatic encephalopathy, Alzheimer's disease, amyloid-beta, tau protein, neurodegeneration, axonal injury, synaptic dysfunction, neuronal loss, dementia

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