alexa Chronic neuropathologies of single and repetitive TBI: substrates of dementia?
Neurology

Neurology

Journal of Neurology & Neurophysiology

Author(s): Smith DH, Johnson VE, Stewart W, Smith DH, Johnson VE, Stewart W

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Abstract Traumatic brain injury (TBI) has long been recognized to be a risk factor for dementia. This association has, however, only recently gained widespread attention through the increased awareness of 'chronic traumatic encephalopathy' (CTE) in athletes exposed to repetitive head injury. Originally termed 'dementia pugilistica' and linked to a career in boxing, descriptions of the neuropathological features of CTE include brain atrophy, cavum septum pellucidum, and amyloid-β, tau and TDP-43 pathologies, many of which might contribute to clinical syndromes of cognitive impairment. Similar chronic pathologies are also commonly found years after just a single moderate to severe TBI. However, little consensus currently exists on specific features of these post-TBI syndromes that might permit their confident clinical and/or pathological diagnosis. Moreover, the mechanisms contributing to neurodegeneration following TBI largely remain unknown. Here, we review the current literature and controversies in the study of chronic neuropathological changes after TBI.
This article was published in Nat Rev Neurol and referenced in Journal of Neurology & Neurophysiology

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