Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury

Evaluation of the chronic effects of spinal cord injury (SCI) has long focused on sensorimotor deficits, neuropathic pain, bladder/bowel dysfunction, loss of sexual function, and emotional distress. Although not well appreciated clinically, SCI can cause cognitive impairment including deficits in le...

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Main Authors: Yun Li, Tuoxin Cao, Rodney M. Ritzel, Junyun He, Alan I. Faden, Junfang Wu
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/9/6/1420
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author Yun Li
Tuoxin Cao
Rodney M. Ritzel
Junyun He
Alan I. Faden
Junfang Wu
author_facet Yun Li
Tuoxin Cao
Rodney M. Ritzel
Junyun He
Alan I. Faden
Junfang Wu
author_sort Yun Li
collection DOAJ
description Evaluation of the chronic effects of spinal cord injury (SCI) has long focused on sensorimotor deficits, neuropathic pain, bladder/bowel dysfunction, loss of sexual function, and emotional distress. Although not well appreciated clinically, SCI can cause cognitive impairment including deficits in learning and memory, executive function, attention, and processing speed; it also commonly leads to depression. Recent large-scale longitudinal population-based studies indicate that patients with isolated SCI (without concurrent brain injury) are at a high risk of dementia associated with substantial cognitive impairments. Yet, little basic research has addressed potential mechanisms for cognitive impairment and depression after injury. In addition to contributing to disability in their own right, these changes can adversely affect rehabilitation and recovery and reduce quality of life. Here, we review clinical and experimental work on the complex and varied responses in the brain following SCI. We also discuss potential mechanisms responsible for these less well-examined, important SCI consequences. In addition, we outline the existing and developing therapeutic options aimed at reducing SCI-induced brain neuroinflammation and post-injury cognitive and emotional impairments.
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spelling doaj.art-3ab5e62ed02a4fc3a102a546a09264f02023-11-20T03:08:24ZengMDPI AGCells2073-44092020-06-0196142010.3390/cells9061420Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord InjuryYun Li0Tuoxin Cao1Rodney M. Ritzel2Junyun He3Alan I. Faden4Junfang Wu5Department of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USADepartment of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USADepartment of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USADepartment of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USADepartment of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USADepartment of Anesthesiology and Center for Shock, Trauma and Anesthesiology Research (STAR), University of Maryland School of Medicine, Baltimore, MD 21201, USAEvaluation of the chronic effects of spinal cord injury (SCI) has long focused on sensorimotor deficits, neuropathic pain, bladder/bowel dysfunction, loss of sexual function, and emotional distress. Although not well appreciated clinically, SCI can cause cognitive impairment including deficits in learning and memory, executive function, attention, and processing speed; it also commonly leads to depression. Recent large-scale longitudinal population-based studies indicate that patients with isolated SCI (without concurrent brain injury) are at a high risk of dementia associated with substantial cognitive impairments. Yet, little basic research has addressed potential mechanisms for cognitive impairment and depression after injury. In addition to contributing to disability in their own right, these changes can adversely affect rehabilitation and recovery and reduce quality of life. Here, we review clinical and experimental work on the complex and varied responses in the brain following SCI. We also discuss potential mechanisms responsible for these less well-examined, important SCI consequences. In addition, we outline the existing and developing therapeutic options aimed at reducing SCI-induced brain neuroinflammation and post-injury cognitive and emotional impairments.https://www.mdpi.com/2073-4409/9/6/1420spinal cord injurydepressioncognitiondementianeuroinflammationbrain
spellingShingle Yun Li
Tuoxin Cao
Rodney M. Ritzel
Junyun He
Alan I. Faden
Junfang Wu
Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
Cells
spinal cord injury
depression
cognition
dementia
neuroinflammation
brain
title Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
title_full Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
title_fullStr Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
title_full_unstemmed Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
title_short Dementia, Depression, and Associated Brain Inflammatory Mechanisms after Spinal Cord Injury
title_sort dementia depression and associated brain inflammatory mechanisms after spinal cord injury
topic spinal cord injury
depression
cognition
dementia
neuroinflammation
brain
url https://www.mdpi.com/2073-4409/9/6/1420
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