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De Gasperi R, Gama Sosa MA, Perez Garcia G, Perez GM, Pryor D, Morrison CLA, Lind R, Abutarboush R, Kawoos U, Statz JK, Patterson J, Hof PR, Zhu CW, Ahlers ST, Cook DG, Elder GA. Metabotropic Glutamate Receptor 2 Expression Is Chronically Elevated in Male Rats With Post-Traumatic Stress Disorder Related Behavioral Traits Following Repetitive Low-Level Blast Exposure. J Neurotrauma 2024; 41:714-733. [PMID: 37917117 PMCID: PMC10902502 DOI: 10.1089/neu.2023.0252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023] Open
Abstract
Many military veterans who experienced blast-related traumatic brain injuries in the conflicts in Iraq and Afghanistan currently suffer from chronic cognitive and mental health problems that include depression and post-traumatic stress disorder (PTSD). Male rats exposed to repetitive low-level blast develop cognitive and PTSD-related behavioral traits that are present for more than 1 year after exposure. We previously reported that a group II metabotropic receptor (mGluR2/3) antagonist reversed blast-induced behavioral traits. In this report, we explored mGluR2/3 expression following blast exposure in male rats. Western blotting revealed that mGluR2 protein (but not mGluR3) was increased in all brain regions studied (anterior cortex, hippocampus, and amygdala) at 43 or 52 weeks after blast exposure but not at 2 weeks or 6 weeks. mGluR2 RNA was elevated at 52 weeks while mGluR3 was not. Immunohistochemical staining revealed no changes in the principally presynaptic localization of mGluR2 by blast exposure. Administering the mGluR2/3 antagonist LY341495 after behavioral traits had emerged rapidly reversed blast-induced effects on novel object recognition and cued fear responses 10 months following blast exposure. These studies support alterations in mGluR2 receptors as a key pathophysiological event following blast exposure and provide further support for group II metabotropic receptors as therapeutic targets in the neurobehavioral effects that follow blast injury.
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Affiliation(s)
- Rita De Gasperi
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Miguel A. Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Georgina Perez Garcia
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gissel M. Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Dylan Pryor
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Chenel L-A. Morrison
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Northeast Regional Alliance Health Careers Opportunity Program, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Rachel Lind
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Naval Medical Research Command, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Naval Medical Research Command, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Jonathan K. Statz
- Department of Neurotrauma, Naval Medical Research Command, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Jacob Patterson
- Department of Neurotrauma, Naval Medical Research Command, Silver Spring, Maryland, USA
| | - Patrick R. Hof
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Carolyn W. Zhu
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stephen T. Ahlers
- Department of Neurotrauma, Naval Medical Research Command, Silver Spring, Maryland, USA
| | - David G. Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
- Department of Medicine, Pharmacology, and Psychiatry, University of Washington, Seattle, Washington, USA
- Department of Behavioral Sciences, University of Washington, Seattle, Washington, USA
| | - Gregory A. Elder
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
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Elder GA, Gama Sosa MA, De Gasperi R, Perez Garcia G, Perez GM, Abutarboush R, Kawoos U, Zhu CW, Janssen WGM, Stone JR, Hof PR, Cook DG, Ahlers ST. The Neurovascular Unit as a Locus of Injury in Low-Level Blast-Induced Neurotrauma. Int J Mol Sci 2024; 25:1150. [PMID: 38256223 PMCID: PMC10816929 DOI: 10.3390/ijms25021150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Blast-induced neurotrauma has received much attention over the past decade. Vascular injury occurs early following blast exposure. Indeed, in animal models that approximate human mild traumatic brain injury or subclinical blast exposure, vascular pathology can occur in the presence of a normal neuropil, suggesting that the vasculature is particularly vulnerable. Brain endothelial cells and their supporting glial and neuronal elements constitute a neurovascular unit (NVU). Blast injury disrupts gliovascular and neurovascular connections in addition to damaging endothelial cells, basal laminae, smooth muscle cells, and pericytes as well as causing extracellular matrix reorganization. Perivascular pathology becomes associated with phospho-tau accumulation and chronic perivascular inflammation. Disruption of the NVU should impact activity-dependent regulation of cerebral blood flow, blood-brain barrier permeability, and glymphatic flow. Here, we review work in an animal model of low-level blast injury that we have been studying for over a decade. We review work supporting the NVU as a locus of low-level blast injury. We integrate our findings with those from other laboratories studying similar models that collectively suggest that damage to astrocytes and other perivascular cells as well as chronic immune activation play a role in the persistent neurobehavioral changes that follow blast injury.
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Affiliation(s)
- Gregory A. Elder
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY 10468, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY 10029, USA;
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY 10029, USA; (M.A.G.S.); (R.D.G.)
- Mount Sinai Alzheimer’s Disease Research Center and the Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.W.Z.); (P.R.H.)
| | - Miguel A. Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY 10029, USA; (M.A.G.S.); (R.D.G.)
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, NY 10468, USA
| | - Rita De Gasperi
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY 10029, USA; (M.A.G.S.); (R.D.G.)
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY 10468, USA;
| | - Georgina Perez Garcia
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY 10029, USA;
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY 10468, USA;
| | - Gissel M. Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY 10468, USA;
| | - Rania Abutarboush
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical ResearchCommand, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA; (R.A.); (U.K.); (S.T.A.)
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD 20817, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical ResearchCommand, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA; (R.A.); (U.K.); (S.T.A.)
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, MD 20817, USA
| | - Carolyn W. Zhu
- Mount Sinai Alzheimer’s Disease Research Center and the Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.W.Z.); (P.R.H.)
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY 10468, USA;
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - William G. M. Janssen
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - James R. Stone
- Department of Radiology and Medical Imaging, University of Virginia, 480 Ray C Hunt Drive, Charlottesville, VA 22903, USA;
| | - Patrick R. Hof
- Mount Sinai Alzheimer’s Disease Research Center and the Ronald M. Loeb Center for Alzheimer’s Disease, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; (C.W.Z.); (P.R.H.)
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - David G. Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA 98108, USA;
- Department of Medicine, University of Washington, 1959 NE Pacific St., Seattle, WA 98195, USA
| | - Stephen T. Ahlers
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical ResearchCommand, 503 Robert Grant Avenue, Silver Spring, MD 20910, USA; (R.A.); (U.K.); (S.T.A.)
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Gama Sosa MA, De Gasperi R, Pryor D, Perez Garcia GS, Perez GM, Abutarboush R, Kawoos U, Hogg S, Ache B, Sowa A, Tetreault T, Varghese M, Cook DG, Zhu CW, Tappan SJ, Janssen WGM, Hof PR, Ahlers ST, Elder GA. Late chronic local inflammation, synaptic alterations, vascular remodeling and arteriovenous malformations in the brains of male rats exposed to repetitive low-level blast overpressures. Acta Neuropathol Commun 2023; 11:81. [PMID: 37173747 PMCID: PMC10176873 DOI: 10.1186/s40478-023-01553-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 03/16/2023] [Indexed: 05/15/2023] Open
Abstract
In the course of military operations in modern war theaters, blast exposures are associated with the development of a variety of mental health disorders associated with a post-traumatic stress disorder-related features, including anxiety, impulsivity, insomnia, suicidality, depression, and cognitive decline. Several lines of evidence indicate that acute and chronic cerebral vascular alterations are involved in the development of these blast-induced neuropsychiatric changes. In the present study, we investigated late occurring neuropathological events associated with cerebrovascular alterations in a rat model of repetitive low-level blast-exposures (3 × 74.5 kPa). The observed events included hippocampal hypoperfusion associated with late-onset inflammation, vascular extracellular matrix degeneration, synaptic structural changes and neuronal loss. We also demonstrate that arteriovenous malformations in exposed animals are a direct consequence of blast-induced tissue tears. Overall, our results further identify the cerebral vasculature as a main target for blast-induced damage and support the urgent need to develop early therapeutic approaches for the prevention of blast-induced late-onset neurovascular degenerative processes.
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Affiliation(s)
- Miguel A Gama Sosa
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA.
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Rita De Gasperi
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Dylan Pryor
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Georgina S Perez Garcia
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
| | - Gissel M Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, USA
| | - Seth Hogg
- Micro Photonics, Inc, 1550 Pond Road, Suite 110, Allentown, PA, 18104, USA
| | - Benjamin Ache
- Micro Photonics, Inc, 1550 Pond Road, Suite 110, Allentown, PA, 18104, USA
| | - Allison Sowa
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | | | - Merina Varghese
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - David G Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA, 98108, USA
- Department of Medicine, University of Washington, 1959 NE Pacific St, Seattle, WA, 98195, USA
| | - Carolyn W Zhu
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Susan J Tappan
- MBF Bioscience LLC, 185 Allen Brook Lane, Williston, VT, 05495, USA
| | - William G M Janssen
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Patrick R Hof
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Stephen T Ahlers
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - Gregory A Elder
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
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Baskin BM, Logsdon AF, Janet Lee S, Foresi BD, Peskind E, Banks WA, Cook DG, Schindler AG. Timing matters: Sex differences in inflammatory and behavioral outcomes following repetitive blast mild traumatic brain injury. Brain Behav Immun 2023; 110:222-236. [PMID: 36907289 PMCID: PMC10106404 DOI: 10.1016/j.bbi.2023.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 02/25/2023] [Accepted: 03/01/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND Repetitive blast-related mild traumatic brain injury (mTBI) caused by exposure to high explosives is increasingly common among warfighters as well as civilians. While women have been serving in military positions with increased risk of blast exposure since 2016, there are few published reports examining sex as a biological variable in models of blast mTBI, greatly limiting diagnosis and treatment capabilities. As such, here we examined outcomes of repetitive blast trauma in female and male mice in relation to potential behavioral, inflammatory, microbiome, and vascular dysfunction at multiple timepoints. METHODS In this study we utilized a well-established blast overpressure model to induce repetitive (3x) blast-mTBI in both female and male mice. Acutely following repetitive exposure, we measured serum and brain cytokine levels, blood-brain barrier (BBB) disruption, fecal microbial abundance, and locomotion and anxiety-like behavior in the open field assay. At the one-month timepoint, in female and male mice we assessed behavioral correlates of mTBI and PTSD-related symptoms commonly reported by Veterans with a history of blast-mTBI using the elevated zero maze, acoustic startle, and conditioned odorant aversion paradigms. RESULTS Repetitive blast exposure resulted in both similar (e.g., increased IL-6), and disparate (e.g., IL-10 increase only in females) patterns of acute serum and brain cytokine as well as gut microbiome changes in female and male mice. Acute BBB disruption following repetitive blast exposure was apparent in both sexes. While female and male blast mice both exhibited acute locomotor and anxiety-like deficits in the open field assay, only male mice exhibited adverse behavioral outcomes that lasted at least one-month. DISCUSSION Representing a novel survey of potential sex differences following repetitive blast trauma, our results demonstrate unique similar yet divergent patterns of blast-induced dysfunction in female vs. male mice and highlight novel targets for future diagnosis and therapeutic development.
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Affiliation(s)
- Britahny M Baskin
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA; Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Aric F Logsdon
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - Suhjung Janet Lee
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - Brian D Foresi
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA; Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA
| | - Elaine Peskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA; VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - William A Banks
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
| | - David G Cook
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA; Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA; VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Department of Pharmacology, University of Washington, Seattle, WA 98195, USA
| | - Abigail G Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195, USA; Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA; VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA.
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Garcia GP, Perez GM, Gasperi RD, Sosa MAG, Otero-Pagan A, Abutarboush R, Kawoos U, Statz JK, Patterson J, Zhu CW, Hof PR, Cook DG, Ahlers ST, Elder GA. (2R,6R)-Hydroxynorketamine Treatment of Rats Exposed to Repetitive Low-Level Blast Injury. Neurotrauma Rep 2023; 4:197-217. [PMID: 37020715 PMCID: PMC10068674 DOI: 10.1089/neur.2022.0088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Many military veterans who experienced blast-related traumatic brain injuries (TBIs) in the conflicts in Iraq and Afghanistan suffer from chronic cognitive and mental health problems, including post-traumatic stress disorder (PTSD). Male rats subjected to repetitive low-level blast exposure develop chronic cognitive and PTSD-related traits that develop in a delayed manner. Ketamine has received attention as a treatment for refractory depression and PTSD. (2R,6R)-hydroxynorketamine [(2R,6R)-HNK] is a ketamine metabolite that exerts rapid antidepressant actions. (2R,6R)-HNK has become of clinical interest because of its favorable side-effect profile, low abuse potential, and oral route of administration. We treated three cohorts of blast-exposed rats with (2R,6R)-HNK, beginning 7-11 months after blast exposure, a time when the behavioral phenotype is established. Each cohort consisted of groups (n = 10-13/group) as follows: 1) Sham-exposed treated with saline, 2) blast-exposed treated with saline, and 3) blast-exposed treated with a single dose of 20 mg/kg of (2R,6R)-HNK. (2R,6R)-HNK rescued blast-induced deficits in novel object recognition (NOR) and anxiety-related features in the elevated zero maze (EZM) in all three cohorts. Exaggerated acoustic startle was reversed in cohort 1, but not in cohort 3. (2R,6R)-HNK effects were still present in the EZM 12 days after administration in cohort 1 and 27 days after administration in NOR testing of cohorts 2 and 3. (2R,6R)-HNK may be beneficial for the neurobehavioral syndromes that follow blast exposure in military veterans. Additional studies will be needed to determine whether higher doses or more extended treatment regimens may be more effective.
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Affiliation(s)
- Georgina Perez Garcia
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gissel M. Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rita De Gasperi
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Miguel A. Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Alena Otero-Pagan
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Jonathan K. Statz
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Jacob Patterson
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Carolyn W. Zhu
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Patrick R. Hof
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David G. Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Stephen T. Ahlers
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Gregory A. Elder
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
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Gasperi RD, Gama Sosa MA, Perez Garcia GS, Perez GM, Abutarboush R, Kawoos U, Statz JK, Patterson J, Hof PR, Katsel P, Cook DG, Ahlers ST, Elder GA. Progressive Transcriptional Changes in the Amygdala Implicate Neuroinflammation in the Effects of Repetitive Low-Level Blast Exposure in Male Rats. J Neurotrauma 2023; 40:561-577. [PMID: 36262047 PMCID: PMC10040418 DOI: 10.1089/neu.2022.0282] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Chronic mental health problems are common among military veterans who sustained blast-related traumatic brain injuries. The reasons for this association remain unexplained. Male rats exposed to repetitive low-level blast overpressure (BOP) exposures exhibit chronic cognitive and post-traumatic stress disorder (PTSD)-related traits that develop in a delayed fashion. We examined blast-induced alterations on the transcriptome in four brain areas (anterior cortex, hippocampus, amygdala, and cerebellum) across the time frame over which the PTSD-related behavioral phenotype develops. When analyzed at 6 weeks or 12 months after blast exposure, relatively few differentially expressed genes (DEGs) were found. However, longitudinal analysis of amygdala, hippocampus, and anterior cortex between 6 weeks and 12 months revealed blast-specific DEG patterns. Six DEGs (hyaluronan and proteoglycan link protein 1 [Hapln1], glutamate metabotropic receptor 2 [Grm2], purinergic receptor P2y12 [P2ry12], C-C chemokine receptor type 5 [Ccr5], phenazine biosynthesis-like protein domain containing 1 [Pbld1], and cadherin related 23 [Cdh23]) were found altered in all three brain regions in blast-exposed animals. Pathway enrichment analysis using all DEGs or those uniquely changed revealed different transcription patterns in blast versus sham. In particular, the amygdala in blast-exposed animals had a unique set of enriched pathways related to stress responses, oxidative phosphorylation, and mitochondrial dysfunction. Upstream analysis implicated tumor necrosis factor (TNF)α signaling in blast-related effects in amygdala and anterior cortex. Eukaryotic initiating factor eIF4E (EIF4e), an upstream regulator of P2ry12 and Ccr5, was predicted to be activated in the amygdala. Quantitative polymerase chain reaction (qPCR) validated longitudinal changes in two TNFα regulated genes (cathepsin B [Ctsb], Hapln1), P2ry12, and Grm2. These studies have implications for understanding how blast injury damages the brain and implicates inflammation as a potential therapeutic target.
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Affiliation(s)
- Rita De Gasperi
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Miguel A. Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Georgina S. Perez Garcia
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gissel M. Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Jonathan K. Statz
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Jacob Patterson
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
- Parsons Corporation, Centreville, Virginia, USA
| | - Patrick R. Hof
- Department of Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Pavel Katsel
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David G. Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Stephen T. Ahlers
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Gregory A. Elder
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
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7
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Cook DG, Stemle LR, Stokes DL, Messerman AF, Meisler JA, Searcy CA. Habitat value of constructed breeding pools for the endangered Sonoma population of California tiger salamander. J Wildl Manage 2023. [DOI: 10.1002/jwmg.22370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
| | - Leyna R. Stemle
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
| | - David L. Stokes
- University of Washington Bothell, 18115 Campus Way NE, Box 358530 Bothell WA 98011 USA
| | - Arianne F. Messerman
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
| | | | - Christopher A. Searcy
- Department of Biology, University of Miami, 1301 Memorial Drive Coral Gables FL 33146 USA
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8
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Lee SJ, Logsdon AF, Yagi M, Baskin BM, Peskind ER, Raskind MM, Cook DG, Schindler AG. The dynorphin/kappa opioid receptor mediates adverse immunological and behavioral outcomes induced by repetitive blast trauma. J Neuroinflammation 2022; 19:288. [PMID: 36463243 PMCID: PMC9719647 DOI: 10.1186/s12974-022-02643-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/11/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Adverse pathophysiological and behavioral outcomes related to mild traumatic brain injury (mTBI), posttraumatic stress disorder (PTSD), and chronic pain are common following blast exposure and contribute to decreased quality of life, but underlying mechanisms and prophylactic/treatment options remain limited. The dynorphin/kappa opioid receptor (KOR) system helps regulate behavioral and inflammatory responses to stress and injury; however, it has yet to be investigated as a potential mechanism in either humans or animals exposed to blast. We hypothesized that blast-induced KOR activation mediates adverse outcomes related to inflammation and affective behavioral response. METHODS C57Bl/6 adult male mice were singly or repeatedly exposed to either sham (anesthesia only) or blast delivered by a pneumatic shock tube. The selective KOR antagonist norBNI or vehicle (saline) was administered 72 h prior to repetitive blast or sham exposure. Serum and brain were collected 10 min or 4 h post-exposure for dynorphin A-like immunoreactivity and cytokine measurements, respectively. At 1-month post-exposure, mice were tested in a series of behavioral assays related to adverse outcomes reported by humans with blast trauma. RESULTS Repetitive but not single blast exposure resulted in increased brain dynorphin A-like immunoreactivity. norBNI pretreatment blocked or significantly reduced blast-induced increase in serum and brain cytokines, including IL-6, at 4 h post exposure and aversive/anxiety-like behavioral dysfunction at 1-month post-exposure. CONCLUSIONS Our findings demonstrate a previously unreported role for the dynorphin/KOR system as a mediator of biochemical and behavioral dysfunction following repetitive blast exposure and highlight this system as a potential prophylactic/therapeutic treatment target.
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Affiliation(s)
- Suhjung Janet Lee
- grid.413919.70000 0004 0420 6540VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, S182, 1660 South Columbian Way, Seattle, WA 98108 USA
| | - Aric F. Logsdon
- grid.413919.70000 0004 0420 6540VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, S182, 1660 South Columbian Way, Seattle, WA 98108 USA ,grid.34477.330000000122986657Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA 98195 USA
| | - Mayumi Yagi
- grid.413919.70000 0004 0420 6540VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, S182, 1660 South Columbian Way, Seattle, WA 98108 USA
| | - Britahny M. Baskin
- grid.34477.330000000122986657Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195 USA
| | - Elaine. R. Peskind
- grid.413919.70000 0004 0420 6540VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108 USA ,grid.34477.330000000122986657Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195 USA
| | - Murray M. Raskind
- grid.413919.70000 0004 0420 6540VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108 USA ,grid.34477.330000000122986657Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195 USA
| | - David G. Cook
- grid.413919.70000 0004 0420 6540VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, S182, 1660 South Columbian Way, Seattle, WA 98108 USA ,grid.34477.330000000122986657Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195 USA ,grid.34477.330000000122986657Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA 98195 USA ,grid.34477.330000000122986657Department of Pharmacology, University of Washington, Seattle, WA 98195 USA
| | - Abigail. G. Schindler
- grid.413919.70000 0004 0420 6540VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, S182, 1660 South Columbian Way, Seattle, WA 98108 USA ,grid.34477.330000000122986657Graduate Program in Neuroscience, University of Washington, Seattle, WA 98195 USA ,grid.34477.330000000122986657Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98195 USA ,grid.34477.330000000122986657Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA 98195 USA
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9
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Baskin B, Lee SJ, Skillen E, Wong K, Rau H, Hendrickson RC, Pagulayan K, Raskind MA, Peskind ER, Phillips PEM, Cook DG, Schindler AG. Repetitive Blast Exposure Increases Appetitive Motivation and Behavioral Inflexibility in Male Mice. Front Behav Neurosci 2022; 15:792648. [PMID: 35002648 PMCID: PMC8727531 DOI: 10.3389/fnbeh.2021.792648] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/25/2021] [Indexed: 12/02/2022] Open
Abstract
Blast exposure (via detonation of high explosives) represents a major potential trauma source for Servicemembers and Veterans, often resulting in mild traumatic brain injury (mTBI). Executive dysfunction (e.g., alterations in memory, deficits in mental flexibility, difficulty with adaptability) is commonly reported by Veterans with a history of blast-related mTBI, leading to impaired daily functioning and decreased quality of life, but underlying mechanisms are not fully understood and have not been well studied in animal models of blast. To investigate potential underlying behavioral mechanisms contributing to deficits in executive functioning post-blast mTBI, here we examined how a history of repetitive blast exposure in male mice affects anxiety/compulsivity-like outcomes and appetitive goal-directed behavior using an established mouse model of blast mTBI. We hypothesized that repetitive blast exposure in male mice would result in anxiety/compulsivity-like outcomes and corresponding performance deficits in operant-based reward learning and behavioral flexibility paradigms. Instead, results demonstrate an increase in reward-seeking and goal-directed behavior and a congruent decrease in behavioral flexibility. We also report chronic adverse behavioral changes related to anxiety, compulsivity, and hyperarousal. In combination, these data suggest that potential deficits in executive function following blast mTBI are at least in part related to enhanced compulsivity/hyperreactivity and behavioral inflexibility and not simply due to a lack of motivation or inability to acquire task parameters, with important implications for subsequent diagnosis and treatment management.
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Affiliation(s)
- Britahny Baskin
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States
| | - Suhjung Janet Lee
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Emma Skillen
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States
| | - Katrina Wong
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States
| | - Holly Rau
- VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Rebecca C Hendrickson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Kathleen Pagulayan
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Murray A Raskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Elaine R Peskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States
| | - Paul E M Phillips
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States.,Department of Pharmacology, University of Washington, Seattle, WA, United States
| | - David G Cook
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States.,Department of Pharmacology, University of Washington, Seattle, WA, United States.,Department of Medicine, University of Washington, Seattle, WA, United States
| | - Abigail G Schindler
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, United States.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, United States.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, United States
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10
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Perez Garcia G, Perez GM, Otero-Pagan A, Abutarboush R, Kawoos U, De Gasperi R, Gama Sosa MA, Pryor D, Hof PR, Cook DG, Gandy S, Ahlers ST, Elder GA. Transcranial Laser Therapy Does Not Improve Cognitive and Post-Traumatic Stress Disorder-Related Behavioral Traits in Rats Exposed to Repetitive Low-Level Blast Injury. Neurotrauma Rep 2021; 2:548-563. [PMID: 34901948 PMCID: PMC8655798 DOI: 10.1089/neur.2021.0005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Many military veterans who experienced blast-related traumatic brain injuries (TBIs) in the conflicts in Iraq and Afghanistan suffer from chronic cognitive and mental health problems, including post-traumatic stress disorder (PTSD). Transcranial laser therapy (TLT) uses low-power lasers emitting light in the far- to near-infrared ranges. Beneficial effects of TLT have been reported in neurological and mental-health-related disorders in humans and animal models, including TBI. Rats exposed to repetitive low-level blast develop chronic cognitive and PTSD-related behavioral traits. We tested whether TLT treatment could reverse these traits. Rats received a 74.5-kPa blast or sham exposures delivered one per day for 3 consecutive days. Beginning at 34 weeks after blast exposure, the following groups of rats were treated with active or sham TLT: 1) Sham-exposed rats (n = 12) were treated with sham TLT; 2) blast-exposed rats (n = 13) were treated with sham TLT; and 3) blast-exposed rats (n = 14) were treated with active TLT. Rats received 5 min of TLT five times per week for 6 weeks (wavelength, 808 nm; power of irradiance, 240 mW). At the end of treatment, rats were tested in tasks found previously to be most informative (novel object recognition, novel object localization, contextual/cued fear conditioning, elevated zero maze, and light/dark emergence). TLT did not improve blast-related effects in any of these tests, and blast-exposed rats were worse after TLT in some anxiety-related measures. Based on these findings, TLT does not appear to be a promising treatment for the chronic cognitive and mental health problems that follow blast injury.
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Affiliation(s)
- Georgina Perez Garcia
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gissel M. Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Alena Otero-Pagan
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Rita De Gasperi
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Miguel A. Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Dylan Pryor
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Patrick R. Hof
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David G. Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
- Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Sam Gandy
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Barbara and Maurice A. Deane Center for Wellness and Cognitive Health and the Mount Sinai NFL Neurological Care Center, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stephen T. Ahlers
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Gregory A. Elder
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
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11
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Alonge KM, Herbert MJ, Yagi M, Cook DG, Banks WA, Logsdon AF. Changes in Brain Matrix Glycan Sulfation Associate With Reactive Gliosis and Motor Coordination in Mice With Head Trauma. Front Behav Neurosci 2021; 15:745288. [PMID: 34776892 PMCID: PMC8581466 DOI: 10.3389/fnbeh.2021.745288] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/27/2021] [Indexed: 12/22/2022] Open
Abstract
Perineuronal nets (PNNs) are extracellular matrix (ECM) structures that enmesh and regulate neurocircuits involved in motor and sensory function. Maladaptive changes to the composition and/or abundance of PNNs have been implicated in preclinical models of neuroinflammation and neurocircuit destabilization. The central nervous system (CNS) is limited in its capacity to repair and reorganize neural networks following traumatic brain injury (TBI) and little is known about mechanisms of ECM repair in the adult brain after TBI. In this study, adult male C57BL/6 mice were subjected to a TBI via a controlled cortical impact (CCI) to the right motor and somatosensory cortices. At 7 days following CCI, histological analysis revealed a loss of Wisteria floribunda agglutinin (WFA) positive PNN matrices in the ipsilateral cortex. PNNs are comprised of chondroitin sulfate (CS) and dermatan sulfate (DS)-glycosaminoglycans (GAGs), the composition of which are known to influence neuronal integrity and repair. Using an innovative liquid chromatography tandem mass spectrometry (LC-MS/MS) method, we analyzed the relative abundance of six specific CS/DS-GAG isomers (Δ4S-, Δ6S-, Δ4S6S-, Δ2S6S-, Δ0S-CS, and Δ2S4S-DS) from fixed-brain sections after CCI injury. We report a significant shift in CS/DS-GAG sulfation patterns within the rostro-caudal extent of the injury site from mice exposed to CCI at 7 days, but not at 1 day, post-CCI. In the ipsilateral thalamus, the appearance of WFA+ puncta occurred in tandem with gliosis at 7 days post-CCI, but weakly colocalized with markers of gliosis. Thalamic WFA+ puncta showed moderate colocalization with neuronal ubiquitin C-terminal hydrolase L1 (UCHL1), a clinical biomarker for TBI injury. A shift in CS/DS-GAG sulfation was also present in the thalamus including an increase of 6S-CS, which is a specific isomer that associates with the presence of glial scarring. Upregulation of the 6S-CS-specific sulfotransferase (CHST3) gene expression was accompanied by reactive gliosis in both the ipsilateral cortex and thalamus. Moreover, changes in 6S-CS extracted from the thalamus positively correlated with deficits in motor coordination after CCI. Collectively, these data argue that CCI alters CS/DS-GAG sulfation in association with the spatiotemporal progression of neurorepair. Therapeutic interventions targeting restoration of CS/DS-GAG sulfation patterns may improve outcomes from TBI.
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Affiliation(s)
- Kimberly M Alonge
- Department of Medicine, University of Washington Medicine Diabetes Institute, University of Washington, Seattle, WA, United States
| | - Melanie J Herbert
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
| | - Mayumi Yagi
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
| | - David G Cook
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States.,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, United States
| | - William A Banks
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States.,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Aric F Logsdon
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States.,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, United States
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12
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Gama Sosa MA, De Gasperi R, Pryor D, Perez Garcia GS, Perez GM, Abutarboush R, Kawoos U, Hogg S, Ache B, Janssen WG, Sowa A, Tetreault T, Cook DG, Tappan SJ, Gandy S, Hof PR, Ahlers ST, Elder GA. Low-level blast exposure induces chronic vascular remodeling, perivascular astrocytic degeneration and vascular-associated neuroinflammation. Acta Neuropathol Commun 2021; 9:167. [PMID: 34654480 PMCID: PMC8518227 DOI: 10.1186/s40478-021-01269-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 09/29/2021] [Indexed: 02/08/2023] Open
Abstract
Cerebral vascular injury as a consequence of blast-induced traumatic brain injury is primarily the result of blast wave-induced mechanical disruptions within the neurovascular unit. In rodent models of blast-induced traumatic brain injury, chronic vascular degenerative processes are associated with the development of an age-dependent post-traumatic stress disorder-like phenotype. To investigate the evolution of blast-induced chronic vascular degenerative changes, Long-Evans rats were blast-exposed (3 × 74.5 kPa) and their brains analyzed at different times post-exposure by X-ray microcomputed tomography, immunohistochemistry and electron microscopy. On microcomputed tomography scans, regional cerebral vascular attenuation or occlusion was observed as early as 48 h post-blast, and cerebral vascular disorganization was visible at 6 weeks and more accentuated at 13 months post-blast. Progression of the late-onset pathology was characterized by detachment of the endothelial and smooth muscle cellular elements from the neuropil due to degeneration and loss of arteriolar perivascular astrocytes. Development of this pathology was associated with vascular remodeling and neuroinflammation as increased levels of matrix metalloproteinases (MMP-2 and MMP-9), collagen type IV loss, and microglial activation were observed in the affected vasculature. Blast-induced chronic alterations within the neurovascular unit should affect cerebral blood circulation, glymphatic flow and intramural periarterial drainage, all of which may contribute to development of the blast-induced behavioral phenotype. Our results also identify astrocytic degeneration as a potential target for the development of therapies to treat blast-induced brain injury.
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Affiliation(s)
- Miguel A Gama Sosa
- General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA.
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Rita De Gasperi
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Dylan Pryor
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Georgina S Perez Garcia
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
| | - Gissel M Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc, Bethesda, MD, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
- The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc, Bethesda, MD, USA
| | - Seth Hogg
- Micro Photonics, Inc, 1550 Pond Road, Suite 110, Allentown, PA, 18104, USA
| | - Benjamin Ache
- Micro Photonics, Inc, 1550 Pond Road, Suite 110, Allentown, PA, 18104, USA
| | - William G Janssen
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Allison Sowa
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | | | - David G Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA, 98108, USA
- Department of Medicine, University of Washington, 1959 NE Pacific St, Seattle, WA, 98195, USA
| | - Susan J Tappan
- MBF Bioscience LLC, 185 Allen Brook Lane, Williston, VT, 05495, USA
| | - Sam Gandy
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- NFL Neurological Care Center, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Patrick R Hof
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Stephen T Ahlers
- Department of Neurotrauma, Operational and Undersea Medicine Directorate, Naval Medical Research Center, 503 Robert Grant Avenue, Silver Spring, MD, 20910, USA
| | - Gregory A Elder
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, One Gustave Levy Place, New York, NY, 10029, USA
- Mount Sinai Alzheimer's Disease Research Center and the Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
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13
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Cross DJ, Huber BR, Silverman MA, Cline MM, Gill TB, Cross CG, Cook DG, Minoshima S. Intranasal Paclitaxel Alters Alzheimer's Disease Phenotypic Features in 3xTg-AD Mice. J Alzheimers Dis 2021; 83:379-394. [PMID: 34308901 DOI: 10.3233/jad-210109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Microtubule stabilizing drugs, commonly used as anti-cancer therapeutics, have been proposed for treatment of Alzheimer's disease (AD); however, many do not cross the blood-brain barrier. OBJECTIVE This research investigated if paclitaxel (PTX) delivered via the intranasal (IN) route could alter the phenotypic progression of AD in 3xTg-AD mice. METHODS We administered intranasal PTX in 3XTg-AD mice (3xTg-AD n = 15, 10 weeks and n = 10, 44 weeks, PTX: 0.6 mg/kg or 0.9%saline (SAL)) at 2-week intervals. After treatment, 3XTg-AD mice underwent manganese-enhanced magnetic resonance imaging to measure in vivo axonal transport. In a separate 3XTg-AD cohort, PTX-treated mice were tested in a radial water tread maze at 52 weeks of age after four treatments, and at 72 weeks of age, anxiety was assessed by an elevated-plus maze after 14 total treatments. RESULTS PTX increased axonal transport rates in treated 3XTg-AD compared to controls (p≤0.003). Further investigation using an in vitro neuron model of Aβ-induced axonal transport disruption confirmed PTX prevented axonal transport deficits. Confocal microscopy after treatment found fewer phospho-tau containing neurons (5.25±3.8 versus 8.33±2.5, p < 0.04) in the CA1, altered microglia, and reduced reactive astrocytes. PTX improved performance of 3xTg-AD on the water tread maze compared to controls and not significantly different from WT (Day 5, 143.8±43 versus 91.5±77s and Day 12, 138.3±52 versus 107.7±75s for SAL versus PTX). Elevated plus maze revealed that PTX-treated 3xTg-AD mice spent more time exploring open arms (Open arm 129.1±80 versus 20.9±31s for PTX versus SAL, p≤0.05). CONCLUSION Taken collectively, these findings indicate that intranasal-administered microtubule-stabilizing drugs may offer a potential therapeutic option for treating AD.
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Affiliation(s)
- Donna J Cross
- Department of Radiology and Imaging Sciences>, University of Utah, Salt Lake City, UT, USA
| | - Bertrand R Huber
- Boston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, MA, USA.,Department of Neurology, Boston University School of Medicine, Boston, MA, USA
| | - Michael A Silverman
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.,Centre for Cell Biology, Development, and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Marcella M Cline
- The Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA.,Departments of Medicine, Pharmacology, Psychiatry & Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Trevor B Gill
- Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - Chloe G Cross
- Department of Radiology and Imaging Sciences>, University of Utah, Salt Lake City, UT, USA
| | - David G Cook
- The Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA.,Departments of Medicine, Pharmacology, Psychiatry & Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Satoshi Minoshima
- Department of Radiology and Imaging Sciences>, University of Utah, Salt Lake City, UT, USA
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14
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Wang C, Shao C, Zhang L, Siedlak SL, Meabon JS, Peskind ER, Lu Y, Wang W, Perry G, Cook DG, Zhu X. Oxidative Stress Signaling in Blast TBI-Induced Tau Phosphorylation. Antioxidants (Basel) 2021; 10:antiox10060955. [PMID: 34203583 PMCID: PMC8232162 DOI: 10.3390/antiox10060955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/08/2021] [Accepted: 06/01/2021] [Indexed: 12/25/2022] Open
Abstract
Traumatic brain injury caused by blast is associated with long-term neuropathological changes including tau phosphorylation and pathology. In this study, we aimed to determine changes in initial tau phosphorylation after exposure to a single mild blast and the potential contribution of oxidative stress response pathways. C57BL/6 mice were exposed to a single blast overpressure (BOP) generated by a compressed gas-driven shock tube that recapitulates battlefield-relevant open-field BOP, and cortical tissues were harvested at different time points up to 24 h after blast for Western blot analysis. We found that BOP caused elevated tau phosphorylation at Ser202/Thr205 detected by the AT8 antibody at 1 h post-blast followed by tau phosphorylation at additional sites (Ser262 and Ser396/Ser404 detected by PHF1 antibody) and conformational changes detected by Alz50 antibody. BOP also induced acute oxidative damage at 1 h post-blast and gradually declined overtime. Interestingly, Extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK) were acutely activated in a similar temporal pattern as the rise and fall in oxidative stress after blast, with p38 showing a similar trend. However, glycogen synthase kinase-3 β (GSK3β) was inhibited at 1 h and remained inhibited for 24 h post blast. These results suggested that mitogen-activated protein kinases (MAPKs) but not GSK3β are likely involved in mediating the effects of oxidative stress on the initial increase of tau phosphorylation following a single mild blast.
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Affiliation(s)
- Chunyu Wang
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha 410083, China;
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
| | - Changjuan Shao
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
| | - Li Zhang
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
- Department of Endocrinology and Metabolism, Huashan Hospital, Fudan University, Shanghai 200240, China
| | - Sandra L. Siedlak
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
| | - James S. Meabon
- VA Puget Sound Health Care System, Seattle, WA 98108, USA; (J.S.M.); (E.R.P.); (D.G.C.)
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98115, USA
| | - Elaine R. Peskind
- VA Puget Sound Health Care System, Seattle, WA 98108, USA; (J.S.M.); (E.R.P.); (D.G.C.)
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98115, USA
| | - Yubing Lu
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
| | - Wenzhang Wang
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
| | - George Perry
- Department of Biology, College of Science, University of Texas at San Antonio, San Antonio, TX 78229, USA;
| | - David G. Cook
- VA Puget Sound Health Care System, Seattle, WA 98108, USA; (J.S.M.); (E.R.P.); (D.G.C.)
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA 98115, USA
- Departments of Medicine and Pharmacology, University of Washington, Seattle, WA 98195, USA
| | - Xiongwei Zhu
- Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA; (C.S.); (L.Z.); (S.L.S.); (Y.L.); (W.W.)
- Correspondence: ; Tel.: +1-216-368-5903
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15
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Schindler AG, Baskin B, Juarez B, Janet Lee S, Hendrickson R, Pagulayan K, Zweifel LS, Raskind MA, Phillips PEM, Peskind ER, Cook DG. Repetitive blast mild traumatic brain injury increases ethanol sensitivity in male mice and risky drinking behavior in male combat veterans. Alcohol Clin Exp Res 2021; 45:1051-1064. [PMID: 33760264 DOI: 10.1111/acer.14605] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Mild traumatic brain injury (mTBI) is common in civilians and highly prevalent among military service members. mTBI can increase health risk behaviors (e.g., sensation seeking, impulsivity) and addiction risk (e.g., for alcohol use disorder (AUD)), but how mTBI and substance use might interact to promote addiction risk remains poorly understood. Likewise, potential differences in single vs. repetitive mTBI in relation to alcohol use/abuse have not been previously examined. METHODS Here, we examined how a history of single (1×) or repetitive (3×) blast exposure (blast-mTBI) affects ethanol (EtOH)-induced behavioral and physiological outcomes using an established mouse model of blast-mTBI. To investigate potential translational relevance, we also examined self-report responses to the Alcohol Use Disorders Identification Test-Consumption questions (AUDIT-C), a widely used measure to identify potential hazardous drinking and AUD, and used a novel unsupervised machine learning approach to investigate whether a history of blast-mTBI affected drinking behaviors in Iraq/Afghanistan Veterans. RESULTS Both single and repetitive blast-mTBI in mice increased the sedative properties of EtOH (with no change in tolerance or metabolism), but only repetitive blast potentiated EtOH-induced locomotor stimulation and shifted EtOH intake patterns. Specifically, mice exposed to repetitive blasts showed increased consumption "front-loading" (e.g., a higher rate of consumption during an initial 2-h acute phase of a 24-h alcohol access period and decreased total daily intake) during an intermittent 2-bottle choice condition. Examination of AUDIT-C scores in Iraq/Afghanistan Veterans revealed an optimal 3-cluster solution: "low" (low intake and low frequency), "frequent" (low intake and high frequency), and "risky" (high intake and high frequency), where Veterans with a history of blast-mTBI displayed a shift in cluster assignment from "frequent" to "risky," as compared to Veterans who were deployed to Iraq/Afghanistan but had no lifetime history of TBI. CONCLUSIONS Together, these results offer new insight into how blast-mTBI may give increase AUD risk and highlight the increased potential for adverse health risk behaviors following repetitive blast-mTBI.
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Affiliation(s)
- Abigail G Schindler
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, USA
| | - Britahny Baskin
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, USA
| | - Barbara Juarez
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Suhjung Janet Lee
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA
| | - Rebecca Hendrickson
- VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Kathleen Pagulayan
- VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Larry S Zweifel
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, USA.,Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - Murray A Raskind
- VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Paul E M Phillips
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, USA.,Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - Elaine R Peskind
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - David G Cook
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, WA, USA.,Department of Pharmacology, University of Washington, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
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16
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Perez Garcia G, De Gasperi R, Gama Sosa MA, Perez GM, Otero-Pagan A, Pryor D, Abutarboush R, Kawoos U, Hof PR, Dickstein DL, Cook DG, Gandy S, Ahlers ST, Elder GA. Laterality and region-specific tau phosphorylation correlate with PTSD-related behavioral traits in rats exposed to repetitive low-level blast. Acta Neuropathol Commun 2021; 9:33. [PMID: 33648608 PMCID: PMC7923605 DOI: 10.1186/s40478-021-01128-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 02/07/2021] [Indexed: 12/14/2022] Open
Abstract
Military veterans who experience blast-related traumatic brain injuries often suffer from chronic cognitive and neurobehavioral syndromes. Reports of abnormal tau processing following blast injury have raised concerns that some cases may have a neurodegenerative basis. Rats exposed to repetitive low-level blast exhibit chronic neurobehavioral traits and accumulate tau phosphorylated at threonine 181 (Thr181). Using data previously reported in separate studies we tested the hypothesis that region-specific patterns of Thr181 phosphorylation correlate with behavioral measures also previously determined and reported in the same animals. Elevated p-tau Thr181 in anterior neocortical regions and right hippocampus correlated with anxiety as well as fear learning and novel object localization. There were no correlations with levels in amygdala or posterior neocortical regions. Particularly striking were asymmetrical effects on the right and left hippocampus. No systematic variation in head orientation toward the blast wave seems to explain the laterality. Levels did not correlate with behavioral measures of hyperarousal. Results were specific to Thr181 in that no correlations were observed for three other phospho-acceptor sites (threonine 231, serine 396, and serine 404). No consistent correlations were linked with total tau. These correlations are significant in suggesting that p-tau accumulation in anterior neocortical regions and the hippocampus may lead to disinhibited amygdala function without p-tau elevation in the amygdala itself. They also suggest an association linking blast injury with tauopathy, which has implications for understanding the relationship of chronic blast-related neurobehavioral syndromes in humans to neurodegenerative diseases.
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17
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Perez Garcia G, Perez GM, De Gasperi R, Gama Sosa MA, Otero-Pagan A, Pryor D, Abutarboush R, Kawoos U, Hof PR, Cook DG, Gandy S, Ahlers ST, Elder GA. Progressive Cognitive and Post-Traumatic Stress Disorder-Related Behavioral Traits in Rats Exposed to Repetitive Low-Level Blast. J Neurotrauma 2021; 38:2030-2045. [PMID: 33115338 DOI: 10.1089/neu.2020.7398] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Many military veterans who experienced blast-related traumatic brain injuries (TBI) in the conflicts in Iraq and Afghanistan currently have chronic cognitive and mental health problems including post-traumatic stress disorder (PTSD). Besides static symptoms, new symptoms may emerge or existing symptoms may worsen. TBI is also a risk factor for later development of neurodegenerative diseases. In rats exposed to repetitive low-level blast overpressure (BOP), robust and enduring cognitive and PTSD-related behavioral traits develop that are present for at least one year after blast exposure. Here we determined the time-course of the appearance of these traits by testing rats in the immediate post-blast period. Three cohorts of rats examined within the first eight weeks exhibited no behavioral phenotype or, in one cohort, features of anxiety. None showed the altered cued fear responses or impaired novel object recognition characteristic of the fully developed phenotype. Two cohorts retested 36 to 42 weeks after blast exposure exhibited the expanded behavioral phenotype including anxiety as well as altered cued fear learning and impaired novel object recognition. Combined with previous work, the chronic behavioral phenotype has been observed in six cohorts of blast-exposed rats studied at 3-4 months or longer after blast injury, and the three cohorts studied here document the progressive nature of the cognitive/behavioral phenotype. These studies suggest the existence of a latent, delayed emerging and progressive blast-induced cognitive and behavioral phenotype. The delayed onset has implications for the evolution of post-blast neurobehavioral syndromes in military veterans and its modeling in experimental animals.
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Affiliation(s)
- Georgina Perez Garcia
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA.,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gissel M Perez
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rita De Gasperi
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA.,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Miguel A Gama Sosa
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,General Medical Research Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Alena Otero-Pagan
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Dylan Pryor
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
| | - Rania Abutarboush
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Usmah Kawoos
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, USA
| | - Patrick R Hof
- Department of Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Geriatrics and Palliative Care, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - David G Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Sam Gandy
- Research and Development Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA.,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Barbara and Maurice A. Deane Center for Wellness and Cognitive Health, and the Mount Sinai NFL Neurological Care Center, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Stephen T Ahlers
- Department of Neurotrauma, Naval Medical Research Center, Silver Spring, Maryland, USA
| | - Gregory A Elder
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Mount Sinai Alzheimer's Disease Research Center and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Neurology Service, James J. Peters Department of Veterans Affairs Medical Center, Bronx, New York, USA
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18
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Schindler AG, Terry GE, Wolden-Hanson T, Cline M, Park M, Lee J, Yagi M, Meabon JS, Peskind ER, Raskind MM, Phillips PEM, Cook DG. Repetitive Blast Promotes Chronic Aversion to Neutral Cues Encountered in the Peri-Blast Environment. J Neurotrauma 2020; 38:940-948. [PMID: 33138684 DOI: 10.1089/neu.2020.7061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Repetitive mild traumatic brain injury (mTBI) has been called the "signature injury" of military service members in the Iraq and Afghanistan wars and is highly comorbid with post-traumatic stress disorder (PTSD). Correct attribution of adverse blast-induced mTBI and/or PTSD remains challenging. Pre-clinical research using animal models can provide important insight into the mechanisms by which blast produces injury and dysfunction-but only to the degree by which such models reflect the human experience. Avoidance of trauma reminders is a hallmark of PTSD. Here, we sought to understand whether a mouse model of blast reproduces this phenomenon, in addition to blast-induced physical injuries. Drawing on well-established work from the chronic stress and Pavlovian conditioning literature, we hypothesized that even while one is anesthetized during blast exposure, environmental cues encountered in the peri-blast environment could be conditioned to evoke aversion/dysphoria and re-experiencing of traumatic stress. Using a pneumatic shock tube that recapitulates battlefield-relevant open-field blast forces, we provide direct evidence that stress is inherent to repetitive blast exposure, resulting in chronic aversive/dysphoric-like responses to previous blast-paired cues. The results in this report demonstrate that, although both single and repetitive blast exposures produce acute stress responses (weight loss, corticosterone increase), only repetitive blast exposure also results in co-occurring aversive/dysphoric-like stress responses. These results extend appreciation of the highly complex nature of repetitive blast exposure; and lend further support for the potential translational relevance of animal modeling approaches currently used by multiple laboratories aimed at elucidating the mechanisms (both molecular and behavioral) of repetitive blast exposure.
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Affiliation(s)
- Abigail G Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, Washington, USA.,VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Garth E Terry
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Tami Wolden-Hanson
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Marcella Cline
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Michael Park
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA
| | - Janet Lee
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Mayumi Yagi
- VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - James S Meabon
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Elaine R Peskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Murray M Raskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,VA Northwest Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA
| | - Paul E M Phillips
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington, USA.,Graduate Program in Neuroscience, University of Washington, Seattle, Washington, USA.,Department of Pharmacology, University of Washington, Seattle, Washington, USA
| | - David G Cook
- Graduate Program in Neuroscience, University of Washington, Seattle, Washington, USA.,VA Northwest Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, Washington, USA.,Department of Pharmacology, University of Washington, Seattle, Washington, USA.,Department of Medicine, University of Washington, Seattle, Washington, USA
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19
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Meabon JS, Cook DG, Yagi M, Terry GE, Cross DJ, Muzi M, Pagulayan KF, Logsdon AF, Schindler AG, Ghai V, Wang K, Fallen S, Zhou Y, Kim TK, Lee I, Banks WA, Carlson ES, Mayer C, Hendrickson RC, Raskind MA, Marshall DA, Perl DP, Keene CD, Peskind ER. Chronic elevation of plasma vascular endothelial growth factor-A (VEGF-A) is associated with a history of blast exposure. J Neurol Sci 2020; 417:117049. [PMID: 32758764 PMCID: PMC7492467 DOI: 10.1016/j.jns.2020.117049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 06/23/2020] [Accepted: 07/15/2020] [Indexed: 02/02/2023]
Abstract
Mounting evidence points to the significance of neurovascular-related dysfunction in veterans with blast-related mTBI, which is also associated with reduced [18F]-fluorodeoxyglucose (FDG) uptake. The goal of this study was to determine whether plasma VEGF-A is altered in veterans with blast-related mTBI and address whether VEGF-A levels correlate with FDG uptake in the cerebellum, a brain region that is vulnerable to blast-related injury 72 veterans with blast-related mTBI (mTBI) and 24 deployed control (DC) veterans with no lifetime history of TBI were studied. Plasma VEGF-A was significantly elevated in mTBIs compared to DCs. Plasma VEGF-A levels in mTBIs were significantly negatively correlated with FDG uptake in cerebellum. In addition, performance on a Stroop color/word interference task was inversely correlated with plasma VEGF-A levels in blast mTBI veterans. Finally, we observed aberrant perivascular VEGF-A immunoreactivity in postmortem cerebellar tissue and not cortical or hippocampal tissues from blast mTBI veterans. These findings add to the limited number of plasma proteins that are chronically elevated in veterans with a history of blast exposure associated with mTBI. It is likely the elevated VEGF-A levels are from peripheral sources. Nonetheless, increasing plasma VEGF-A concentrations correlated with chronically decreased cerebellar glucose metabolism and poorer performance on tasks involving cognitive inhibition and set shifting. These results strengthen an emerging view that cognitive complaints and functional brain deficits caused by blast exposure are associated with chronic blood-brain barrier injury and prolonged recovery in affected regions.
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Affiliation(s)
- James S Meabon
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - David G Cook
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA, USA; Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - Mayumi Yagi
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
| | - Garth E Terry
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA; Department of Radiology, University of Washington, Seattle, WA, USA
| | - Donna J Cross
- Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Mark Muzi
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Kathleen F Pagulayan
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Aric F Logsdon
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA, USA
| | - Abigail G Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA; Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
| | - Vikas Ghai
- Institute for Systems Biology, Seattle, WA, USA
| | - Kai Wang
- Institute for Systems Biology, Seattle, WA, USA
| | | | - Yong Zhou
- Institute for Systems Biology, Seattle, WA, USA
| | | | - Inyoul Lee
- Institute for Systems Biology, Seattle, WA, USA
| | - William A Banks
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Department of Medicine, Division of Gerontology and Geriatric Medicine, University of Washington, Seattle, WA, USA
| | - Erik S Carlson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA; Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
| | - Cynthia Mayer
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA
| | - Rebecca C Hendrickson
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Murray A Raskind
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | | | - Daniel P Perl
- Department of Pathology, Center for Neuroscience and Regenerative Medicine, School of Medicine, Uniformed Services University, Bethesda, MD, USA
| | - C Dirk Keene
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - Elaine R Peskind
- Veterans Affairs (VA) Northwest Mental Illness, Research, Education, and Clinical Center (MIRECC), Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA.
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20
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Ghai V, Fallen S, Baxter D, Scherler K, Kim TK, Zhou Y, Meabon JS, Logsdon AF, Banks WA, Schindler AG, Cook DG, Peskind ER, Lee I, Wang K. Alterations in Plasma microRNA and Protein Levels in War Veterans with Chronic Mild Traumatic Brain Injury. J Neurotrauma 2020; 37:1418-1430. [PMID: 32024417 PMCID: PMC7249467 DOI: 10.1089/neu.2019.6826] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Blast-related mild traumatic brain injury (mTBI) is considered the "signature" injury of the wars in Iraq and Afghanistan. Identifying biomarkers that could aid in diagnosis and assessment of chronic mTBI are urgently needed, as little progress has been made toward identifying blood-based biomarkers of repetitive mTBI in the chronic state. Addressing this knowledge gap is especially important in the population of military veterans who are receiving assessment and care often years after their last exposure. Circulating microRNAs (miRNAs), especially those encapsulated in extracellular vesicles (EVs), have gained interest as a source of biomarkers for neurological conditions. To identify biomarkers for chronic mTBI, we used next generation sequencing (NGS) to analyze miRNAs in plasma and plasma-derived EVs from 27 Iraq and Afghanistan war veterans with blast-related chronic mTBI, 11 deployed veteran non-TBI controls, and 31 civilian controls. We identified 32 miRNAs in plasma and 45 miRNAs in EVs that significantly changed in the chronic mTBI cohort compared with control groups. These miRNAs were predominantly associated with pathways involved in neuronal function, vascular remodeling, blood-brain barrier integrity, and neuroinflammation. In addition, the plasma proteome was analyzed and showed that the concentrations of C-reactive protein (CRP) and membrane metalloendopeptidase (MME) were elevated in chronic mTBI samples. These plasma miRNAs and proteins could potentially be used as biomarkers and provide insights into the molecular processes associated with the long-term health outcomes associated with blast-related chronic mTBI.
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Affiliation(s)
- Vikas Ghai
- Institute for Systems Biology, Seattle, Washington, USA
| | | | - David Baxter
- Institute for Systems Biology, Seattle, Washington, USA
| | | | - Taek-Kyun Kim
- Institute for Systems Biology, Seattle, Washington, USA
| | - Yong Zhou
- Institute for Systems Biology, Seattle, Washington, USA
| | - James S. Meabon
- Veterans Affairs Northwest Network Mental Illness, Research, Education, and Clinical Center, and Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
| | - Aric F. Logsdon
- Geriatric Research, Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA.,Division of Gerontology and Geriatric Medicine, Department of Medicine, and University of Washington School of Medicine, Seattle, Washington, USA
| | - William A. Banks
- Geriatric Research, Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA.,Division of Gerontology and Geriatric Medicine, Department of Medicine, and University of Washington School of Medicine, Seattle, Washington, USA
| | - Abigail G. Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA.,Geriatric Research, Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA
| | - David G. Cook
- Geriatric Research, Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA.,Division of Gerontology and Geriatric Medicine, Department of Medicine, and University of Washington School of Medicine, Seattle, Washington, USA.,Department of Pharmacology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Elaine R. Peskind
- Veterans Affairs Northwest Network Mental Illness, Research, Education, and Clinical Center, and Education, and Clinical Center, VA Puget Sound Health Care System (VAPSHCS), Seattle, Washington, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
| | - Inyoul Lee
- Institute for Systems Biology, Seattle, Washington, USA
| | - Kai Wang
- Institute for Systems Biology, Seattle, Washington, USA.,Address correspondence to: Kai Wang, PhD, Hood-Price Lab, Institute for Systems Biology, 401 Terry Avenue North, Seattle, WA 98109-5263, USA
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21
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Logsdon AF, Schindler AG, Meabon JS, Yagi M, Herbert MJ, Banks WA, Raskind MA, Marshall DA, Keene CD, Perl DP, Peskind ER, Cook DG. Nitric oxide synthase mediates cerebellar dysfunction in mice exposed to repetitive blast-induced mild traumatic brain injury. Sci Rep 2020; 10:9420. [PMID: 32523011 PMCID: PMC7287110 DOI: 10.1038/s41598-020-66113-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 03/16/2020] [Indexed: 02/02/2023] Open
Abstract
We investigated the role of nitric oxide synthase (NOS) in mediating blood-brain barrier (BBB) disruption and peripheral immune cell infiltration in the cerebellum following blast exposure. Repetitive, but not single blast exposure, induced delayed-onset BBB disruption (72 hours post-blast) in cerebellum. The NOS inhibitor N(G)-nitro-L-arginine methyl ester (L-NAME) administered after blast blocked BBB disruption and prevented CD4+ T-cell infiltration into cerebellum. L-NAME also blocked blast-induced increases in intercellular adhesion molecule-1 (ICAM-1), a molecule that plays a critical role in regulating blood-to-brain immune cell trafficking. Blocking NOS-mediated BBB dysfunction during this acute/subacute post-blast interval (24-71 hours after the last blast) also prevented sensorimotor impairment on a rotarod task 30 days later, long after L-NAME cleared the body. In postmortem brains from Veterans/military Servicemembers with blast-related TBI, we found marked Purkinje cell dendritic arbor structural abnormalities, which were comparable to neuropathologic findings in the blast-exposed mice. Taken collectively, these results indicate that blast provokes delayed-onset of NOS-dependent pathogenic cascades that can later emerge as behavioral dysfunction. These results also further implicate the cerebellum as a brain region vulnerable to blast-induced mTBI.
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Affiliation(s)
- Aric F. Logsdon
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - Abigail G. Schindler
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - James S. Meabon
- 0000 0004 0420 6540grid.413919.7VA Northwest Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - Mayumi Yagi
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA
| | - Melanie J. Herbert
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA
| | - William A. Banks
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - Murray A. Raskind
- 0000 0004 0420 6540grid.413919.7VA Northwest Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - Desiree A. Marshall
- 0000000122986657grid.34477.33Department of Pathology, University of Washington, Seattle, WA 98195 USA
| | - C. Dirk Keene
- 0000000122986657grid.34477.33Department of Pathology, University of Washington, Seattle, WA 98195 USA
| | - Daniel P. Perl
- 0000 0001 0421 5525grid.265436.0Department of Pathology, Center for Neuroscience and Regenerative Medicine, School of Medicine, Uniformed Services University, Bethesda, MD 20814 USA
| | - Elaine R. Peskind
- 0000 0004 0420 6540grid.413919.7VA Northwest Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA 98195 USA
| | - David G. Cook
- 0000 0004 0420 6540grid.413919.7Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA 98108 USA ,0000000122986657grid.34477.33Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195 USA
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22
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Cross DJ, Meabon JS, Cline MM, Richards TL, Stump AJ, Cross CG, Minoshima S, Banks WA, Cook DG. Paclitaxel Reduces Brain Injury from Repeated Head Trauma in Mice. J Alzheimers Dis 2020; 67:859-874. [PMID: 30664506 DOI: 10.3233/jad-180871] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Repetitive mild traumatic brain injury (rmTBI) is known to disturb axonal integrity and may play an important role in the pathogenic cascades leading to neurodegeneration. One critical approach to reduce the future onset of neurodegeneration is to intervene in this process at an early stage following a brain injury. Previously we showed that direct application of the microtubule-stabilizing drug, paclitaxel, on the brain following controlled cortical impact improved motor function and reduced lesion size. Herein, we extended these findings to a model of mild brain injury induced by repeated closed-skull impacts. Paclitaxel was administered intranasally to circumvent its poor transport across the blood-brain barrier. Mice received five mild closed-skull impacts (one per day for five days). Intranasal paclitaxel was administered once only, immediately after the first impact. We found that paclitaxel prevented injury-induced deficits in a spatial memory task in a water tread maze. In vivo magnetic resonance imaging (MRI) and positron emission tomography with 18F-flurodeoxyglucose (FDG-PET) revealed that paclitaxel prevented structural injury and hypometabolism. On MRI, apparent, injury-induced microbleeds were observed in 100% of vehicle-treated rmTBI mice, but not in paclitaxel-treated subjects. FDG-PET revealed a 42% increase in whole brain glucose metabolism in paclitaxel-treated mice as compared to vehicle-treated rmTBI. Immunohistochemistry found reduced evidence of axonal injury and synaptic loss. Our results indicate that intranasal paclitaxel administration imparts neuroprotection against brain injury and cognitive impairment in mice. The results from this study support the idea that microtubule-stabilization strategies hold therapeutic promise in mitigating traumatic brain injury.
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Affiliation(s)
- Donna J Cross
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - James S Meabon
- The Mental Illness Research Education and Clinical Center (MIRECC), and VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Psychiatry, University of Washington, Seattle, WA, USA
| | - Marcella M Cline
- Geriatric Research Education and Clinical Center (GRECC) and VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Molecular and Cellular Biology, University of Washington, Seattle, WA, USA
| | - Todd L Richards
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Amanda J Stump
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - Chloe G Cross
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - Satoshi Minoshima
- Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, USA
| | - William A Banks
- Geriatric Research Education and Clinical Center (GRECC) and VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Medicine, University of Washington, Seattle, WA, USA
| | - David G Cook
- Geriatric Research Education and Clinical Center (GRECC) and VA Puget Sound Health Care System, Seattle, WA, USA.,Department of Pharmacology, University of Washington, Seattle, WA, USA
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23
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Chen DH, Latimer C, Yagi M, Ndugga-Kabuye MK, Heigham E, Jayadev S, Meabon JS, Gomez CM, Keene CD, Cook DG, Raskind WH, Bird TD. Heterozygous STUB1 missense variants cause ataxia, cognitive decline, and STUB1 mislocalization. Neurol Genet 2020; 6:1-13. [PMID: 32211513 PMCID: PMC7073456 DOI: 10.1212/nxg.0000000000000397] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To identify the genetic cause of autosomal dominant ataxia complicated by behavioral abnormalities, cognitive decline, and autism in 2 families and to characterize brain neuropathologic signatures of dominant STUB1-related ataxia and investigate the effects of pathogenic variants on STUB1 localization. METHODS Clinical and research-based exome sequencing was used to identify the causative variants for autosomal dominant ataxia in 2 families. Gross and microscopic neuropathologic evaluations were performed on the brains of 4 affected individuals in these families. RESULTS Mutations in STUB1 have been primarily associated with childhood-onset autosomal recessive ataxia, but here we report heterozygous missense variants in STUB1 (p.Ile53Thr and p.The37Leu) confirming the recent reports of autosomal dominant inheritance. Cerebellar atrophy on imaging and cognitive deficits often preceded ataxia. Unique neuropathologic examination of the 4 brains showed the marked loss of Purkinje cells (PCs) without microscopic evidence of significant pathology outside the cerebellum. The normal pattern of polarized somatodendritic STUB1 protein expression in PCs was lost, resulting in aberrant STUB1 localization in the distal PC dendritic arbors. CONCLUSIONS This study confirms a dominant inheritance pattern in STUB1-ataxia in addition to a recessive one and documents its association with cognitive and behavioral disability, including autism. In the most extensive analysis of cerebellar pathology in this disease, we demonstrate disruption of STUB1 protein in PCs as part of the underlying pathogenesis.
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Affiliation(s)
- Dong-Hui Chen
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Caitlin Latimer
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Mayumi Yagi
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Mesaki Kenneth Ndugga-Kabuye
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Elyana Heigham
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Suman Jayadev
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - James S Meabon
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Christopher M Gomez
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - C Dirk Keene
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - David G Cook
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Wendy H Raskind
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
| | - Thomas D Bird
- Department of Neurology (D.-H.C., E.H., S.J., T.D.B.), University of Washington, Seattle; Department of Pathology (C.L., C.D.K.), Neuropathology Division, University of Washington, Seattle; Geriatric Research, Education, and Clinical Center (GRECC) (M.Y., D.G.C., W.H.R., T.D.B.), VA Puget Sound Health Care System, Seattle, WA; Department of Medicine (M.K.N.-K., W.H.R., T.D.B.), Division of Medical Genetics, University of Washington, Seattle; Mental Illness Research, Education, and Clinical Center (MIRECC) (J.S.M., W.H.R.), VA Puget Sound Health Care System, Seattle, WA; Department of Psychiatry and Behavioral Sciences (J.S.M., W.H.R.), University of Washington, Seattle; Department of Neurology (C.M.G.), University of Chicago, IL; Department of Medicine (D.G.C.), Division of Gerontology and Geriatric Medicine, University of Washington, Seattle; and Department of Pharmacology (D.G.C.), University of Washington, Seattle
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Logsdon AF, Meabon JS, Cline MM, Bullock KM, Raskind MA, Peskind ER, Banks WA, Cook DG. Blast exposure elicits blood-brain barrier disruption and repair mediated by tight junction integrity and nitric oxide dependent processes. Sci Rep 2018; 8:11344. [PMID: 30054495 PMCID: PMC6063850 DOI: 10.1038/s41598-018-29341-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 06/25/2018] [Indexed: 12/14/2022] Open
Abstract
Mild blast-induced traumatic brain injury (TBI) is associated with blood-brain barrier (BBB) disruption. However, the mechanisms whereby blast disrupts BBB integrity are not well understood. To address this issue BBB permeability to peripherally injected 14C-sucrose and 99mTc-albumin was quantified in ten brain regions at time points ranging from 0.25 to 72 hours. In mice, repetitive (2X) blast provoked BBB permeability to 14C-sucrose that persisted in specific brain regions from 0.25 to 72 hours. However, 99mTc-albumin revealed biphasic BBB disruption (open-closed-open) over the same interval, which was most pronounced in frontal cortex and hippocampus. This indicates that blast initiates interacting BBB disruption and reparative processes in specific brain regions. Further investigation of delayed (72 hour) BBB disruption revealed that claudin-5 (CLD5) expression was disrupted specifically in the hippocampus, but not in dorsal striatum, a brain region that showed no blast-induced BBB permeability to sucrose or albumin. In addition, we found that delayed BBB permeability and disrupted CLD5 expression were blocked by the nitric oxide synthase inhibitor N(G)-nitro-L-arginine methyl ester (L-NAME). These data argue that latent nitric oxide-dependent signaling pathways initiate processes that result in delayed BBB disruption, which are manifested in a brain-region specific manner.
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Affiliation(s)
- Aric F Logsdon
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - James S Meabon
- Veterans Affairs Northwest Network, Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Department of Psychiatry and Behavioral Science, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - Marcella M Cline
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Department of Molecular and Cellular Biology, University of Washington, Seattle, WA, 98195, USA
| | - Kristin M Bullock
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA
| | - Murray A Raskind
- Veterans Affairs Northwest Network, Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Department of Psychiatry and Behavioral Science, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - Elaine R Peskind
- Veterans Affairs Northwest Network, Mental Illness Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Department of Psychiatry and Behavioral Science, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - William A Banks
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA.,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, 98195, USA
| | - David G Cook
- Geriatric Research Education and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, 98108, USA. .,Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, 98195, USA.
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Rau HK, Hendrickson RC, Roggenkamp HC, Peterson S, Parmenter B, Cook DG, Peskind E, Pagulayan KF. Fatigue – but not mTBI history, PTSD, or sleep quality – directly contributes to reduced prospective memory performance in Iraq and Afghanistan era Veterans. Clin Neuropsychol 2017; 32:1319-1336. [DOI: 10.1080/13854046.2017.1381277] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Holly K. Rau
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Rebecca C. Hendrickson
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - Hannah C. Roggenkamp
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - Sarah Peterson
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Brett Parmenter
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - David G. Cook
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA, USA
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
| | - Elaine Peskind
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - Kathleen F. Pagulayan
- Veterans Affairs (VA) Northwest Network (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Health Care System, Seattle, WA, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
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Schindler AG, Meabon JS, Pagulayan KF, Hendrickson RC, Meeker KD, Cline M, Li G, Sikkema C, Wilkinson CW, Perl DP, Raskind MR, Peskind ER, Clark JJ, Cook DG. Blast-related disinhibition and risk seeking in mice and combat Veterans: Potential role for dysfunctional phasic dopamine release. Neurobiol Dis 2017; 106:23-34. [PMID: 28619545 DOI: 10.1016/j.nbd.2017.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/22/2017] [Accepted: 06/09/2017] [Indexed: 01/23/2023] Open
Abstract
Mild traumatic brain injury (mTBI) caused by exposure to high explosives has been called the "signature injury" of the wars in Iraq and Afghanistan. There is a wide array of chronic neurological and behavioral symptoms associated with blast-induced mTBI. However, the underlying mechanisms are not well understood. Here we used a battlefield-relevant mouse model of blast-induced mTBI and in vivo fast-scan cyclic voltammetry (FSCV) to investigate whether the mesolimbic dopamine system contributes to the mechanisms underlying blast-induced behavioral dysfunction. In mice, blast exposure increased novelty seeking, a behavior closely associated with disinhibition and risk for subsequent maladaptive behaviors. In keeping with this, we found that veterans with blast-related mTBI reported greater disinhibition and risk taking on the Frontal Systems Behavior Scale (FrSBe). In addition, in mice we report that blast exposure causes potentiation of evoked phasic dopamine release in the nucleus accumbens. Taken together these findings suggest that blast-induced changes in the dopaminergic system may mediate aspects of the complex array of behavioral dysfunctions reported in blast-exposed veterans.
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Affiliation(s)
- A G Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - J S Meabon
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - K F Pagulayan
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - R C Hendrickson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - K D Meeker
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - M Cline
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - G Li
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - C Sikkema
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - C W Wilkinson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - D P Perl
- Department of Pathology, Center for Neuroscience and Regenerative Medicine, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - M R Raskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - E R Peskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - J J Clark
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA
| | - D G Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Pharmacology, University of Washington, Seattle, WA 98195, USA.
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Cline MM, Yumul JC, Hysa L, Murra D, Garwin GG, Cook DG, Ladiges WC, Minoshima S, Cross DJ. Novel application of a Radial Water Tread maze can distinguish cognitive deficits in mice with traumatic brain injury. Brain Res 2016; 1657:140-147. [PMID: 27923635 DOI: 10.1016/j.brainres.2016.11.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/21/2016] [Accepted: 11/22/2016] [Indexed: 01/02/2023]
Abstract
INTRODUCTION The use of forced-swim, rat-validated cognition tests in mouse models of traumatic brain injury (TBI) raises methodological concerns; such models are vulnerable to a number of confounding factors including impaired motor function and stress-induced non-compliance (failure to swim). This study evaluated the ability of a Radial Water Tread (RWT) maze, designed specifically for mice, that requires no swimming to distinguish mice with controlled cortical impact (CCI) induced TBI and Sham controls. METHODS Ten-week-old, male C57BL6/J mice were randomly assigned to receive either Sham (n=14) or CCI surgeries (n=15). Mice were tested for sensorimotor deficits via Gridwalk test and Noldus CatWalk gait analysis at 1 and 32days post-injury. Mice received RWT testing at either 11days (early time point) or 35days (late time point) post-injury. RESULTS Compared to Sham-treated animals, CCI-induced TBI resulted in significant impairment in RWT maze performance. Additionally, CCI injured mice displayed significant deficits on the Gridwalk test at both 1day and 32days post-injury, and impairment in the CatWalk task at 1day, but not 32days, compared to Shams. CONCLUSIONS The Radial Water Tread maze capitalizes on the natural tendency of mice to avoid open areas in favor of hugging the edges of an apparatus (thigmotaxis), and replaces a forced-swim model with water shallow enough that the animal is not required to swim, but aversive enough to motivate escape. Our findings indicate the RWT task is a sensitive species-appropriate behavioral test for evaluating spatial memory impairment in a mouse model of TBI.
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Affiliation(s)
- Marcella M Cline
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Josh C Yumul
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Lisa Hysa
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Dalia Murra
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Gregory G Garwin
- Department of Radiology, University of Washington, Seattle, WA, USA; Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - David G Cook
- Department of Pharmacology, University of Washington, Seattle, WA, USA; Geriatric Research Education and Clinical Center (GRECC), VA Puget Sound Health Care System, Seattle, WA, USA
| | - Warren C Ladiges
- Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Satoshi Minoshima
- Department of Radiology, University of Washington, Seattle, WA, USA; Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Donna J Cross
- Department of Radiology, University of Washington, Seattle, WA, USA; Department of Radiology, University of Utah, Salt Lake City, UT, USA.
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Hosking FJ, Harris T, DeWilde S, Beighton C, Shah SM, Cook DG, Carey IM. OP11 Do health checks for adults with intellectual disability reduce emergency hospital admissions? Evaluation of a natural experiment. Br J Soc Med 2016. [DOI: 10.1136/jech-2016-208064.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hosking FJ, Carey IM, Harris T, De Wilde S, Beighton C, Cook DG, Shah SM. OP50 Disparities in Mortality and Deaths Amenable to Healthcare Intervention in Adults with Intellectual Disability. Br J Soc Med 2016. [DOI: 10.1136/jech-2016-208064.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Limb E, Ahmad S, Cook DG, Kerry SM, Ekelund U, Whincup PH, Furness C, Harris T. P134 Does physical activity based on self-completed questionnaire assessment give the same answers as objective accelerometry in physical activity trials? Results from the PACE-UP trial. Br J Soc Med 2016. [DOI: 10.1136/jech-2016-208064.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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31
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Cook DG. Book Review: Contemporary Treatments in Neurology. Neurorehabil Neural Repair 2016. [DOI: 10.1177/154596802401105234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- David G. Cook
- Department of Neurology, Pennsylvania Hospital, 800 Spruce Street, Philadelphia, PA 19107
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Carey IM, Anderson HR, Atkinson RW, Beevers S, Cook DG, Dajnak D, Gulliver J, Kelly FJ. Traffic pollution and the incidence of cardiorespiratory outcomes in an adult cohort in London. Occup Environ Med 2016; 73:849-856. [PMID: 27343184 PMCID: PMC5241502 DOI: 10.1136/oemed-2015-103531] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 05/13/2016] [Accepted: 05/25/2016] [Indexed: 01/09/2023]
Abstract
OBJECTIVES The epidemiological evidence for adverse health effects of long-term exposure to air and noise pollution from traffic is not coherent. Further, the relative roles of background versus near traffic pollution concentrations in this process are unclear. We investigated relationships between modelled concentrations of air and noise pollution from traffic and incident cardiorespiratory disease in London. METHODS Among 211 016 adults aged 40-79 years registered in 75 Greater London practices between 2005 and 2011, the first diagnosis for a range of cardiovascular and respiratory outcomes were identified from primary care and hospital records. Annual baseline concentrations for nitrogen oxide (NOx), particulate matter with a median aerodynamic diameter <2.5 μm (PM2.5) attributable to exhaust and non-exhaust sources, traffic intensity and noise were estimated at 20 m2 resolution from dispersion models, linked to clinical data via residential postcode. HRs were adjusted for confounders including smoking and area deprivation. RESULTS The largest observed associations were between traffic-related air pollution and heart failure (HR=1.10 for 20 μg/m3 change in NOx, 95% CI 1.01 to 1.21). However, no other outcomes were consistently associated with any of the pollution indicators, including noise. The greater variations in modelled air pollution from traffic between practices, versus within, hampered meaningful fine spatial scale analyses. CONCLUSIONS The associations observed with heart failure may suggest exacerbatory effects rather than underlying chronic disease. However, the overall failure to observe wider associations with traffic pollution may reflect that exposure estimates based on residence inadequately represent the relevant pattern of personal exposure, and future studies must address this issue.
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Affiliation(s)
- I M Carey
- Population Health Research Institute, St George's University of London, London, UK
| | - H R Anderson
- MRC-PHE Centre for Environment and Health, King's College London, London, UK
| | - R W Atkinson
- Population Health Research Institute, St George's University of London, London, UK
| | - S Beevers
- MRC-PHE Centre for Environment and Health, King's College London, London, UK
| | - D G Cook
- Population Health Research Institute, St George's University of London, London, UK
| | - D Dajnak
- MRC-PHE Centre for Environment and Health, King's College London, London, UK
| | - J Gulliver
- UK Small Area Health Statistics Unit, MRC-PHE Centre for Environment and Health, Imperial College, London, UK
| | - F J Kelly
- MRC-PHE Centre for Environment and Health, King's College London, London, UK
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Nightingale CM, Donin AS, Kerry SR, Owen CG, Rudnicka AR, Brage S, Westgate KL, Ekelund U, Cook DG, Whincup PH. Cross-sectional study of ethnic differences in physical fitness among children of South Asian, black African-Caribbean and white European origin: the Child Heart and Health Study in England (CHASE). BMJ Open 2016; 6:e011131. [PMID: 27324713 PMCID: PMC4916632 DOI: 10.1136/bmjopen-2016-011131] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE Little is known about levels of physical fitness in children from different ethnic groups in the UK. We therefore studied physical fitness in UK children (aged 9-10 years) of South Asian, black African-Caribbean and white European origin. DESIGN Cross-sectional study. SETTING Primary schools in the UK. PARTICIPANTS 1625 children (aged 9-10 years) of South Asian, black African-Caribbean and white European origin in the UK studied between 2006 and 2007. OUTCOME MEASURES A step test assessed submaximal physical fitness from which estimated VO2 max was derived. Ethnic differences in estimated VO2 max were estimated using multilevel linear regression allowing for clustering at school level and adjusting for age, sex and month as fixed effects. RESULTS The study response rate was 63%. In adjusted analyses, boys had higher levels of estimated VO2 max than girls (mean difference 3.06 mL O2/min/kg, 95% CI 2.66 to 3.47, p<0.0001). Levels of estimated VO2 max were lower in South Asians than those in white Europeans (mean difference -0.79 mL O2/min/kg, 95% CI -1.41 to -0.18, p=0.01); levels of estimated VO2 max in black African-Caribbeans were higher than those in white Europeans (mean difference 0.60 mL O2/min/kg, 95% CI 0.02 to 1.17, p=0.04); these patterns were similar in boys and girls. The lower estimated VO2 max in South Asians, compared to white Europeans, was consistent among Indian, Pakistani and Bangladeshi children and was attenuated by 78% after adjustment for objectively measured physical activity (average daily steps). CONCLUSIONS South Asian children have lower levels of physical fitness than white Europeans and black African-Caribbeans in the UK. This ethnic difference in physical fitness is at least partly explained by ethnic differences in physical activity.
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Affiliation(s)
- C M Nightingale
- Population Health Research Institute, St George's, University of London, London, UK
- Centre for Primary Care and Public Health, Queen Mary, University of London, London, UK
| | - A S Donin
- Population Health Research Institute, St George's, University of London, London, UK
| | - S R Kerry
- Population Health Research Institute, St George's, University of London, London, UK
| | - C G Owen
- Population Health Research Institute, St George's, University of London, London, UK
| | - A R Rudnicka
- Population Health Research Institute, St George's, University of London, London, UK
| | - S Brage
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK
| | - K L Westgate
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK
| | - U Ekelund
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge, UK
- Department of Sport Medicine, Norwegian School of Sport Sciences, Oslo, Norway
| | - D G Cook
- Population Health Research Institute, St George's, University of London, London, UK
| | - P H Whincup
- Population Health Research Institute, St George's, University of London, London, UK
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Donin AS, Dent JE, Nightingale CM, Sattar N, Owen CG, Rudnicka AR, Perkin MR, Stephen AM, Jebb SA, Cook DG, Whincup PH. Fruit, vegetable and vitamin C intakes and plasma vitamin C: cross-sectional associations with insulin resistance and glycaemia in 9-10 year-old children. Diabet Med 2016; 33:307-15. [PMID: 26498636 PMCID: PMC4832256 DOI: 10.1111/dme.13006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/19/2015] [Indexed: 12/11/2022]
Abstract
AIM To examine whether low circulating vitamin C concentrations and low fruit and vegetable intakes were associated with insulin resistance and other Type 2 diabetes risk markers in childhood. METHODS We conducted a cross-sectional, school-based study in 2025 UK children aged 9-10 years, predominantly of white European, South-Asian and black African origin. A 24-h dietary recall was used to assess fruit, vegetable and vitamin C intakes. Height, weight and fat mass were measured and a fasting blood sample collected to measure plasma vitamin C concentrations and Type 2 diabetes risk markers. RESULTS In analyses adjusting for confounding variables (including socio-economic status), a one interquartile range higher plasma vitamin C concentration (30.9 μmol/l) was associated with a 9.6% (95% CI 6.5, 12.6%) lower homeostatic model assessment of insulin resistance value, 0.8% (95% CI 0.4, 1.2%) lower fasting glucose, 4.5% (95% CI 3.2, 5.9%) lower urate and 2.2% (95% CI 0.9, 3.4%) higher HDL cholesterol. HbA1c concentration was 0.6% (95% CI 0.2, 1.0%) higher. Dietary fruit, vegetable and total vitamin C intakes were not associated with any Type 2 diabetes risk markers. Lower plasma vitamin C concentrations in South-Asian and black African-Caribbean children could partly explain their higher insulin resistance. CONCLUSIONS Lower plasma vitamin C concentrations are associated with insulin resistance and could partly explain ethnic differences in insulin resistance. Experimental studies are needed to establish whether increasing plasma vitamin C can help prevent Type 2 diabetes at an early stage.
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Affiliation(s)
- A S Donin
- Population Health Research Institute, St George's, University of London, London, UK
| | - J E Dent
- Population Health Research Institute, St George's, University of London, London, UK
| | - C M Nightingale
- Population Health Research Institute, St George's, University of London, London, UK
| | - N Sattar
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - C G Owen
- Population Health Research Institute, St George's, University of London, London, UK
| | - A R Rudnicka
- Population Health Research Institute, St George's, University of London, London, UK
| | - M R Perkin
- Population Health Research Institute, St George's, University of London, London, UK
| | - A M Stephen
- Medical Research Council Human Nutrition Research, Cambridge, UK
- Department of Nutritional Sciences, University of Surrey, Guildford, UK
| | - S A Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - D G Cook
- Population Health Research Institute, St George's, University of London, London, UK
| | - P H Whincup
- Population Health Research Institute, St George's, University of London, London, UK
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Meeker KD, Meabon JS, Cook DG. Partial Loss of the Glutamate Transporter GLT-1 Alters Brain Akt and Insulin Signaling in a Mouse Model of Alzheimer's Disease. J Alzheimers Dis 2016; 45:509-20. [PMID: 25589729 DOI: 10.3233/jad-142304] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The glutamate transporter GLT-1 (also called EAAT2 in humans) plays a critical role in regulating extracellular glutamate levels in the central nervous system (CNS). In Alzheimer's disease (AD), EAAT2 loss is associated with neuropathology and cognitive impairment. In keeping with this, we have reported that partial GLT-1 loss (GLT-1+/-) causes early-occurring cognitive deficits in mice harboring familial AD AβPPswe/PS1ΔE9 mutations. GLT-1 plays important roles in several molecular pathways that regulate brain metabolism, including Akt and insulin signaling in astrocytes. Significantly, AD pathogenesis also involves chronic Akt activation and reduced insulin signaling in the CNS. In this report we tested the hypothesis that GLT-1 heterozygosity (which reduces GLT-1 to levels that are comparable to losses in AD patients) in AβPPswe/PS1ΔE9 mice would induce sustained activation of Akt and disturb components of the CNS insulin signaling cascade. We found that partial GLT-1 loss chronically increased Akt activation (reflected by increased phosphorylation at serine 473), impaired insulin signaling (reflected by decreased IRβ phosphorylation of tyrosines 1150/1151 and increased IRS-1 phosphorylation at serines 632/635 - denoted as 636/639 in humans), and reduced insulin degrading enzyme (IDE) activity in brains of mice expressing familial AβPPswe/PS1ΔE9 AD mutations. GLT-1 loss also caused an apparent compensatory increase in IDE activity in the liver, an organ that has been shown to regulate peripheral amyloid-β levels and expresses GLT-1. Taken together, these findings demonstrate that partial GLT-1 loss can cause insulin/Akt signaling abnormalities that are in keeping with those observed in AD.
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Affiliation(s)
- Kole D Meeker
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA, USA Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System (VAPSHCS), Seattle, WA, USA
| | - James S Meabon
- Mental Illness Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System (VAPSHCS), Seattle, WA, USA Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA
| | - David G Cook
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA, USA Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System (VAPSHCS), Seattle, WA, USA Division of Gerontology, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
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Huber BR, Meabon JS, Hoffer ZS, Zhang J, Hoekstra JG, Pagulayan KF, McMillan PJ, Mayer CL, Banks WA, Kraemer BC, Raskind MA, McGavern DB, Peskind ER, Cook DG. Blast exposure causes dynamic microglial/macrophage responses and microdomains of brain microvessel dysfunction. Neuroscience 2016; 319:206-20. [PMID: 26777891 DOI: 10.1016/j.neuroscience.2016.01.022] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 12/11/2015] [Accepted: 01/11/2016] [Indexed: 12/14/2022]
Abstract
Exposure to blast overpressure (BOP) is associated with behavioral, cognitive, and neuroimaging abnormalities. We investigated the dynamic responses of cortical vasculature and its relation to microglia/macrophage activation in mice using intravital two-photon microscopy following mild blast exposure. We found that blast caused vascular dysfunction evidenced by microdomains of aberrant vascular permeability. Microglial/macrophage activation was specifically associated with these restricted microdomains, as evidenced by rapid microglial process retraction, increased ameboid morphology, and escape of blood-borne Q-dot tracers that were internalized in microglial/macrophage cell bodies and phagosome-like compartments. Microdomains of cortical vascular disruption and microglial/macrophage activation were also associated with aberrant tight junction morphology that was more prominent after repetitive (3×) blast exposure. Repetitive, but not single, BOPs also caused TNFα elevation two weeks post-blast. In addition, following a single BOP we found that aberrantly phosphorylated tau rapidly accumulated in perivascular domains, but cleared within four hours, suggesting it was removed from the perivascular area, degraded, and/or dephosphorylated. Taken together these findings argue that mild blast exposure causes an evolving CNS insult that is initiated by discrete disturbances of vascular function, thereby setting the stage for more protracted and more widespread neuroinflammatory responses.
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Affiliation(s)
- B R Huber
- VA Jamaica Plain, Department of Neurology, Boston University School of Medicine, Jamaica Plain, MA, USA
| | - J S Meabon
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - Z S Hoffer
- United States Army, Madigan Army Medical Center, Joint Base Lewis-McChord, WA, USA
| | - J Zhang
- Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - J G Hoekstra
- Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - K F Pagulayan
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - P J McMillan
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - C L Mayer
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - W A Banks
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, USA
| | - B C Kraemer
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, USA
| | - M A Raskind
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - D B McGavern
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - E R Peskind
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), VA Puget Sound Healthcare Systems, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
| | - D G Cook
- Geriatric Research, Education, and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA; Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, USA; Department of Pharmacology, University of Washington School of Medicine, Seattle, WA, USA.
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Meabon JS, Huber BR, Cross DJ, Richards TL, Minoshima S, Pagulayan KF, Li G, Meeker KD, Kraemer BC, Petrie EC, Raskind MA, Peskind ER, Cook DG. Repetitive blast exposure in mice and combat veterans causes persistent cerebellar dysfunction. Sci Transl Med 2016; 8:321ra6. [DOI: 10.1126/scitranslmed.aaa9585] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Banks WA, Gray AM, Erickson MA, Salameh TS, Damodarasamy M, Sheibani N, Meabon JS, Wing EE, Morofuji Y, Cook DG, Reed MJ. Lipopolysaccharide-induced blood-brain barrier disruption: roles of cyclooxygenase, oxidative stress, neuroinflammation, and elements of the neurovascular unit. J Neuroinflammation 2015; 12:223. [PMID: 26608623 PMCID: PMC4660627 DOI: 10.1186/s12974-015-0434-1] [Citation(s) in RCA: 360] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/14/2015] [Indexed: 01/31/2023] Open
Abstract
Background Disruption of the blood-brain barrier (BBB) occurs in many diseases and is often mediated by inflammatory and neuroimmune mechanisms. Inflammation is well established as a cause of BBB disruption, but many mechanistic questions remain. Methods We used lipopolysaccharide (LPS) to induce inflammation and BBB disruption in mice. BBB disruption was measured using 14C-sucrose and radioactively labeled albumin. Brain cytokine responses were measured using multiplex technology and dependence on cyclooxygenase (COX) and oxidative stress determined by treatments with indomethacin and N-acetylcysteine. Astrocyte and microglia/macrophage responses were measured using brain immunohistochemistry. In vitro studies used Transwell cultures of primary brain endothelial cells co- or tri-cultured with astrocytes and pericytes to measure effects of LPS on transendothelial electrical resistance (TEER), cellular distribution of tight junction proteins, and permeability to 14C-sucrose and radioactive albumin. Results In comparison to LPS-induced weight loss, the BBB was relatively resistant to LPS-induced disruption. Disruption occurred only with the highest dose of LPS and was most evident in the frontal cortex, thalamus, pons-medulla, and cerebellum with no disruption in the hypothalamus. The in vitro and in vivo patterns of LPS-induced disruption as measured with 14C-sucrose, radioactive albumin, and TEER suggested involvement of both paracellular and transcytotic pathways. Disruption as measured with albumin and 14C-sucrose, but not TEER, was blocked by indomethacin. N-acetylcysteine did not affect disruption. In vivo, the measures of neuroinflammation induced by LPS were mainly not reversed by indomethacin. In vitro, the effects on LPS and indomethacin were not altered when brain endothelial cells (BECs) were cultured with astrocytes or pericytes. Conclusions The BBB is relatively resistant to LPS-induced disruption with some brain regions more vulnerable than others. LPS-induced disruption appears is to be dependent on COX but not on oxidative stress. Based on in vivo and in vitro measures of neuroinflammation, it appears that astrocytes, microglia/macrophages, and pericytes play little role in the LPS-mediated disruption of the BBB.
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Affiliation(s)
- William A Banks
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA. .,Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA.
| | - Alicia M Gray
- University of Washington School of Medicine, Seattle, WA, USA.
| | - Michelle A Erickson
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA. .,Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA.
| | - Therese S Salameh
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA.
| | - Mamatha Damodarasamy
- Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA.
| | - Nader Sheibani
- Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
| | - James S Meabon
- Mental Health Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA.
| | - Emily E Wing
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA.
| | - Yoichi Morofuji
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA. .,Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA. .,Department of Neurosurgery, University of Nagasaki, Nagasaki, Japan.
| | - David G Cook
- Geriatric Research Education and Clinical Center-VA Puget Sound Health Care System, Seattle, WA, USA.
| | - May J Reed
- Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA.
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Donin AS, Nightingale CM, Rudnicka AS, Owen CG, Cook DG, Whincup PH. OP16 Frequency of takeaway meal consumption and risk markers for coronary heart disease, type 2 diabetes and obesity in 9–10 year-old children: cross-sectional study. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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40
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Furness CA, Howard EL, Harris T, Kerry SM, Victor CR, Ussher M, Whincup P, Shah S, Iliffe S, Ekelund U, Limb E, Fox-Rushby J, Cook DG. OP95 Evaluating implementation fidelity in the pace-up (pedometer and consultation evaluation-up) complex walking intervention. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Carey IM, Shah SM, DeWilde S, Harris T, Victor CR, Cook DG. OP33 Broken Hearts: The impact of partner bereavement on cardiovascular risk and disease management. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Donin AS, Dent JE, Sattar N, Owen CG, Rudnicka AR, Nightingale CM, Stephen AM, Cook DG, Whincup PH. OP19 Fruit, vegetable, vitamin C intakes and plasma vitamin C: associations with insulin resistance in UK primary school children. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Normansell RA, Holmes R, Victor CR, Cook DG, Kerry S, Iliffe S, Ussher M, Ekelund U, Fox-Rushby J, Whincup P, Harris TJ. OP23 Exploring the reasons for non-participation in physical activity interventions: PACE-UP trial qualitative findings. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Owen CG, Kapetanakis V, Rudnicka AR, Wathern AK, Lennon L, Papacosta O, Cook DG, Wannamethee SG, Whincup PH. OP31 Effect of adiposity in early and middle adult life on cardiovascular disease and diabetes in later life; findings from the British Regional Heart Study. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Morgan KE, Kerry SM, Harris T, Cook DG, Furness C, Shah SM, Carey IM, DeWilde S, Limb E. OP44 How representative are physical activity trial participants? – results from the PACE-UP primary care trial. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Nightingale CM, Rudnicka AR, Owen CG, Newton SL, Bales JL, McKay CM, Steer PJ, Lawlor DA, Sattar N, Cook DG, Whincup PH. OP80 Birth weight and emerging type 2 diabetes risk in UK children of South Asian, black African-Caribbean and white European origin – Child Heart and Health Study in England (CHASE). Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Atkinson RW, Carey IM, Kent AJ, van Staa TP, Anderson HR, Cook DG. Long-term exposure to outdoor air pollution and the incidence of chronic obstructive pulmonary disease in a national English cohort. Occup Environ Med 2014; 72:42-8. [PMID: 25146191 PMCID: PMC4283678 DOI: 10.1136/oemed-2014-102266] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Objectives The role of outdoor air pollution in the incidence of chronic obstructive pulmonary disease (COPD) remains unclear. We investigated this question using a large, nationally representative cohort based on primary care records linked to hospital admissions. Methods A cohort of 812 063 patients aged 40–89 years registered with 205 English general practices in 2002 without a COPD diagnosis was followed from 2003 to 2007. First COPD diagnoses recorded either by a general practitioner (GP) or on admission to hospital were identified. Annual average concentrations in 2002 for particulate matter with an aerodynamic diameter <10 µm (PM10) and <2.5 µm (PM2.5), nitrogen dioxide (NO2), ozone and sulfur dioxide (SO2) at 1 km2 resolution were estimated from emission-based dispersion models. Hazard ratios (HRs) per interquartile range change were estimated from Cox models adjusting for age, sex, smoking, body mass index and area-level deprivation. Results 16 034 participants (1.92%) received a COPD diagnosis from their GP and 2910 participants (0.35%) were admitted to hospital for COPD. After adjustment, HRs for GP recorded COPD and PM10, PM2.5 and NO2 were close to unity, positive for SO2 (HR=1.07 (95% CI 1.03 to 1.11) per 2.2 µg/m3) and negative for ozone (HR=0.94 (0.89 to 1.00) per 3 µg/m3). For admissions HRs for PM2.5 and NO2 remained positive (HRs=1.05 (0.98 to 1.13) and 1.06 (0.98 to 1.15) per 1.9 µg/m3 and 10.7 µg/m3, respectively). Conclusions This large population-based cohort study found limited, inconclusive evidence for associations between air pollution and COPD incidence. Further work, utilising improved estimates of air pollution over time and enhanced socioeconomic indicators, is required to clarify the association between air pollution and COPD incidence.
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Affiliation(s)
- R W Atkinson
- Population Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK
| | - I M Carey
- Population Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK
| | - A J Kent
- Ricardo-AEA Ltd., Harwell IBC, Didcot, Oxfordshire, UK
| | - T P van Staa
- London School of Hygiene and Tropical Medicine, London, UK Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - H R Anderson
- Population Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK MRC-PHE Centre for Environment and Health, King's College London, UK
| | - D G Cook
- Population Health Research Institute and MRC-PHE Centre for Environment and Health, St George's, University of London, London, UK
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Huber BR, Meabon JS, Martin TJ, Mourad PD, Bennett R, Kraemer BC, Cernak I, Petrie EC, Emery MJ, Swenson ER, Mayer C, Mehic E, Peskind ER, Cook DG. Blast exposure causes early and persistent aberrant phospho- and cleaved-tau expression in a murine model of mild blast-induced traumatic brain injury. J Alzheimers Dis 2014; 37:309-23. [PMID: 23948882 DOI: 10.3233/jad-130182] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mild traumatic brain injury (mTBI) is considered the 'signature injury' of combat veterans that have served during the wars in Iraq and Afghanistan. This prevalence of mTBI is due in part to the common exposure to high explosive blasts in combat zones. In addition to the threats of blunt impact trauma caused by flying objects and the head itself being propelled against objects, the primary blast overpressure (BOP) generated by high explosives is capable of injuring the brain. Compared to other means of causing TBI, the pathophysiology of mild-to-moderate BOP is less well understood. To study the consequences of BOP exposure in mice, we employed a well-established approach using a compressed gas-driven shock tube that recapitulates battlefield-relevant open-field BOP. We found that 24 hours post-blast a single mild BOP provoked elevation of multiple phospho- and cleaved-tau species in neurons, as well as elevating manganese superoxide-dismutase (MnSOD or SOD2) levels, a cellular response to oxidative stress. In hippocampus, aberrant tau species persisted for at least 30 days post-exposure, while SOD2 levels returned to sham control levels. These findings suggest that elevated phospho- and cleaved-tau species may be among the initiating pathologic processes induced by mild blast exposure. These findings may have important implications for efforts to prevent blast-induced insults to the brain from progressing into long-term neurodegenerative disease processes.
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Affiliation(s)
- Bertrand R Huber
- Northwest Network Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
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Donin AS, Nightingale CM, Owen CG, Rudnicka AR, Stephen AM, Cook DG, Whincup PH. OP81 Not Eating Breakfast is Associated with increased Type 2 Diabetes Risk Markers in a Multiethnic Population of Children: the Child Heart and Health Study in England (CHASE). Br J Soc Med 2013. [DOI: 10.1136/jech-2013-203126.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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DeWilde SJ, Carey IM, Shah SM, Harris T, Rudnicka AR, Whincup PH, Cook DG. PS07 Trends in Blood Pressure in England: Good Treatment or Good Luck? Br J Soc Med 2012. [DOI: 10.1136/jech-2012-201753.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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