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Danner B, Gonzalez AD, Corbett WC, Alhneif M, Etemadmoghadam S, Parker-Garza J, Flanagan ME. Brain banking in the United States and Europe: Importance, challenges, and future trends. J Neuropathol Exp Neurol 2024; 83:219-229. [PMID: 38506125 PMCID: PMC10951968 DOI: 10.1093/jnen/nlae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024] Open
Abstract
In recent years, brain banks have become valuable resources for examining the molecular underpinnings of various neurological and psychological disorders including Alzheimer disease and Parkinson disease. However, the availability of brain tissue has significantly declined. Proper collection, preparation, and preservation of postmortem autopsy tissue are essential for optimal downstream brain tissue distribution and experimentation. Collaborations between brain banks through larger networks such as NeuroBioBank with centralized sample request mechanisms promote tissue distribution where brain donations are disproportionately lower. Collaborations between brain banking networks also help to standardize the brain donation and sample preparation processes, ensuring proper distribution and experimentation. Ethical brain donation and thorough processing enhances the responsible conduct of scientific studies. Education and outreach programs that foster collaboration between hospitals, nursing homes, neuropathologists, and other research scientists help to alleviate concerns among potential brain donors. Furthermore, ensuring that biorepositories accurately reflect the true demographics of communities will result in research data that reliably represent populations. Implementing these measures will grant scientists improved access to brain tissue, facilitating a deeper understanding of the neurological diseases that impact millions.
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Affiliation(s)
- Benjamin Danner
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - Angelique D Gonzalez
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - William Cole Corbett
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - Mohammad Alhneif
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - Shahroo Etemadmoghadam
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - Julie Parker-Garza
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
| | - Margaret E Flanagan
- Biggs Institute, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
- Department of Pathology, University of Texas Health Science Center San Antonio, San Antonio, Texas, USA
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2
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Panayi N, Schulz P, He P, Hanna B, Lifshitz J, Rowe RK, Sierks MR. Traumatic Brain Injury in Mice Generates Early-Stage Alzheimer's Disease Related Protein Pathology that Correlates with Neurobehavioral Deficits. Mol Neurobiol 2024:10.1007/s12035-024-04035-5. [PMID: 38411868 DOI: 10.1007/s12035-024-04035-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/09/2024] [Indexed: 02/28/2024]
Abstract
Traumatic brain injury (TBI) increases the long-term risk of neurodegenerative diseases, including Alzheimer's disease (AD). Here, we demonstrate that protein variant pathology generated in brain tissue of an experimental TBI mouse model is similar to protein variant pathology observed during early stages of AD, and that subacute accumulation of AD associated variants of amyloid beta (Aβ) and tau in the TBI mouse model correlated with behavioral deficits. Male C57BL/6 mice were subjected to midline fluid percussion injury or to sham injury, after which sensorimotor function (rotarod, neurological severity score), cognitive deficit (novel object recognition), and affective deficits (elevated plus maze, forced swim task) were assessed post-injury (DPI). Protein pathology at 7, 14, and 28 DPI was measured in multiple brain regions using an immunostain panel of reagents selectively targeting different neurodegenerative disease-related variants of Aβ, tau, TDP-43, and alpha-synuclein. Overall, TBI resulted in sensorimotor deficits and accumulation of AD-related protein variant pathology near the impact site, both of which returned to sham levels by 14 DPI. Individual mice, however, showed persistent behavioral deficits and/or accumulation of toxic protein variants at 28 DPI. Behavioral outcomes of each mouse were correlated with levels of seven different protein variants in ten brain regions at specific DPI. Out of 21 significant correlations between protein variant levels and behavioral deficits, 18 were with variants of Aβ or tau. Correlations at 28 DPI were all between a single Aβ or tau variant, both of which are strongly associated with human AD cases. These data provide a direct mechanistic link between protein pathology resulting from TBI and the hallmarks of AD.
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Affiliation(s)
- Nicholas Panayi
- Chemical Engineering, The School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-6106, USA
| | - Philip Schulz
- Chemical Engineering, The School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-6106, USA
| | - Ping He
- Chemical Engineering, The School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-6106, USA
| | - Brandon Hanna
- Chemical Engineering, The School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-6106, USA
| | - Jonathan Lifshitz
- Department of Psychiatry, University of Arizona College of Medicine - Phoenix, Phoenix, AZ, USA
- Phoenix Veteran Affairs Health Care System, Phoenix, AZ, USA
| | - Rachel K Rowe
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, USA
| | - Michael R Sierks
- Chemical Engineering, The School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287-6106, USA.
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3
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Ibeas K, Griñán‐Ferré C, del Mar Romero M, Sebastián D, Bastías‐Pérez M, Gómez R, Soler‐Vázquez MC, Zagmutt S, Pallás M, Castell M, Belsham DD, Mera P, Herrero L, Serra D. Cpt1a silencing in AgRP neurons improves cognitive and physical capacity and promotes healthy aging in male mice. Aging Cell 2024; 23:e14047. [PMID: 37994388 PMCID: PMC10861206 DOI: 10.1111/acel.14047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023] Open
Abstract
Orexigenic neurons expressing agouti-related protein (AgRP) and neuropeptide Y in the arcuate nucleus (ARC) of the hypothalamus are activated in response to dynamic variations in the metabolic state, including exercise. We previously observed that carnitine palmitoyltransferase 1a (CPT1A), a rate-limiting enzyme of mitochondrial fatty acid oxidation, is a key factor in AgRP neurons, modulating whole-body energy balance and fluid homeostasis. However, the effect of CPT1A in AgRP neurons in aged mice and during exercise has not been explored yet. We have evaluated the physical and cognitive capacity of adult and aged mutant male mice lacking Cpt1a in AgRP neurons (Cpt1a KO). Adult Cpt1a KO male mice exhibited enhanced endurance performance, motor coordination, locomotion, and exploration compared with control mice. No changes were observed in anxiety-related behavior, cognition, and muscle strength. Adult Cpt1a KO mice showed a reduction in gastrocnemius and tibialis anterior muscle mass. The cross-sectional area (CSA) of these muscles were smaller than those of control mice displaying a myofiber remodeling from type II to type I fibers. In aged mice, changes in myofiber remodeling were maintained in Cpt1a KO mice, avoiding loss of physical capacity during aging progression. Additionally, aged Cpt1a KO mice revealed better cognitive skills, reduced inflammation, and oxidative stress in the hypothalamus and hippocampus. In conclusion, CPT1A in AgRP neurons appears to modulate health and protects against aging. Future studies are required to clarify whether CPT1A is a potential antiaging candidate for treating diseases affecting memory and physical activity.
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Affiliation(s)
- Kevin Ibeas
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN)Instituto de Salud Carlos IIIMadridSpain
| | - Christian Griñán‐Ferré
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNEDInstituto de Salud Carlos IIIMadridSpain
| | - Maria del Mar Romero
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN)Instituto de Salud Carlos IIIMadridSpain
| | - David Sebastián
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM)Instituto de Salud Carlos IIIMadridSpain
| | - Marianela Bastías‐Pérez
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
- Present address:
Facultad de Salud y Ciencias SocialesUniversidad de las AméricasSantiago de ChileChile
| | - Roberto Gómez
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
| | - M. Carmen Soler‐Vázquez
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
| | - Sebastián Zagmutt
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
| | - Mercè Pallás
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNEDInstituto de Salud Carlos IIIMadridSpain
| | - Margarida Castell
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN)Instituto de Salud Carlos IIIMadridSpain
- Institut de Recerca en Nutrició i Seguretat Alimentària (INSA‐UB), Universitat de BarcelonaSanta Coloma de GramenetSpain
| | - Denise D. Belsham
- Department of Physiology, Obstetrics and Gynaecology and MedicineUniversity of TorontoTorontoOntarioCanada
| | - Paula Mera
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
| | - Laura Herrero
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN)Instituto de Salud Carlos IIIMadridSpain
| | - Dolors Serra
- Department of Biochemistry and Physiology, School of Pharmacy and Food SciencesUniversitat de BarcelonaBarcelonaSpain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de BarcelonaBarcelonaSpain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y la Nutrición (CIBEROBN)Instituto de Salud Carlos IIIMadridSpain
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4
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Jeremic D, Jiménez-Díaz L, Navarro-López JD. Targeting epigenetics: A novel promise for Alzheimer's disease treatment. Ageing Res Rev 2023; 90:102003. [PMID: 37422087 DOI: 10.1016/j.arr.2023.102003] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/30/2023] [Accepted: 07/03/2023] [Indexed: 07/10/2023]
Abstract
So far, the search for a cure for Alzheimer Disease (AD) has been unsuccessful. The only approved drugs attenuate some symptoms, but do not halt the progress of this disease, which affects 50 million people worldwide and will increase its incidence in the coming decades. Such scenario demands new therapeutic approaches to fight against this devastating dementia. In recent years, multi-omics research and the analysis of differential epigenetic marks in AD subjects have contributed to our understanding of AD; however, the impact of epigenetic research is yet to be seen. This review integrates the most recent data on pathological processes and epigenetic changes relevant for aging and AD, as well as current therapies targeting epigenetic machinery in clinical trials. Evidence shows that epigenetic modifications play a key role in gene expression, which could provide multi-target preventative and therapeutic approaches in AD. Both novel and repurposed drugs are employed in AD clinical trials due to their epigenetic effects, as well as increasing number of natural compounds. Given the reversible nature of epigenetic modifications and the complexity of gene-environment interactions, the combination of epigenetic-based therapies with environmental strategies and drugs with multiple targets might be needed to properly help AD patients.
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Affiliation(s)
- Danko Jeremic
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain
| | - Lydia Jiménez-Díaz
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain.
| | - Juan D Navarro-López
- University of Castilla-La Mancha, NeuroPhysiology & Behavior Lab, Biomedical Research Center (CRIB), School of Medicine of Ciudad Real, Spain.
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5
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Panayi N, Schulz P, He P, Hanna B, Lifshitz J, Rowe R, Sierks MR. Traumatic brain injury in mice generates early-stage Alzheimer's disease related protein pathology that correlates with neurobehavioral deficits. RESEARCH SQUARE 2023:rs.3.rs-2865501. [PMID: 37205508 PMCID: PMC10187431 DOI: 10.21203/rs.3.rs-2865501/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Traumatic brain injury (TBI) increases the long-term risk of neurodegenerative diseases, including Alzheimer's disease (AD). Here, we demonstrate that protein variant pathology generated in brain tissue of an experimental TBI mouse model is similar to protein variant pathology observed in human ADbrains, and that subacute accumulation of two AD associated variants of amyloid beta (Aβ) and tau in the TBI mouse model correlated with behavioral deficits. Male C57BL/6 mice were subjected to midline fluid percussion injury or to sham injury, after which sensorimotor function (rotarod, neurological severity score), cognitive deficit (novel object recognition), and affective deficits (elevated plus maze, forced swim task) were assessed at different days post-injury (DPI). Protein pathology at 7, 14, and 28 DPI was measured in multiple brain regions using an immunostain panel of reagents selectively targeting different neurodegenerative disease-related variants of Aβ, tau, TDP-43, and alpha-synuclein. Overall, TBI resulted in sensorimotor deficits and accumulation of AD-related protein variant pathology near the impact site, both of which returned to sham levels by 14 DPI. Individual mice, however, showed persistent behavioral deficits and/or accumulation of selected toxic protein variants at 28 DPI. Behavioral outcomes of each mouse were correlated with levels of seven different protein variants in ten brain regions at specific DPI. Out of 21 significant correlations between protein variant levels and behavioral deficits, 18 were with variants of Aβ or tau. Correlations at 28 DPI were all between a single Aβ or tau variant, both of which are strongly associated with human AD cases. These data provide a direct mechanistic link between protein pathology resulting from TBI and the hallmarks of AD.
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Affiliation(s)
| | | | | | | | - Jonathan Lifshitz
- University of Arizona College of Pharmacy: The University of Arizona College of Medicine Phoenix
| | - Rachel Rowe
- University of Colorado at Boulder: University of Colorado Boulder
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6
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Ye C, Behnke JA, Hardin KR, Zheng JQ. Drosophila melanogaster as a model to study age and sex differences in brain injury and neurodegeneration after mild head trauma. Front Neurosci 2023; 17:1150694. [PMID: 37077318 PMCID: PMC10106652 DOI: 10.3389/fnins.2023.1150694] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/09/2023] [Indexed: 04/05/2023] Open
Abstract
Repetitive physical insults to the head, including those that elicit mild traumatic brain injury (mTBI), are a known risk factor for a variety of neurodegenerative conditions including Alzheimer's disease (AD), Parkinson's disease (PD), and chronic traumatic encephalopathy (CTE). Although most individuals who sustain mTBI typically achieve a seemingly full recovery within a few weeks, a subset experience delayed-onset symptoms later in life. As most mTBI research has focused on the acute phase of injury, there is an incomplete understanding of mechanisms related to the late-life emergence of neurodegeneration after early exposure to mild head trauma. The recent adoption of Drosophila-based brain injury models provides several unique advantages over existing preclinical animal models, including a tractable framework amenable to high-throughput assays and short relative lifespan conducive to lifelong mechanistic investigation. The use of flies also provides an opportunity to investigate important risk factors associated with neurodegenerative conditions, specifically age and sex. In this review, we survey current literature that examines age and sex as contributing factors to head trauma-mediated neurodegeneration in humans and preclinical models, including mammalian and Drosophila models. We discuss similarities and disparities between human and fly in aging, sex differences, and pathophysiology. Finally, we highlight Drosophila as an effective tool for investigating mechanisms underlying head trauma-induced neurodegeneration and for identifying therapeutic targets for treatment and recovery.
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Affiliation(s)
- Changtian Ye
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Joseph A. Behnke
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Katherine R. Hardin
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - James Q. Zheng
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
- Center for Neurodegenerative Diseases, Emory University School of Medicine, Atlanta, GA, United States
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7
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Mitophagy and Traumatic Brain Injury: Regulatory Mechanisms and Therapeutic Potentials. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:1649842. [PMID: 36846712 PMCID: PMC9957633 DOI: 10.1155/2023/1649842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/25/2022] [Accepted: 01/21/2023] [Indexed: 02/19/2023]
Abstract
Traumatic brain injury (TBI), a kind of external trauma-induced brain function alteration, has posed a financial burden on the public health system. TBI pathogenesis involves a complicated set of events, including primary and secondary injuries that can cause mitochondrial damage. Mitophagy, a process in which defective mitochondria are specifically degraded, segregates and degrades defective mitochondria allowing a healthier mitochondrial network. Mitophagy ensures that mitochondria remain healthy during TBI, determining whether neurons live or die. Mitophagy acts as a critical regulator in maintaining neuronal survival and healthy. This review will discuss the TBI pathophysiology and the consequences of the damage it causes to mitochondria. This review article will explore the mitophagy process, its key factors, and pathways and reveal the role of mitophagy in TBI. Mitophagy will be further recognized as a therapeutic approach in TBI. This review will offer new insights into mitophagy's role in TBI progression.
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8
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Cai C, Zambach SA, Grubb S, Tao L, He C, Lind BL, Thomsen KJ, Zhang X, Hald BO, Nielsen RM, Kim K, Devor A, Lønstrup M, Lauritzen MJ. Impaired dynamics of precapillary sphincters and pericytes at first-order capillaries predict reduced neurovascular function in the aging mouse brain. NATURE AGING 2023; 3:173-184. [PMID: 37118115 PMCID: PMC11081516 DOI: 10.1038/s43587-022-00354-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 12/20/2022] [Indexed: 04/30/2023]
Abstract
The microvascular inflow tract, comprising the penetrating arterioles, precapillary sphincters and first-order capillaries, is the bottleneck for brain blood flow and energy supply. Exactly how aging alters the structure and function of the microvascular inflow tract remains unclear. By in vivo four-dimensional two-photon imaging, we reveal an age-dependent decrease in vaso-responsivity accompanied by a decrease in vessel density close to the arterioles and loss of vascular mural cell processes, although the number of mural cell somas and their alpha smooth muscle actin density were preserved. The age-related reduction in vascular reactivity was mostly pronounced at precapillary sphincters, highlighting their crucial role in capillary blood flow regulation. Mathematical modeling revealed impaired pressure and flow control in aged mice during vasoconstriction. Interventions that preserve dynamics of cerebral blood vessels may ameliorate age-related decreases in blood flow and prevent brain frailty.
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Affiliation(s)
- Changsi Cai
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
| | - Stefan Andreas Zambach
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Søren Grubb
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Lechan Tao
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
- School of Biomedical Engineering, Shanghai Jiao-Tong University, Shanghai, China
| | - Chen He
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Barbara Lykke Lind
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Kirsten Joan Thomsen
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Xiao Zhang
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Bjørn Olav Hald
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Reena Murmu Nielsen
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Kayeon Kim
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Anna Devor
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA
| | - Micael Lønstrup
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Martin Johannes Lauritzen
- Department of Neuroscience, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
- Department of Clinical Neurophysiology, Rigshospitalet, Copenhagen, Denmark.
- Center for Healthy Aging, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
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9
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Mazumder S, Kiernan MC, Halliday GM, Timmins HC, Mahoney CJ. The contribution of brain banks to knowledge discovery in amyotrophic lateral sclerosis: A systematic review. Neuropathol Appl Neurobiol 2022; 48:e12845. [PMID: 35921237 PMCID: PMC9804699 DOI: 10.1111/nan.12845] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 06/17/2022] [Accepted: 07/23/2022] [Indexed: 01/09/2023]
Abstract
Over the past decade, considerable efforts have been made to accelerate pathophysiological understanding of fatal neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) with brain banks at the forefront. In addition to exploratory disease mechanisms, brain banks have aided our understanding with regard to clinical diagnosis, genetics and cell biology. Across neurodegenerative disorders, the impact of brain tissue in ALS research has yet to be quantified. This review aims to outline (i) how postmortem tissues from brain banks have influenced our understanding of ALS over the last 15 years, (ii) correlate the location of dedicated brain banks with the geographical prevalence of ALS, (iii) identify the frequency of features reported from postmortem studies and (iv) propose common reporting standards for materials obtained from dedicated brain banks. A systematic review was conducted using PubMed and Web of Science databases using key words. From a total of 1439 articles, 73 articles were included in the final review, following PRISMA guidelines. Following a thematic analysis, articles were categorised into five themes; clinico-pathological (13), genetic (20), transactive response DNA binding protein 43 (TDP-43) pathology (12), non-TDP-43 neuronal pathology (nine) and extraneuronal pathology (19). Research primarily focused on the genetics of ALS, followed by protein pathology. About 63% of the brain banks were in the United States of America and United Kingdom. The location of brain banks overall aligned with the incidence of ALS worldwide with 88% of brain banks situated in Europe and North America. An overwhelming lack of consistency in reporting and replicability was observed, strengthening the need for a standardised reporting system. Overall, postmortem material from brain banks generated substantial new knowledge in areas of genetics and proteomics and supports their ongoing role as an important research tool.
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Affiliation(s)
- Srestha Mazumder
- ForeFront Clinic, Brain and Mind CentreUniversity of SydneySydneyNew South WalesAustralia
| | - Matthew C. Kiernan
- ForeFront Clinic, Brain and Mind CentreUniversity of SydneySydneyNew South WalesAustralia
| | - Glenda M. Halliday
- Frontier, Brain and Mind CentreUniversity of SydneySydneyNew South WalesAustralia
| | - Hannah C. Timmins
- ForeFront Clinic, Brain and Mind CentreUniversity of SydneySydneyNew South WalesAustralia
| | - Colin J. Mahoney
- ForeFront Clinic, Brain and Mind CentreUniversity of SydneySydneyNew South WalesAustralia
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10
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Dodd WS, Panther EJ, Pierre K, Hernandez JS, Patel D, Lucke-Wold B. Traumatic Brain Injury and Secondary Neurodegenerative Disease. TRAUMA CARE 2022; 2:510-522. [PMID: 36211982 PMCID: PMC9541088 DOI: 10.3390/traumacare2040042] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2023] Open
Abstract
Traumatic brain injury (TBI) is a devastating event with severe long-term complications. TBI and its sequelae are one of the leading causes of death and disability in those under 50 years old. The full extent of secondary brain injury is still being intensely investigated; however, it is now clear that neurotrauma can incite chronic neurodegenerative processes. Chronic traumatic encephalopathy, Parkinson's disease, and many other neurodegenerative syndromes have all been associated with a history of traumatic brain injury. The complex nature of these pathologies can make clinical assessment, diagnosis, and treatment challenging. The goal of this review is to provide a concise appraisal of the literature with focus on emerging strategies to improve clinical outcomes. First, we review the pathways involved in the pathogenesis of neurotrauma-related neurodegeneration and discuss the clinical implications of this rapidly evolving field. Next, because clinical evaluation and neuroimaging are essential to the diagnosis and management of neurodegenerative diseases, we analyze the clinical investigations that are transforming these areas of research. Finally, we briefly review some of the preclinical therapies that have shown the most promise in improving outcomes after neurotrauma.
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Affiliation(s)
- William S. Dodd
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Eric J. Panther
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Kevin Pierre
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Jairo S. Hernandez
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Devan Patel
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
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11
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Baragi VM, Gattu R, Trifan G, Woodard JL, Meyers K, Halstead TS, Hipple E, Haacke EM, Benson RR. Neuroimaging Markers for Determining Former American Football Players at Risk for Alzheimer's Disease. Neurotrauma Rep 2022; 3:398-414. [PMID: 36204386 PMCID: PMC9531889 DOI: 10.1089/neur.2022.0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
NFL players, by virtue of their exposure to traumatic brain injury (TBI), are at higher risk of developing dementia and Alzheimer's disease (AD) than the general population. Early recognition and intervention before the onset of clinical symptoms could potentially avert/delay the long-term consequences of these diseases. Given that AD is thought to have a long pre-clinical incubation period, the aim of the current research was to determine whether former NFL players show evidence of incipient dementia in their structural imaging before diagnosis of AD. To identify neuroimaging markers of AD, against which former NFL players would be compared, we conducted a whole-brain volumetric analysis using a cohort of AD patients (ADNI clinical database) to produce a set of brain regions demonstrating sensitivity to early AD pathology (i.e., the “AD fingerprint”). A group of 46 former NFL players' brain magnetic resonance images were then interrogated using the AD fingerprint, that is, the former NFL subjects were compared volumetrically to AD patients using a T1-weighted magnetization-prepared rapid gradient echo sequence. The FreeSurfer image analysis suite (version 6.0) was used to obtain volumetric and cortical thickness data. The Automated Neuropsychological Assessment Metric-Version 4 was used to assess current cognitive functioning. A total of 55 brain regions demonstrated significant atrophy or ex vacuo dilatation bilaterally in AD patients versus controls. Of the 46 former NFL players, 41% demonstrated a greater than expected number of atrophied/dilated AD regions compared with age-matched controls, presumably reflecting AD pathology.
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Affiliation(s)
| | - Ramtilak Gattu
- Center for Neurological Studies, Dearborn, Michigan, USA
| | | | | | | | | | | | - Ewart Mark Haacke
- HUH-MR Research/Radiology, Wayne State University/Detroit Receiving Hospital, Detroit, Michigan, USA
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12
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Barthélemy EJ, Affana CK, Asfaw ZK, Dams-O'Connor K, Rahman J, Jones S, Ullman J, Margetis K, Hickman ZL, Dangayach NS, Giwa AO. Racial and Socioeconomic Disparities in Neurotrauma: Research Priorities in the New York Metropolitan Area through a Global Neurosurgery Paradigm. World Neurosurg 2022; 165:51-57. [PMID: 35700861 DOI: 10.1016/j.wneu.2022.06.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/06/2022] [Indexed: 11/29/2022]
Abstract
The New York Neurotrauma Consortium (NYNC) is a nascent multidisciplinary research and advocacy organization based in the New York Metropolitan Area (NYMA). It aims to advance health equity and optimize outcomes for traumatic brain and spine injury patients. Given the extensive racial, ethnic, and socioeconomic diversity of the NYMA, global health frameworks aimed at eliminating disparities in neurotrauma may provide a relevant and useful model for the informing research agendas of consortia like the NYNC. In this review, we present a comparative analysis of key health disparities in traumatic brain injury (TBI) that persist in the NYMA as well as in low- and middle-income countries (LMIC). Examples include: (a) inequitable access to quality care due to fragmentation of healthcare systems, (b) barriers to effective prehospital care for TBI, and (c) socioeconomic challenges faced by patients and their families during the subacute and chronic post-injury phases of TBI care. This review presents strategies to address each area of health disparity based on previous studies conducted in both LMIC and high-income country (HIC) settings. Increased awareness of healthcare disparities, education of healthcare professionals, effective policy advocacy for systemic changes, and fostering racial diversity of the trauma care workforce can guide the development of trauma care systems in the NYMA that are free of racial and related healthcare disparities.
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Affiliation(s)
- Ernest J Barthélemy
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, University of California San Francisco, San Francisco, California, USA; Center for Health Equity in Surgery and Anesthesia, University of California San Francisco, San Francisco, California, USA.
| | | | - Zerubabbel K Asfaw
- Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York
| | - Kristen Dams-O'Connor
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York; Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jueria Rahman
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York; Department of Neurosurgery, NYC Health + Hospitals/Elmhurst, Queens, New York
| | - Salazar Jones
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York; Department of Neurosurgery, NYC Health + Hospitals/Elmhurst, Queens, New York
| | - Jamie Ullman
- New York Neurotrauma Consortium, Inc., New York, New York; Institute for Neurology and Neurosurgery at North Shore University Hospital
| | - Konstantinos Margetis
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York
| | - Zachary L Hickman
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York; Department of Neurosurgery, NYC Health + Hospitals/Elmhurst, Queens, New York
| | - Neha S Dangayach
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Neurosurgery, Icahn School of Medicine at the Mount Sinai Hospital, New York, New York; Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Al O Giwa
- New York Neurotrauma Consortium, Inc., New York, New York; Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
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13
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Bouchard HC, Sun D, Dennis EL, Newsome MR, Disner SG, Elman J, Silva A, Velez C, Irimia A, Davenport ND, Sponheim SR, Franz CE, Kremen WS, Coleman MJ, Williams MW, Geuze E, Koerte IK, Shenton ME, Adamson MM, Coimbra R, Grant G, Shutter L, George MS, Zafonte RD, McAllister TW, Stein MB, Thompson PM, Wilde EA, Tate DF, Sotiras A, Morey RA. Age-dependent white matter disruptions after military traumatic brain injury: Multivariate analysis results from ENIGMA brain injury. Hum Brain Mapp 2022; 43:2653-2667. [PMID: 35289463 PMCID: PMC9057089 DOI: 10.1002/hbm.25811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 12/18/2021] [Accepted: 02/10/2022] [Indexed: 01/27/2023] Open
Abstract
Mild Traumatic brain injury (mTBI) is a signature wound in military personnel, and repetitive mTBI has been linked to age-related neurogenerative disorders that affect white matter (WM) in the brain. However, findings of injury to specific WM tracts have been variable and inconsistent. This may be due to the heterogeneity of mechanisms, etiology, and comorbid disorders related to mTBI. Non-negative matrix factorization (NMF) is a data-driven approach that detects covarying patterns (components) within high-dimensional data. We applied NMF to diffusion imaging data from military Veterans with and without a self-reported TBI history. NMF identified 12 independent components derived from fractional anisotropy (FA) in a large dataset (n = 1,475) gathered through the ENIGMA (Enhancing Neuroimaging Genetics through Meta-Analysis) Military Brain Injury working group. Regressions were used to examine TBI- and mTBI-related associations in NMF-derived components while adjusting for age, sex, post-traumatic stress disorder, depression, and data acquisition site/scanner. We found significantly stronger age-dependent effects of lower FA in Veterans with TBI than Veterans without in four components (q < 0.05), which are spatially unconstrained by traditionally defined WM tracts. One component, occupying the most peripheral location, exhibited significantly stronger age-dependent differences in Veterans with mTBI. We found NMF to be powerful and effective in detecting covarying patterns of FA associated with mTBI by applying standard parametric regression modeling. Our results highlight patterns of WM alteration that are differentially affected by TBI and mTBI in younger compared to older military Veterans.
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Affiliation(s)
- Heather C. Bouchard
- Duke‐UNC Brain Imaging and Analysis CenterDuke UniversityDurhamNorth CarolinaUSA
- Mid‐Atlantic Mental Illness Research Education and Clinical CenterDurham VA Medical CenterDurhamNorth CarolinaUSA
- Center for Brain, Biology & BehaviorUniversity of Nebraska‐LincolnLincolnNebraskaUSA
| | - Delin Sun
- Duke‐UNC Brain Imaging and Analysis CenterDuke UniversityDurhamNorth CarolinaUSA
- Mid‐Atlantic Mental Illness Research Education and Clinical CenterDurham VA Medical CenterDurhamNorth CarolinaUSA
| | - Emily L. Dennis
- Department of NeurologyUniversity of UtahSalt Lake CityUtahUSA
- Department of RadiologyStanford UniversityStanfordCaliforniaUSA
| | - Mary R. Newsome
- Michael E. DeBakey VA Medical CenterHoustonTexasUSA
- H. Ben Taub Department of Physical Medicine and RehabilitationBaylor College of MedicineHoustonTexasUSA
| | - Seth G. Disner
- Minneapolis VA Health Care SystemMinneapolisMinnesotaUSA
- Department of PsychiatryUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Jeremy Elman
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
- Center for Behavior Genetics of AgingUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - Annelise Silva
- Psychiatry Neuroimaging LaboratoryBrigham & Women's HospitalBostonMassachusettsUSA
| | - Carmen Velez
- Department of NeurologyUniversity of UtahSalt Lake CityUtahUSA
- George E. Wahlen Veterans Affairs Medical CenterSalt Lake CityUtahUSA
| | - Andrei Irimia
- Leonard Davis School of GerontologyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Department of Biomedical Engineering, Viterbi School of EngineeringUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Nicholas D. Davenport
- Minneapolis VA Health Care SystemMinneapolisMinnesotaUSA
- Department of PsychiatryUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Scott R. Sponheim
- Minneapolis VA Health Care SystemMinneapolisMinnesotaUSA
- Department of PsychiatryUniversity of Minnesota Medical SchoolMinneapolisMinnesotaUSA
| | - Carol E. Franz
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
- Center for Behavior Genetics of AgingUniversity of California, San DiegoSan DiegoCaliforniaUSA
| | - William S. Kremen
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
- Center for Behavior Genetics of AgingUniversity of California, San DiegoSan DiegoCaliforniaUSA
- Center of Excellence for Stress and Mental HealthVA San Diego Healthcare SystemSan DiegoCaliforniaUSA
| | - Michael J. Coleman
- Psychiatry Neuroimaging LaboratoryBrigham & Women's HospitalBostonMassachusettsUSA
| | - M. Wright Williams
- Michael E. DeBakey VA Medical CenterHoustonTexasUSA
- Menninger Department of Psychiatry and Behavioral SciencesBaylor College of MedicineHoustonTexasUSA
| | - Elbert Geuze
- Department of PsychiatryUniversity Medical CenterUtrechtNetherlands
- Brain Research & Innovation CentreMinistry of DefenceUtrechtNetherlands
| | - Inga K. Koerte
- Psychiatry Neuroimaging LaboratoryBrigham & Women's HospitalBostonMassachusettsUSA
| | - Martha E. Shenton
- Psychiatry Neuroimaging LaboratoryBrigham & Women's HospitalBostonMassachusettsUSA
| | - Maheen M. Adamson
- Rehabilitation ServiceVA Palo AltoPalo AltoCaliforniaUSA
- NeurosurgeryStanford School of MedicineStanfordCaliforniaUSA
| | - Raul Coimbra
- Department of SurgeryUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Gerald Grant
- Department of NeurosurgeryStanford University Medical CenterPalo AltoCaliforniaUSA
| | - Lori Shutter
- Department of Critical Care MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Mark S. George
- Department of PsychiatryMedical University of South CarolinaCharlestonSouth CarolinaUSA
| | - Ross D. Zafonte
- Spaulding Rehabilitation HospitalMassachusetts General Hospital, Brigham and Women's Hospital and Harvard Medical SchoolBostonMassachusettsUSA
| | | | - Murray B. Stein
- Department of PsychiatryUniversity of California San DiegoLa JollaCaliforniaUSA
- Herbert Wertheim School of Public Health and Human Longevity ScienceUniversity of California San DiegoLa JollaCaliforniaUSA
| | - Paul M. Thompson
- Imaging Genetics Center, Stevens Neuroimaging & Informatics InstituteKeck School of Medicine of USCMarina del ReyCaliforniaUSA
- Department of Neurology, Pediatrics, Psychiatry, Radiology, Engineering, and OphthalmologyUniversity of Southern California (USC), Los AngelesCaliforniaUSA
- Department of PediatricsUSCLos AngelesCaliforniaUSA
- Department of PsychiatryUSCLos AngelesCaliforniaUSA
- Department of RadiologyUSCLos AngelesCaliforniaUSA
- Department of EngineeringUSCLos AngelesCaliforniaUSA
- Department of OphthalmologyUSCLos AngelesCaliforniaUSA
- Department of Radiology and Institute for Informatics, School of MedicineWashington University St. LouisSt. LouisMissouriUSA
| | - Elisabeth A. Wilde
- Department of NeurologyUniversity of UtahSalt Lake CityUtahUSA
- Michael E. DeBakey VA Medical CenterHoustonTexasUSA
- George E. Wahlen Veterans Affairs Medical CenterSalt Lake CityUtahUSA
| | - David F. Tate
- Department of NeurologyUniversity of UtahSalt Lake CityUtahUSA
- George E. Wahlen Veterans Affairs Medical CenterSalt Lake CityUtahUSA
| | - Aristeidis Sotiras
- Department of Radiology and Institute for Informatics, School of MedicineWashington University St. LouisSt. LouisMissouriUSA
| | - Rajendra A. Morey
- Duke‐UNC Brain Imaging and Analysis CenterDuke UniversityDurhamNorth CarolinaUSA
- Mid‐Atlantic Mental Illness Research Education and Clinical CenterDurham VA Medical CenterDurhamNorth CarolinaUSA
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14
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Clark A, Zelmanovich R, Vo Q, Martinez M, Nwafor DC, Lucke-Wold B. Inflammation and the role of infection: Complications and treatment options following neurotrauma. J Clin Neurosci 2022; 100:23-32. [PMID: 35381478 DOI: 10.1016/j.jocn.2022.03.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/14/2022] [Accepted: 03/29/2022] [Indexed: 02/08/2023]
Abstract
Traumatic brain injury can have devastating consequences for patients and extended hospital stays and recovery course. Recent data indicate that the initial insult causes profound changes to the immune system and leads to a pro-inflammatory state. This alteration in homeostasis predisposes patients to an increased risk of infection and underlying autoimmune conditions. Increased emphasis has been placed on understanding this process both in the clinical and preclinical literature. This review highlights the intrinsic inflammatory conditions that can occur within the initial hospital stay, discusses long-term immune consequences, highlights emerging treatment options, and delves into important pathways currently being investigated with preclinical models.
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Affiliation(s)
- Alec Clark
- University of Central Florida, College of Medicine, Orlando, USA
| | | | - Quan Vo
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesville, USA
| | - Divine C Nwafor
- Department of Neurosurgery, West Virginia University, Morgantown, USA
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15
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Ademuyiwa OH, Fasogbon BM, Adebo OA. The potential role of Piper guineense (black pepper) in managing geriatric brain aging: a review. Crit Rev Food Sci Nutr 2021; 63:2840-2850. [PMID: 34609267 DOI: 10.1080/10408398.2021.1980764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Brain aging is one of the unavoidable aspects of geriatric life. As one ages, changes such as the shrinking of certain parts (particularly the frontal cortex, which is vital to learning and other complex mental activities) of the brain may occur. Consequently, communications between neurons are less effective, and blood flow to the brain could also decrease. Efforts made at the biological level for repair become inadequate, leading to the accumulation of β-amyloid peptide in the brain faster than its probable degradation mechanism, resulting in cognitive malfunction. Subsequent clinical usage of drugs in battling related brain-aging ailments has been associated with several undesirable side effects. However, recent research has investigated the potential use of natural compounds from food in combating such occurrences. This review provides information about the use of Piper guineense (black pepper) as a possible agent in managing brain aging because of its implications for practical brain function. P. guineense contains an alkaloid (piperine) reported to be an antioxidant, anti-depressant, and central nervous system stimulant. This alkaloid and other related compounds are neuroprotective agents that reduce lipid oxidation and inhibit tangles in the brain tissues.
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Affiliation(s)
| | - Beatrice Mofoluwaso Fasogbon
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doorfontein, Gauteng, South Africa
| | - Oluwafemi Ayodeji Adebo
- Department of Biotechnology and Food Technology, Faculty of Science, University of Johannesburg, Doorfontein, Gauteng, South Africa
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16
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Baloni P, Funk CC, Readhead B, Price ND. Systems modeling of metabolic dysregulation in neurodegenerative diseases. Curr Opin Pharmacol 2021; 60:59-65. [PMID: 34352486 PMCID: PMC8511060 DOI: 10.1016/j.coph.2021.06.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023]
Abstract
Neurodegenerative diseases (NDDs) encompass a wide range of conditions that arise owing to progressive degeneration and the ultimate loss of nerve cells in the brain and peripheral nervous system. NDDs such as Alzheimer's, Parkinson's, and Huntington's diseases negatively impact both length and quality of life, due to lack of effective disease-modifying treatments. Herein, we review the use of genome-scale metabolic models, network-based approaches, and integration with multiomics data to identify key biological processes that characterize NDDs. We describe powerful systems biology approaches for modeling NDD pathophysiology by leveraging in silico models that are informed by patient-derived multiomics data. These approaches can enable mechanistic insights into NDD-specific metabolic dysregulations that can be leveraged to identify potential metabolic markers of disease and predisease states.
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Affiliation(s)
| | - Cory C Funk
- Institute for Systems Biology, Seattle, WA, USA
| | - Ben Readhead
- Onegevity, a Division of Thorne HealthTech, New York, NY, USA; Arizona State University-Banner Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA
| | - Nathan D Price
- Institute for Systems Biology, Seattle, WA, USA; Onegevity, a Division of Thorne HealthTech, New York, NY, USA.
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17
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Rabinowitz AR, Kumar RG, Sima A, Venkatesan UM, Juengst SB, O'Neil-Pirozzi TM, Watanabe TK, Goldin Y, Hammond FM, Dreer LE. Aging with Traumatic Brain Injury: Deleterious Effects of Injury Chronicity Are Most Pronounced in Later Life. J Neurotrauma 2021; 38:2706-2713. [PMID: 34082606 PMCID: PMC8822416 DOI: 10.1089/neu.2021.0038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Understanding the effects of age on longitudinal traumatic brain injury (TBI) outcomes requires attention to both chronic and evolving TBI effects and age-related changes in health and function. The present study examines the independent and interactive effects of aging and chronicity on functional outcomes after TBI. We leveraged a well-defined cohort of individuals who sustained a moderate/severe TBI and received acute inpatient rehabilitation at specialized centers with high follow up rate as part of their involvement in the TBI Model Systems longitudinal study. We selected individuals at one of two levels of TBI chronicity (either 2 or 10 years post-injury) and used an exact matching procedure to obtain balanced chronicity groups based on age and other characteristics (N = 1993). We found that both older age and greater injury chronicity were related to greater disability, reduced functional independence, and less community participation. There was a significant age by chronicity interaction, indicating that the adverse effects of greater time post-injury were most pronounced among survivors who were age 75 or older. The inflection point at roughly 75 years of age was corroborated by post hoc analyses, dividing the sample by age at 75 years and examining the interaction between age group and chronicity. These findings point to a need for provision of rehabilitation services in the chronic injury period, particularly for those who are over 75 years old. Future work should investigate the underlying mechanisms of this interaction towards the goal of developing interventions and models of care to promote healthy aging with TBI.
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Affiliation(s)
| | - Raj G. Kumar
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Adam Sima
- Corrona, LLC, Waltham, Massachusetts, USA
| | | | - Shannon B. Juengst
- Department of Physical Medicine and Rehabilitation, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Applied Clinical Research, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Therese M. O'Neil-Pirozzi
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Boston, Massachusetts, USA
- Department of Communication Sciences and Disorders, Northeastern University, Charlestown, Massachusetts, USA
| | | | - Yelena Goldin
- Department of Cognitive Rehabilitation, Hackensack Meridian JFK University Medical Center, Edison, New Jersey, USA
- Department of Physical Medicine and Rehabilitation, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Flora M. Hammond
- Department of Physical Medicine and Rehabilitation, Indiana University School of Medicine Rehabilitation Hospital of Indiana, Indianapolis, Indiana, USA
| | - Laura E. Dreer
- Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham, Birmingham, Alabama, USA
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18
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Sandry J, Dobryakova E. Global hippocampal and selective thalamic nuclei atrophy differentiate chronic TBI from Non-TBI. Cortex 2021; 145:37-56. [PMID: 34689031 DOI: 10.1016/j.cortex.2021.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 05/04/2021] [Accepted: 08/12/2021] [Indexed: 12/27/2022]
Abstract
Traumatic brain injury (TBI) may increase susceptibility to neurodegenerative diseases later in life. One neurobiological parallel between chronic TBI and neurodegeneration may be accelerated aging and the nature of atrophy across subcortical gray matter structures. The main aim of the present investigation is to evaluate and rank the degree that subcortical gray matter atrophy differentiates chronic moderate-severe TBI from non-TBI participants by evaluating morphometric differences between groups. Forty individuals with moderate-severe chronic TBI (9.23 yrs from injury) and 33 healthy controls (HC) underwent high resolution 3D T1-weighted structural magnetic resonance imaging. Whole brain volume was classified into white matter, cortical and subcortical gray matter structures with hippocampi and thalami further segmented into subfields and nuclei, respectively. Extensive atrophy was observed across nearly all brain regions for chronic TBI participants. A series of multivariate logistic regression models identified subcortical gray matter structures of the hippocampus and thalamus as the most sensitive to differentiating chronic TBI from non-TBI participants (McFadden R2 = .36, p < .001). Further analyses revealed the pattern of hippocampal atrophy to be global, occurring across nearly all subfields. The pattern of thalamic atrophy appeared to be much more selective and non-uniform, with largest between-group differences evident for nuclei bordering the ventricles. Subcortical gray matter was negatively correlated with time since injury (r = -.31, p = .054), while white matter and cortical gray matter were not. Cognitive ability was lower in the chronic TBI group (Cohen's d = .97, p = .003) and correlated with subcortical structures including the pallidum (r2 = .23, p = .038), thalamus (r2 = .36, p = .007) and ventral diencephalon (r2 = .23, p = .036). These data may support an accelerated aging hypothesis in chronic moderate-severe TBI that coincides with a similar neuropathological profile found in neurodegenerative diseases.
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Affiliation(s)
- Joshua Sandry
- Psychology Department, Montclair State University, Montclair, NJ, USA.
| | - Ekaterina Dobryakova
- Center for Traumatic Brain Injury Research, Kessler Foundation, East Hanover, NJ, USA; Department of Physical Medicine and Rehabilitation, Rutgers-New Jersey Medical School Newark, NJ, USA
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19
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Zohar K, Lezmi E, Eliyahu T, Linial M. Ladostigil Attenuates Induced Oxidative Stress in Human Neuroblast-like SH-SY5Y Cells. Biomedicines 2021; 9:biomedicines9091251. [PMID: 34572436 PMCID: PMC8471141 DOI: 10.3390/biomedicines9091251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 12/13/2022] Open
Abstract
A hallmark of the aging brain is the robust inflammation mediated by microglial activation. Pathophysiology of common neurodegenerative diseases involves oxidative stress and neuroinflammation. Chronic treatment of aging rats by ladostigil, a compound with antioxidant and anti-inflammatory function, prevented microglial activation and learning deficits. In this study, we further investigate the effect of ladostigil on undifferentiated SH-SY5Y cells. We show that SH-SY5Y cells exposed to acute (by H2O2) or chronic oxidative stress (by Sin1, 3-morpholinosydnonimine) induced apoptotic cell death. However, in the presence of ladostigil, the decline in cell viability and the increase of oxidative levels were partially reversed. RNA-seq analysis showed that prolonged oxidation by Sin1 resulted in a simultaneous reduction of the expression level of endoplasmic reticulum (ER) genes that participate in proteostasis. By comparing the differential gene expression profile of Sin1 treated cells to cells incubated with ladostigil before being exposed to Sin1, we observed an over-expression of Clk1 (Cdc2-like kinase 1) which was implicated in psychophysiological stress in mice and Alzheimer’s disease. Ladostigil also suppressed the expression of Ccpg1 (Cell cycle progression 1) and Synj1 (Synaptojanin 1) that are involved in ER-autophagy and endocytic pathways. We postulate that ladostigil alleviated cell damage induced by oxidation. Therefore, under conditions of chronic stress that are observed in the aging brain, ladostigil may block oxidative stress processes and consequently reduce neurotoxicity.
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Affiliation(s)
- Keren Zohar
- Department of Biological Chemistry, Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; (K.Z.); (T.E.)
| | - Elyad Lezmi
- Department of Genetics, Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
| | - Tsiona Eliyahu
- Department of Biological Chemistry, Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; (K.Z.); (T.E.)
| | - Michal Linial
- Department of Biological Chemistry, Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; (K.Z.); (T.E.)
- Correspondence:
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20
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Serpa RO, Ferguson L, Larson C, Bailard J, Cooke S, Greco T, Prins ML. Pathophysiology of Pediatric Traumatic Brain Injury. Front Neurol 2021; 12:696510. [PMID: 34335452 PMCID: PMC8319243 DOI: 10.3389/fneur.2021.696510] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/21/2021] [Indexed: 11/23/2022] Open
Abstract
The national incidence of traumatic brain injury (TBI) exceeds that of any other disease in the pediatric population. In the United States the Centers for Disease Control and Prevention (CDC) reports 697,347 annual TBIs in children ages 0–19 that result in emergency room visits, hospitalization or deaths. There is a bimodal distribution within the pediatric TBI population, with peaks in both toddlers and adolescents. Preclinical TBI research provides evidence for age differences in acute pathophysiology that likely contribute to long-term outcome differences between age groups. This review will examine the timecourse of acute pathophysiological processes during cerebral maturation, including calcium accumulation, glucose metabolism and cerebral blood flow. Consequences of pediatric TBI are complicated by the ongoing maturational changes allowing for substantial plasticity and windows of vulnerabilities. This review will also examine the timecourse of later outcomes after mild, repeat mild and more severe TBI to establish developmental windows of susceptibility and altered maturational trajectories. Research progress for pediatric TBI is critically important to reveal age-associated mechanisms and to determine knowledge gaps for future studies.
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Affiliation(s)
- Rebecka O Serpa
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Lindsay Ferguson
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Cooper Larson
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Julie Bailard
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Samantha Cooke
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Tiffany Greco
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
| | - Mayumi L Prins
- Department of Neurosurgery, Brain Injury Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States.,Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, CA, United States
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21
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Vakhtin AA, Zhang Y, Wintermark M, Ashford JW, Furst AJ. Distant histories of mild traumatic brain injury exacerbate age-related differences in white matter properties. Neurobiol Aging 2021; 107:30-41. [PMID: 34371285 DOI: 10.1016/j.neurobiolaging.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
We examined associations of distant histories of mild traumatic brain injury (mTBI) with non-linear and linear trajectories of white matter (WM) properties across a wide age range (23-77). Diffusion tensor imaging (DTI) data obtained from 171 Veterans with histories of clinically diagnosed mTBIs and 115 controls were subjected to tractography, isolating 20 major WM tracts. Non-linear and linear effects of age on each tract's diffusion properties were examined in terms of their interactions with group (mTBI and control). The non-linear model revealed 7 tracts in which the mTBI group's DTI metrics rapidly deviated from control trajectories in middle and late adulthoods, despite the injuries having occurred in the late 20s, on average. In contrast, no interactions between prior injuries and age were detected when examining linear trajectories. Distant mTBIs may thus accelerate normal age-related trajectories of WM degeneration much later in life. As such, life-long histories of head trauma should be assessed in all patients in their mid-to-late adulthoods, whether neurologically healthy or presenting with seemingly unrelated neuropathology.
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Affiliation(s)
- Andrei A Vakhtin
- The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM, USA.
| | - Yu Zhang
- War Related Illness and Injury Study Center (WRIISC), Palo Alto Veterans Affairs Hospital, Palo Alto, CA, USA
| | - Max Wintermark
- Neuroradiology, Stanford University School of Medicine, Stanford, CA, USA
| | - John W Ashford
- War Related Illness and Injury Study Center (WRIISC), Palo Alto Veterans Affairs Hospital, Palo Alto, CA, USA; Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Ansgar J Furst
- War Related Illness and Injury Study Center (WRIISC), Palo Alto Veterans Affairs Hospital, Palo Alto, CA, USA; Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA, USA; Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA; Polytrauma System of Care, Palo Alto Veterans Affairs Hospital, Palo Alto, CA, USA
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22
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Cognitive Reserve in Individuals Aging With Traumatic Brain Injury: Independent and Interactive Effects on Cognitive Functioning. J Head Trauma Rehabil 2021; 37:E196-E205. [PMID: 34145164 DOI: 10.1097/htr.0000000000000697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To examine the influence of 2 temporal factors-age and injury chronicity-on the relationship between cognitive reserve (CR) and cognitive functioning in older adults with chronic traumatic brain injury (TBI). SETTING Outpatient research laboratory. PARTICIPANTS Adults, 50 years or older, with a 1- to 45-year history of moderate or severe TBI (N = 108). DESIGN Cross-sectional observational study. MAIN MEASURES CR was estimated using demographically corrected performance on a word-reading test (an approximation of premorbid IQ). Injury chronicity was operationalized as number of years since the date of injury. Composite cognitive scores were computed from performances on neuropsychological tests of processing speed, executive functioning, and memory. RESULTS CR was positively and significantly related to all cognitive performances independent of age, injury chronicity, and injury severity. Greater injury chronicity significantly attenuated the effect of CR on processing speed such that individuals more distal from their injury date evidenced a weaker positive relationship between CR and performance. CONCLUSION Temporal factors may modify associations between CR and cognition. Findings suggest that the protective effects of CR are temporally delimited, potentially contending with declines in brain reserve. The prognostic value of traditional outcome determinants should be considered in the context of injury chronicity.
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23
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Neuroprotective Effects of Coffee Bioactive Compounds: A Review. Int J Mol Sci 2020; 22:ijms22010107. [PMID: 33374338 PMCID: PMC7795778 DOI: 10.3390/ijms22010107] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023] Open
Abstract
Coffee is one of the most widely consumed beverages worldwide. It is usually identified as a stimulant because of a high content of caffeine. However, caffeine is not the only coffee bioactive component. The coffee beverage is in fact a mixture of a number of bioactive compounds such as polyphenols, especially chlorogenic acids (in green beans) and caffeic acid (in roasted coffee beans), alkaloids (caffeine and trigonelline), and the diterpenes (cafestol and kahweol). Extensive research shows that coffee consumption appears to have beneficial effects on human health. Regular coffee intake may protect from many chronic disorders, including cardiovascular disease, type 2 diabetes, obesity, and some types of cancer. Importantly, coffee consumption seems to be also correlated with a decreased risk of developing some neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease, and dementia. Regular coffee intake may also reduce the risk of stroke. The mechanism underlying these effects is, however, still poorly understood. This review summarizes the current knowledge on the neuroprotective potential of the main bioactive coffee components, i.e., caffeine, chlorogenic acid, caffeic acid, trigonelline, kahweol, and cafestol. Data from both in vitro and in vivo preclinical experiments, including their potential therapeutic applications, are reviewed and discussed. Epidemiological studies and clinical reports on this matter are also described. Moreover, potential molecular mechanism(s) by which coffee bioactive components may provide neuroprotection are reviewed.
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24
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Chia YC, Anjum CE, Yee HR, Kenisi Y, Chan MKS, Wong MBF, Pan SY. Stem Cell Therapy for Neurodegenerative Diseases: How Do Stem Cells Bypass the Blood-Brain Barrier and Home to the Brain? Stem Cells Int 2020; 2020:8889061. [PMID: 32952573 PMCID: PMC7487096 DOI: 10.1155/2020/8889061] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/11/2020] [Accepted: 08/20/2020] [Indexed: 01/14/2023] Open
Abstract
Blood-brain barrier (BBB) is a term describing the highly selective barrier formed by the endothelial cells (ECs) of the central nervous system (CNS) homeostasis by restricting movement across the BBB. An intact BBB is critical for normal brain functions as it maintains brain homeostasis, modulates immune cell transport, and provides protection against pathogens and other foreign substances. However, it also prevents drugs from entering the CNS to treat neurodegenerative diseases. Stem cells, on the other hand, have been reported to bypass the BBB and successfully home to their target in the brain and initiate repair, making them a promising approach in cellular therapy, especially those related to neurodegenerative disease. This review article discusses the mechanism behind the successful homing of stem cells to the brain, their potential role as a drug delivery vehicle, and their applications in neurodegenerative diseases.
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Affiliation(s)
- Yvonne Cashinn Chia
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Clarice Evey Anjum
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Hui Rong Yee
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Yenny Kenisi
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Mike K. S. Chan
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Michelle B. F. Wong
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
| | - Shing Yi Pan
- Baden R&D Laboratories GmbH, Germany
- Baden Research and Testing (Asia Pac) Sdn Bhd, Malaysia
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25
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Sagiraju HKR, Živković S, VanCott AC, Patwa H, Gimeno Ruiz de Porras D, Amuan ME, Pugh MJV. Amyotrophic Lateral Sclerosis Among Veterans Deployed in Support of Post-9/11 U.S. Conflicts. Mil Med 2019; 185:e501-e509. [PMID: 31642489 PMCID: PMC8921606 DOI: 10.1093/milmed/usz350] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Amyotrophic lateral sclerosis (ALS) is a recognized military service-connected condition. Prior prevalence studies of ALS among U.S. war Veterans were not able to address concerns related to neurodegenerative sequelae of traumatic brain injury (TBI) and disregarded risk heterogeneity from occupational categories within service branches. MATERIALS AND METHODS We identified the prevalence of definite and possible ALS and cumulative incidence of definite ALS among Post-9/11 U.S. Veterans deployed in support of Post-9/11 conflicts (mean age 36.3) who received care in the Veterans Health Administration during fiscal years 2002-2015. Using a case-control study design, we also evaluated the association of TBI and major military occupation groups with ALS adjusting for demographics and comorbidities. RESULTS The prevalence of ALS was 19.7 per 100,000 over 14 years. Both prevalence and cumulative incidence of definite ALS were significantly higher among Air Force personnel compared to other service branches and among tactical operation officers and health care workers compared to general and administrative officers. Neither TBI nor younger age (<45 years) was associated with ALS. Depression, cardiac disease, cerebrovascular disease, high blood pressure, and obstructive sleep apnea were clinical comorbidities significantly associated with ALS in this population of Veterans. CONCLUSION This study among a cohort of relatively young Veterans showed a high ALS prevalence, suggesting an early onset of ALS among deployed military service members. The higher prevalence among some military specific occupations highlights the need to determine which occupational exposures specific to these occupations (particularly, Air Force personnel, tactical operations officers, and health care workers) might be associated with early onset ALS.
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Affiliation(s)
- Hari Krishna Raju Sagiraju
- Informatics, Decision-Enhancement and Analytic Sciences Center, VA Salt Lake City Health Care System, 500 Foothill Drive Bldg. 182, Salt Lake City, UT 84148,Division of Epidemiology, University of Utah, 383 Colorow Dr, Suite203, Salt Lake City, UT 84108
| | - Sasa Živković
- Department of Neurology, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA 15213
| | - Anne C VanCott
- Department of Neurology, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA 15213,Department of Neurology, VA Pittsburgh Health Care System, 4100 Allequippa St, Pittsburgh, PA 15213
| | - Huned Patwa
- VA Neurology Service, VA Connecticut Health Care System, 950 Campbell Avenue, West Haven, CT 06516
| | - David Gimeno Ruiz de Porras
- Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas Health Science Center at Houston, School of Public Health in San Antonio, 7411 John Smith Dr #1100, San Antonio, TX 78229
| | - Megan E Amuan
- Informatics, Decision-Enhancement and Analytic Sciences Center, VA Salt Lake City Health Care System, 500 Foothill Drive Bldg. 182, Salt Lake City, UT 84148
| | - Mary Jo V Pugh
- Informatics, Decision-Enhancement and Analytic Sciences Center, VA Salt Lake City Health Care System, 500 Foothill Drive Bldg. 182, Salt Lake City, UT 84148,Division of Epidemiology, University of Utah, 383 Colorow Dr, Suite203, Salt Lake City, UT 84108
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26
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Sullivan DR, Logue MW, Wolf EJ, Hayes JP, Salat DH, Fortier CB, Fonda JR, McGlinchey RE, Milberg WP, Miller MW. Close-Range Blast Exposure Is Associated with Altered White Matter Integrity in Apolipoprotein ɛ4 Carriers. J Neurotrauma 2019; 36:3264-3273. [PMID: 31232163 DOI: 10.1089/neu.2019.6489] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Evidence suggests that blast exposure has profound negative consequences for the health of the human brain, and that it may confer risk for the development of neurodegenerative diseases such as chronic traumatic encephalopathy and Alzheimer's disease (AD). Although the molecular mechanisms linking blast exposure to subsequent neurodegeneration is an active focus of research, recent studies suggest that genetic risk for AD may elevate the risk of neurodegeneration following traumatic brain injury (TBI). However, it is currently unknown if blast exposure also interacts with AD risk to promote neurodegeneration. In this study we examined whether apolipoprotein (APOE) ɛ4, a well-known genetic risk factor for AD, influenced the relationship between blast exposure and white matter integrity in a cohort of 200 Iraq and Afghanistan war veterans. Analyses revealed a significant interaction between close-range blast exposure (CBE) (close range being within 10 m) and APOE ɛ4 carrier status in predicting white matter abnormalities, measured by a voxelwise cluster-based method that captures spatial heterogeneity in white matter disruptions. This interaction remained significant after controlling for TBI, pointing to the specificity of CBE and APOE in white matter disruptions. Further, among veteran ɛ4 carriers exposed to close-range blast, we observed a positive association between the number of CBEs and the number of white matter abnormalities. These results raise the possibility that CBE interacts with AD genetic influences on neuropathological processes such as the degradation of white matter integrity.
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Affiliation(s)
- Danielle R Sullivan
- National Center for PTSD, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts
| | - Mark W Logue
- National Center for PTSD, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Biomedical Genetics, Boston University School of Medicine, Boston, Massachusetts.,Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Erika J Wolf
- National Center for PTSD, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts
| | - Jasmeet P Hayes
- National Center for PTSD, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts.,Neuroimaging Research for Veterans Center, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychology, The Ohio State University, Columbus, Ohio
| | - David H Salat
- Neuroimaging Research for Veterans Center, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Anthinoula A. Martinos Center for Biomedical Imaging, Charlestown, Massachusetts
| | - Catherine B Fortier
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
| | - Jennifer R Fonda
- Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts.,Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
| | - Regina E McGlinchey
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
| | - William P Milberg
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
| | - Mark W Miller
- National Center for PTSD, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, Massachusetts.,Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts
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27
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Li Y, Liao C, Tjong SC. Electrospun Polyvinylidene Fluoride-Based Fibrous Scaffolds with Piezoelectric Characteristics for Bone and Neural Tissue Engineering. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E952. [PMID: 31261995 PMCID: PMC6669491 DOI: 10.3390/nano9070952] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/14/2019] [Accepted: 06/15/2019] [Indexed: 02/07/2023]
Abstract
Polyvinylidene fluoride (PVDF) and polyvinylidene fluoride-trifluoroethylene (P(VDF-TrFE) with excellent piezoelectricity and good biocompatibility are attractive materials for making functional scaffolds for bone and neural tissue engineering applications. Electrospun PVDF and P(VDF-TrFE) scaffolds can produce electrical charges during mechanical deformation, which can provide necessary stimulation for repairing bone defects and damaged nerve cells. As such, these fibrous mats promote the adhesion, proliferation and differentiation of bone and neural cells on their surfaces. Furthermore, aligned PVDF and P(VDF-TrFE) fibrous mats can enhance neurite growth along the fiber orientation direction. These beneficial effects derive from the formation of electroactive, polar β-phase having piezoelectric properties. Polar β-phase can be induced in the PVDF fibers as a result of the polymer jet stretching and electrical poling during electrospinning. Moreover, the incorporation of TrFE monomer into PVDF can stabilize the β-phase without mechanical stretching or electrical poling. The main drawbacks of electrospinning process for making piezoelectric PVDF-based scaffolds are their small pore sizes and the use of highly toxic organic solvents. The small pore sizes prevent the infiltration of bone and neuronal cells into the scaffolds, leading to the formation of a single cell layer on the scaffold surfaces. Accordingly, modified electrospinning methods such as melt-electrospinning and near-field electrospinning have been explored by the researchers to tackle this issue. This article reviews recent development strategies, achievements and major challenges of electrospun PVDF and P(VDF-TrFE) scaffolds for tissue engineering applications.
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Affiliation(s)
- Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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28
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Mischoulon D. Commentary on "Accelerated DNA Methylation Aging in U.S. Military Veterans: Results From the National Health and Resilience in Veterans Study". Am J Geriatr Psychiatry 2019; 27:533-535. [PMID: 30770185 DOI: 10.1016/j.jagp.2019.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 01/12/2019] [Indexed: 11/29/2022]
Affiliation(s)
- David Mischoulon
- Department of Psychiatry (DM), Depression Clinical and Research Program, Massachusetts General Hospital, Boston; Department of Psychiatry (DM), Harvard Medical School, Boston.
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29
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Fraunberger EA, Shutt TE, Esser MJ. Sex-dependent and chronic alterations in behavior and mitochondrial function in a rat model of pediatric mild traumatic brain injury. Brain Inj 2019; 33:534-542. [PMID: 30663413 DOI: 10.1080/02699052.2019.1565898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To determine if chronic changes in mitochondrial function occur following a mild traumatic brain injury in young rats. RESEARCH DESIGN Closed-head, weight drop model was used to cause mTBI by applying rotational forces to the brain without surgery. Behavioral battery was used to assess multiple dimensions of impairment across time. Analysis of brain tissue carried out at three-weeks post-injury represents a chronic time point to complement previous work examining acute time points. METHODS AND PROCEDURES Twenty-three male and 22 female rats one month of age were divided equally into sham and mTBI groups with the latter undergoing the weight drop. Multiple behavioral tests in combination with energetic (oxygen consumption), molecular (immunoblotting), and imaging (electron microscopy) characterization of brain mitochondria were performed. MAIN OUTCOMES AND RESULTS Mitochondria isolated from sham juvenile female rats had higher basal oxygen consumption compared to juvenile male rats (514.875 ± 171.091 pmol/min vs. 267 ± 73.906 pmol/min, p < 0.0001). Chronic sex-dependent differences were observed in females after mTBI in basal (514.875 ± 171.091 pmol/min vs. 600.688 ± 124.422 pmol/min, p = 0.0264) and maximal oxygen consumption (298.938 ± 119.964 pmol/min vs. 403.281 ± 112.922 pmol/min, p = 0.0001) and proton leak (59.46 ± 7.807 vs. 84.32 ± 5.80 pmol/min, p = 0.0001). CONCLUSIONS The juvenile rat brain displays sex differences in mitochondrial function at (1) baseline and (2) in long-term outcomes after mTBI. These results offer new insight into a potential mechanism for persistent, individualized impairments following pediatric mTBI.
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Affiliation(s)
- Erik A Fraunberger
- a Hotchkiss Brain Institute , University of Calgary , Calgary , Alberta , Canada.,b Alberta Children's Hospital Research Institute , University of Calgary , Calgary , Alberta , Canada
| | - Timothy E Shutt
- b Alberta Children's Hospital Research Institute , University of Calgary , Calgary , Alberta , Canada.,c Department of Medical Genetics , University of Calgary , Calgary , Alberta , Canada.,d Department of Biochemistry & Molecular Biology , University of Calgary , Calgary , Alberta , Canada
| | - Michael J Esser
- b Alberta Children's Hospital Research Institute , University of Calgary , Calgary , Alberta , Canada.,e Department of Pediatrics , University of Calgary , Calgary , Alberta , Canada
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30
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Martucci A, Cesareo M, Nucci C, Mancino R. Macular ganglion cells alteration in a patient with left homonymous hemianopia subsequent to surgical excision of an arteriovenous malformation. Am J Ophthalmol Case Rep 2018; 12:9-14. [PMID: 30105312 PMCID: PMC6085272 DOI: 10.1016/j.ajoc.2018.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/30/2018] [Accepted: 07/30/2018] [Indexed: 11/17/2022] Open
Abstract
Purpose To report the case of a 57 years old woman who showed a macular ganglion cell complex (GCC), that is a combination of ganglion cell layer and inner plexiform layer, and peripapillary Retinal Nerve Fiber Layer (pRNFL) thickness reduction in association with left homonymous hemianopia subsequent to surgical excision of an arteriovenous malformation in the cerebral right occipital lobe 37 years before. Observations One patient with left homonymous hemianopia due to surgical excision of an arteriovenous malformation in the right cerebral occipital lobe came to our attention for transient blurred vision.Measurement of the GCC and pRNFL thickness was performed using spectral domain optical coherence tomography (SDOCT; Cirrus HD-OCT model 400). Visual field (VF) defects were assessed using Humphrey field analyzer using the central 30-2 Swedish Interactive Threshold Algorithm (SITA) program with appropriate trial lenses (Humphrey Field Analyzer II, Carl Zeiss Meditech, Inc, Dublin, California).The average pRNFL thickness was bilaterally reduced, showing a symmetry value of 39%. The patients showed a significant GCC thinning in the projecting sector of the retina mapping to the brain lesion. Corresponding VF defects were found. Conclusions and importance These findings show SDOCT potentials in the field of neuro-ophthalmology, supporting the usefulness of GCC thickness as a possible imaging marker before and after brain surgery, and, possibly, in the diagnosis of neurodegenerative conditions.
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Affiliation(s)
- Alessio Martucci
- Corresponding author. Ophthalmology Unit, Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy.
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31
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Akintunde JK, Irondi AE, Ajani EO, Olayemi TV. Neuroprotective effect of dietary black seed flour on key enzymes linked with neuronal signaling molecules in rats exposed to mixture of environmental metals. J Food Biochem 2018. [DOI: 10.1111/jfbc.12573] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- J. K. Akintunde
- Toxicology and Safety Unit, Faculty of Public Health, College of Medicine, Department of Environmental Health Sciences; University of Ibadan; Inadan Nigeria
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - A. E. Irondi
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - E. O. Ajani
- Department of Biochemistry, School of Basic Medical Sciences, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
| | - T. V. Olayemi
- Chemistry Unit, Department of Chemical, Physical and Geological, College of Pure and Applied Sciences; Kwara State University; Malete P.M.B 1530 Nigeria
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32
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33
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De Kegel D, Vastmans J, Fehervary H, Depreitere B, Vander Sloten J, Famaey N. Biomechanical characterization of human dura mater. J Mech Behav Biomed Mater 2018; 79:122-134. [DOI: 10.1016/j.jmbbm.2017.12.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/08/2017] [Accepted: 12/22/2017] [Indexed: 11/24/2022]
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34
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Qin H, Qin J, Hu J, Huang H, Ma L. Malva Sylvestris Attenuates Cognitive Deficits in a Repetitive Mild Traumatic Brain Injury Rat Model by Reducing Neuronal Degeneration and Astrocytosis in the Hippocampus. Med Sci Monit 2017; 23:6099-6106. [PMID: 29276216 PMCID: PMC5749139 DOI: 10.12659/msm.905429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background The aim of our study was to evaluate the effect of Malva sylvestris (MS) on cognitive dysfunction in a repetitive mild traumatic brain injury (MTBI). Material/Methods MTBI was induced in all the study animals by hitting a metallic pendulum near the parietal-occipital area of the skull three times a day for ten days. Animals were treated with MS (250 mg/kg and 500 mg/kg) intragastrically per day for seven consecutive days. Cognitive function was estimated by the Morris water maze (MWM) method. Histopathology studies were performed on the hippocampal region by Nissl staining and anti GFAP staining. Concentrations of reactive oxygen species (ROS), and oxidative parameters including superoxide dismutase (SOD), catalase (CAT), and lipid peroxidation (LPO), and inflammatory cytokines in the brain tissues were measured. Result Treatment with MS significantly improved cognitive function compared to the negative control. Histopathology studies suggested that treatment with MS significantly decreased (p<0.01) the count of neurodegenerative cells and induction of astrocytosis in the MTBI treated group compared to the negative control group. However, the concentrations of ROS and LPO, and the activities of SOD and CAT were significantly decreased in the MS treated groups of MTBI rats compared to the negative control group. Inflammatory cytokines, such as IL-1β, IL6, and TNF-α were significantly decreased (p<0.01) in the brain tissues of the MTBI treated group compared to the control group of rats. Conclusions This study concluded that treatment with MS significantly improved cognitive dysfunction by reducing neurodegeneration and astrocytosis in brain tissues via decreasing oxidative stress and inflammation in neuronal cells.
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Affiliation(s)
- Hailin Qin
- Department of Neurosurgery, Southern Medical University, Guangzhou, Guangdong, China (mainland).,Department of Neurosurgery, Wuhan General Hospital of PLA, Wuhan, Hubei, China (mainland)
| | - Jie Qin
- Department of Neurosurgery, Wuhan General Hospital of PLA, Wuhan, Hubei, China (mainland)
| | - Junmin Hu
- Department of Neurosurgery, Wuhan General Hospital of PLA, Wuhan, Hubei, China (mainland)
| | - He Huang
- Department of Neurosurgery, Wuhan General Hospital of PLA, Wuhan, Hubei, China (mainland)
| | - Lianting Ma
- Department of Neurosurgery, Southern Medical University, Guangzhou, Guangdong, China (mainland).,Department of Neurosurgery, Wuhan General Hospital of PLA, Wuhan, Hubei, China (mainland)
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Abstract
Conventional imaging findings in patients with cerebral concussion and chronic traumatic encephalopathy are absent or subtle in the majority of cases. The most common abnormalities include cerebral volume loss, enlargement of the cavum of the septum pellucidum, cerebral microhemorrhages, and white matter signal abnormalities, all of which have poor sensitivity and specificity. Advanced imaging modalities, such as diffusion tensor imaging (DTI), blood oxygen level dependent functional MR Imaging (BOLD fMRI), MR spectroscopy, perfusion imaging, positron emission tomography (PET), single photon emission computed tomography (SPECT), and magnetoencephalography detect physiologic abnormalities in symptomatic patients and, although currently in the investigation phase, may become useful in the clinical arena.
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Affiliation(s)
- Eliana Bonfante
- Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston, McGovern Medical School, 6431 Fannin Street MSB 2130B, Houston, TX 77030, USA.
| | - Roy Riascos
- Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston, McGovern Medical School, 6431 Fannin Street MSB 2130B, Houston, TX 77030, USA
| | - Octavio Arevalo
- Department of Diagnostic and Interventional Imaging, The University of Texas Health Science Center at Houston, McGovern Medical School, 6431 Fannin Street MSB 2130B, Houston, TX 77030, USA
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36
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Liska MG, Dela Peña I. Granulocyte-colony stimulating factor and umbilical cord blood cell transplantation: Synergistic therapies for the treatment of traumatic brain injury. Brain Circ 2017; 3:143-151. [PMID: 30276316 PMCID: PMC6057694 DOI: 10.4103/bc.bc_19_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 08/31/2017] [Accepted: 09/05/2017] [Indexed: 02/06/2023] Open
Abstract
Traumatic brain injury (TBI) is now characterized as a progressive, degenerative disease and continues to stand as a prevalent cause of death and disability. The pathophysiology of TBI is complex, with a variety of secondary cell death pathways occurring which may persist chronically following the initial cerebral insult. Current therapeutic options for TBI are minimal, with surgical intervention or rehabilitation therapy existing as the only viable treatments. Considering the success of stem-cell therapies in various other neurological diseases, their use has been proposed as a potential potent therapy for patients suffering TBI. Moreover, stem cells are highly amenable to adjunctive use with other therapies, providing an opportunity to overcome the inherent limitations of using a single therapeutic agent. Our research has verified this additive potential by demonstrating the efficacy of co-delivering human umbilical cord blood (hUCB) cells with granulocyte-colony stimulating factor (G-CSF) in a murine model of TBI, providing encouraging results which support the potential of this approach to treat patients suffering from TBI. These findings justify ongoing research toward uncovering the mechanisms which underlie the functional improvements exhibited by hUCB + G-CSF combination therapy, thereby facilitating its safe and effect transition into the clinic. This paper is a review article. Referred literature in this paper has been listed in the reference section. The datasets supporting the conclusions of this article are available online by searching various databases, including PubMed. Some original points in this article come from the laboratory practice in our research center and the authors’ experiences.
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Affiliation(s)
- Michael G Liska
- Center of Excellence for Aging and Brain Repair, Tampa, FL 33612, USA
| | - Ike Dela Peña
- Department of Pharmaceutical and Administrative Sciences, School of Pharmacy, College of Pharmacy, Loma Linda University, Loma Linda, CA, USA
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37
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Esopenko C, Chow TW, Tartaglia MC, Bacopulos A, Kumar P, Binns MA, Kennedy JL, Müller DJ, Levine B. Cognitive and psychosocial function in retired professional hockey players. J Neurol Neurosurg Psychiatry 2017; 88:512-519. [PMID: 28396361 DOI: 10.1136/jnnp-2016-315260] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE The relationship between repeated concussions and neurodegenerative disease has received significant attention, particularly research in postmortem samples. Our objective was to characterise retired professional ice hockey players' cognitive and psychosocial functioning in relation to concussion exposure and apolipoprotein ε4 status. METHODS Alumni athletes (N=33, aged 34-71 years) and an age-matched sample of comparison participants (N=18) were administered measures of cognitive function and questionnaires concerning psychosocial and psychiatric functioning. RESULTS No significant group differences were found on neuropsychological measures of speeded attention, verbal memory or visuospatial functions, nor were significant differences observed on computerised measures of response speed, inhibitory control and visuospatial problem solving. Reliable group differences in cognitive performance were observed on tests of executive and intellectual function; performance on these measures was associated with concussion exposure. Group differences were observed for cognitive, affective and behavioural impairment on psychosocial questionnaires and psychiatric diagnoses. There was no evidence of differential effects associated with age in the alumni athletes. Possession of an apolipoprotein ε4 allele was associated with increased endorsement of psychiatric complaints, but not with objective cognitive performance. CONCLUSIONS We found only subtle objective cognitive impairment in alumni athletes in the context of high subjective complaints and psychiatric impairment. Apolipoprotein ε4 status related to psychiatric, but not cognitive status. These findings provide benchmarks for the degree of cognitive and behavioural impairment in retired professional athletes and a point of comparison for future neuroimaging and longitudinal studies.
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Affiliation(s)
- Carrie Esopenko
- Baycrest Health Sciences, Rotman Research Institute, Toronto, Canada.,Department of Rehabilitation and Movement Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Tiffany W Chow
- University of Southern California, Los Angeles, California, USA
| | - Maria Carmela Tartaglia
- Tanz Centre for Research in Neurodegenerative Disease, University of Toronto, Toronto, Canada.,Division of Neurology, Krembil Neuroscience Centre, Toronto, Canada
| | - Agnes Bacopulos
- Baycrest Health Sciences, Rotman Research Institute, Toronto, Canada
| | - Priya Kumar
- Baycrest Health Sciences, Rotman Research Institute, Toronto, Canada.,Centre for Addiction and Mental Health (CAMH), Toronto, Ontario, Canada
| | - Malcolm A Binns
- Baycrest Health Sciences, Rotman Research Institute, Toronto, Canada.,University of Toronto, Toronto, Canada
| | - James L Kennedy
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Daniel J Müller
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Brian Levine
- Baycrest Health Sciences, Rotman Research Institute, Toronto, Canada.,University of Toronto, Toronto, Canada
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38
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Tate DF, Wade BSC, Velez CS, Drennon AM, Bolzenius J, Gutman BA, Thompson PM, Lewis JD, Wilde EA, Bigler ED, Shenton ME, Ritter JL, York GE. Volumetric and shape analyses of subcortical structures in United States service members with mild traumatic brain injury. J Neurol 2016; 263:2065-79. [PMID: 27435967 PMCID: PMC5564450 DOI: 10.1007/s00415-016-8236-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 07/07/2016] [Accepted: 07/08/2016] [Indexed: 10/21/2022]
Abstract
Mild traumatic brain injury (mTBI) is a significant health concern. The majority who sustain mTBI recover, although ~20 % continue to experience symptoms that can interfere with quality of life. Accordingly, there is a critical need to improve diagnosis, prognostic accuracy, and monitoring (recovery trajectory over time) of mTBI. Volumetric magnetic resonance imaging (MRI) has been successfully utilized to examine TBI. One promising improvement over standard volumetric approaches is to analyze high-dimensional shape characteristics of brain structures. In this study, subcortical shape and volume in 76 Service Members with mTBI was compared to 59 Service Members with orthopedic injury (OI) and 17 with post-traumatic stress disorder (PTSD) only. FreeSurfer was used to quantify structures from T1-weighted 3 T MRI data. Radial distance (RD) and Jacobian determinant (JD) were defined vertex-wise on parametric mesh-representations of subcortical structures. Linear regression was used to model associations between morphometry (volume and shape), TBI status, and time since injury (TSI) correcting for age, sex, intracranial volume, and level of education. Volumetric data was not significantly different between the groups. JD was significantly increased in the accumbens and caudate and significantly reduced in the thalamus of mTBI participants. Additional significant associations were noted between RD of the amygdala and TSI. Positive trend-level associations between TSI and the amygdala and accumbens were observed, while a negative association was observed for third ventricle. Our findings may aid in the initial diagnosis of mTBI, provide biological targets for functional examination, and elucidate regions that may continue remodeling after injury.
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Affiliation(s)
- David F Tate
- Missouri Institute of Mental Health, University of Missouri, St. Louis, 4633 World Parkway Circle, Berkeley, MO, 63134-3115, USA.
- Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX, USA.
| | - Benjamin S C Wade
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - Carmen S Velez
- Missouri Institute of Mental Health, University of Missouri, St. Louis, 4633 World Parkway Circle, Berkeley, MO, 63134-3115, USA
| | - Ann Marie Drennon
- Defense and Veterans Brain Injury Centers, San Antonio Military Medical Center, San Antonio, TX, USA
| | - Jacob Bolzenius
- Missouri Institute of Mental Health, University of Missouri, St. Louis, 4633 World Parkway Circle, Berkeley, MO, 63134-3115, USA
| | - Boris A Gutman
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - Paul M Thompson
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - Jeffrey D Lewis
- Department of Neurology, Uniformed Services University of the Health Sciences School of Medicine, Bethesda, MD, USA
| | - Elisabeth A Wilde
- Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX, USA
- Michael E. DeBakey VA Medical Center, Houston, TX, USA
| | - Erin D Bigler
- Departments of Psychology and Neuroscience, Brigham Young University, Provo, UT, USA
| | - Martha E Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry and Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Brockton Division, VA Boston Healthcare System, Brockton, MA, USA
| | - John L Ritter
- Department of Radiology, Brooke Army Medical Center, San Antonio, TX, USA
| | - Gerald E York
- Alaska Radiology Associates, TBI Imaging and Research, Anchorage, AK, USA
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39
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Abstract
Traumatic brain injury (TBI) has come to the forefront of both the scientific and popular culture. Specifically, sports-related concussions or mild TBI (mTBI) has become the center of scientific scrutiny with a large amount of research focusing on the long-term sequela of this type of injury. As the populace continues to age, the impact of TBI on the aging brain will become clearer. Currently, reports have come to light that link TBI to neurodegenerative disorders such as Alzheimer's and Parkinson's diseases, as well as certain psychiatric diseases. Whether these associations are causations, however, is yet to be determined. Other long-term sequelae, such as chronic traumatic encephalopathy (CTE), appear to be associated with repetitive injuries. Going forward, as we gain better understanding of the pathophysiological process involved in TBI and subclinical head traumas, and individual traits that influence susceptibility to neurocognitive diseases, a clearer, more comprehensive understanding of the connection between brain injury and resultant disease processes in the aging brain will become evident.
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40
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Chronic Traumatic Encephalopathy and Traumatic Brain Injury: Bridging Pathology, Function, and Prognosis. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2015. [DOI: 10.1007/s40141-015-0089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Bruce ED, Konda S, Dean DD, Wang EW, Huang JH, Little DM. Neuroimaging and traumatic brain injury: State of the field and voids in translational knowledge. Mol Cell Neurosci 2015; 66:103-13. [DOI: 10.1016/j.mcn.2015.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 03/24/2015] [Accepted: 03/25/2015] [Indexed: 01/07/2023] Open
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