1
|
Gan S, Sun Y, Liu K, Jia X, Li X, Zhang M, Bai L. APOE ε4 allele status modulates the spatial patterns of progressive atrophy in the temporal lobes after mild traumatic brain injury. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2024; 16:e12550. [PMID: 38371357 PMCID: PMC10870335 DOI: 10.1002/dad2.12550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/12/2024] [Accepted: 01/18/2024] [Indexed: 02/20/2024]
Abstract
INTRODUCTION We evaluated how the apolipoprotein E (APOE) ε4 allele modulated the spatial patterns of longitudinal atrophy in the Alzheimer's disease-vulnerable brain areas of patients with mild traumatic brain injury (mTBI) from the acute to chronic phase post injury. METHODS Fifty-nine adult patients with acute mTBI and 48 healthy controls with APOE ε4 allele testing underwent T1-weighted magnetic resonance imaging and neuropsychological assessments with 6 to 12 months of follow-up. Progressive brain volume loss was compared voxel-wise in the temporal lobes. RESULTS Patients with the APOE ε4 allele presented significant longitudinal atrophy in the left superior and middle temporal gyri, where the progressive gray matter volume loss predicted longitudinal impairment in language fluency, whereas mTBI APOE ε4 allele noncarriers showed mainly significant longitudinal atrophy in the medial temporal lobes, without significant neuropsychological relevance. DISCUSSION The atrophy progression observed in mTBI patients with the APOE ε4 allele may increase the possibility of developing a specific phenotype of Alzheimer's disease with language dysfunction. Highlights The apolipoprotein E (APOE) ε4 allele and mild traumatic brain injury (mTBI) are risk factors for Alzheimer's disease (AD) progression.It is unclear how the interaction of mTBI with the APOE ε4 allele impacts the progressive atrophy topography in AD-vulnerable brain regions.In this study, patients with the APOE ε4 allele showed progressive atrophy patterns similar to the early stage of logopenic variant of primary progressive aphasia (lvPPA) phenotype of AD. APOE ε4 allele carriers with mTBI history may be at the risk of developing a given AD phenotype with language dysfunction.
Collapse
Affiliation(s)
- Shuoqiu Gan
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and TechnologyXi'an Jiaotong UniversityXi'anChina
- Institute of Artificial IntelligenceHefei Comprehensive National Science CenterHefeiChina
- Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiChina
- Department of Medical Imagingthe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Yingxiang Sun
- Department of Medical Imagingthe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Kejia Liu
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and TechnologyXi'an Jiaotong UniversityXi'anChina
| | - Xiaoyan Jia
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and TechnologyXi'an Jiaotong UniversityXi'anChina
| | - Xuan Li
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and TechnologyXi'an Jiaotong UniversityXi'anChina
| | - Ming Zhang
- Department of Medical Imagingthe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Lijun Bai
- The Key Laboratory of Biomedical Information Engineering, Ministry of Education, Department of Biomedical Engineering, School of Life Science and TechnologyXi'an Jiaotong UniversityXi'anChina
| |
Collapse
|
2
|
Wang KK, Munoz Pareja JC, Mondello S, Diaz-Arrastia R, Wellington C, Kenney K, Puccio AM, Hutchison J, McKinnon N, Okonkwo DO, Yang Z, Kobeissy F, Tyndall JA, Büki A, Czeiter E, Pareja Zabala MC, Gandham N, Berman R. Blood-based traumatic brain injury biomarkers - Clinical utilities and regulatory pathways in the United States, Europe and Canada. Expert Rev Mol Diagn 2021; 21:1303-1321. [PMID: 34783274 DOI: 10.1080/14737159.2021.2005583] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Traumatic brain injury (TBI) is a major global health issue, resulting in debilitating consequences to families, communities, and health-care systems. Prior research has found that biomarkers aid in the pathophysiological characterization and diagnosis of TBI. Significantly, the FDA has recently cleared both a bench-top assay and a rapid point-of-care assays of tandem biomarker (UCH-L1/GFAP)-based blood test to aid in the diagnosis mTBI patients. With the global necessity of TBI biomarkers research, several major consortium multicenter observational studies with biosample collection and biomarker analysis have been created in the USA, Europe, and Canada. As each geographical region regulates its data and findings, the International Initiative for Traumatic Brain Injury Research (InTBIR) was formed to facilitate data integration and dissemination across these consortia. AREAS COVERED This paper covers heavily investigated TBI biomarkers and emerging non-protein markers. Finally, we analyze the regulatory pathways for converting promising TBI biomarkers into approved in-vitro diagnostic tests in the United States, European Union, and Canada. EXPERT OPINION TBI biomarker research has significantly advanced in the last decade. The recent approval of an iSTAT point of care test to detect mild TBI has paved the way for future biomarker clearance and appropriate clinical use across the globe.
Collapse
Affiliation(s)
- Kevin K Wang
- Program for Neurotrauma, Neuroprotoemics & Biomarker Research, Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA.,Brain Rehabilitation Research Center (BRRC), Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA
| | - Jennifer C Munoz Pareja
- Department of Pediatric Critical Care, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Ramon Diaz-Arrastia
- Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Cheryl Wellington
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Canada
| | - Kimbra Kenney
- Department of Neurology, Uniformed Service University, Bethesda, Maryland, USA
| | - Ava M Puccio
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jamie Hutchison
- The Hospital for Sick Children, Department of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nicole McKinnon
- The Hospital for Sick Children, Department of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - David O Okonkwo
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Zhihui Yang
- Program for Neurotrauma, Neuroprotoemics & Biomarker Research, Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA.,Brain Rehabilitation Research Center (BRRC), Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA
| | - Firas Kobeissy
- Program for Neurotrauma, Neuroprotoemics & Biomarker Research, Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA.,Brain Rehabilitation Research Center (BRRC), Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA
| | - J Adrian Tyndall
- Program for Neurotrauma, Neuroprotoemics & Biomarker Research, Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
| | | | - Endre Czeiter
- Department of Neurosurgery, Pecs University, Pecs, Hungary
| | | | - Nithya Gandham
- Program for Neurotrauma, Neuroprotoemics & Biomarker Research, Department of Emergency Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Rebecca Berman
- National Institute of Neurological Disorders and Stroke, National Institute of Health, Bethesda, MD, USA
| | | |
Collapse
|
3
|
Olsen A, Babikian T, Bigler ED, Caeyenberghs K, Conde V, Dams-O'Connor K, Dobryakova E, Genova H, Grafman J, Håberg AK, Heggland I, Hellstrøm T, Hodges CB, Irimia A, Jha RM, Johnson PK, Koliatsos VE, Levin H, Li LM, Lindsey HM, Livny A, Løvstad M, Medaglia J, Menon DK, Mondello S, Monti MM, Newcombe VFJ, Petroni A, Ponsford J, Sharp D, Spitz G, Westlye LT, Thompson PM, Dennis EL, Tate DF, Wilde EA, Hillary FG. Toward a global and reproducible science for brain imaging in neurotrauma: the ENIGMA adult moderate/severe traumatic brain injury working group. Brain Imaging Behav 2021; 15:526-554. [PMID: 32797398 PMCID: PMC8032647 DOI: 10.1007/s11682-020-00313-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The global burden of mortality and morbidity caused by traumatic brain injury (TBI) is significant, and the heterogeneity of TBI patients and the relatively small sample sizes of most current neuroimaging studies is a major challenge for scientific advances and clinical translation. The ENIGMA (Enhancing NeuroImaging Genetics through Meta-Analysis) Adult moderate/severe TBI (AMS-TBI) working group aims to be a driving force for new discoveries in AMS-TBI by providing researchers world-wide with an effective framework and platform for large-scale cross-border collaboration and data sharing. Based on the principles of transparency, rigor, reproducibility and collaboration, we will facilitate the development and dissemination of multiscale and big data analysis pipelines for harmonized analyses in AMS-TBI using structural and functional neuroimaging in combination with non-imaging biomarkers, genetics, as well as clinical and behavioral measures. Ultimately, we will offer investigators an unprecedented opportunity to test important hypotheses about recovery and morbidity in AMS-TBI by taking advantage of our robust methods for large-scale neuroimaging data analysis. In this consensus statement we outline the working group's short-term, intermediate, and long-term goals.
Collapse
Affiliation(s)
- Alexander Olsen
- Department of Psychology, Norwegian University of Science and Technology, 7491, Trondheim, Norway.
- Department of Physical Medicine and Rehabilitation, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
| | - Talin Babikian
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, UCLA, Los Angeles, CA, USA
- UCLA Steve Tisch BrainSPORT Program, Los Angeles, CA, USA
| | - Erin D Bigler
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- Department of Psychology and Neuroscience Center, Brigham Young University, Provo, UT, USA
| | - Karen Caeyenberghs
- Cognitive Neuroscience Unit, School of Psychology, Deakin University, Burwood, Australia
| | - Virginia Conde
- Department of Psychology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
| | - Kristen Dams-O'Connor
- Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ekaterina Dobryakova
- Center for Traumatic Brain Injury, Kessler Foundation, East Hanover, NJ, USA
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Helen Genova
- Center for Traumatic Brain Injury, Kessler Foundation, East Hanover, NJ, USA
| | - Jordan Grafman
- Cognitive Neuroscience Laboratory, Shirley Ryan AbilityLab, Chicago, IL, USA
- Department of Physical Medicine & Rehabilitation, Neurology, Department of Psychiatry & Department of Psychology, Cognitive Neurology and Alzheimer's, Center, Feinberg School of Medicine, Weinberg, Chicago, IL, USA
| | - Asta K Håberg
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Radiology and Nuclear Medicine, St. Olavs Hopsital, Trondheim University Hospital, Trondheim, Norway
| | - Ingrid Heggland
- Section for Collections and Digital Services, NTNU University Library, Norwegian University of Science and Technology, Trondheim, Norway
| | - Torgeir Hellstrøm
- Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Oslo, Norway
| | - Cooper B Hodges
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- Department of Psychology, Brigham Young University, Provo, UT, USA
- George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Andrei Irimia
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Ruchira M Jha
- Departments of Critical Care Medicine, Neurology, Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA
- Safar Center for Resuscitation Research, Pittsburgh, PA, USA
- Clinical and Translational Science Institute, Pittsburgh, PA, USA
| | - Paula K Johnson
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- Neuroscience Center, Brigham Young University, Provo, UT, USA
| | - Vassilis E Koliatsos
- Departments of Pathology(Neuropathology), Neurology, and Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Neuropsychiatry Program, Sheppard and Enoch Pratt Hospital, Baltimore, MD, USA
| | - Harvey Levin
- H. Ben Taub Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX, USA
- Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
| | - Lucia M Li
- C3NL, Imperial College London, London, UK
- UK DRI Centre for Health Care and Technology, Imperial College London, London, UK
| | - Hannah M Lindsey
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- Department of Psychology, Brigham Young University, Provo, UT, USA
- George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Abigail Livny
- Department of Diagnostic Imaging, Sheba Medical Center, Tel-Hashomer, Ramat Gan, Israel
- Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel-Hashomer, Ramat Gan, Israel
| | - Marianne Løvstad
- Sunnaas Rehabilitation Hospital, Nesodden, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - John Medaglia
- Department of Psychology, Drexel University, Philadelphia, PA, USA
- Department of Neurology, Drexel University, Philadelphia, PA, USA
| | - David K Menon
- Division of Anaesthesia, University of Cambridge, Cambridge, UK
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, Italy
| | - Martin M Monti
- Department of Psychology, University of California Los Angeles, Los Angeles, CA, USA
- Department of Neurosurgery, Brain Injury Research Center (BIRC), UCLA, Los Angeles, CA, USA
| | | | - Agustin Petroni
- Department of Psychology, Norwegian University of Science and Technology, 7491, Trondheim, Norway
- Department of Computer Science, Faculty of Exact & Natural Sciences, University of Buenos Aires, Buenos Aires, Argentina
- National Scientific & Technical Research Council, Institute of Research in Computer Science, Buenos Aires, Argentina
| | - Jennie Ponsford
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
- Monash Epworth Rehabilitation Research Centre, Epworth Healthcare, Melbourne, Australia
| | - David Sharp
- Department of Brain Sciences, Imperial College London, London, UK
- Care Research & Technology Centre, UK Dementia Research Institute, London, UK
| | - Gershon Spitz
- Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
| | - Lars T Westlye
- Department of Psychology, University of Oslo, Oslo, Norway
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Paul M Thompson
- Imaging Genetics Center, Stevens Neuroimaging & Informatics Institute, Keck School of Medicine of USC, Marina del Rey, CA, USA
- Departments of Neurology, Pediatrics, Psychiatry, Radiology, Engineering, and Ophthalmology, USC, Los Angeles, CA, USA
| | - Emily L Dennis
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- Imaging Genetics Center, Stevens Neuroimaging & Informatics Institute, Keck School of Medicine of USC, Marina del Rey, CA, USA
| | - David F Tate
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Elisabeth A Wilde
- Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT, USA
- George E. Wahlen Veterans Affairs Medical Center, Salt Lake City, UT, USA
- H. Ben Taub Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Houston, TX, USA
| | - Frank G Hillary
- Department of Neurology, Hershey Medical Center, State College, PA, USA.
| |
Collapse
|
4
|
Johnson LW, Lundgren K, Henrich V, Phillips S. Factors influencing recovery from mild traumatic brain injury. Brain Inj 2020; 34:1202-1212. [PMID: 32705914 DOI: 10.1080/02699052.2020.1795719] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PRIMARY OBJECTIVE This study determined whether initial GCS score, head CT results, cognitive performance on IMPACT testing, or APOE genotype most effectively predicted 1-month functional outcome after mild traumatic brain injury (mTBI). This study tested the hypotheses that participants with poor performance on initial cognitive testing and those with an APOEe4 genotype would exhibit a poorer 1-month recovery after mTBI. RESEARCH DESIGN Regression analysis determined which independent variables were most effective in predicting 1-month GOS-E or DRS score. Independent t-test procedures determined whether cognitive recovery varied across APOEe4 carriers. METHODS AND PROCEDURES 49 participants admitted to the hospital with mTBI received cognitive evaluation within 48 hours after injury and again one month later. DNA analysis provided participant APOE genotype. MAIN OUTCOMES AND RESULTS Results showed that no study variables significantly predicted GOS-E or DRS scores, however, differences were identified when APOE groups were compared. Participants who were noncarriers of APOEe4 had significantly slower reaction times compared to APOEe4 carriers. Participants who were homozygous APOEe4 carriers had significantly lower instances of impulsivity than noncarriers. CONCLUSIONS Further research is needed to understand how APOE allele status and performance on initial cognitive testing may influence short-term recovery after mTBI.
Collapse
Affiliation(s)
- Leslie Weaver Johnson
- Communications Disorders Program, North Carolina Central University , Durham, North Carolina, USA
| | - Kristine Lundgren
- Department of Communication and Sciences Disorders, University of North Carolina - Greensboro , Greensboro, North Carolina, USA
| | - Vincent Henrich
- Department of Biology, University of North Carolina - Greensboro , Greensboro, North Carolina, USA
| | - Susan Phillips
- Department of Communication and Sciences Disorders, University of North Carolina - Greensboro , Greensboro, North Carolina, USA
| |
Collapse
|
5
|
Tate DF, Wilde EA, York GE, Bigler ED. Neuroimaging in Traumatic Brain Injury Rehabilitation. Concussion 2020. [DOI: 10.1016/b978-0-323-65384-8.00003-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
6
|
Bashir A, Abebe ZA, McInnes KA, Button EB, Tatarnikov I, Cheng WH, Haber M, Wilkinson A, Barron C, Diaz-Arrastia R, Stukas S, Cripton PA, Wellington CL. Increased severity of the CHIMERA model induces acute vascular injury, sub-acute deficits in memory recall, and chronic white matter gliosis. Exp Neurol 2019; 324:113116. [PMID: 31734317 DOI: 10.1016/j.expneurol.2019.113116] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/03/2019] [Accepted: 11/13/2019] [Indexed: 10/25/2022]
Abstract
Traumatic brain injury (TBI) is a leading cause of death and disability in modern societies. Diffuse axonal and vascular injury are nearly universal consequences of mechanical energy impacting the head and contribute to disability throughout the injury severity spectrum. CHIMERA (Closed Head Impact Model of Engineered Rotational Acceleration) is a non-surgical, impact-acceleration model of rodent TBI that reliably produces diffuse axonal injury characterized by white matter gliosis and axonal damage. At impact energies up to 0.7 joules, which result in mild TBI in mice, CHIMERA does not produce detectable vascular or grey matter injury. This study was designed to expand CHIMERA's capacity to induce more severe injuries, including vascular damage and grey matter gliosis. This was made possible by designing a physical interface positioned between the piston and animal's head to allow higher impact energies to be transmitted to the head without causing skull fracture. Here, we assessed interface-assisted single CHIMERA TBI at 2.5 joules in wild-type mice using a study design that spanned 6 h-60 d time points. Injured animals displayed robust acute neurological deficits, elevated plasma total tau and neurofilament-light levels, transiently increased proinflammatory cytokines in brain tissue, blood-brain barrier (BBB) leakage and microstructural vascular abnormalities, and grey matter microgliosis. Memory deficits were evident at 30 d and resolved by 60 d. Intriguingly, white matter injury was not remarkable at acute time points but evolved over time, with white matter gliosis being most extensive at 60 d. Interface-assisted CHIMERA thus enables experimental modeling of distinct endophenotypes of TBI that include acute vascular and grey matter injury in addition to chronic evolution of white matter damage, similar to the natural history of human TBI.
Collapse
Affiliation(s)
- Asma Bashir
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada; Graduate Program in Neuroscience, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| | - Zelalem A Abebe
- International Centre On Repair Discoveries, Department of Mechanical Engineering and School of Biomedical Engineering, University of British Columbia, Vancouver V5Z 1M9, BC, Canada
| | - Kurt A McInnes
- International Centre On Repair Discoveries, Department of Mechanical Engineering and School of Biomedical Engineering, University of British Columbia, Vancouver V5Z 1M9, BC, Canada
| | - Emily B Button
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| | - Igor Tatarnikov
- Graduate Program in Neuroscience, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada; Centre for Applied Neurogenetics, Department of Medical Genetics, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada
| | - Wai Hang Cheng
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada
| | - Margalit Haber
- Department of Neurology, University of Pennsylvania, 51 N 39th Street, Philadelphia, PA, USA
| | - Anna Wilkinson
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| | - Carlos Barron
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| | - Ramon Diaz-Arrastia
- Department of Neurology, University of Pennsylvania, 51 N 39th Street, Philadelphia, PA, USA.
| | - Sophie Stukas
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| | - Peter A Cripton
- International Centre On Repair Discoveries, Department of Mechanical Engineering and School of Biomedical Engineering, University of British Columbia, Vancouver V5Z 1M9, BC, Canada.
| | - Cheryl L Wellington
- Djavad Mowafaghian Centre for Brain Health, Department of Pathology and Laboratory Medicine, University of British Columbia, 2215 Wesbrook Mall, Vancouver V6T 1Z3, BC, Canada.
| |
Collapse
|
7
|
Svingos AM, Asken BM, Jaffee MS, Bauer RM, Heaton SC. Predicting long-term cognitive and neuropathological consequences of moderate to severe traumatic brain injury: Review and theoretical framework. J Clin Exp Neuropsychol 2019; 41:775-785. [DOI: 10.1080/13803395.2019.1620695] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Adrian M. Svingos
- Department of Clinical & Health Psychology, University of Florida, Gainesville, FL, USA
| | - Breton M. Asken
- Department of Clinical & Health Psychology, University of Florida, Gainesville, FL, USA
| | - Michael S. Jaffee
- Department of Neurology, University of Florida, Gainesville, FL, USA
| | - Russell M. Bauer
- Department of Clinical & Health Psychology, University of Florida, Gainesville, FL, USA
| | - Shelley C. Heaton
- Department of Clinical & Health Psychology, University of Florida, Gainesville, FL, USA
| |
Collapse
|
8
|
Tauopathy in veterans with long-term posttraumatic stress disorder and traumatic brain injury. Eur J Nucl Med Mol Imaging 2019; 46:1139-1151. [PMID: 30617964 PMCID: PMC6451714 DOI: 10.1007/s00259-018-4241-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 12/11/2018] [Indexed: 12/22/2022]
Abstract
PURPOSE Traumatic brain injury (TBI) and posttraumatic stress disorder (PTSD) have emerged as independent risk factors for an earlier onset of Alzheimer's disease (AD), although the pathophysiology underlying this risk is unclear. Postmortem studies have revealed extensive cerebral accumulation of tau following multiple and single TBI incidents. We hypothesized that a history of TBI and/or PTSD may induce an AD-like pattern of tau accumulation in the brain of nondemented war veterans. METHODS Vietnam War veterans (mean age 71.4 years) with a history of war-related TBI and/or PTSD underwent [18F]AV145 PET as part of the US Department of Defense Alzheimer's Disease Neuroimaging Initiative. Subjects were classified into the following four groups: healthy controls (n = 21), TBI (n = 10), PTSD (n = 32), and TBI+PTSD (n = 17). [18F]AV1451 reference tissue-normalized standardized uptake value (SUVr) maps, scaled to the cerebellar grey matter, were tested for differences in tau accumulation between groups using voxel-wise and region of interest approaches, and the SUVr results were correlated with neuropsychological test scores. RESULTS Compared to healthy controls, all groups showed widespread tau accumulation in neocortical regions overlapping with typical and atypical patterns of AD-like tau distribution. The TBI group showed higher tau accumulation than the other clinical groups. The extent of tauopathy was positively correlated with the neuropsychological deficit scores in the TBI+PTSD and PTSD groups. CONCLUSION A history of TBI and/or PTSD may manifest in neurocognitive deficits in association with increased tau deposition in the brain of nondemented war veterans decades after their trauma. Further investigation is required to establish the burden of increased risk of dementia imparted by earlier TBI and/or PTSD.
Collapse
|
9
|
Xu SY, Liu M, Gao Y, Cao Y, Bao JG, Lin YY, Wang Y, Luo QZ, Jiang JY, Zhong CL. Acute histopathological responses and long-term behavioral outcomes in mice with graded controlled cortical impact injury. Neural Regen Res 2019; 14:997-1003. [PMID: 30762011 PMCID: PMC6404507 DOI: 10.4103/1673-5374.250579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
While animal models of controlled cortical impact often display short-term motor dysfunction after injury, histological examinations do not show severe cortical damage. Thus, this model requires further improvement. Mice were subjected to injury at three severities using a Pin-Point™-controlled cortical impact device to establish secondary brain injury mouse models. Twenty-four hours after injury, hematoxylin-eosin staining, Fluoro-Jade B histofluorescence, and immunohistochemistry were performed for brain slices. Compared to the uninjured side, we observed differences of histopathological findings, neuronal degeneration, and glial cell number in the CA2 and CA3 regions of the hippocampus on the injured side. The Morris water maze task and beam-walking test verified long-term (14–28 days) spatial learning/memory and motor balance. To conclude, the histopathological responses were positively correlated with the degree of damage, as were the long-term behavioral manifestations after controlled cortical impact. All animal procedures were approved by the Institutional Animal Care and Use Committee at Shanghai Jiao Tong University School of Medicine.
Collapse
Affiliation(s)
- Si-Yi Xu
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University; Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Liu
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yang Gao
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Cao
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Gang Bao
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ying-Ying Lin
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yong Wang
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi-Zhong Luo
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ji-Yao Jiang
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chun-Long Zhong
- Department of Neurosurgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
10
|
Zhao S, Yu A, Wang X, Gao X, Chen J. Post-Injury Treatment of 7,8-Dihydroxyflavone Promotes Neurogenesis in the Hippocampus of the Adult Mouse. J Neurotrauma 2016; 33:2055-2064. [PMID: 26715291 DOI: 10.1089/neu.2015.4036] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Traumatic brain injury (TBI) at the moderate level of impact induces massive cell death and results in extensive dendrite degeneration in the brain, leading to persistent cognitive, sensory, and motor dysfunction. Our previous reports have shown that adult-born immature granular neurons in the dentate gyrus are the most vulnerable cell type in the hippocampus after receiving a moderate TBI with a controlled cortical impact (CCI) device. There is no effective approach to prevent immature neuron death or degeneration following TBI. Our recent study found that pretreatment of 7,8-dihydroxyflavone (DHF), a small molecule imitating brain-derived neurotrophic factor, protected immature neurons in the hippocampus from death following TBI. In the present study, we systemically treated moderate CCI-TBI mice or sham surgery mice with DHF once a day for 2 weeks via intraperitoneal injection, and then assessed the immature neurons in the hippocampus the 2nd day after the last DHF injection. We found that post-injury treatment of DHF for 2 weeks not only increased the number of adult-born immature neurons in the hippocampus, but also promoted their dendrite arborization in the injured brain following TBI. Thus, DHF may be a promising compound that can promote neurogenesis and enhance immature neuron development following TBI.
Collapse
Affiliation(s)
- Shu Zhao
- 1 Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Department of Neurosurgery, Indiana University , Indianapolis, Indiana
| | - Alex Yu
- 2 Carmel High School , Indianapolis, Indiana
| | - Xiaoting Wang
- 1 Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Department of Neurosurgery, Indiana University , Indianapolis, Indiana
| | - Xiang Gao
- 1 Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Department of Neurosurgery, Indiana University , Indianapolis, Indiana
| | - Jinhui Chen
- 1 Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, Department of Neurosurgery, Indiana University , Indianapolis, Indiana
| |
Collapse
|
11
|
Li L, Bao Y, He S, Wang G, Guan Y, Ma D, Wu R, Wang P, Huang X, Tao S, Liu Q, Wang Y, Yang J. The Association Between Apolipoprotein E and Functional Outcome After Traumatic Brain Injury: A Meta-Analysis. Medicine (Baltimore) 2015; 94:e2028. [PMID: 26579811 PMCID: PMC4652820 DOI: 10.1097/md.0000000000002028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Traumatic brain injury (TBI) is a leading cause of death and disability. Previous studies have investigated the association of apolipoprotein E (APOE) ε4 with functional outcome after TBI and reported inconsistent results.The purpose of this study was to perform a systematic literature search and conduct meta-analyses to examine whether APOE ε4 is associated with poorer functional outcome in patients with TBI.We performed a systematic literature search in PubMed, Cochrane Library, Embase, Google Scholar, and HuGE.The eligibility criteria of this study included the following: Patients had TBI; the studies reported APOE genotype data or provided odds ratios (ORs) and the corresponding 95% confidence intervals (CIs); the functional outcome was assessed using the Glasgow Outcome Scale (GOS) or the Glasgow Outcome Scale Extended (GOSE); and patients were followed for at least 3 months after TBI.In all meta-analyses, we used random-effects models to calculate the odds ratio as a measure of association. We examined the association of APOE ε4 with functional outcome at different time points after TBI.A total of 12 studies met the eligibility criteria and were included in the meta-analyses. We did not find a significant association between APOE ε4 and functional outcome at 6 (P = 0.23), 12 (P = 0.44), and 24 months (P = 0.85) after TBI. However, APOE ε4 was associated with an increased risk of unfavorable long-term (≥6 months) functional outcome after TBI (OR = 1.36, 95% CI: 1.07-1.74, P = 0.01).Limitations of this study include The sample size was limited; the initial severity of TBI varied within and across studies; we could not control for potential confounding factors, such as age at injury and sex; a meta-analysis of the genotype dosage effect was not feasible; and we could not examine the association with specific factors such as neurobehavioral or specific cognitive functions.Our meta-analysis indicates APOE ε4 is associated with the long-term functional outcome of patients with TBI. Future studies that control for confounding factors, with large sample sizes and more homogeneous initial TBI severity levels, are needed to validate the findings from this study.
Collapse
Affiliation(s)
- Lizhuo Li
- From the Department of Critical Care and Emergency Medicine, The Affiliated Hospital of Hainan Medical University, Haikou, Hainan (LL); Emergency Department, Shengjing Hospital of China Medical University (LL, SH, GW, QL); Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning (YB, YG, PW, XH, ST, YW); Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai (DM); Department of Occupational and Environmental Health, School of Public Health, Shenyang Medical College, Shenyang, Liaoning, China (RW); Rush Alzheimer's Disease Center (JY); and Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois (JY)
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
The Small-Molecule TrkB Agonist 7, 8-Dihydroxyflavone Decreases Hippocampal Newborn Neuron Death After Traumatic Brain Injury. J Neuropathol Exp Neurol 2015; 74:557-67. [PMID: 25933388 DOI: 10.1097/nen.0000000000000199] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Previous studies in rodents have shown that after a moderate traumatic brain injury (TBI) with a controlled cortical impact (CCI) device, the adult-born immature granular neurons in the dentate gyrus are the most vulnerable cell type in the hippocampus. There is no effective approach for preventing immature neuron death after TBI. We found that tyrosine-related kinase B (TrkB), a receptor of brain-derived neurotrophic factor (BDNF), is highly expressed in adult-born immature neurons. We determined that the small molecule imitating BDNF, 7, 8-dihydroxyflavone (DHF), increased phosphorylation of TrkB in immature neurons both in vitro and in vivo. Pretreatment with DHF protected immature neurons from excitotoxicity-mediated death in vitro, and systemic administration of DHF before moderate CCI injury reduced the death of adult-born immature neurons in the hippocampus 24 hours after injury. By contrast, inhibiting BDNF signaling using the TrkB antagonist ANA12 attenuated the neuroprotective effects of DHF. These data indicate that DHF may be a promising chemical compound that promotes immature neuron survival after TBI through activation of the BDNF signaling pathway.
Collapse
|
13
|
Lawrence DW, Comper P, Hutchison MG, Sharma B. The role of apolipoprotein E episilon (ɛ)-4 allele on outcome following traumatic brain injury: A systematic review. Brain Inj 2015; 29:1018-31. [DOI: 10.3109/02699052.2015.1005131] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
14
|
Plassman BL, Grafman J. Traumatic brain injury and late-life dementia. HANDBOOK OF CLINICAL NEUROLOGY 2015; 128:711-22. [DOI: 10.1016/b978-0-444-63521-1.00044-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
15
|
Grossman R, Paden CM, Fry PA, Rhodes RS, Biegon A. Persistent region-dependent neuroinflammation, NMDA receptor loss and atrophy in an animal model of penetrating brain injury. FUTURE NEUROLOGY 2012; 7:329-339. [PMID: 23539500 DOI: 10.2217/fnl.12.25] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic changes in neuroinflammation and glutamate NMDA receptors (NMDAR) have been noted in traumatic and ischemic brain injury. AIM Here we investigate the time course and regional distribution of these changes and their relationship with atrophy in a rat model of penetrating brain injury. MATERIALS METHODS Quantitative autoradiography, with the neuroinflammation marker [3H]PK11195 and the NMDAR antagonist [125I]iodoMK801, was performed on brains of animals subjected to a unilateral wireknife injury at the level of striatum and killed 3 - 60 days later. Regional atrophy was measured by morphometry. RESULTS The injury produced large increases in [3H]PK11195 binding density in cortical and septal regions adjacent to the knife track by day 7, with modest increases in the striatum. [125I]iodoMK801 binding was reduced in cor tical and hippocampal regions showing marked neuroinflammation, which showed marked atrophy at subsequent time points. CONCLUSION These results indicate that neuroinflammaton and loss of NMDAR precede and predict tissue atrophy in cortical and hippocampal regions.
Collapse
Affiliation(s)
- Rachel Grossman
- Neurosurgery Department, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | | | | | | | | |
Collapse
|
16
|
Hodgkinson A, Gillett L, Simpson GK. Does Apolipoprotein E Play a Role in Outcome After Severe Traumatic Brain Injury? BRAIN IMPAIR 2012. [DOI: 10.1375/brim.10.2.162] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractThere is mixed evidence linking adverse outcomes after traumatic brain injury to the presence of the ε4 allele of the apolipoprotein gene (APOE). Further, there has been limited investigation of the role of APOE in populations who have sustained severe brain injuries. In this study, 100 individuals aged 16 to 65 years with a severe to extremely severe traumatic brain injury were recruited prospectively from an inpatient rehabilitation unit. APOE genotypes were determined, and demographic and clinical data were collected by blind assessors at 6 months postinjury. Sixty-nine participants who were divided into an acute (less than 12 months postinjury) and chronic (greater than 12 months) groups also completed neuropsychological assessments testing various domains of memory, attention and problem-solving at follow-up. No significant differences in injury severity, cognitive or functional outcome were found between individuals with the ε4 allele and those without at either time postinjury. This finding is consistent with other recent data that has questioned the role of APOE status as a factor in recovery from TBI.
Collapse
|
17
|
Gao X, Deng P, Xu ZC, Chen J. Moderate traumatic brain injury causes acute dendritic and synaptic degeneration in the hippocampal dentate gyrus. PLoS One 2011; 6:e24566. [PMID: 21931758 PMCID: PMC3172233 DOI: 10.1371/journal.pone.0024566] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Accepted: 08/14/2011] [Indexed: 11/19/2022] Open
Abstract
Hippocampal injury-associated learning and memory deficits are frequent hallmarks of brain trauma and are the most enduring and devastating consequences following traumatic brain injury (TBI). Several reports, including our recent paper, showed that TBI brought on by a moderate level of controlled cortical impact (CCI) induces immature newborn neuron death in the hippocampal dentate gyrus. In contrast, the majority of mature neurons are spared. Less research has been focused on these spared neurons, which may also be injured or compromised by TBI. Here we examined the dendrite morphologies, dendritic spines, and synaptic structures using a genetic approach in combination with immunohistochemistry and Golgi staining. We found that although most of the mature granular neurons were spared following TBI at a moderate level of impact, they exhibited dramatic dendritic beading and fragmentation, decreased number of dendritic branches, and a lower density of dendritic spines, particularly the mushroom-shaped mature spines. Further studies showed that the density of synapses in the molecular layer of the hippocampal dentate gyrus was significantly reduced. The electrophysiological activity of neurons was impaired as well. These results indicate that TBI not only induces cell death in immature granular neurons, it also causes significant dendritic and synaptic degeneration in pathohistology. TBI also impairs the function of the spared mature granular neurons in the hippocampal dentate gyrus. These observations point to a potential anatomic substrate to explain, in part, the development of posttraumatic memory deficits. They also indicate that dendritic damage in the hippocampal dentate gyrus may serve as a therapeutic target following TBI.
Collapse
Affiliation(s)
- Xiang Gao
- Spinal Cord and Brain Injury Research Group, Department of Neurosurgery, Stark Neuroscience Research Institute, Indianapolis, Indiana, United States of America
| | - Ping Deng
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Zao C. Xu
- Spinal Cord and Brain Injury Research Group, Department of Neurosurgery, Stark Neuroscience Research Institute, Indianapolis, Indiana, United States of America
| | - Jinhui Chen
- Spinal Cord and Brain Injury Research Group, Department of Neurosurgery, Stark Neuroscience Research Institute, Indianapolis, Indiana, United States of America
- * E-mail:
| |
Collapse
|
18
|
Han X, Tong J, Zhang J, Farahvar A, Wang E, Yang J, Samadani U, Smith DH, Huang JH. Imipramine treatment improves cognitive outcome associated with enhanced hippocampal neurogenesis after traumatic brain injury in mice. J Neurotrauma 2011; 28:995-1007. [PMID: 21463148 DOI: 10.1089/neu.2010.1563] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Previous animal and human studies have demonstrated that chronic treatment with several different antidepressants can stimulate neurogenesis, neural remodeling, and synaptic plasticity in the normal hippocampus. Imipramine is a commonly used tricyclic antidepressant (TCA). We employed a controlled cortical impact (CCI) mouse model of traumatic brain injury (TBI) to assess the effect of imipramine on neurogenesis and cognitive and motor function recovery after TBI. Mice were given daily imipramine injections for either 2 or 4 weeks after injury. Bromodeoxyuridine (BrdU) was administered 3-7 days post-brain injury to label the cells that proliferated as a result of the injury. We assessed the effects of imipramine on post-traumatic motor function using a beam-walk test and an assessment of cognitive function: the novel object recognition test (NOR). Histological analyses were performed at 2 and 4 weeks after CCI. Brain-injured mice treated with imipramine showed significantly improved cognitive function compared to a saline-treated group (p<0.001). However, there was no significant difference in motor function recovery between imipramine-treated and saline-treated mice. Histological examination revealed increased preservation of proliferation of Ki-67- and BrdU-positive cells in the hippocampal dentate gyrus (DG) at 2 and 4 weeks after TBI. Immunofluorescence double-labeling with BrdU and neuron-specific markers at 4 weeks after injury showed that most progenitors became neurons in the DG and astrocytes in the hilus. Notably, treatment with imipramine increased preservation of the total number of newly-generated neurons. Our findings provide direct evidence that imipramine treatment contributes to cognitive improvement after TBI, perhaps by enhanced hippocampal neurogenesis.
Collapse
Affiliation(s)
- Xiaodi Han
- Department of Neurosurgery, University of Rochester, Rochester, New York 14642, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Shadli RM, Pieter MS, Yaacob MJ, Rashid FA. APOE genotype and neuropsychological outcome in mild-to-moderate traumatic brain injury: A pilot study. Brain Inj 2011; 25:596-603. [DOI: 10.3109/02699052.2011.572947] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
20
|
Busch RM, Floden D, Lineweaver TT, Chapin JS, Unnwongse K, Wehner T, Diaz-Arrastia R, Najm IM. Effect of apolipoprotein ε4 allele on hippocampal and brain volume in intractable temporal lobe epilepsy. Epilepsy Behav 2011; 21:88-90. [PMID: 21317045 DOI: 10.1016/j.yebeh.2011.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 01/04/2011] [Accepted: 01/05/2011] [Indexed: 11/18/2022]
Abstract
This study investigated the relationship between the apolipoprotein (APOE) ε4 allele and brain volumes in patients with medically intractable temporal lobe epilepsy (TLE). MRI-based volumetric analyses of the hippocampi, cerebral hemispheres, and whole brain were conducted in 59 patients with TLE (31 with left TLE, 28 with right TLE) with hippocampal sclerosis (HS). There were no differences in hippocampal, hemispheric, or whole brain volumes as a function of ε4 status even after correcting for hemispheric and total brain volumes. However, APOE ε4 carriers showed a trend toward having a smaller discrepancy between ipsilateral and contralateral hippocampal volumes than patients without this allele, and post hoc analyses suggest there may be an increased incidence of bilateral HS in ε4 carriers. In summary, APOE ε4 is not associated with significant hippocampal, hemispheric, or whole brain atrophy in patients with medically intractable TLE. However, ε4 carriers may be more likely to have bilateral HS, with an apparent dose-dependent effect.
Collapse
Affiliation(s)
- Robyn M Busch
- Epilepsy Center, Neurological Institute, Cleveland Clinic, Cleveland, OH 44195, USA.
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Gao X, Chen J. Conditional knockout of brain-derived neurotrophic factor in the hippocampus increases death of adult-born immature neurons following traumatic brain injury. J Neurotrauma 2010; 26:1325-35. [PMID: 19203227 DOI: 10.1089/neu.2008.0744] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
It has been reported that the hippocampus is particularly vulnerable to traumatic brain injury (TBI), the consequence of which results in hippocampal-dependent cognitive impairment. In the previous study we found that adult-born immature neurons in the hippocampal dentate gyrus are the most vulnerable cell type to moderate TBI insult. However, the molecular mechanisms that regulate the survival of adult-born immature neurons in the hippocampus following TBI are still not well understood. Here, we conditionally knocked out brain-derived neurotrophic factor (BDNF) in the hippocampal dentate gyrus and examined the death of adult-born immature neurons following moderate TBI. The results showed that the amount of adult-born immature neuron death in the hippocampal dentate gyrus significantly increased in the BDNF conditional knockout mice. This result suggests that BDNF is involved in regulating the survival of adult-born immature neurons in the hippocampus following TBI, and potentially might be a useful target for preventing the adult-born immature neurons from death following TBI.
Collapse
Affiliation(s)
- Xiang Gao
- Spinal Cord and Brain Injury Research Group, Indiana University, Indianapolis, IN 46202, USA
| | | |
Collapse
|
22
|
Capizzano AA, Jorge RE, Robinson RG. Limbic metabolic abnormalities in remote traumatic brain injury and correlation with psychiatric morbidity and social functioning. J Neuropsychiatry Clin Neurosci 2010; 22:370-7. [PMID: 21037120 PMCID: PMC3647459 DOI: 10.1176/jnp.2010.22.4.370] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of this study was to investigate limbic metabolic abnormalities in remote traumatic brain injury (TBI) and their psychiatric correlates. Twenty patients and 13 age-matched comparison subjects received complete psychiatric evaluation and brain MRI and MR spectroscopy at 3 Tesla. Patients had reduced NAA to creatine ratio in the left hippocampus relative to comparison subjects (mean=1.3 [SD=0.21] compared with mean=1.55 [SD=0.21]; F=10.73, df=1, 30, p=0.003), which correlated with the Social Functioning Examination scores (r(s)=-0.502, p=0.034). Furthermore, patients with mood disorders had reduced NAA to creatine ratio in the left cingulate relative to patients without mood disorders (1.47 compared with 1.68; F=3.393, df=3, 19, p=0.044). Remote TBI displays limbic metabolic abnormalities, which correlate to social outcome and psychiatric status.
Collapse
|
23
|
Dardiotis E, Fountas KN, Dardioti M, Xiromerisiou G, Kapsalaki E, Tasiou A, Hadjigeorgiou GM. Genetic association studies in patients with traumatic brain injury. Neurosurg Focus 2010; 28:E9. [DOI: 10.3171/2009.10.focus09215] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Traumatic brain injury (TBI) constitutes a major cause of mortality and disability worldwide, especially among young individuals. It is estimated that despite all the recent advances in the management of TBI, approximately half of the patients suffering head injuries still have unfavorable outcomes, which represents a substantial health care, social, and economic burden to societies.
Considerable variability exists in the clinical outcome after TBI, which is only partially explained by known factors. Accumulating evidence has implicated various genetic elements in the pathophysiology of brain trauma. The extent of brain injury after TBI seems to be modulated to some degree by genetic variants.
The authors' current review focuses on the up-to-date state of knowledge regarding genetic association studies in patients sustaining TBI, with particular emphasis on the mechanisms underlying the implication of genes in the pathophysiology of TBI.
Collapse
Affiliation(s)
- Efthimios Dardiotis
- 1Departments of Neurology, Laboratory of Neurogenetics,
- 2Institute for Biomedical Technology, Centre for Research and Technology–Thessaly, Larissa, Greece
| | | | - Maria Dardioti
- 2Institute for Biomedical Technology, Centre for Research and Technology–Thessaly, Larissa, Greece
| | - Georgia Xiromerisiou
- 1Departments of Neurology, Laboratory of Neurogenetics,
- 2Institute for Biomedical Technology, Centre for Research and Technology–Thessaly, Larissa, Greece
| | - Eftychia Kapsalaki
- 4Diagnostic Radiology, University of Thessaly, University Hospital of Larissa, Greece; and
| | | | - Georgios M. Hadjigeorgiou
- 1Departments of Neurology, Laboratory of Neurogenetics,
- 2Institute for Biomedical Technology, Centre for Research and Technology–Thessaly, Larissa, Greece
| |
Collapse
|
24
|
Reduced physiological complexity in robust elderly adults with the APOE epsilon4 allele. PLoS One 2009; 4:e7733. [PMID: 19890394 PMCID: PMC2767503 DOI: 10.1371/journal.pone.0007733] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2009] [Accepted: 10/02/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND It is unclear whether the loss of physiological complexity during the aging process is due to genetic variations. The APOE gene has been studied extensively in regard to its relationship with aging-associated medical illness. We hypothesize that diminished physiological complexity, as measured by heart rate variability, is influenced by polymorphisms in the APOE allele among elderly individuals. METHODOLOGY/PRINCIPAL FINDINGS A total of 102 robust, non-demented, elderly subjects with normal functions of daily activities participated in this study (97 males and 5 females, aged 79.2+/-4.4 years, range 72-92 years). Among these individuals, the following two APOE genotypes were represented: epsilon4 non-carriers (n = 87, 85.3%) and epsilon4 carriers (n = 15, 14.7%). Multi-scale entropy (MSE), an analysis used in quantifying complexity for nonlinear time series, was employed to analyze heart-rate dynamics. Reduced physiological complexity, as measured by MSE, was significantly associated with the presence of the APOE epsilon4 allele in healthy elderly subjects, as compared to APOE epsilon4 allele non-carriers (24.6+/-5.5 versus 28.9+/-5.2, F = 9.429, p = 0.003, respectively). CONCLUSIONS/SIGNIFICANCE This finding suggests a role for the APOE gene in the diminished physiological complexity seen in elderly populations.
Collapse
|
25
|
Müller K, Ingebrigtsen T, Wilsgaard T, Wikran G, Fagerheim T, Romner B, Waterloo K. Prediction of time trends in recovery of cognitive function after mild head injury. Neurosurgery 2009; 64:698-704; discussion 704. [PMID: 19349827 DOI: 10.1227/01.neu.0000340978.42892.78] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To investigate relations between predictors and outcomes, and especially to identify predictors influencing the time trend in recovery after mild traumatic brain injury. METHODS We included 59 patients with mild head injury in a prospective study. They underwent comprehensive assessment with neurological and neuroradiological examinations, serum S-100B analysis, and apolipoprotein E (APOE) genotyping. Neuropsychological testing was performed before and 6 months after discharge. Linear mixed models were used to assess associations between baseline predictors and neurocognitive performance and its change. RESULTS A Glasgow Coma Scale score of less than 15, traumatic brain injury demonstrated with computed tomography, magnetic resonance imaging, and serum S-100B greater than 0.14 microg/L predicted impaired cognitive performance both at baseline and after 6 months; APOE genotype did not. There was significant improvement of performance after 6 months. APOE-epsilon4 genotype was the only independent factor significantly predicting less improvement. CONCLUSION The presence of the APOE-epsilon4 allele predicts less recovery of cognitive function after mild head injury.
Collapse
Affiliation(s)
- Kay Müller
- Department of Neurosurgery, University Hospital of North Norway, Tromsø, Norway.
| | | | | | | | | | | | | |
Collapse
|
26
|
Gao X, Enikolopov G, Chen J. Moderate traumatic brain injury promotes proliferation of quiescent neural progenitors in the adult hippocampus. Exp Neurol 2009; 219:516-23. [PMID: 19615997 DOI: 10.1016/j.expneurol.2009.07.007] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Revised: 06/16/2009] [Accepted: 07/06/2009] [Indexed: 12/13/2022]
Abstract
Recent evidence shows that traumatic brain injury (TBI) regulates proliferation of neural stem/progenitor cells in the dentate gyrus (DG) of adult hippocampus. There are distinct classes of neural stem/progenitor cells in the adult DG, including quiescent neural progenitors (QNPs), which carry stem cell properties, and their progeny, amplifying neural progenitors (ANPs). The response of each class of progenitors to TBI is not clear. We here used a transgenic reporter Nestin-GFP mouse line, in which QNP and ANP cells are easily visualized and quantified, to determine the targets of the TBI in the DG. We examined changes in proliferation of QNPs and ANPs in the acute phase following TBI and found that QNPs were induced by TBI insult to enter the cell cycle whereas proliferation of ANPs was not significantly affected. These results indicate that different subtypes of neural stem/progenitor cells respond differently to TBI insult. Stem cell activation by the TBI may reflect the induction of innate repair and plasticity mechanisms by the injured brain.
Collapse
Affiliation(s)
- Xiang Gao
- Spinal Cord and Brain Injury Research Group, Stark Neuroscience Research Institute, and Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | | | | |
Collapse
|
27
|
Hiekkanen H, Kurki T, Brandstack N, Kairisto V, Tenovuo O. MRI changes and ApoE genotype, a prospective 1-year follow-up of traumatic brain injury: A pilot study. Brain Inj 2009; 21:1307-14. [DOI: 10.1080/02699050701739549] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
28
|
Gao X, Chen J. Conditional knockout of brain-derived neurotrophic factor in the hippocampus increases death of adult-born immature neurons following traumatic brain injury. J Neurotrauma 2009. [DOI: 10.1089/neu.2008-0744] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
29
|
Gao X, Deng-Bryant Y, Cho W, Carrico KM, Hall ED, Chen J. Selective death of newborn neurons in hippocampal dentate gyrus following moderate experimental traumatic brain injury. J Neurosci Res 2008; 86:2258-70. [PMID: 18381764 DOI: 10.1002/jnr.21677] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Memory impairment is one of the most significant residual deficits following traumatic brain injury (TBI) and is among the most frequent complaints heard from patients and their relatives. It has been reported that the hippocampus is particularly vulnerable to TBI, which results in hippocampus-dependent cognitive impairment. There are different regions in the hippocampus, and each region is composed of different cell types, which might respond differently to TBI. However, regional and cell type-specific neuronal death following TBI is not well described. Here, we examined the distribution of degenerating neurons in the hippocampus of the mouse brain following controlled cortical impact (CCI) and found that the majority of degenerating neurons observed were in the dentate gyrus after moderate (0.5 mm cortical deformation) CCI-TBI. In contrast, there were only a few degenerating neurons observed in the hilus, and we did not observe any degenerating neurons in the CA3 or CA1 regions. Among those degenerating cells in the dentate gyrus, about 80% of them were found in the inner granular neuron layer. Analysis with cell type-specific markers showed that most of the degenerating neurons in the inner granular neuron layer are newborn immature neurons. Further quantitative analysis shows that the number of newborn immature neurons in the dentate gyrus is dramatically decreased in the ipsilateral hemisphere compared with the contralateral side. Collectively, our data demonstrate the selective death of newborn immature neurons in the hippocampal dentate gyrus following moderate injury with CCI in mice. This selective vulnerability of newborn immature dentate neurons may contribute to the persistent impairment of learning and memory post-TBI and provide an innovative target for neuroprotective treatment strategies.
Collapse
Affiliation(s)
- Xiang Gao
- Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, Kentucky 40536, USA
| | | | | | | | | | | |
Collapse
|
30
|
Mitra B, Cameron PA, Gabbe BJ, Rosenfeld JV, Kavar B. MANAGEMENT AND HOSPITAL OUTCOME OF THE SEVERELY HEAD INJURED ELDERLY PATIENT. ANZ J Surg 2008; 78:588-92. [DOI: 10.1111/j.1445-2197.2008.04579.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
31
|
Jordan BD. Genetic influences on outcome following traumatic brain injury. Neurochem Res 2007; 32:905-15. [PMID: 17342413 DOI: 10.1007/s11064-006-9251-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Accepted: 12/05/2006] [Indexed: 02/02/2023]
Abstract
Several genes have been implicated as influencing the outcome following traumatic brain injury (TBI). Currently the most extensively studied gene has been APOE. APOE can influence overall and rehabilitation outcome, coma recovery, risk of posttraumatic seizures, as well as cognitive and behavioral functions following TBI. Pathologically, APOE is associated with increased amyloid deposition, amyloid angiopathy, larger intracranial hematomas and more severe contusional injury. The proposed mechanism by which APOE affects the clinicopathological consequences of TBI is multifactorial and includes amyloid deposition, disruption of cytoskeletal stability, cholinergic dysfunction, oxidative stress, neuroprotection and central nervous system plasticity in response to injury. Other putative genes have been less extensively studied and require replication of the clinical findings. The COMT and DRD2 genes may influence dopamine dependent cognitive processes such as executive/frontal lobe functions. Inflammation which is a prominent component in the pathophysiological cascade initiated by TBI, is in part is mediated by the interleukin genes, while apoptosis that occurs as a consequence of TBI may be modulated by polymorphisms of the p53 gene. The ACE gene may affect TBI outcome via mechanisms of cerebral blood flow and/or autoregulation and the CACNA1A gene may exert an influence via the calcium channel and its effect on delayed cerebral edema. Although several potential genes that may influence outcome following TBI have been identified, future investigations are needed to validate these genetic studies and identify new genes that might influence outcome following TBI.
Collapse
Affiliation(s)
- Barry D Jordan
- Brain Injury Program, Burke Rehabilitation Hospital, 785 Mamaroneck Avenue, White Plains, NY 10605, USA.
| |
Collapse
|