Mild traumatic brain injury is associated with impaired hippocampal spatiotemporal representation in the absence of histological changes.

Abstract:

:Mild traumatic brain injury (mTBI) accounts for the majority of head trauma cases. Despite some lasting cognitive, emotional, and behavioral deficits, there are frequently no overt morphological defects, suggesting that changes may result from alterations in the physiology of individual neurons. We investigated hippocampal neural activity in rats during a working memory task to determine the effect of mTBI on cellular physiology. Male Sprague-Dawley rats (300-350 g) underwent mTBI via lateral fluid percussion (1.5 atm), and were compared with sham-operated rats. The rats then underwent bilateral implantation of electrodes into the CA1 and CA3 hippocampal subfields and were trained to perform in a delayed nonmatch-to-place swim T-maze. Single-neuron activity was analyzed during task performance 30-90 days after trauma. There were no histological differences between control and mTBI rats. Stereological analysis demonstrated no neuronal loss. Nevertheless, rats subjected to mTBI demonstrated significantly poorer performance on the task with increasing delay. Examination of single-neuron spiking activity revealed no significant difference in firing rates or spike characteristics, but rats exposed to mTBI were found to have significantly fewer cells with activity spatiotemporally correlated with location in the maze ("task-specific cells," p<0.05 by Fisher's exact test). Memory deficits, including disorganized patterns of hippocampal neural activity after mTBI, were seen in rats. Because it is seen in the absence of clear morphological defects, these data suggest that functional impairment after mTBI may result from alterations in the activity of individual neurons.

journal_name

J Neurotrauma

journal_title

Journal of neurotrauma

authors

Eakin K,Miller JP

doi

10.1089/neu.2011.2192

subject

Has Abstract

pub_date

2012-04-10 00:00:00

pages

1180-7

issue

6

eissn

0897-7151

issn

1557-9042

journal_volume

29

pub_type

杂志文章
  • Relative risk of mortality after traumatic brain injury: a population-based study of the role of age and injury severity.

    abstract::To test if observed vs. expected mortality differs by age among traumatic brain injury (TBI) cases, a population-based, historical cohort study was conducted in Olmsted County, Minnesota. From all residents with any diagnosis suggestive of TBI 1985-1999, we randomly sampled 7,800 and reviewed their medical records to ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2006.0119

    authors: Flaada JT,Leibson CL,Mandrekar JN,Diehl N,Perkins PK,Brown AW,Malec JF

    更新日期:2007-03-01 00:00:00

  • Genetic deletion and pharmacological inhibition of Nogo-66 receptor impairs cognitive outcome after traumatic brain injury in mice.

    abstract::Functional recovery is markedly restricted following traumatic brain injury (TBI), partly due to myelin-associated inhibitors including Nogo-A, myelin-associated glycoprotein (MAG) and oligodendrocyte myelin glycoprotein (OMgp), that all bind to the Nogo-66 receptor-1 (NgR1). In previous studies, pharmacological neutr...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2009.1255

    authors: Hånell A,Clausen F,Björk M,Jansson K,Philipson O,Nilsson LN,Hillered L,Weinreb PH,Lee D,McIntosh TK,Gimbel DA,Strittmatter SM,Marklund N

    更新日期:2010-07-01 00:00:00

  • Phase II Clinical Trial of Atorvastatin in Mild Traumatic Brain Injury.

    abstract::Statins constitute a class of medications commonly used in the treatment of elevated cholesterol. However, in experimental studies, statins also have other non-cholesterol-mediated mechanisms of action, which may have neuroprotective effects. The aim of this study was to determine whether administration of atorvastati...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2016.4717

    authors: Robertson CS,McCarthy JJ,Miller ER,Levin H,McCauley SR,Swank PR

    更新日期:2017-02-27 00:00:00

  • Cationic liposome-mediated GDNF gene transfer after spinal cord injury.

    abstract::Glial cell line-derived neurotrophic factor (GDNF) has been shown to protect cranial and spinal motoneurons, which suggests potential uses of GDNF in the treatment of spinal cord injury (SCI) and motor neuron disease. We examined neuroprotective effect of cationic liposome-mediated GDNF gene transfer in vivo on axonal...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/089771502760341983

    authors: Lu KW,Chen ZY,Jin DD,Hou TS,Cao L,Fu Q

    更新日期:2002-09-01 00:00:00

  • Outcome Prediction after Moderate and Severe Traumatic Brain Injury: External Validation of Two Established Prognostic Models in 1742 European Patients.

    abstract::The International Mission on Prognosis and Analysis of Clinical Trials in Traumatic Brain Injury (IMPACT) and Corticoid Randomisation After Significant Head injury (CRASH) prognostic models predict functional outcome after moderate and severe traumatic brain injury (TBI). We aimed to assess their performance in a cont...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2020.7300

    authors: Dijkland SA,Helmrich IRAR,Nieboer D,van der Jagt M,Dippel DWJ,Menon DK,Stocchetti N,Maas AIR,Lingsma HF,Steyerberg EW,CENTER-TBI Participants and Investigators.

    更新日期:2020-12-14 00:00:00

  • Hemorrhagic shock shifts the serum cytokine profile from pro- to anti-inflammatory after experimental traumatic brain injury in mice.

    abstract::Secondary insults, such as hemorrhagic shock (HS), worsen outcome from traumatic brain injury (TBI). Both TBI and HS modulate levels of inflammatory mediators. We evaluated the addition of HS on the inflammatory response to TBI. Adult male C57BL6J mice were randomized into five groups (n=4 [naïve] or 8/group): naïve; ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2013.2985

    authors: Shein SL,Shellington DK,Exo JL,Jackson TC,Wisniewski SR,Jackson EK,Vagni VA,Bayır H,Clark RS,Dixon CE,Janesko-Feldman KL,Kochanek PM

    更新日期:2014-08-15 00:00:00

  • Amantadine Did Not Positively Impact Cognition in Chronic Traumatic Brain Injury: A Multi-Site, Randomized, Controlled Trial.

    abstract::Despite limited evidence to support the use of amantadine to enhance cognitive function after traumatic brain injury (TBI), the clinical use for this purpose is highly prevalent and is often based on inferred belief systems. The aim of this study was to assess effect of amantadine on cognition among individuals with a...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1089/neu.2018.5767

    authors: Hammond FM,Sherer M,Malec JF,Zafonte RD,Dikmen S,Bogner J,Bell KR,Barber J,Temkin N

    更新日期:2018-10-01 00:00:00

  • Genetic Modulators of Traumatic Brain Injury in Animal Models and the Impact of Sex-Dependent Effects.

    abstract::Traumatic brain injury (TBI) is a major health problem causing disability and death worldwide. There is no effective treatment, due in part to the complexity of the injury pathology and factors affecting its outcome. The extent of brain injury depends on the type of insult, age, sex, lifestyle, genetic risk factors, s...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2019.6955

    authors: Inampudi C,Ciccotosto GD,Cappai R,Crack PJ

    更新日期:2020-03-01 00:00:00

  • Neuroinflammation after SCI: Current Insights and Therapeutic Potential of Intravenous Immunoglobulin.

    abstract::Traumatic spinal cord injury (SCI) elicits a complex cascade of cellular and molecular inflammatory events. Although certain aspects of the inflammatory response are essential to wound healing and repair, post-SCI inflammation is, on balance, thought to be detrimental to recovery by causing "bystander damage" and the ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2019.6952

    authors: Gillespie ER,Ruitenberg MJ

    更新日期:2020-08-26 00:00:00

  • Imaging Markers for the Characterization of Gray and White Matter Changes from Acute to Chronic Stages after Experimental Traumatic Brain Injury.

    abstract::Despite clinical symptoms, a large majority of people with mild traumatic brain injury (TBI) have normal computed tomography (CT) and magnetic resonance imaging (MRI) scans. Therefore, present-day neuroimaging tools are insufficient to diagnose or classify low grades of TBI. Advanced neuroimaging techniques, such as d...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2020.7151

    authors: Sinke MRT,Otte WM,Meerwaldt AE,Franx BAA,Ali MHM,Rakib F,van der Toorn A,van Heijningen CL,Smeele C,Ahmed T,Blezer ELA,Dijkhuizen RM

    更新日期:2021-01-11 00:00:00

  • Alcohol consumption in traumatic brain injury: attenuation of TBI-induced hyperthermia and neurocognitive deficits.

    abstract::Clinical and animal studies indicate that hyperthermia during or after traumatic brain injury (TBI) is associated with poor outcome. Alcohol intoxication, a complicating risk factor in many cases of head injury, has been found to both worsen or attenuate posttraumatic neural damage and outcome. The purpose of the pres...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/089771502762300256

    authors: Taylor AN,Romeo HE,Beylin AV,Tio DL,Rahman SU,Hovda DA

    更新日期:2002-12-01 00:00:00

  • Traumatic cerebral vascular injury: the effects of concussive brain injury on the cerebral vasculature.

    abstract::In terms of human suffering, medical expenses, and lost productivity, head injury is one of the major health care problems in the United States, and inadequate cerebral blood flow is an important contributor to mortality and morbidity after traumatic brain injury. Despite the importance of cerebral vascular dysfunctio...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,评审

    doi:10.1089/089771503322385755

    authors: DeWitt DS,Prough DS

    更新日期:2003-09-01 00:00:00

  • Temporal and spatial profile of phosphorylated connexin43 after traumatic brain injury in rats.

    abstract::Gap junctions are conductive channels formed by membrane proteins termed connexins (Cx), which permit the intercellular exchange of metabolites, ions, and small molecules. Junctional permeability is regulated by pH, membrane potential, and intracellular secondary messengers. The purpose of this study was to elucidate ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2009.1234

    authors: Ohsumi A,Nawashiro H,Otani N,Ooigawa H,Toyooka T,Shima K

    更新日期:2010-07-01 00:00:00

  • Relationship between intracranial pressure and cortical spreading depression following fluid percussion brain injury in rats.

    abstract::Traumatic brain injury (TBI) is known to be accompanied by an increase in intracranial pressure (ICP) and in some cases, by spontaneous generation of cortical spreading depression (CSD) cycles. However, the role of CSD in the pathophysiology of cerebral contusion is still unknown. A multiparametric monitoring assembly...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/089771503322686111

    authors: Rogatsky GG,Sonn J,Kamenir Y,Zarchin N,Mayevsky A

    更新日期:2003-12-01 00:00:00

  • Health-related quality of life in traumatic brain injury: is a proxy report necessary?

    abstract::Despite its importance to care, clinicians and researchers often discount patient-reported outcomes in favor of proxy reports, in persons with traumatic brain injury (TBI). The rationale relates to concerns about lack of awareness of patients regarding their functioning. However, although lack of awareness occurs in s...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2013.2920

    authors: Machamer J,Temkin N,Dikmen S

    更新日期:2013-11-15 00:00:00

  • Alterations in Cholinergic Pathways and Therapeutic Strategies Targeting Cholinergic System after Traumatic Brain Injury.

    abstract::Traumatic brain injury (TBI) results in varying degrees of disability in a significant number of persons annually. The mechanisms of cognitive dysfunction after TBI have been explored in both animal models and human clinical studies for decades. Dopaminergic, serotonergic, and noradrenergic dysfunction has been descri...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,评审

    doi:10.1089/neu.2014.3445

    authors: Shin SS,Dixon CE

    更新日期:2015-10-01 00:00:00

  • The impact of co-morbidities on age-related differences in mortality after acute traumatic spinal cord injury.

    abstract::Despite the shift in demographics of spinal cord injury (SCI) due to an aging population, relatively little has been reported regarding the effect of age on outcomes after SCI. This study examines the potential confounding effect of co-morbidities on the age-related differences in the hospital mortality following acut...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2008.0764

    authors: Furlan JC,Kattail D,Fehlings MG

    更新日期:2009-08-01 00:00:00

  • Functional Outcome Prediction after Traumatic Spinal Cord Injury Based on Acute Clinical Factors.

    abstract::Spinal cord injury (SCI) is a devastating condition that affects patients on both a personal and societal level. The objective of the study is to improve the prediction of long-term functional outcome following SCI based on the acute clinical findings. A total of 76 patients with acute traumatic SCI were prospectively...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2016.4955

    authors: Kaminski L,Cordemans V,Cernat E,M'Bra KI,Mac-Thiong JM

    更新日期:2017-06-15 00:00:00

  • The Autonomic System Functional State Predicts Responsiveness in Disorder of Consciousness.

    abstract::Diagnosis and early prognosis of the vegetative state/unresponsive wakefulness syndrome (VS/UWS) and its differentiation from the minimally-conscious state still rest on the clinical observation of responsiveness. The incidence of established clinical indicators of responsiveness also has proven variable in the single...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2014.3539

    authors: Riganello F,Cortese MD,Dolce G,Lucca LF,Sannita WG

    更新日期:2015-07-15 00:00:00

  • Magnetic resonance imaging detects and predicts early brain injury after subarachnoid hemorrhage in a canine experimental model.

    abstract::The canine double hemorrhage model is an established model to study cerebral vasospasm, the late sequelae of subarachnoid hemorrhage (SAH). The present study uses magnetic resonance imaging (MRI) to examine the recently reported early brain injury after SAH. Double hemorrhage SAH modeling was obtained by injecting 0.5...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2008.0518

    authors: Jadhav V,Sugawara T,Zhang J,Jacobson P,Obenaus A

    更新日期:2008-09-01 00:00:00

  • Monitoring of reactive oxygen species production after traumatic brain injury in rats with microdialysis and the 4-hydroxybenzoic acid trapping method.

    abstract::The detection of reactive oxygen species (ROS) after traumatic brain injury (TBI) is based on indirect methods due to the high reactivity and short half-life of ROS in biological tissue. The commonly used salicylate trapping method has several disadvantages making it unsuitable for human use. We have evaluated 4-hydro...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/089771501317095250

    authors: Marklund N,Clausen F,Lewander T,Hillered L

    更新日期:2001-11-01 00:00:00

  • The Serum Phosphorylated Neurofilament Heavy Subunit as a Predictive Marker for Outcome in Adult Patients after Traumatic Brain Injury.

    abstract::The serum phosphorylated neurofilament heavy subunit (pNF-H) is a nervous system-specific protein that is released from damaged neural tissue after traumatic brain injury (TBI). The aim of this study was to elucidate the usefulness of serum pNF-H as a predictive marker for the outcome of patients after TBI. Patients w...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2015.4237

    authors: Shibahashi K,Doi T,Tanaka S,Hoda H,Chikuda H,Sawada Y,Takasu Y,Chiba K,Nozaki T,Hamabe Y,Ogata T

    更新日期:2016-10-15 00:00:00

  • Patterns of Psychotropic Medication Use among Individuals with Traumatic Brain Injury.

    abstract::The relationship between psychotropic medication use and traumatic brain injury (TBI) is not well understood. The objective of this study was to describe patterns of psychotropic medication use during the months before and after TBI and compare with a non-TBI cohort. We conducted a retrospective cohort study using adm...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2019.6580

    authors: Albrecht JS,Wickwire EM,Mullins CD,Rao V

    更新日期:2020-04-15 00:00:00

  • From the Rodent Spinal Cord Injury Model to Human Application: Promises and Challenges.

    abstract::Repair of the spinal cord and improvement of mobility after injury has been a matter of basic and clinical research for several decades. A number of repair approaches were performed in animals, mainly rodent models of spinal cord injury (SCI). Some of these experimental therapies resulted in significant regeneration o...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,评审

    doi:10.1089/neu.2016.4513

    authors: Dietz V,Schwab ME

    更新日期:2017-05-01 00:00:00

  • Nicotine attenuates morphological deficits in a contusion model of spinal cord injury.

    abstract::Protection against the progression of secondary injury appears to be an effective therapeutic strategy in spinal cord injury (SCI). Evidence indicates that nicotine can induce potent neuroprotective effects against injury to spinal cord neurons. Therefore, the present study was focused on the effects of nicotine on th...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2005.22.240

    authors: Ravikumar R,Fugaccia I,Scheff SW,Geddes JW,Srinivasan C,Toborek M

    更新日期:2005-02-01 00:00:00

  • Carvacrol together with TRPC1 elimination improve functional recovery after traumatic brain injury in mice.

    abstract::Death of Central Nervous System (CNS) neurons following traumatic brain injury (TBI) is a complex process arising from a combination of factors, many of which are still unknown. It has been found that inhibition of transient receptor potential (TRP) channels constitutes an effective strategy for preventing death of CN...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2012.2575

    authors: Peters M,Trembovler V,Alexandrovich A,Parnas M,Birnbaumer L,Minke B,Shohami E

    更新日期:2012-12-10 00:00:00

  • Enduring vulnerability to transient reinstatement of hemiplegia by prazosin after traumatic brain injury.

    abstract::A single dose of an alpha1-noradrenergic antagonist transiently reinstates hemiplegia after recovery from brain injury, which suggests that noradrenaline (NA) is required to maintain recovery. No systematic studies have determined the postinjury duration of this vulnerability. This study used a within-subject, dose-re...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/08977150151070955

    authors: Stibick DL,Feeney DM

    更新日期:2001-03-01 00:00:00

  • Alterations in Hippocampal Network Activity after In Vitro Traumatic Brain Injury.

    abstract::Traumatic brain injury (TBI) alters function and behavior, which can be characterized by changes in electrophysiological function in vitro. A common cognitive deficit after mild-to-moderate TBI is disruption of persistent working memory, of which the in vitro correlate is long-lasting, neuronal network synchronization...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2014.3667

    authors: Kang WH,Cao W,Graudejus O,Patel TP,Wagner S,Meaney DF,Morrison B 3rd

    更新日期:2015-07-01 00:00:00

  • Concussion Induces Hippocampal Circuitry Disruption in Swine.

    abstract::Hippocampal-dependent deficits in learning and memory formation are a prominent feature of traumatic brain injury (TBI); however, the role of the hippocampus in cognitive dysfunction after concussion (mild TBI) is unknown. We therefore investigated functional and structural changes in the swine hippocampus following T...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2016.4848

    authors: Wolf JA,Johnson BN,Johnson VE,Putt ME,Browne KD,Mietus CJ,Brown DP,Wofford KL,Smith DH,Grady MS,Cohen AS,Cullen DK

    更新日期:2017-07-15 00:00:00

  • The striatum is the most vulnerable region in the brain to mitochondrial energy compromise: a hypothesis to explain its specific vulnerability.

    abstract::The striatum, together with the hippocampus, is one of the most vulnerable regions in the brain. Recently, genetic abnormalities or mutations have been linked to various neurodegenerative diseases, that is, Huntington's disease, Alzheimer's disease, amyotrophic lateral sclerosis (ALS), etc., but the processes from gen...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2000.17.251

    authors: Nishino H,Hida H,Kumazaki M,Shimano Y,Nakajima K,Shimizu H,Ooiwa T,Baba H

    更新日期:2000-03-01 00:00:00