Controlled cortical impact results in an extensive loss of dendritic spines that is not mediated by injury-induced amyloid-beta accumulation.

Abstract:

:The clinical manifestations that occur after traumatic brain injury (TBI) include a wide range of cognitive, emotional, and behavioral deficits. The loss of excitatory synapses could potentially explain why such diverse symptoms occur after TBI, and a recent preclinical study has demonstrated a loss of dendritic spines, the postsynaptic site of the excitatory synapse, after fluid percussion injury. The objective of this study was to determine if controlled cortical impact (CCI) also resulted in dendritic spine retraction and to probe the underlying mechanisms of this spine loss. We used a unilateral CCI and visualized neurons and dendtritic spines at 24 h post-injury using Golgi stain. We found that TBI caused a 32% reduction of dendritic spines in layer II/III of the ipsilateral cortex and a 20% reduction in the dendritic spines of the ipsilateral dentate gyrus. Spine loss was not restricted to the ipsilateral hemisphere, however, with similar reductions in spine numbers recorded in the contralateral cortex (25% reduction) and hippocampus (23% reduction). Amyloid-β (Aβ), a neurotoxic peptide commonly associated with Alzheimer disease, accumulates rapidly after TBI and is also known to cause synaptic loss. To determine if Aβ contributes to spine loss after brain injury, we administered a γ-secretase inhibitor LY450139 after TBI. We found that while LY450139 administration could attenuate the TBI-induced increase in Aβ, it had no effect on dendritic spine loss after TBI. We conclude that the acute, global loss of dendritic spines after TBI is independent of γ-secretase activity or TBI-induced Aβ accumulation.

journal_name

J Neurotrauma

journal_title

Journal of neurotrauma

authors

Winston CN,Chellappa D,Wilkins T,Barton DJ,Washington PM,Loane DJ,Zapple DN,Burns MP

doi

10.1089/neu.2013.2960

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

1966-72

issue

23

eissn

0897-7151

issn

1557-9042

journal_volume

30

pub_type

杂志文章
  • External anal sphincter hyperreflexia following spinal transection in the rat.

    abstract::In the present study, long-term and short-term rat preparations were used to develop a model for investigating external anal sphincter (EAS) reflexes in intact and spinal cord-injured (SCI) rats. In this model, EAS distension with an external probe elicits reflex contractions of the EAS in intact, unanesthetized anima...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1998.15.451

    authors: Holmes GM,Rogers RC,Bresnahan JC,Beattie MS

    更新日期:1998-06-01 00:00:00

  • Relationship between severity of spinal cord injury and abnormalities in neurogenic cardiovascular control in conscious rats.

    abstract::Abnormal sympathetic tone after spinal cord injury (SCI) initially results in hypotension and is subsequently associated with autonomic dysreflexia characterized by paroxysmal hypertension and bradycardia in response to noxious or visceral stimuli. To evaluate the effect of a clinically relevant compression model of S...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1998.15.365

    authors: Maiorov DN,Fehlings MG,Krassioukov AV

    更新日期:1998-05-01 00:00:00

  • Neural Correlates of Response Inhibition and Error Processing in Individuals with Mild Traumatic Brain Injury: An Event-Related Potential Study.

    abstract::Individuals with a mild traumatic brain injury (mTBI) often have executive control deficits; however, the underlying neural mechanisms of such deficits are yet to be clarified. Inhibitory control and cognitive monitoring are two fundamental aspects of executive control processes. This study investigated the executive ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2018.6122

    authors: Shen IH,Lin YJ,Chen CL,Liao CC

    更新日期:2020-01-01 00:00:00

  • Effect of traumatic brain injury on mouse spatial and nonspatial learning in the Barnes circular maze.

    abstract::Controlled cortical impact (CCI) is a relatively new model of traumatic brain injury in the mouse, which, in combination with behavioral and histological methods, has potential for elucidating underlying mechanisms of neurodegeneration using genetically altered animals. Previously, we have demonstrated impaired spatia...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1998.15.1037

    authors: Fox GB,Fan L,LeVasseur RA,Faden AI

    更新日期:1998-12-01 00:00:00

  • Traumatic Intracerebral Hemorrhage: Risk Factors Associated with Progression.

    abstract::The increase in the volume of a traumatic intracerebral hemorrhage (TICH) is a widely studied phenomenon that has a direct impact on the prognosis of patients. The objective of this study was to identify the risk factors associated with the progression of TICH. We retrospectively analyzed the records of 1970 adult pat...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2014.3808

    authors: Cepeda S,Gómez PA,Castaño-Leon AM,Martínez-Pérez R,Munarriz PM,Lagares A

    更新日期:2015-08-15 00:00:00

  • Onset, risk factors, and impact of delirium in patients with traumatic spinal cord injury.

    abstract::Delirium is a commonly reported acute care adverse event in patients with traumatic spinal cord injury (TSCI), but studies specifically investigating it in this population are lacking. The purpose of this study was to characterize the onset, risk factors, and impact of delirium in patients with TSCI. Patients discharg...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2013.2975

    authors: Cheung A,Thorogood NP,Noonan VK,Zhong Y,Fisher CG,Dvorak MF,Street J

    更新日期:2013-11-01 00:00:00

  • Cytokines and metabolic dysfunction after severe head injury.

    abstract::Patients with head injury must overcome central as well as peripheral metabolic insults. In addition to specific tissue damage to the brain, a cellular biochemical cascade occurs that can negatively affect organ function, cause a systemic response to injury, and may cause secondary tissue injury. The metabolites invol...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,评审

    doi:10.1089/neu.1994.11.447

    authors: Ott L,McClain CJ,Gillespie M,Young B

    更新日期:1994-10-01 00:00:00

  • Treatment for depression after traumatic brain injury: a systematic review.

    abstract::The aim of this systematic review was to critically evaluate the evidence on interventions for depression following traumatic brain injury (TBI) and provide recommendations for clinical practice and future research. We reviewed pharmacological, other biological, psychotherapeutic, and rehabilitation interventions for ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,评审

    doi:10.1089/neu.2009.1091

    authors: Fann JR,Hart T,Schomer KG

    更新日期:2009-12-01 00:00:00

  • Citalopram treatment of traumatic brain damage in a 6-year-old boy.

    abstract::Traumatic brain damage may cause acute emotional symptoms such as uncontrolled crying, apathy, and sleep problems. Rehabilitation may be less effective in patients afflicted by these symptoms. Citalopram, a selective serotonin reuptake inhibitor (SSRI), has a documented immediate and dramatic effect on pathological cr...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1999.16.341

    authors: Andersen G,Stylsvig M,Sunde N

    更新日期:1999-04-01 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

  • The phosphorylated axonal form of the neurofilament subunit NF-H (pNF-H) as a blood biomarker of traumatic brain injury.

    abstract::The detection of neuron-specific proteins in blood might allow quantification of the degree of neuropathology in experimental and clinical contexts. We have been studying a novel blood biomarker of axonal injury, the heavily phosphorylated axonal form of the high molecular weight neurofilament subunit NF-H (pNF-H). We...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2007.0488

    authors: Anderson KJ,Scheff SW,Miller KM,Roberts KN,Gilmer LK,Yang C,Shaw G

    更新日期:2008-09-01 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

  • Androgen regulates neuritin mRNA levels in an in vivo model of steroid-enhanced peripheral nerve regeneration.

    abstract::Following crush injury to the facial nerve in Syrian hamsters, treatment with androgens enhances axonal regeneration rates and decreases time to recovery. It has been demonstrated in vitro that the ability of androgen to enhance neurite outgrowth in motoneurons is dependent on neuritin-a protein that is involved in th...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2007.0466

    authors: Fargo KN,Alexander TD,Tanzer L,Poletti A,Jones KJ

    更新日期:2008-05-01 00:00:00

  • Proteoglycan 4 Reduces Neuroinflammation and Protects the Blood-Brain Barrier after Traumatic Brain Injury.

    abstract::Neuroinflammation and dysfunction of the blood-brain barrier (BBB) are two prominent mechanisms of secondary injury in neurotrauma. It has been suggested that Toll-like receptors (TLRs) play important roles in initiating and propagating neuroinflammation resulting from traumatic brain injury (TBI), but potential benef...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2020.7229

    authors: Bennett M,Chin A,Lee HJ,Morales Cestero E,Strazielle N,Ghersi-Egea JF,Threlkeld SW,Schmidt TA,Richendrfer HA,Szmydynger-Chodobska J,Jay GD,Chodobski A

    更新日期:2020-10-19 00:00:00

  • Functional outcome scales in traumatic brain injury: a comparison of the Glasgow Outcome Scale (Extended) and the Functional Status Examination.

    abstract::Clinical trials aimed at developing therapies for traumatic brain injury (TBI) require outcome measures that are reliable, validated, and easily administered. The most widely used of these measures, the Glasgow Outcome Scale (GOS) and the GOS-Extended (GOS-E), have been criticized as suffering from ceiling effects. In...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2005.22.1319

    authors: Hudak AM,Caesar RR,Frol AB,Krueger K,Harper CR,Temkin NR,Dikmen SS,Carlile M,Madden C,Diaz-Arrastia R

    更新日期:2005-11-01 00:00:00

  • Methylprednisolone treatment of acute spinal cord injury: an introduction.

    abstract::Contusion injuries of cat spinal cords rapidly block action potential conduction across the impact site. Ion-selective microelectrode measurements revealed large and immediate extracellular ionic derangements, sufficient to block conduction. As extracellular potassium recovers, evoked potentials often return but are l...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:

    authors: Young W

    更新日期:1991-07-01 00:00:00

  • Association between Blood Glucose Levels the Day after Targeted Temperature Initiation and Outcome in Traumatic Brain Injury: A Post-Hoc Analysis of the B-HYPO Study.

    abstract::We investigated associations between blood glucose levels and clinical outcomes in participants of the multi-center randomized controlled Brain-Hypothermia (B-HYPO) study. Patients with severe traumatic brain injury (TBI, Glasgow Coma Scale 4-8) were assigned to therapeutic hypothermia (TH, 32-34°C, n = 98) or fever c...

    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.2016.4662

    authors: Kobata H,Sugie A,Suehiro E,Dohi K,Kaneko T,Fujita M,Oda Y,Kuroda Y,Yamashita S,Maekawa T

    更新日期:2017-03-01 00:00:00

  • Survival Analysis-Based Human Head Injury Risk Curves: Focus on Skull Fracture.

    abstract::Head contact-induced loads can result in skull fractures and/or brain injuries. While skull fractures have been produced from post-mortem human cadaver surrogates (PMHS), injury probability curves describing their structural responses have not been developed. The objectives of this study were to develop skull fracture...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2017.5356

    authors: Yoganandan N,Banerjee A

    更新日期:2018-06-01 00:00:00

  • Early Glasgow Outcome Scale scores predict long-term functional outcome in patients with severe traumatic brain injury.

    abstract::Patients sustaining severe traumatic brain injury (TBI) have variable long-term outcomes. We examined the association between Glasgow Outcome Scale (GOS) assessed at 3 months and long-term outcomes at 12 months after TBI. We studied 159 patients with severe, closed traumatic brain injuries (Glasgow Coma Scale [GCS]

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2005.22.947

    authors: King JT Jr,Carlier PM,Marion DW

    更新日期:2005-09-01 00:00:00

  • Riluzole reduces brain swelling and contusion volume in rats following controlled cortical impact injury.

    abstract::Modulation of the glutamatergic and excitotoxic pathway may attenuate secondary damage following traumatic brain injury by reducing presynaptic glutamate release and blocking sodium channels in their inactivated state. The aim of the present study was to investigate the neuroprotective potential of riluzole in traumat...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2000.17.1171

    authors: Stover JF,Beyer TF,Unterberg AW

    更新日期:2000-12-01 00:00:00

  • Increased risk of multiple sclerosis after traumatic brain injury: a nationwide population-based study.

    abstract::The etiology of multiple sclerosis (MS) is still not well known. Previous data show conflicting results regarding the association between MS and prior brain trauma. This study aims to investigate the risk for MS following a traumatic brain injury (TBI) using a large-scale cohort study design. This study used data from...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2011.1936

    authors: Kang JH,Lin HC

    更新日期:2012-01-01 00:00:00

  • The effects of repeat traumatic brain injury on the pituitary in adolescent rats.

    abstract::Adolescents are one of the highest groups at risk for sustaining both traumatic brain injury (TBI) and repeat TBI (RTBI). Consequences of endocrine dysfunction following TBI have been routinely explored in adults, but studies in adolescents are limited, and show an incidence rate of endocrine dysfunction in 16-61% in ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2013.2990

    authors: Greco T,Hovda D,Prins M

    更新日期:2013-12-01 00:00:00

  • Acute Cardiovascular Responses to Vagus Nerve Stimulation after Experimental Spinal Cord Injury.

    abstract::Pairing vagus nerve stimulation (VNS) with rehabilitation has emerged as a potential strategy to enhance plasticity and improve recovery in a range of neurological disorders. A recent study highlights the therapeutic promise of VNS in promoting motor recovery after spinal cord injury (SCI). We investigated the safety ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2019.6828

    authors: Sachdeva R,Krassioukov AV,Bucksot JE,Hays SA

    更新日期:2020-05-01 00:00:00

  • Functional and Molecular Correlates after Single and Repeated Rat Closed-Head Concussion: Indices of Vulnerability after Brain Injury.

    abstract::Closed-head concussive injury is one of the most common causes of traumatic brain injury (TBI). Isolated concussions frequently produce acute neurological impairments, and individuals typically recover spontaneously within a short time frame. In contrast, brain injuries resulting from multiple concussions can result i...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2016.4679

    authors: Mountney A,Boutté AM,Cartagena CM,Flerlage WF,Johnson WD,Rho C,Lu XC,Yarnell A,Marcsisin S,Sousa J,Vuong C,Zottig V,Leung LY,Deng-Bryant Y,Gilsdorf J,Tortella FC,Shear DA

    更新日期:2017-10-01 00:00:00

  • Time-dependent variability of infarct size and hemispheric volume in experimental focal cerebral ischemia in the rabbit.

    abstract::Studies measuring the volume of infarcted tissue and survival after pharmacologic intervention in stroke are complicated by the potential effect of survival time on infarct volume. In this study, the volume of infarcted tissue as defined by 2,3,5-triphenyltetrazolium chloride staining was determined in rabbits at 28 h...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1996.13.583

    authors: Browning JL,Widmayer MA,Hoffmann KK,Dudley AW Jr,Baskin DS

    更新日期:1996-10-01 00:00:00

  • Prolonged mild therapeutic hypothermia versus fever control with tight hemodynamic monitoring and slow rewarming in patients with severe traumatic brain injury: a randomized controlled trial.

    abstract::Although mild therapeutic hypothermia is an effective neuroprotective strategy for cardiac arrest/resuscitated patients, and asphyxic newborns, recent randomized controlled trials (RCTs) have equally shown good neurological outcome between targeted temperature management at 33 °C versus 36 °C, and have not shown consi...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章,随机对照试验

    doi:10.1089/neu.2013.3197

    authors: Maekawa T,Yamashita S,Nagao S,Hayashi N,Ohashi Y,Brain-Hypothermia Study Group.

    更新日期:2015-04-01 00:00:00

  • Predicting Outcomes after Severe and Moderate Traumatic Brain Injury: An External Validation of Impact and Crash Prognostic Models in a Large Spanish Cohort.

    abstract::Prognostic models that were developed by the International Mission on Prognosis and Analysis of Clinical Trials in Traumatic Brain Injury (IMPACT) study group and the Corticosteroid Randomization After Signification Head injury (CRASH) collaborators are the most commonly used prognostic models for outcome after trauma...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2015.4182

    authors: Castaño-Leon AM,Lora D,Munarriz PM,Cepeda S,Paredes I,de la Cruz J,Gómez Lopez PA,Lagares A

    更新日期:2016-09-01 00:00:00

  • Quinolinic acid accumulation in injured spinal cord: time course, distribution, and species differences between rat and guinea pig.

    abstract::Experimental compression injury of the spinal cord in guinea pigs results in delayed neurologic deficits that continue to increase in severity for several days following trauma, coincident with inflammatory responses, including invasion of the lesion by mononuclear phagocytes and increased levels of the neurotoxin qui...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.1997.14.89

    authors: Blight AR,Leroy EC Jr,Heyes MP

    更新日期:1997-02-01 00:00:00

  • Early Changes in Cortical Emotion Processing Circuits after Mild Traumatic Brain Injury from Motor Vehicle Collision.

    abstract::Mild traumatic brain injury (mTBI) patients frequently experience emotion dysregulation symptoms, including post-traumatic stress. Although mTBI likely affects cortical activation and structure, resulting in cognitive symptoms after mTBI, early effects of mTBI on cortical emotion processing circuits have rarely been e...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2015.4392

    authors: Wang X,Xie H,Cotton AS,Brickman KR,Lewis TJ,Wall JT,Tamburrino MB,Bauer WR,Law K,McLean SA,Liberzon I

    更新日期:2017-01-15 00:00:00

  • Costs of care after traumatic brain injury.

    abstract::Traumatic brain injuries (TBI) impose a significant burden on the health care system. The aim of the current study was to explore variation in costs in a group of rehabilitation patients in Victoria, Australia, following complicated mild-to-severe TBI treated under the accident compensation system administered by the ...

    journal_title:Journal of neurotrauma

    pub_type: 杂志文章

    doi:10.1089/neu.2012.2843

    authors: Ponsford JL,Spitz G,Cromarty F,Gifford D,Attwood D

    更新日期:2013-09-01 00:00:00