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 quinolinic acid (QUIN). Inflammatory responses and QUIN elevation also occur following spinal cord contusion in rats, but maximal neurologic deficits develop immediately. In this study, somatosensory evoked potentials (SEP) and tissue, serum, and cerebrospinal fluid levels of QUIN were measured in guinea pigs and rats following similar compression injuries of the thoracic spinal cord. SEP changes differed between the species, consistent with other neurological changes. In guinea pigs, increases in QUIN levels at the lesion site began at 1 day postinjury, achieved maximal elevation (100-fold) by 12 days, then declined, but remained above serum levels at 25 days postinjury. A similar increase occurred in adjacent areas of the spinal cord, with lower peak levels. In rats, tissue QUIN at the center of the lesion remained below serum levels at all times, increasing moderately (<10-fold) up to 7 days, then decreasing between 7 and 25 days. These data demonstrate differences in the time course and magnitude of QUIN accumulation and neurological deficit between guinea pig and rat, which may relate to differences in secondary pathological mechanisms. Such profound differences may affect the use of these species for evaluation of experimental therapy in this and other inflammatory conditions of the central nervous system.
journal_name
J Neurotraumajournal_title
Journal of neurotraumaauthors
Blight AR,Leroy EC Jr,Heyes MPdoi
10.1089/neu.1997.14.89subject
Has Abstractpub_date
1997-02-01 00:00:00pages
89-98issue
2eissn
0897-7151issn
1557-9042journal_volume
14pub_type
杂志文章abstract::We measured quantitative cortical mantle cerebral blood flow (CBF) by stable xenon computed tomography (CT) within the first 12 h after severe traumatic brain injury (TBI) to determine whether neurologic outcome can be predicted by CBF stratification early after injury. Stable xenon CT was used for quantitative measur...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2147
更新日期:2012-03-20 00:00:00
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
更新日期:2017-07-15 00:00:00
abstract::Recently, locomotor training has been shown to improve overground locomotion in patients with spinal cord injury (SCI). This has triggered renewed interest in the role of exercise in rehabilitation after SCI. However, there are no mouse models for voluntary exercise and recovery of function following SCI. Here, we rep...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2005.22.157
更新日期:2005-01-01 00:00:00
abstract::ICP monitoring per se has never been subjected to a prospective randomized clinical trial (PRCT) to establish its efficacy (or lack thereof) in improving outcome from severe head injury. Hence, there are insufficient data to support its use as a standard. However, there is a large body of published clinical experience...
journal_title:Journal of neurotrauma
pub_type: 指南,杂志文章,实务指引,评审
doi:10.1089/neu.2000.17.479
更新日期:2000-06-01 00:00:00
abstract::Spinal cord injury caused by stab wounds (SCISW) results from a partial or complete transection of the cord, and presents opportunities for interventional research. It is recognized that there is low incidence, but little is known about the natural history or the patient's suitability for long-term clinical outcome st...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4375
更新日期:2016-08-01 00:00:00
abstract::In human diffuse axonal injury (DAI), axons are exposed to transient tensile strain. Over the ensuing several hours, injured axons enter a "pathological cascade" of events that lead to secondary axotomy. Use of animal models of traumatic axonal injury (TAI) has allowed description of a number of pathological changes b...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1999.16.1225
更新日期:1999-12-01 00:00:00
abstract::Following a traumatic brain injury (TBI), excessive release of proinflammatory cytokines is the major cause of cerebral edema and neuronal loss. This study was designed to examine changes in concentrations of some proinflammatory cytokines-including interleukin-1 beta (IL-1β), interleukin 6 (IL-6), tumor necrosis fact...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2010.1686
更新日期:2013-01-01 00:00:00
abstract::Efforts to understand spinal cord injury (SCI) and other complex neurotrauma disorders at the pre-clinical level have shown progress in recent years. However, successful translation of basic research into clinical practice has been slow, partly because of the large, heterogeneous data sets involved. In this sense, tra...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2014.3399
更新日期:2014-11-01 00:00:00
abstract::Plasma tau and glial fibrillary acidic protein (GFAP) are promising biomarkers for identifying traumatic brain injury (TBI) patients with intracranial trauma on computed tomography (CT). Accuracy in older adults with mild TBI (mTBI), the fastest growing TBI population, is unknown. Our aim was to assess for age-related...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5694
更新日期:2018-10-15 00:00:00
abstract::Traumatic brain injury (TBI) causes high rates of worldwide death and morbidity because of the complex secondary injury cascade. Circular ribonucleic acid (RNA) (circRNA), a type of RNA that forms a covalently closed continuous loop, may be involved in the regulation of secondary injury because it is expressed widely ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5647
更新日期:2019-04-01 00:00:00
abstract::Traumatic brain injury (TBI) results in an accumulation of edema and loss of brain tissue. Progesterone (PROG) has been reported to reduce edema and cortical tissue loss in a bilateral prefrontal cortex injury. This study tests the hypothesis that PROG is neuroprotective following a unilateral parietal cortical contus...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2007.0477
更新日期:2008-06-01 00:00:00
abstract::Traumatic spinal cord injury (SCI) can cause permanent disabilities that seriously reduce quality of life. We evaluated the effects of chronic hyperglycemia before SCI on inflammatory markers and functional recovery after SCI in human patients and a rat model. In the human study, multivariate logistical regression ana...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2019.6724
更新日期:2020-05-01 00:00:00
abstract::Researchers studying the impact of treatments designed to facilitate recovery after neural injury face competing demands. On the one hand, because treatment effects often emerge slowly over days, and because researchers seek evidence of stable long-term effects, it is common practice to observe experimental subjects f...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/089771504772695995
更新日期:2004-01-01 00:00:00
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
更新日期:1998-06-01 00:00:00
abstract::Task-specific rehabilitation has been shown to promote functional recovery after acute spinal cord injury (SCI). Recently, the omega-3 polyunsaturated fatty acid, docosahexaenoic acid (DHA), has been shown to promote neuroplasticity after SCI. Here, we investigated whether the combination of a single bolus of DHA with...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2016.4556
更新日期:2017-05-01 00:00:00
abstract::Controlled cortical impact (CCI) is a contemporary model of experimental cerebral contusion. We examined the cerebrovascular and neuropathologic effects of a severe CCI in rats. The utility of magnetic resonance imaging (MRI) for the assessment of contusion volume after severe CCI was also established. Severe CCI (3.0...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1995.12.1015
更新日期:1995-12-01 00:00:00
abstract::It has been demonstrated that ethanol exerts dose-dependent effects, both beneficial and detrimental, on the outcome of traumatic brain injury (TBI). Recently, it has been reported that co-administration of caffeine (10 mg/kg) and a low amount of alcohol (0.65 g/kg; caffeinol) reduces cortical infarct volume up to 80%...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2004.21.1573
更新日期:2004-11-01 00:00:00
abstract::An impaired ability to regulate microglia activation by fractalkine (CX3CL1) leads to microglia chronic sub-activation. How this condition affects outcome after acute brain injury is still debated, with studies showing contrasting results depending on the timing and the brain pathology. Here, we investigated the early...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4041
更新日期:2016-06-01 00:00:00
abstract::Endothelial barrier antigen (EBA) is a protein triplet located in the plasma membrane of microvascular endothelium and selectively expressed in the normal nervous system. In this study, microvascular alterations following traumatic brain injury were studied using EBA immunohistochemistry. Anesthetized, physiologically...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/089771501750170958
更新日期:2001-04-01 00:00:00
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
更新日期:2013-09-01 00:00:00
abstract::Posttraumatic amnesia (PTA) is a common symptom following traumatic brain injury. Although this transient memory deficit implies specific impairment of higher brain function, the actual pathophysiology of PTA is not well understood. The aim of this study was to assess regional cerebral hemodynamics with perfusion comp...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2010.1395
更新日期:2010-12-01 00:00:00
abstract::Mild traumatic brain injury (mTBI) accounts for the vast majority of all pediatric TBI. An important minority of children who have suffered an mTBI have enduring cognitive and emotional symptoms. However, the mechanisms of chronic symptoms in children with pediatric mTBI are not fully understood. This is in part due t...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2019.6417
更新日期:2020-04-01 00:00:00
abstract::Early decompression may improve neurological outcome after spinal cord injury (SCI), but is often difficult to achieve because of logistical issues. The aims of this study were to 1) determine the time to decompression in cases of isolated cervical SCI in Australia and New Zealand and 2) determine where substantial de...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.4207
更新日期:2016-06-15 00:00:00
abstract::The EPO-TBI multi-national randomized controlled trial found that erythropoietin (EPO), when compared to placebo, did not affect 6-month neurological outcome, but reduced illness severity-adjusted mortality in patients with traumatic brain injury (TBI), making the cost-effectiveness of EPO in TBI uncertain. The curren...
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.2018.6229
更新日期:2019-09-01 00:00:00
abstract::Glycosylation is a fundamental cellular process that has a dramatic impact on the functionality of glycoconjugates such as proteins or lipids and mediates many different biological interactions including cell migration, cellular signaling, and synaptic interactions in the nervous system. In spinal cord injury (SCI), a...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2019.6974
更新日期:2020-09-15 00:00:00
abstract::Closed-head concussive injury is one of the most common causes of traumatic brain injury (TBI). While single concussions result in short-term neurologic dysfunction, multiple concussions can result in cumulative damage and increased risk for neurodegenerative disease. Despite the prevalence of concussion, knowledge ab...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2057
更新日期:2012-01-20 00:00:00
abstract::Post-traumatic amnesia (PTA) is an acute characteristic of traumatic brain injury (TBI) and the duration of PTA is commonly used to estimate the severity of brain injury. In the context of mild traumatic brain injury (MTBI), PTA is an essential part of the routine clinical assessment. Macroscopic lesions in temporal l...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2013.2978
更新日期:2014-07-01 00:00:00
abstract::Spinal cord injury (SCI) frequently results in chronic neuropathic pain (CNP). However, the understanding of brain neural circuits in CNP modulation is unclear. The present study examined the changes of ventral tegmental area (VTA) putative GABAergic and dopaminergic neuronal activity with CNP attenuation in rats. SCI...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2017.5381
更新日期:2018-08-01 00:00:00
abstract::The effects of ethanol intoxication on brain injury and cerebral blood flow (CBF) were investigated in a porcine fluid-percussion model of traumatic brain injury (TBI). Immature swine, under halothane anesthesia (1%), had a TBI delivered with a fluid-percussion device. The experimental group (n = 10) received ethanol ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1993.10.275
更新日期:1993-10-01 00:00:00
abstract::Traumatic Brain Injury (TBI) can be associated with partial or total smell loss. Recent studies have suggested that olfactory outcome can be positively modulated after olfactory training (OT). This study's aim was to investigate OT's potential role in smell recovery after TBI-induced olfactory loss. A prospective, ran...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,随机对照试验
doi:10.1089/neu.2017.5230
更新日期:2018-11-15 00:00:00