Abstract:
:Anecdotal observations of blast victims indicate that significant neuropathological and neurobehavioral defects may develop at later stages of life. To pre-clinically model this phenomenon, we have examined neurobehavioral changes in rats up to 1 year after exposure to single and tightly coupled repeated blasts using an advanced blast simulator. Neurobehavioral changes were monitored at acute, sub-acute, and chronic time-points using Morris water maze test of spatial learning and memory, novel object recognition test of short-term memory, open field exploratory activity as a test of anxiety/depression, a rotating pole test for vestibulomotor function, and a rotarod balance test for motor coordination. Single and repeated blasts resulted in significant functional deficits at both acute and chronic time-points. In most functional tests, rats exposed to repeated blasts performed more poorly than rats exposed to single blast. Interestingly, several functional deficits post-blast were most pronounced at 6 months and beyond. Significant neuromotor impairments occurred at early stages after blast exposure and the severity increased with repeated exposures. The novel object recognition testing revealed short-term memory deficits at 6 and 12 months post-blast. The water maze test revealed impairments at acute and chronic stages after blast exposure. The most substantial changes in the blast-exposed rats were observed with the center time and margin time legacies in the open field exploration test at 6, 9, and 12 months post-blast. Notably, these two outcome measures were minimally altered acutely, recovered during sub-acute stages, and were markedly affected during the chronic stages after blast exposures and may implicate development of chronic anxiety and depressive-like behaviors.
journal_name
J Neurotraumajournal_title
Journal of neurotraumaauthors
Arun P,Wilder DM,Eken O,Urioste R,Batuure A,Sajja S,Van Albert S,Wang Y,Gist ID,Long JBdoi
10.1089/neu.2019.6591subject
Has Abstractpub_date
2020-02-15 00:00:00pages
647-655issue
4eissn
0897-7151issn
1557-9042journal_volume
37pub_type
杂志文章abstract::Spinal cord injury (SCI) launches a complex cascade of events that leads to progressive damage and loss of function. Compromise of plasma membrane integrity due to the mechanical impact is an acute event that may contribute to cellular dysfunction. Therefore, the objective of this study was to better understand the ex...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2008.0523
更新日期:2009-04-01 00:00:00
abstract::Quantitative gait measurements can identify persistent postconcussion impairments. However, their prognostic utility after injury to identify the likelihood of prolonged concussion symptoms remains unknown. Our objective was to examine if dual-task gait performance measures are independently associated with persistent...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2017.5191
更新日期:2017-12-01 00:00:00
abstract::Traumatic brain injury (TBI) is frequently complicated by acute lung injury, which is predictive for poor outcome. However, it is unclear whether lung injury develops independently or as a result of mechanical ventilation after TBI. Further, TBI is strongly associated with the development of pneumonia, suggesting a sp...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2013.3060
更新日期:2013-12-15 00:00:00
abstract::Blast injury to the brain is one of the major causes of death and can also significantly affect cognition and physical and psychological skills in survivors of blast. The complex mechanisms via which blast injury causes impairment of cognition and other symptoms are poorly understood. In this study, we investigated th...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2010.1591
更新日期:2012-05-01 00:00:00
abstract::Neuroimaging demonstrates that athletes of collision sports can suffer significant changes to their brain in the absence of concussion, due to head acceleration event (HAE) exposure. In a sample of 24 male Division I collegiate football players, we examine the relationships between TPH2, a gene involved in neurovascul...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2020.7016
更新日期:2021-01-07 00:00:00
abstract::This paper encompasses the prediction of early and late recovery from traumatic brain injury (TBI). Predictors of the duration of coma and the utilization of posttraumatic amnesia duration to predict residual memory function are discussed. The issues surrounding prediction of long-term neurobehavioral recovery from TB...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/neu.1995.12.913
更新日期:1995-10-01 00:00:00
abstract::The role of endothelin (ET) in the pathophysiology of secondary neural damage after experimental spinal cord injury (SCI) was examined in a rat model of weight-drop contusion injury. Initial studies demonstrated a significant increase in spinal ET concentrations in a 7.5-mm segment of tissue (centered at the impact si...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1996.13.93
更新日期:1996-02-01 00:00:00
abstract::Moderate hypothermia may reduce subsequent neuronal damage after traumatic brain injury. Interleukin (IL)-6 may have a role in the pathogenesis of traumatic neuronal damage or repair. Using the enzyme-linked immunological sorbent assay (ELISA), we serially measured IL-6 levels in plasma obtained from the radial artery...
journal_title:Journal of neurotrauma
pub_type: 临床试验,杂志文章
doi:10.1089/neu.1999.16.225
更新日期:1999-03-01 00:00:00
abstract::There is an urgent need for both the scientific development and clinical validation of novel therapies for acute spinal cord injury (SCI). The scientific development of novel therapies would be facilitated by a better understanding of the acute pathophysiology of human SCI. Clinical validation of such therapies would ...
journal_title:Journal of neurotrauma
pub_type: 临床试验,杂志文章
doi:10.1089/neu.2009.1080
更新日期:2010-04-01 00:00:00
abstract::Anatomical studies of spinal cord injury (SCI) using magnetic resonance imaging (MRI) report diverging observations, from "no changes" to "tissue atrophy in motor and non-motor regions." These discrepancies among studies can be attributed to heterogeneity in extent, level, and post-injury duration observed within the ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.6040
更新日期:2019-06-15 00:00:00
abstract::Traumatic brain injury (TBI) is associated with enhanced osteogenesis. The aim of this study was to investigate the effect of serum from TBI rats on fracture healing. Results from this study showed that the serum from TBI rats enhanced the expression of bone gamma carboxyglutamate protein (BGLAP), and promoted in vitr...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2012.2442
更新日期:2012-11-20 00:00:00
abstract::Noise exposure is known to induce cell death signaling in the cochlea. Since c-Jun N-terminal kinase (JNK) signaling is known to induce both cell survival and apoptosis, the present study focused on early changes (within 24 h) after impulse noise exposure, inquiring whether cell death is always related to phosphorylat...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2007.0346
更新日期:2008-01-01 00:00:00
abstract::Among the 3.5 million annual new head injury cases is a subpopulation of children and young adults who experience repeated traumatic brain injury (TBI). The duration of vulnerability after a single TBI remains unknown, and biomarkers have yet to be determined. Decreases in glucose metabolism (cerebral metabolic rate o...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2012.2399
更新日期:2013-01-01 00:00:00
abstract::Human head trauma is frequently associated with respiratory problems resulting in secondary hypoxic insult. To document the behavioral consequences of secondary hypoxia in an established model of traumatic brain injury (TBI), intubated anesthetized animals were subjected to fluid percussion (FP) injury (1.87-2.17 atm)...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1999.16.1035
更新日期:1999-11-01 00:00:00
abstract::Return to living at home is an important patient-reported outcome following traumatic spinal cord injury (tSCI). Specialized inpatient rehabilitation assists such patients in maximizing function and independence. Our project aim was to describe those patients receiving specialized rehabilitation after tSCI in Canada, ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2016.4930
更新日期:2017-10-15 00:00:00
abstract::Bone marrow stromal cells (BMSC) transplanted into the contused spinal cord may support repair by improving tissue sparing. We injected allogeneic BMSC into the moderately contused adult rat thoracic spinal cord at 15 min (acute) and at 3, 7, and 21 days (delayed) post-injury and quantified tissue sparing and BMSC sur...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2009.0987
更新日期:2009-12-01 00:00:00
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
更新日期:2001-11-01 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::The present study evaluated the effects of two novel N-methyl-D-aspartate (NMDA) receptor blockers and ifenprodil derivatives, CP-101,606 and CP-101,581, and their racemic mixture CP-98,113, on spatial memory and regional cerebral edema following experimental fluid-percussion (FP) brain injury in the rat (n = 66). Fif...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1997.14.211
更新日期:1997-04-01 00:00:00
abstract::The purpose of this study was to determine the relationship between endothelin-1 (ET-1), a prominent vasoactive agent, and the breakdown of the blood-spinal cord barrier along the axis of the cord after a moderate spinal cord injury. In the first study rats (n = 10) were euthanized 24 h after spinal cord injury and co...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.1995.12.257
更新日期:1995-06-01 00:00:00
abstract::Diagnosis and treatment of stroke and traumatic brain injury remain significant health care challenges to society. Patient care stands to benefit from an improved understanding of the interactive biochemistry underlying neurotrauma pathobiology. In this study, we assessed the power of neuroproteomics to contrast bioch...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2010.1374
更新日期:2010-10-01 00:00:00
abstract::This prospective multicenter study investigated the association of the course of coagulation abnormalities with initial computed tomography (CT) characteristics and outcome in patients with isolated traumatic brain injury (TBI). Patient demographics, coagulation parameters, CT characteristics, and outcome data of mode...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,多中心研究
doi:10.1089/neu.2011.2044
更新日期:2012-01-01 00:00:00
abstract::To compare the effect of levodopa-carbidopa on the visual outcome of patients with indirect traumatic optic neuropathy (ITON), this randomized, double-blind, placebo-controlled study was conducted on 32 patients with ITON within 6 days after trauma. Patients underwent a complete ocular examination, pattern visual evok...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,随机对照试验
doi:10.1089/neu.2010.1362
更新日期:2010-10-01 00:00:00
abstract::Pituitary adenylate cyclase activating polypeptide (PACAP) has several different actions in the nervous system. Numerous studies have shown its neuroprotective effects both in vitro and in vivo. Previously, it has been demonstrated that PACAP reduces brain damage in rat models of global and focal cerebral ischemia. Ba...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2006.23.686
更新日期:2006-05-01 00:00:00
abstract::Patients with spinal cord injury (SCI) typically experience body weight loss, motor function deficits, and a general decline of physical fitness. Animal models with these characteristics can serve to study the detailed adaptive changes following SCI. In the present study, we report the use of an adult paraplegic mouse...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/0897715041651060
更新日期:2004-08-01 00:00:00
abstract::Guidelines for patients with severe traumatic brain injury (sTBI) published in 2007 recommend providing early nutrition after trauma. Early enteral nutrition (EN) started within 48 h post-injury reduces clinical malnutrition, prevents bacterial translocation from the gastrointestinal tract, and improves outcome in sTB...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,多中心研究
doi:10.1089/neu.2011.1801
更新日期:2012-01-01 00:00:00
abstract::To examine the mechanism of the increase in cerebral blood flow induced by L-arginine administration after traumatic brain injury, the cerebral hemodynamic effects of L-arginine, D-arginine, and the free radical scavengers superoxide dismutase (SOD) and catalase were compared in the controlled cortical impact injury m...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/08977150360517209
更新日期:2003-01-01 00:00:00
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
更新日期:2008-09-01 00:00:00
abstract::Traumatic microvascular injury (tMVI) is a universal endophenotype of traumatic brain injury (TBI) that is responsible for significant neurological morbidity and mortality. The mechanism underlying tMVI is not fully understood. The present study aims to determine plasma levels of von Willebrand factor (VWF), a disinte...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5696
更新日期:2019-01-15 00:00:00
abstract::Rodent models of spinal cord injury are critical for the development of treatments for upper limb motor impairment in humans, but there are few methods for measuring forelimb strength of rodents, an important outcome measure. We developed a novel robotic device--the Robotic Rehabilitator of the Rodent Upper Extremity ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.3987
更新日期:2016-03-01 00:00:00