Abstract:
:Acute changes in cerebral perfusion and metabolism after subarachnoid hemorrhage (SAH) have been shown to contribute significantly to acute brain injury. The purpose of this study was to examine the effects of moderate hypothermia on the acute changes after massive experimental SAH as evaluated by diffusion-weighted imaging (DWI) and magnetic resonance spectroscopy (MRS). SAH in rats was induced by injection of 0.5 mL of arterial blood. Normothermic animals (NT, n = 10) were kept at 37.0 +/- 0.2 degrees C, while temperature was lowered to 32.0 +/- 0.2 degrees C in the primary hypothermia group (pHT, n = 10) prior to SAH and in the secondary hypothermia group (sHT, n = 10) immediately after SAH. DWI and MRS were performed from 30 min prior up to 3 h after injury. The apparent diffusion coefficient (ADC) was measured in cortical and hippocampal regions of interest (ROIs). MRS included lactate, N-acetyl aspartate (NAA), and creatine in a central voxel. DWI showed a generalized, significant decline in ADC after SAH in NT. Significant change in ADC in pHT was absent, and accelerated recovery for animals in sHT was noted. MRS analysis revealed significant lactate accumulation to 204 +/- 40% from baseline only in NT, while sHT was characterized by a transient, less pronounced increase of lactate (159 +/- 11%) and lactate in pHT did not change significantly (117 +/- 11%). NAA did not change significantly when compared to baseline or between groups for NT, pHT, or sHT. Creatine rose significantly to 166 +/- 27% in NT after the insult, indicating increased metabolic stress which was absent in pHT (106 +/- 8%) and sHT (124 +/- 18%). Hypothermia can ameliorate early development of cytotoxic edema, lactate accumulation, and a general metabolic stress response after SAH, even when started after the insult. Our study indicates that a potentially beneficial influence on metabolism and cerebral perfusion in this crucial phase is practicable and might hold the key to further improve outcome in SAH.
journal_name
J Neurotraumajournal_title
Journal of neurotraumaauthors
Schubert GA,Poli S,Schilling L,Heiland S,Thomé Cdoi
10.1089/neu.2007.0443subject
Has Abstractpub_date
2008-07-01 00:00:00pages
841-52issue
7eissn
0897-7151issn
1557-9042journal_volume
25pub_type
杂志文章abstract::Accurate localization of cerebrospinal fluid (CSF) fistula in a patient with CSF rhinorrhea is challenging and often involves multiple imaging studies with associated expense and patient discomfort. Intrathecal contrast-enhanced computed tomography (CT) and unenhanced magnetic resonance (MR) cisternography using const...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2007.0326
更新日期:2007-10-01 00:00:00
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
更新日期:2018-10-01 00:00:00
abstract::The Balance Error Scoring System (BESS) is a commonly used concussion assessment tool. Recent studies have questioned the stability and reliability of baseline BESS scores. The purpose of this longitudinal prospective cohort study is to examine differences in yearly baseline BESS scores in athletes participating on an...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2017.5072
更新日期:2018-02-15 00:00:00
abstract::Predicting outcome after pediatric traumatic brain injury (TBI) is important for providing information to families and prescribing rehabilitation services. Previously published studies evaluating the ability of serum biomarkers to predict outcome after pediatric TBI have focused on three markers: neuron-specific enola...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.1989
更新日期:2012-01-01 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::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
更新日期:2003-09-01 00:00:00
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
更新日期:2013-12-01 00:00:00
abstract::Mild traumatic brain injury (mTBI) has gained considerable notoriety during the past decade of conflict in Afghanistan and Iraq. However, the relationship between combat-related mTBI and residual mTBI symptoms, post-traumatic stress disorder (PTSD) symptoms, and neurocognitive deficits remains unclear. The purpose of ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2012.2506
更新日期:2013-04-15 00:00:00
abstract::Neuropsychological studies in electrical injury patients have reported deficits in attention, learning, and working memory, but the neural substrates of these deficits remain poorly characterized. In this study we sought to examine whether electrical injury subjects demonstrate abnormal patterns of brain activation du...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2008.0867
更新日期:2009-10-01 00:00:00
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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
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/089771504323004557
更新日期:2004-04-01 00:00:00
abstract::The severity of injury to cardiovascular autonomic pathways following clinical spinal cord injury (SCI) can be evaluated with spectral analyses. Whether this technique provides a translatable assessment of cardiovascular autonomic function in rodent SCI is unknown. Beat-to-beat blood pressure and pulse interval were m...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2145
更新日期:2012-05-20 00:00:00
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::Ocular blast injury is a major medical concern for soldiers and explosion victims due to poor visual outcomes. To define the changes in gene expression following a blast injury to the eye, we examined retinal ribonucleic acid (RNA) expression in 54 mouse strains 5 days after a single 50-psi overpressure air wave blast...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2017.5104
更新日期:2018-01-01 00:00:00
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
更新日期:2000-03-01 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
abstract::The rate of paroxysmal sympathetic hyperactivity (PSH) was retrospectively assessed using the Paroxysmal Sympathetic Hyperactivity-Assessment Measure (PSH-AM) scale in patients with disorders of consciousness attributed to traumatic and non-traumatic acquired brain injury during the rehabilitation phase. These results...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2018.5963
更新日期:2019-08-15 00:00:00
abstract::This study characterizes the histological and immunohistochemical changes in the adult rat spinal cord following photochemically induced spinal cord lesions. The spinal cord was exposed by laminectomy (T12-L1 vertebrae) and bathed with 1.5% rose bengal solution for 10 min. The excess dye was removed by saline rinse an...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/089771503765355559
更新日期:2003-05-01 00:00:00
abstract::Penetrating brain injury (PBI) is the most devastating type of traumatic brain injury. Development of coagulopathy in the acute setting of PBI, though common, remains of unclear significance as does its reversal. The aim of this study is to investigate the relationship between coagulopathy and clinical presentation, r...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2020.7422
更新日期:2021-01-20 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
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journal_title:Journal of neurotrauma
pub_type: 杂志文章
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journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/neu.2008.0588
更新日期:2009-03-01 00:00:00
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
更新日期:2012-01-01 00:00:00
abstract::Penetrating traumatic brain injury (PTBI) is one of the major cause of death and disability worldwide. Previous studies with penetrating ballistic-like brain injury (PBBI), a PTBI rat model revealed widespread perilesional neurodegeneration, similar to that seen in humans following gunshot wound to the head, which is ...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2016.4602
更新日期:2017-06-01 00:00:00
abstract::In various animal and human studies, early administration of 17β-estradiol, a strong antioxidant, anti-inflammatory, and anti-apoptotic agent, significantly decreases the severity of injury in the brain associated with cell death. Estrone, the predominant estrogen in postmenopausal women, has been shown to be a promis...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2011.2274
更新日期:2012-08-10 00:00:00
abstract::Worldwide, different strategies are being applied for symptomatic chronic subdural hematoma (CSDH). The aim of this study was to evaluate the efficacy of two treatment strategies for symptomatic CSDH: initial dexamethasone (DXM) therapy versus primary surgery by burr hole craniostomy (BHC). We retrospectively collecte...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2019.6541
更新日期:2020-01-15 00:00:00
abstract::Concussive brain injury (CBI) accounts for approximately 75% of all brain-injured people in the United States each year and is particularly prevalent in contact sports. Concussion is the mildest form of diffuse traumatic brain injury (TBI) and results in transient cognitive dysfunction, the neuropathologic basis for w...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2010.1729
更新日期:2011-04-01 00:00:00
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
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更新日期:2020-03-01 00:00:00
abstract::Clinical studies have documented the importance of secondary brain insults in determining neurologic outcome after head injury. Delayed intracranial hematomas are one of the most easily remediable causes of secondary injury if identified early, but can cause significant disability or death if not promptly recognized a...
journal_title:Journal of neurotrauma
pub_type: 杂志文章,评审
doi:10.1089/neu.1995.12.591
更新日期:1995-08-01 00:00:00
abstract::Non-human primate (NHP) models of spinal cord injury better reflect human injury and provide a better foundation to evaluate potential treatments and functional outcomes. We combined finite element (FE) and surrogate models with impact data derived from in vivo experiments to define the impact mechanics needed to gene...
journal_title:Journal of neurotrauma
pub_type: 杂志文章
doi:10.1089/neu.2015.3974
更新日期:2016-06-15 00:00:00