Abstract:
BACKGROUND AND PURPOSE:The current work is based on our previous finding that in neuronal cells, nmol/L concentrations of alpha-tocotrienol (TCT), but not alpha-tocopherol (TCP), blocked glutamate-induced death by suppressing early activation of c-Src kinase and 12-lipoxygenase. METHODS:The single neuron microinjection technique was used to compare the neuroprotective effects of TCT with that of the more widely known TCP. Stroke-dependent brain tissue damage was studied in 12-Lox-deficient mice and spontaneously hypertensive rats orally supplemented with TCT. RESULTS:Subattomole quantity of TCT, but not TCP, protected neurons from glutamate challenge. Pharmacological as well as genetic approaches revealed that 12-Lox is rapidly tyrosine phosphorylated in the glutamate-challenged neuron and that this phosphorylation is catalyzed by c-Src. 12-Lox-deficient mice were more resistant to stroke-induced brain injury than their wild-type controls. Oral supplementation of TCT to spontaneously hypertensive rats led to increased TCT levels in the brain. TCT-supplemented rats showed more protection against stroke-induced injury compared with matched controls. Such protection was associated with lower c-Src activation and 12-Lox phosphorylation at the stroke site. CONCLUSIONS:The natural vitamin E, TCT, acts on key molecular checkpoints to protect against glutamate- and stroke-induced neurodegeneration.
journal_name
Strokejournal_title
Strokeauthors
Khanna S,Roy S,Slivka A,Craft TK,Chaki S,Rink C,Notestine MA,DeVries AC,Parinandi NL,Sen CKdoi
10.1161/01.STR.0000181082.70763.22subject
Has Abstractpub_date
2005-10-01 00:00:00pages
2258-64issue
10eissn
0039-2499issn
1524-4628pii
01.STR.0000181082.70763.22journal_volume
36pub_type
杂志文章相关文献
STROKE文献大全abstract::To study the effects of antithrombotic therapy in experimental stroke, we have characterized a baboon model of acute cerebrovascular thrombosis. In this model an inflatable silastic balloon cuff has been implanted by transorbital approach around the right middle cerebral artery (MCA), proximal to the take-off of the l...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.17.6.1254
更新日期:1986-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Elevated soluble CD40 ligand (sCD40L) was shown to be related to cardiovascular events, but the role of sCD40L in predicting recurrent stroke remains unclear. METHODS:Baseline sCD40L levels were measured in 3044 consecutive patients with acute minor stroke and transient ischemic attack, who had ...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/STROKEAHA.115.008685
更新日期:2015-07-01 00:00:00
abstract::Recent success with thrombolytic therapy for acute myocardial infarction has stimulated interest in its use for stroke. To determine the hemorrhagic potential of thrombolytic therapy in experimental cerebral infarction, we compared a group of tissue plasminogen activator-treated rabbits (n = 4) with 2 groups of strept...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.18.6.1148
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Homocysteine has been linked to increased risk of ischemic stroke and other cardiovascular events. Matrix degradation and inflammation play an important role in these disorders, and we have demonstrated increased levels of matrix-degrading enzymes and inflammatory cytokines in hyperhomocysteinemi...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/STROKEAHA.108.522995
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Coated-platelets, a subset of procoagulant platelets observed on dual agonist stimulation with collagen and thrombin, support a robust prothrombinase activity and provide a unique measure of platelet thrombotic potential. Coated-platelet levels are increased in large artery stroke, and higher lev...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.114.006492
更新日期:2014-10-01 00:00:00
abstract::Hyperventilation to extremely low arterial carbon dioxide tension (PaCO2) has been used in the management of persistent pulmonary hypertension in newborn infants. With progressive hypocarbia, cerebral vasoconstriction occurs, raising the concern that extreme hypocarbia may result in cerebral oxygen deprivation. Theref...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.19.11.1365
更新日期:1988-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Inflammatory and immune mechanisms can precipitate cerebrovascular thrombosis and hemorrhage. Immunologic tolerance can be induced to a specific antigen by intranasal instillation of that antigen. Lymphocytes tolerized in this way provide local immunosuppression on restimulation with the same ant...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.0000029821.82531.8b
更新日期:2002-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Intracranial arterial dolichoectasia (IADE) is a poorly understood arteriopathy compared with intracranial atherosclerotic stenosis (ICAS). We aimed to investigate the risk factors of IADE and ICAS and their relationship with neuroimaging markers of cerebral small vessel disease in a population-b...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.117.020130
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:In most European societies and in the United States, the percentage of patients ≥80 years has been rising over the past century. The present study was conducted to observe this demographic change and its impact on patients with intracerebral hemorrhage (ICH). METHODS:We reviewed patients' data w...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.644716
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The efficacy and safety of the selective serotonin reuptake inhibitor fluoxetine have rarely been studied in the treatment of poststroke emotional disturbances. METHODS:Stroke patients (152) who had poststroke depression (PSD), emotional incontinence (PSEI), or anger proneness (PSAP) were studie...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/01.STR.0000190892.93663.e2
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Transtemporal insonation in transcranial Doppler sonography is often impaired by an insufficient signal-to-noise ratio, especially in elderly patients. A transpulmonary stable air microbubble suspension was injected intravenously in humans as an intracranial ultrasonic contrast agent. METHODS:In...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.str.24.12.1903
更新日期:1993-12-01 00:00:00
abstract::The plasma concentrations of protein C, an anticoagulant protein, and fibrinopeptide A were measured in 37 patients with acute hemispheric stroke and in age-matched controls with nonvascular neurologic diseases. In 11 stroke patients who died within 15 days after the onset (nonsurvivors) protein C antigen concentratio...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.19.5.579
更新日期:1988-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Identification of single-nucleotide polymorphisms (SNPs) associated with increased risk of new intracranial hemorrhage (ICH) after brain arteriovenous malformation (BAVM) diagnosis would facilitate risk stratification and identify potential targets for therapeutic intervention. METHODS:Patients ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000195133.98378.4b
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although the cause of stroke among patients with patent foramen ovale (PFO) may be due to paradoxical cerebral embolism (PCE), this mechanism is often difficult to prove. The aim of our study was to evaluate the association between brain imaging findings suggestive of embolism and PFO among ische...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.29.5.944
更新日期:1998-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The use of thrombolysis in acute minor ischemic stroke (MIS) remains controversial. We sought to determine the safety and efficacy of intravenous tissue-type plasminogen activator (IV-tPA) in acute MIS patients with demonstrable penumbra on computed tomographic perfusion study. METHODS:Consecuti...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.116.013021
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We aimed to investigate the associations of dietary and total potassium, magnesium, and calcium intakes with stroke occurrence. METHODS:A prospective cohort study was conducted among 36 094 participants aged 21 to 70 years. Dietary intake was assessed with a food frequency questionnaire. RESULT...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.004032
更新日期:2014-04-01 00:00:00
abstract::Results from 1,039 combined cervical and transcranial Doppler examinations are reported. Satisfactory transcranial signals were not found in 2.7% of the cases. Compared with angiography, the accuracy of transcranial criteria in assessing collateral flow over the circle of Willis was 94 and 88% for anterior and posteri...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.18.6.1018
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Microembolic signals (MESs) are detectable within the transcranial Doppler frequency spectrum downstream from vascular atherothrombotic or cardiothrombotic lesions. A frequent occurrence of MESs has also been shown during bypass surgery or after mechanical valve implantation. We sought to compile...
journal_title:Stroke
pub_type: 杂志文章,评审
doi:10.1161/STROKEAHA.107.491241
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cerebral amyloid angiopathy (CAA) occurs as a sporadic disorder in aged humans, as a frequent component of Alzheimer's disease, or in hereditary cerebral hemorrhage with amyloidosis (HCHWA). The primary histological locus of cerebral amyloid deposition varies in aged humans and in different speci...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.11.2080
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Several prospective studies have shown significant associations between plasma fibrinogen, viscosity, C-reactive protein (CRP), fibrin D-dimer, or tissue plasminogen activator (tPA) antigen and the risk of primary cardiovascular events. Little has been published on the associations of these varia...
journal_title:Stroke
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1161/01.STR.0000181754.38408.4c
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The Thrombolytic Therapy in Acute Ischemic Stroke Study, which started in August of 1991, was designed to assess the efficacy and safety of intravenous rtPA (alteplase) in patients with acute (0 to 6 hours) ischemic stroke. In October 1993 enrollment was halted because of Safety Committee (DMSB) ...
journal_title:Stroke
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1161/01.str.31.4.811
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:A simple method of testing cerebral autoregulation by observing transcranial Doppler changes in middle cerebral artery flow velocity (FV) during a brief ipsilateral carotid artery compression (the transient hyperemic response test) was studied in 11 normal healthy volunteers. The aim of this stud...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.12.2197
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We sought to investigate whether the combination of blood flow measurements in the major cerebral arteries and measurements of cerebral metabolism can provide new insight into the hemodynamic effect of carotid lesions in patients with severe stenosis (> 70% reduction in diameter) of the internal ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.11.2026
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Multimodal CT imaging consisting of nonenhanced CT, CT angiography (CTA), and whole-brain volume perfusion CT is increasingly used for acute stroke imaging. In these patients, presence of vessel occlusion is an important factor governing treatment decisions and possible endovascular therapy. The ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.630954
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Pretreatment lesion size on diffusion-weighted imaging (DWI) is a risk factor for symptomatic intracerebral hemorrhage (sICH) associated with thrombolytic treatment. Here, we investigated whether the Alberta Stroke Programme Early CT Score (ASPECTS) applied to DWI images (DWI-ASPECTS) predicts sI...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/STROKEAHA.109.550111
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:To study the longitudinal relationship of functional change in walking ability and change in time-dependent covariates and to develop a multivariate regression model to predict longitudinal change of walking ability. METHODS:A total of 101 acute stroke patients with first-ever ischemic middle ce...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/01.STR.0000190839.29234.50
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cavernous malformations of the brain (CMs) cause intracranial hemorrhage, but its reported frequency varies, partly attributable to study design. To improve the validity of future research, we aimed to develop a robust definition of CM hemorrhage. METHODS:We systematically reviewed the published...
journal_title:Stroke
pub_type: 共识发展会议,指南,杂志文章,评审
doi:10.1161/STROKEAHA.108.515544
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Silent brain infarction (SBI) is often found with white matter hyperintensity. A recent genetic study on elderly twins indicated that the susceptibility to white matter hyperintensity was largely determined by genetic factors, implying the existence of genetic susceptibility for SBI as well. We t...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.30.9.1881
更新日期:1999-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Studies have suggested that the early excess risk of stroke in coronary artery bypass grafting (CABG) may be compensated for by a slow but progressive catch-up phenomenon in patients undergoing percutaneous coronary intervention (PCI). We therefore undertook this analysis to compare the temporal ...
journal_title:Stroke
pub_type: 杂志文章,meta分析,评审
doi:10.1161/STROKEAHA.113.003323
更新日期:2014-01-01 00:00:00
abstract::Background and Purpose- The ESCAPE trial (The Endovascular Treatment for Small Core and Anterior Circulation Proximal Occlusion With Emphasis on Minimizing CT to Recanalization Times) was a multicentre, randomized controlled trial of endovascular thrombectomy versus standard care for patients with acute ischemic strok...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.118.024096
更新日期:2019-04-01 00:00:00