Abstract:
BACKGROUND AND PURPOSE:Cells lacking the ATM (ataxia telangectasia mutated) gene are hypersensitive to DNA damage caused by a variety of insults. ATM may regulate oxidative stress-induced signaling cascades involving nuclear factor-kappaB (NF-kappaB), a transcription factor that is upstream of a wide variety of stress-responsive genes. We investigated the potential interaction of ATM and NF-kappaB after oxygen-glucose deprivation (OGD) in cerebral endothelial cells (CECs). METHODS:Primary cultures of mouse CECs were subjected to OGD in the absence or presence of ATM antisense oligonucleotides or the NF-kappaB inhibitor SN50. ATM expression was determined with the use of reverse transcription-polymerase chain reaction and Western blot, and NF-kappaB activity was assessed by electrophoretic mobility shift assay. Cells were assessed for mitochondrial DNA damage with the use of long polymerase chain reaction and were assessed for caspase-3 and caspase-8 activity with the use of fluorogenic substrates. Cell death was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide and LDH release. RESULTS:OGD stimulated ATM gene expression at the mRNA and protein level in CECs as early as 1 hour after OGD initiation. ATM gene knockdown with the use of an antisense oligonucleotide suppressed OGD-induced ATM protein expression, which was accompanied by an attenuation of NF-kappaB activation and the subsequent expression of downstream genes, including the antiapoptotic gene c-IAP2. ATM knockdown also accentuated OGD-induced mitochondrial DNA damage and the activation of caspase-3 and caspase-8, leading to enhanced CEC death. The specific NF-kappaB inhibitor SN50 mimicked the effects of ATM knockdown. CONCLUSIONS:We conclude that ATM may play a cytoprotective role in OGD-induced CEC death via a NF-kappaB-dependent signaling pathway.
journal_name
Strokejournal_title
Strokeauthors
Yin KJ,Chen SD,Lee JM,Xu J,Hsu CYdoi
10.1161/01.str.0000030316.79601.03subject
Has Abstractpub_date
2002-10-01 00:00:00pages
2471-7issue
10eissn
0039-2499issn
1524-4628journal_volume
33pub_type
杂志文章相关文献
STROKE文献大全abstract::Clinical and pathologic observations have suggested analogies between the developing nervous system of ferrets (Mustela putorius furo) and those of more traditional animal models employed in stroke research. Experimental work has demonstrated advantages of the ferret as a model of visual development. We performed in v...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.20.8.1085
更新日期:1989-08-01 00:00:00
abstract::Cerebral blood flow was studied in rabbits immediately following complete circulatory stasis of varying duration. Systemic arterial pressure was measured continuously. The postischemic circulation was examined both by an infusion of carbon black and, in separate experiments, by injection of 14C-antipyrine into the blo...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.10.4.423
更新日期:1979-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although the stroke rate associated with atrial fibrillation has declined over the last 10 years, the emerging atrial fibrillation epidemic threatens to increase the incidence of cardioembolic stroke. Summary of Review-Oral anticoagulants are superior antithrombotic agents but are underused due t...
journal_title:Stroke
pub_type: 杂志文章,评审
doi:10.1161/STROKEAHA.110.589218
更新日期:2010-11-01 00:00:00
abstract::Among 21 patients with angiographically demonstrated stenosis of the middle cerebral artery (MCA) 14 presented with a stroke and 7 with transient ischaemic attacks (TIAs). Of the former 4 had further strokes (3 fatal); of the latter one had a fatal stroke. Only 2 of the 21 patients had TIAs during the follow-up period...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.15.2.237
更新日期:1984-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:In acute stroke care, rapid but careful evaluation of patients is mandatory but requires an experienced stroke neurologist. Telemedicine offers the possibility of bringing such expertise quickly to more patients. This study tested for the first time whether remote video examination is feasible an...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.STR.0000102043.70312.E9
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cerebral sinovenous thrombosis is a rare disease with severe neurological sequelae. The aim of this retrospective multicenter study was to investigate the clinical course, possible risk factors, and outcome of a cohort of neonatal patients with sinovenous thrombosis and, second, to estimate the i...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/STROKEAHA.110.583542
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Results from large multicenter studies have shown that carotid endarterectomy, performed with low perioperative morbidity and mortality, is beneficial for patients with symptomatic carotid stenosis > or = 70% as calculated according to strict angiographic criteria. To apply these results in clini...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.26.8.1325
更新日期:1995-08-01 00:00:00
abstract::Background and Purpose- The complexity and heterogeneity of stroke, as well as the associated comorbidities, may render neuroprotective drugs less efficacious in clinical practice. Therefore, the development of targeted therapies to specific patient subsets has become a high priority in translational stroke research. ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.118.022119
更新日期:2018-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Leukocytes have been implicated in the development of ischemic atherosclerotic vascular diseases. In a prospective study we investigated whether the plasma concentrations of inflammatory mediators, ie, proteases and cytokines, as markers for systemic leukocyte activation, are increased in patient...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.10.1734
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although the efficacy of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers in reducing future vascular events for patients with coronary heart disease is established, less is known about the precise benefit of these agents among patients with stroke. We evaluated whether ...
journal_title:Stroke
pub_type: 杂志文章,meta分析
doi:10.1161/STROKEAHA.111.632596
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We examined the possibility that activation of the human brain renin-angiotensin system is involved in enhancement of ischemic brain damage using chimeric transgenic mice with human renin (hRN) and human angiotensinogen (hANG) genes. METHODS:Chimeric (hRN/hANG-Tg) mice were generated by mating o...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.108.519801
更新日期:2009-02-01 00:00:00
abstract::Changes of regional cerebral blood flow from rest to mental activation by a visually presented spatial reasoning test were measured during normo- and hypercapnia in 10 healthy subjects. Hypercapnia, elicited by inhalation of 6% CO2, resulted in similar flow increases in all 32 cortical regions measured. Increases of f...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.11.4.342
更新日期:1980-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:To investigate the efficacy of bone marrow mononuclear cell (BMMNC) treatment against ischemic white matter (WM) damage in a hypoperfused brain. METHODS:Mice were administered intravenous treatment of vehicle, spleen-derived marrow mononuclear cells (MNCs), or BMMNCs (5 × 10⁶ cells) obtained fro...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.110.596379
更新日期:2010-12-01 00:00:00
abstract::In normothermic anesthetized cats cerebral blood flow was interrupted completely for one hour by arterial clamping and induced hypotension. The effect of ischemia on the ionic gradients of the cerebral cortex was assayed by determining total cortical electrolytes and by recording the activities of extracellular potass...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.8.1.77
更新日期:1977-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Sleep-disordered breathing (SDB) represents a risk factor for cardiovascular morbidity after a cerebral ischemic event (acute ischemic event, ischemic stroke, or transient ischemic attack). In the present study, endothelial function and arterial stiffness were analyzed in patients who experienced...
journal_title:Stroke
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1161/STROKEAHA.111.000112
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Patients with cerebral amyloid angiopathy (CAA) are at high risk for intracerebral hemorrhage (ICH), but no effective prevention strategies have been established. The objective is to determine whether lowering of blood pressure (BP) provides protection for this high-risk patient group. METHODS:T...
journal_title:Stroke
pub_type: 杂志文章,随机对照试验
doi:10.1161/STROKEAHA.109.563932
更新日期:2010-02-01 00:00:00
abstract::Experimental subarachnoid hemorrhage (SAH) was induced in baboons by repeated injections of autologous blood into cisterna chiasmatis and cisterna magna, a total of 14-33 ml being injected over 3-4 days. Cerebral blood flow (CBF; 133xenon clearance) and cerebral metabolic rate of oxygen (CMRO2) were measured before, a...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.17.2.220
更新日期:1986-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Recovery of patients within the first 6 months after stroke is well documented, but there has been little research on long-term recovery. The aim of this study was to analyze functional and motor recovery between admission to rehabilitation centres and 5 years after stroke. METHODS:This follow-u...
journal_title:Stroke
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1161/STROKEAHA.115.009421
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Multiple studies have shown that negative computed tomographic angiograms (CTAs) are reliable in excluding aneurysms in patients with isolated perimesencephalic subarachnoid hemorrhage (pSAH). We evaluate the use of digital subtraction angiography versus CTA for initial diagnosis and of angiograp...
journal_title:Stroke
pub_type: 杂志文章,meta分析
doi:10.1161/STROKEAHA.114.007370
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Statin use may be associated with improved outcome in intracerebral hemorrhage patients. However, the topic remains controversial. Our analysis examined the effect of prior, continued, or new statin use on intracerebral hemorrhage outcomes using the ERICH (Ethnic/Racial Variations of Intracerebra...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/STROKEAHA.117.017358
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The favorable cardiovascular effects attributed to adiponectin may lower risk of stroke. We investigated this in a prospective study and meta-analysis. METHODS:A case-cohort study nested within the Potsdam cohort of the European Prospective Investigation into Cancer was performed, with 170 incid...
journal_title:Stroke
pub_type: 杂志文章,meta分析
doi:10.1161/STROKEAHA.113.001851
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The role of early and delayed recanalization after thrombolysis in the development of hemorrhagic transformation (HT) subtypes remains uncertain. We sought to explore the association between the timing of recanalization and HT risk in patients with proximal middle cerebral artery (MCA) occlusion ...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.str.0000016323.13456.e5
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:It is unclear whether blood lipid profiles and statin use before intracerebral hemorrhage (ICH) are associated with its outcome. METHODS:The Helsinki ICH Study, a single-center observational registry of consecutive ICH patients, was used to study the associations between premorbid statin use, ba...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.001829
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Previous studies reported that Tat-NR2B9c, a peptide disrupting the N-methyl-d-aspartate receptor-postsynaptic density protein-95 interaction, reduced ischemic damage in the acute phase after stroke. However, its effect in the subacute phase is unknown. The aim of this study is to determine wheth...
journal_title:Stroke
pub_type: 杂志文章,收录出版
doi:10.1161/STROKEAHA.115.008886
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:In animal models of cerebral ischemia, matrix metalloproteinase (MMP) expression was significantly increased and related to blood-brain barrier disruption, edema formation, and hemorrhagic transformation (HT). MMP inhibitors reduce HT after embolic ischemia in tissue-type plasminogen activator-tr...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/hs1201.99512
更新日期:2001-12-01 00:00:00
abstract::Naloxone has been reported to have potential benefit in the treatment of stroke. We evaluated the effect of naloxone in a double-blind trial conducted with 15 stroke patients whose deficits ranged from 8 to 60 hours in duration. All but one patient sustained a cerebral infarction. Neurologic function was assessed befo...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.str.15.4.627
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The efficacy of neuroprotective approaches in stroke may be influenced by existing comorbidities. Here, we compared the effects of normobaric hyperoxia (NBO) in normotensive versus hypertensive rats subjected to transient focal cerebral ischemia. METHODS:Male Sprague-Dawley and spontaneously hyp...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.118.020626
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Loss of movement coordination is the main postacute symptom after cerebellar infarction. Although the course of motor recovery has been described previously, detailed kinematic descriptions of acute stage ataxia are rare and no attempt has been made to link improvements in motor function to measu...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.110.583641
更新日期:2010-10-01 00:00:00
abstract::Background and Purpose- Many patients with acute ischemic stroke are not eligible for thrombolysis or mechanical reperfusion therapies due to contraindications, inaccessible vascular occlusions, late presentation, or large infarct core. Sphenopalatine ganglion (SPG) stimulation to enhance collateral flow and stabilize...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.118.024582
更新日期:2019-05-23 00:00:00
abstract:BACKGROUND AND PURPOSE:Telestroke has been effective in the management of acute ischemic stroke. This study characterizes and compares stroke specialist (SS) and emergency physician (EP) perceptions of telestroke and identifies barriers preventing increased implementation. METHODS:A survey was developed and distribute...
journal_title:Stroke
pub_type: 信件
doi:10.1161/STROKEAHA.109.574137
更新日期:2010-04-01 00:00:00