Abstract:
BACKGROUND AND PURPOSE:The use of lithium as a neuroprotective agent has been demonstrated using various models in which improvements in infarct size, DNA damage, and neurological function were reported. We further investigated neurohemodynamic aspects of the treatment-associated recovery by assessing the therapeutic efficacy of delayed chronic lithium treatment using functional MRI. METHODS:Ipsilesional functional MRI activations in the somatosensory cortex, acquired 2 weeks after the 90-minute transient middle cerebral artery occlusion, were compared between lithium- and saline-treated rats. Specifically, MRI signal changes based on blood oxygenation level dependence and functional cerebral blood volume responses were examined using electrical stimulation of forelimbs. Additional immunohistochemical assays were performed. RESULTS:The ratio of ipsilesional to contralesional blood oxygenation level dependence response magnitudes significantly improved with lithium treatments. In contrast, the increase of the functional cerebral blood volume response magnitude ratio was not statistically significant. Nonetheless, the lithium treatment induced significant enhancements of total functional MRI activation (defined as a product of activation volume and response magnitude) for both blood oxygenation level dependence and functional cerebral blood volume methods. Increased cerebral blood volume in periinfarct tissues suggests a possible stroke-induced vascular transformation in both saline- and lithium-treated rats; however, other MRI-derived vascular parameters (vascular size index and microvascular volume) and immunohistochemical staining (CD31, glia fibrillary-associated protein, and matrix metalloproteinase-9) may imply that the neoformation of vasculature was differently affected by the lithium treatment. CONCLUSIONS:The delayed chronic lithium treatment enhanced the blood oxygenation level dependence functional MRI response magnitude in the absence of neurological improvement and influenced vascular formation in poststroke animal models.
journal_name
Strokejournal_title
Strokeauthors
Kim YR,van Meer MP,Tejima E,Murata Y,Mandeville JB,Dai G,Chuang DM,Rosen BR,Lo EHdoi
10.1161/STROKEAHA.107.492215subject
Has Abstractpub_date
2008-02-01 00:00:00pages
439-47issue
2eissn
0039-2499issn
1524-4628pii
STROKEAHA.107.492215journal_volume
39pub_type
杂志文章相关文献
STROKE文献大全abstract:BACKGROUND AND PURPOSE:In Rivaroxaban Once Daily Oral Direct Factor Xa Inhibitor Compared With Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF) trial, rivaroxaban was noninferior to dose-adjusted warfarin in preventing stroke or systemic embolism among patients with no...
journal_title:Stroke
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1161/STROKEAHA.113.002968
更新日期:2014-06-01 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::Blood proteins could play a critical role in the pathogenesis of cerebral vasospasm in subarachnoid hemorrhage (SAH) as agonists and as antagonists of vasoconstriction. The present study was designed primarily to quantify the inhibition produced by antithrombin III of the phasic responses elicited by cumulative doses ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.17.2.207
更新日期:1986-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Transcranial direct current stimulation is emerging as a promising tool for the treatment of several neurological conditions, including cerebral ischemia. The therapeutic role of this noninvasive treatment is, however, limited to chronic phases of stroke. We thus ought to investigate whether diff...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.001687
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Noninvasive studies are used with increasing frequency to assess the carotid bifurcation before endarterectomy. Therefore, assessment of their diagnostic accuracies is essential for appropriate patient management. We prospectively evaluate two noninvasive tests, magnetic resonance angiography (MR...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.str.26.10.1753
更新日期:1995-10-01 00:00:00
abstract::The European Stroke Organisation held its first European Stroke Science Workshop in Garmisch-Partenkirchen, Germany (December 15-17, 2011). Stroke experts based in Europe were invited to present and discuss their current research. The scope of the workshop was to review the most recent findings of selected topics in s...
journal_title:Stroke
pub_type:
doi:10.1161/STROKEAHA.112.655373
更新日期:2012-09-01 00:00:00
abstract::Background and Purpose- We aimed to compare outcomes of ischemic stroke patients with nonvalvular atrial fibrillation between earlier and later initiation of direct oral anticoagulants (DOACs) after stroke onset. Methods- From data for 1192 nonvalvular atrial fibrillation patients with acute ischemic stroke or transie...
journal_title:Stroke
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1161/STROKEAHA.119.028118
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Fruits and vegetables are known for their beneficial effects on chronic diseases. The purpose of the present study was to investigate the protective effect of a diet rich in fruits and vegetables on total stroke mortality and its 2 main subtypes in men and women separately. METHODS:A prospective...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000089293.29739.97
更新日期:2003-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Perihematomal edema formation and consequent cell death contribute to the delayed brain injury evoked by intracerebral hemorrhage (ICH). We aimed to evaluate the effect of α7 nicotinic acetylcholine receptor (α7nAChR) stimulation on behavior, brain edema, and neuronal apoptosis. Furthermore, we a...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.639989
更新日期:2012-03-01 00:00:00
abstract::Background and Purpose- Stroke is the most frequent severe clinical event in patients with Fabry disease. We aimed to evaluate the cerebral magnetic resonance imaging findings of patients with Fabry disease and assess their association with future stroke risk after enzyme replacement therapy (ERT) induction. Methods- ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.119.025528
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:While it has been widely reported that the vasospasm following subarachnoid hemorrhage (SAH) is prevented/reversed by endothelin (ET) receptor antagonists selective for the ET(A) receptor and by nonselective ET receptor antagonists, ie, antagonists of both the ET(A) and ET(B) receptors, there are...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.29.9.1924
更新日期:1998-09-01 00:00:00
abstract::Utah mortality rates for cerebrovascular disease (ICD numbers 430--438) are 13% below U.S. rates. About 70% of Utahns are members of the Church of Jesus Christ of Latter-day Saints, commonly called Mormons of LDS, which proscribes use of tobacco and alcohol. Other studies on this group have found significantly lower o...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.12.5.564
更新日期:1981-09-01 00:00:00
abstract::The protective properties of PY 108-068 against ischemic disturbances in the brain were investigated in vitro and in vivo. The calcium antagonistic effects were demonstrated on isolated, calcium-loaded arterial rings of feline cerebral arteries. Determination of brain tissue oxygenation with pO2 microelectrodes showed...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.15.4.679
更新日期:1984-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The current report details our initial periprocedural experience with Wingspan (Boston Scientific/Target), the first self-expanding stent system designed for the treatment of intracranial atheromatous disease. METHODS:All patients undergoing angioplasty and stenting with the Gateway balloon-Wing...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/01.STR.0000257963.65728.e8
更新日期:2007-03-01 00:00:00
abstract::To compare the diagnostic yields of transesophageal and transthoracic echocardiography in the detection of potential cardiac sources of embolism, 63 patients (mean +/- SD age 63 +/- 15 [range 18-87] years) with transient ischemic attacks or stroke underwent both procedures. Transthoracic echocardiography revealed a po...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.22.6.727
更新日期:1991-06-01 00:00:00
abstract::Background and Purpose- High-resolution vessel wall magnetic resonance imaging is a promising technique for assessing wall structures of unruptured intracranial aneurysms (UIAs). However, the relationship between aneurysmal high-resolution vessel wall magnetic resonance imaging features and their histopathologic mecha...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.118.024195
更新日期:2019-06-01 00:00:00
abstract::To elucidate the role of the internal elastic lamina in the development of cerebral aneurysm, the bifurcation of the anterior cerebral artery and olfactory artery was histologically studied in control and experimental rats treated with unilateral carotid ligation and renal hypertension. Various stages of aneurysm form...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.19.4.507
更新日期:1988-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:This study aimed to identify aspects of the caregiving situation contributing to family caregivers' psychological well-being. METHODS:Longitudinal cohort study with structured quantitative interviews 1, 3, 6, and 12 months post stroke. A subset of participants also completed surveys 18 and 24 mo...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.004309
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cannabidiol has been reported to be a neuroprotectant, but the neuroprotective mechanism of cannabidiol remains unclear. We studied the neuroprotective mechanism of cannabidiol in 4-hour middle cerebral artery (MCA) occlusion mice. METHODS:Male MCA occluded mice were treated with cannabidiol, ab...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000163083.59201.34
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Several studies have found a morning peak in onset of stroke. A similar peak has been suggested for subarachnoid hemorrhage (SAH), which seems in contradiction with the physical activities associated with aneurysmal rupture. Most studies included only a few patients with SAH. We analyzed time of ...
journal_title:Stroke
pub_type: 杂志文章,评审
doi:10.1161/01.str.28.4.805
更新日期:1997-04-01 00:00:00
abstract::Background and Purpose- Perihemorrhagic edema (PHE) is associated with poor outcome after intracerebral hemorrhage (ICH). Infiltration of immune cells is considered a major contributor of PHE. Recent studies suggest that immunomodulation via S1PR (sphingosine-1-phosphate receptor) modulators improve outcome in ICH. Si...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.119.027134
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Intravenous thrombolysis (IVT) within 4.5 hours from symptom onset improves functional outcome in patients with acute ischemic stroke. Its use in patients with previous stroke within the preceding 3 months is contraindicated because of the assumed higher risk of intracranial hemorrhage. In additi...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.116.013599
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We aimed to determine the effect of intracisternal administration of an endothelin-A receptor antagonist (BQ-123) against vasospasm in a monkey model and to determine whether this drug would have adverse interactions with intracisternal tissue plasminogen activator (TPA). METHODS:Thirty-three mo...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.9.1629
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Accumulating evidence indicates that inflammatory responses cause secondary injury after intracerebral hemorrhage (ICH). We recently demonstrated the involvement of toll-like receptor 4 (TLR4) signaling in these processes. The purpose of the current study was to investigate the protective effect ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.001038
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Policy makers require evidence on the costs and outcomes of different ways of organizing stroke care. This study compared the costs and survival of different ways of providing stroke care. METHODS:Hospitalized stroke patients from 13 European centers were included, with demographic, case-mix, an...
journal_title:Stroke
pub_type: 杂志文章,多中心研究
doi:10.1161/01.str.32.7.1684
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:A transient ischemic attack (TIA) in the brain is classically considered a syndrome lasting <24 hours. Having previously shown that an experimental challenge with the GABAA agonist midazolam in recovered stroke patients can reinduce the acute clinical state, we determined whether TIA patients wou...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.STR.0000056540.04159.F3
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The goal of this study was to determine whether release of endothelium-derived relaxing factor (EDRF) from carotid artery in response to acetylcholine is altered by aging. METHODS:Responses were examined in arteries from Wistar rats 6 to 8 months old (young rats), 24 to 26 months old (old rats),...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.25.12.2457
更新日期:1994-12-01 00:00:00
abstract::Radiolabelled misonidazole, a radiosensitizing drug that binds to viable hypoxic tumor cells, may be useful in identifying hypoxic cells in cerebrovascular disease. Its potential was investigated in the gerbil stroke model. Biodistribution of [3H]misonidazole was measured in normal gerbils and animals that had been su...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.18.1.168
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The spontaneously hypertensive stroke-prone rat (SHRSP) is an animal model for a complex form of cerebrovascular pathology. MRI provides an efficient and noninvasive tool for studying the time course of brain damage. The aim of this study was to gain new insights into the pathological phenomena r...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/hs0302.104111
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The present study was performed to determine the relation between distribution of atherosclerosis and risk factors in Japanese patients with atherothrombotic occlusion. METHODS:We studied 154 patients with atherothrombotic occlusion of the extracranial internal carotid artery (n = 75, ICA group)...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.24.2.206
更新日期:1993-02-01 00:00:00