Abstract:
BACKGROUND AND PURPOSE:Osteogenic protein-1 (OP1) not only possesses trophic activity on bone tissue but also influences neuronal survival and differentiation in vitro. Specific receptors for OP1 are present in brain and spinal cord and can be upregulated during cerebral contusion. OP1 is a member of the transforming growth factor-beta superfamily, several of whose members possess neuroprotective activity. In this study, the neuroprotective effect of OP1 in cerebral ischemia was evaluated in adult animals. METHODS:Adult male Sprague-Dawley rats were anesthetized with chloral hydrate. OP1 or vehicle was administered intracortically or intracerebroventricularly to the rats. Thirty minutes, 24 hours, or 72 hours after OP1 injection, the right middle cerebral artery (MCA) was ligated for 90 minutes. Twenty-four hours after reperfusion, animals were tested for motor behavior. The animals were subsequently anesthetized with urethane and perfused intracardially with saline. Brain tissue was removed, sliced, and incubated with 2% triphenyltetrazolium chloride to localize the area of infarction. RESULTS:Only animals pretreated with OP1 24 hours before MCA ligation showed a reduction in motor impairment. OP1, given 30 minutes or 72 hours before MCA ligation, did not reduce cortical infarction. In contrast, pretreatment with OP1 24 hours before MCA ligation significantly attenuated the volume of infarction in the cortex, in agreement with the behavioral findings. CONCLUSIONS:Intracerebral administration of OP1 24 hours before MCA ligation reduces ischemia-induced injury in the cerebral cortex.
journal_name
Strokejournal_title
Strokeauthors
Lin SZ,Hoffer BJ,Kaplan P,Wang Ydoi
10.1161/01.str.30.1.126subject
Has Abstractpub_date
1999-01-01 00:00:00pages
126-33issue
1eissn
0039-2499issn
1524-4628journal_volume
30pub_type
杂志文章相关文献
STROKE文献大全abstract:BACKGROUND AND PURPOSE:Little is known about the clinical outcomes associated with posthemorrhage anticoagulation resumption for atrial fibrillation. This study had 2 objectives: first, to evaluate anticoagulation use after a first major bleed on warfarin or dabigatran and, second, to compare effectiveness and safety o...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.116.015150
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The etiology of subarachnoid hemorrhage (SAH) is poorly understood. Reduced lung function, expressed as low forced expiratory volume in 1 second (FEV(1)) and low forced vital capacity (FVC), is a predictor of cardiovascular disease, but whether reduced lung function is a risk factor for SAH is no...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.112.658427
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The presence of known restriction fragment length polymorphisms in the apoprotein A-I-C-III gene cluster, which encodes their respective apoproteins, was investigated using the restriction enzymes Sac I and Pst I to determine the potential role of genetic variations for stroke risk in an American...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.23.9.1257
更新日期:1992-09-01 00:00:00
abstract:BACKGROUND AND PURPOSE:We sought to determine the recovery of cortical auditory discrimination in aphasic, left-hemisphere-stroke patients by using an electrophysiological response called mismatch negativity (MMN) and speech-comprehension tests. METHODS:MMN in 8 left-hemisphere stroke patients was recorded in response...
journal_title:Stroke
pub_type: 临床试验,杂志文章
doi:10.1161/01.STR.0000078836.26328.3B
更新日期:2003-07-01 00:00:00
abstract::Endovascular acute ischemic stroke therapy is now proven by randomized controlled trials to produce large, clinically meaningful benefits. In response, stroke systems of care must change to increase timely and equitable access to this therapy. In this review, we provide a North American perspective on implications for...
journal_title:Stroke
pub_type: 杂志文章,评审
doi:10.1161/STROKEAHA.115.008385
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:"Incidental" MRI white matter (WM) lesions, comprising periventricular lesions (PVLs) and deep subcortical lesions (DSCLs), are common in the aging brain. Direct evidence of ischemia associated with incidental WM lesions (WMLs) has been lacking, and their pathogenesis is unresolved. METHODS:A po...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000221308.94473.14
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:To verify the hemorheological effects of isovolemic hemodilution on hemodynamics and cerebral perfusion of normal humans, we tested the efficacy of isovolemic hemodilution in systemic hemodynamics and cerebral bood flow augmentation and its influences in vascular reserve. METHODS:Isovolemic hemo...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.27.3.441
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Outcome after acute stroke is determined to a large extent by poststroke complications. Nutritional status and metabolic balance may substantially contribute to outcome after stroke. Key mechanisms of stroke pathophysiology can induce systemic catabolic imbalance with impaired metabolic efficienc...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.619163
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Different distributions of cerebral microbleeds (CMBs) are associated with distinct pathological mechanisms. Lobar CMBs are thought to be related to cerebral amyloid angiopathy, whereas deep or infratentorial CMBs are related to hypertensive vasculopathy. The present study aimed to evaluate the e...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.116.014166
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Transcatheter closure of patent foramen ovale (PFO) has been reported to improve migraine in patients with cerebrovascular disorders in noncontrolled studies. The aim of the study was to compare the course of migraine assessed prospectively over a 12-month period in symptomatic (for cerebrovascul...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000199082.07317.43
更新日期:2006-02-01 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::Sixteen acceptably randomized studies of anticoagulant therapy after cerebral or retinal ischemia or infarction are reviewed and the results among 1,046 anticoagulated patients and 1,071 controls are analyzed. The following conclusions are derived. 1) Anticoagulant therapy has not been shown to be better than control ...
journal_title:Stroke
pub_type: 临床试验,杂志文章,评审
doi:10.1161/01.str.19.8.1043
更新日期:1988-08-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Visit-to-visit and day-to-day variability in systolic blood pressure (SBP) are associated with an increased risk of stroke, more strongly than variability on 24-hour ambulatory BP monitoring, but underlying physiological mechanisms are unclear. We related potentially relevant physiological charac...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.113.003321
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Several hundred small RNAs called microRNAs (miRNAs) have been identified and characterized from various organisms, including humans. In humans, some of these miRNAs have been found to regulate (patho)physiologic conditions such as tumor progression/regression, cholesterol and glucose homeostasis...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.107.500736
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Intake of fruits and vegetables has been related to lower risk of ischemic stroke, but nutrients responsible for this apparent benefit remain ill-defined. Tocopherols (vitamin E) have also been proposed to be protective. METHODS:We conducted a prospective, nested case-control analysis among male...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000132197.67350.bd
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Availability of neurointerventional procedures is recommended as a necessary component of a comprehensive stroke center by various regulatory guidelines that also emphasize adequate procedural volumes. We studied the volumes of neurointerventional procedures performed in various hospitals across ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.111.636076
更新日期:2012-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Stroke produces diaschisis in adjacent and connected regions. The sequential changes in diaschisis over time and the relationship of regions of diaschisis to functional cortical areas and regions of poststroke neuroplasticity have not been determined. METHODS:Small cortical strokes were produced...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000117235.11156.55
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The lipophilic calcium channel antagonist flunarizine has been demonstrated to be neuroprotective in several models of cerebral ischemia. Ischemic spinal cord injury may have a similar pathophysiology and hence may respond in a similar fashion. This study was designed to investigate the effects o...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.24.10.1547
更新日期:1993-10-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The best management of patients with unruptured brain arteriovenous malformations (BAVM) is controversial. In this study, we analyzed the stroke rate and functional outcomes of patients having stereotactic radiosurgery (SRS) for unruptured BAVM using the same eligibility criteria and primary end ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.112.670232
更新日期:2013-02-01 00:00:00
abstract::Background and Purpose- Stroke and Alzheimer disease are 2 major causes of neurological disability in aged people and shared overlapping predictors. In recent prospective studies, high Lp(a) [lipoprotein(a)] level is associated with high risk of stroke but low risk of Alzheimer disease. Whether this reflects a causal ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.119.026872
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Postischemic cerebral inflammation may contribute to ischemic cell damage. Intercellular adhesion molecule-1 (ICAM-1) is a glycoprotein expressed on endothelial cells that facilitates leukocyte adhesion. We investigated the effect of administration of an anti-ICAM-1 antibody (1A29) on ischemic ce...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.26.8.1438
更新日期:1995-08-01 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::We tested the reproducibility of consecutive measurements of regional cerebral blood flow (rCBF) made in 13 areas of each hemisphere in patients with cerebrovascular diseases by the atraumatic 133Xe intravenous injection method. The data were analysed by a two-compartment model similar to that used in the Obrist inhal...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.str.14.1.82
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The American Heart Association/American Stroke Association and Department of Health Stroke Coverdell Program convened a stakeholder meeting in upstate NY to develop recommendations to enhance stroke systems for acute large vessel occlusion. METHODS:Prehospital, hospital, and Department of Health...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.117.017412
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Higher proportions of hemorrhagic stroke and lacunar infarction were reported in rural Japan compared with those in Western countries. We examined the relative proportions of stroke subtypes in an urban Japanese city where westernized lifestyles are more common than in rural areas. METHODS:Strok...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000221714.96986.5f
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Inflammation is thought to be a major contributor to carotid artery disease. Lipopolysaccharide (LPS) activates inflammatory mechanisms thought to contribute to endothelial dysfunction by mechanisms that are not well defined. The goal of this study was to determine whether overexpression of CuZn-...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/01.STR.0000132764.06878.c5
更新日期:2004-08-01 00:00:00
abstract::An overview of the possible factors that might contribute to the development of cerebral vasospasm is presented, with particular emphasis on the possibility that spasm arises from a malfunction of the regulatory or contractile processes in smooth muscle cells. This possibility is emphasized because the evidence for ce...
journal_title:Stroke
pub_type: 杂志文章,评审
doi:10.1161/01.str.16.4.573
更新日期:1985-07-01 00:00:00
abstract:BACKGROUND AND PURPOSE:NINDS (National Institute of Neurological Disorders and Stroke)-SiGN (Stroke Genetics Network) is an international consortium of ischemic stroke studies that aims to generate high-quality phenotype data to identify the genetic basis of pathogenic stroke subtypes. This analysis characterizes the e...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.114.007362
更新日期:2014-12-01 00:00:00
abstract::Background and Purpose- The importance of weight change for the risk of stroke is not well known. We examined the associations between early- and mid-life weight change and risks of stroke and death during long-term follow-up of healthy men. Methods- We recruited healthy men aged between 40 and 59 years and performed ...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.119.027233
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The pivotal National Institute of Neurological Disorders and Stroke recombinant tissue plasminogen activator trials excluded patients with ischemic stroke with specific minor presentations or rapidly improving symptoms. The recombinant tissue plasminogen activator product label notes that its use...
journal_title:Stroke
pub_type: 杂志文章
doi:10.1161/STROKEAHA.110.593632
更新日期:2010-11-01 00:00:00