Calcium antagonist PY 108-068: demonstration of its efficacy in various types of experimental brain ischemia.

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 that PY 108-068 improved oxygen supply in the cortex of cats subjected to epicerebral arterial occlusion. In a model of cerebral vasospasm induced by autologous blood superfusion, PY 108-068 reversed the spastic state of cortical microvessels. In a chronic stroke model (microsphere embolization in rats) PY 108-068 led to a significant reduction in mortality and in the severity of neurological symptoms, whereby the peroral efficacy of the drug could be demonstrated. The efficacy of PY 108-068 in a variety of ischemic insults makes this drug a promising aid in the treatment of cerebrovascular accidents.

journal_name

Stroke

journal_title

Stroke

authors

Wiernsperger N,Gygax P,Hofmann A

doi

10.1161/01.str.15.4.679

subject

Has Abstract

pub_date

1984-07-01 00:00:00

pages

679-85

issue

4

eissn

0039-2499

issn

1524-4628

journal_volume

15

pub_type

杂志文章

相关文献

STROKE文献大全
  • Analysis of reproducibility and sensitivity of atraumatic measurements of regional cerebral blood flow in cerebrovascular diseases.

    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

    authors: Meric P,Luft A,Seylaz J,Mamo H

    更新日期:1983-01-01 00:00:00

  • Reduction of diffusion-weighted MRI lesion volume after early moderate hypothermia in ischemic stroke.

    abstract:BACKGROUND:Large areas of restricted diffusion in the middle cerebral artery (MCA) territory are highly predictive of severe and potentially space-occupying MCA stroke. A reduction of diffusion-weighted MRI (DWI) lesions occurs in 20% to 40% of acute stroke patients with early reperfusion. METHODS:We report of a patie...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.0000166057.96174.88

    authors: Berger C,Schramm P,Schwab S

    更新日期:2005-06-01 00:00:00

  • Pediatric Stroke Belt: geographic variation in stroke mortality in US children.

    abstract:BACKGROUND AND PURPOSE:Numerous studies have demonstrated higher stroke mortality rates in adults residing in the Southeastern United States (the "Stroke Belt"). If the Stroke Belt is solely caused by regional differences in atherosclerotic stroke risk factors, it should not apply to children. METHODS:For the years 19...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.STR.0000130514.21773.95

    authors: Fullerton HJ,Elkins JS,Johnston SC

    更新日期:2004-07-01 00:00:00

  • Delayed cerebral ischemia following arteriography.

    abstract::Cerebral ischemic events associated with arteriography are usually attributed to catheter-induced emboli. We present three patients with cerebral ischemia occurring 6 to 48 hours post-arteriography. We suspected that alternate pathogenic mechanisms were in effect. To evaluate the possibility that sustained platelet ac...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.16.3.431

    authors: Fisher M,Sandler R,Weiner JM

    更新日期:1985-05-01 00:00:00

  • Emergency Department Door-to-Puncture Time Since 2014.

    abstract::Background and Purpose- The impact of a mobile stroke unit (MSU) on access to intraarterial thrombectomy (IAT) is a prespecified BEST-MSU substudy (Benefits of Stroke Treatment Delivered Using a Mobile Stroke Unit Compared to Standard Management by Emergency Medical Services). On the MSU, IAT decision-making steps, su...

    journal_title:Stroke

    pub_type: 杂志文章,多中心研究

    doi:10.1161/STROKEAHA.119.025106

    authors: Czap AL,Grotta JC,Parker SA,Yamal JM,Bowry R,Sheth SA,Rajan SS,Hwang H,Singh N,Bratina P,Bryndziar T,Alexandrov AV,Alexandrov AW,Dusenbury W,Swatzell V,Jones W,Ackerson K,Schimpf B,Wright P,Jagolino-Cole AL

    更新日期:2019-07-01 00:00:00

  • Lack of impact of paramedic training and use of the cincinnati prehospital stroke scale on stroke patient identification and on-scene time.

    abstract:BACKGROUND AND PURPOSE:The Cincinnati Prehospital Stroke Scale (CPSS) is recommended for emergency medical services use in identifying patients with stroke. Data evaluating its performance in the field are limited. We assessed the impact of training and use of the CPSS on the accuracy of paramedics' stroke patient iden...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.108.531285

    authors: Frendl DM,Strauss DG,Underhill BK,Goldstein LB

    更新日期:2009-03-01 00:00:00

  • Trial of secondary prevention with atenolol after transient ischemic attack or nondisabling ischemic stroke. The Dutch TIA Trial Study Group.

    abstract:BACKGROUND AND PURPOSE:beta-Blockers prevent vascular events in patients after myocardial infarction and lower blood pressure, the main risk factor for stroke. Hence, we assessed the effects of atenolol on the occurrence of death from vascular causes, stroke, or myocardial infarction and on blood pressure in patients a...

    journal_title:Stroke

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.str.24.4.543

    authors:

    更新日期:1993-04-01 00:00:00

  • Anatomical and technical factors associated with stroke or death during carotid angioplasty and stenting: results from the endarterectomy versus angioplasty in patients with symptomatic severe carotid stenosis (EVA-3S) trial and systematic review.

    abstract:BACKGROUND AND PURPOSE:The purposes of this study were to assess the relationships between anatomic and technical factors and the 30-day risk of stroke or death after carotid angioplasty and stenting in the Endarterectomy versus Stenting in Patients with Symptomatic Severe Carotid Stenosis (EVA-3S) trial and to perform...

    journal_title:Stroke

    pub_type: 杂志文章,多中心研究,随机对照试验,评审

    doi:10.1161/STROKEAHA.110.588772

    authors: Naggara O,Touzé E,Beyssen B,Trinquart L,Chatellier G,Meder JF,Mas JL,EVA-3S Investigators.

    更新日期:2011-02-01 00:00:00

  • IMPS (intact months of patient survival): an analysis of the results of carotid endarterectomy.

    abstract::The literature on carotid surgery for lesions appropriate to prior episodes of ischemia has been reviewed. Only one randomized study and six non-controlled reports give useful data (this despite more than thirty years of surgical activity in this field). When analyzed by the IMPS (intact months of patient survival) cr...

    journal_title:Stroke

    pub_type: 临床试验,杂志文章

    doi:10.1161/01.str.17.6.1329

    authors: Jonas S

    更新日期:1986-11-01 00:00:00

  • Increasing stroke incidence in Sweden between 1989 and 2000 among persons aged 30 to 65 years: evidence from the Swedish Hospital Discharge Register.

    abstract:BACKGROUND AND PURPOSE:Stroke mortality is decreasing in Sweden, as is the case in other Western European countries. However, both decreases and increases have been reported in Sweden for persons younger than age 65 years. The aim of this study was to compare the incidence of stroke in Sweden between the periods 1989 a...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.STR.0000125866.78674.96

    authors: Medin J,Nordlund A,Ekberg K,Swedish Hospital Discharge Register.

    更新日期:2004-05-01 00:00:00

  • Overlap of diseases underlying ischemic stroke: the ASCOD phenotyping.

    abstract:BACKGROUND AND PURPOSE:ASCOD phenotyping (A, atherosclerosis; S, small vessel disease; C, cardiac pathology; O, other causes; and D, dissection) assigns a degree of likelihood to every potential cause (1 for potentially causal, 2 for causality is uncertain, 3 for unlikely causal but disease is present, 0 for absence of...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.113.001363

    authors: Sirimarco G,Lavallée PC,Labreuche J,Meseguer E,Cabrejo L,Guidoux C,Klein IF,Olivot JM,Abboud H,Adraï V,Kusmierek J,Ratani S,Touboul PJ,Mazighi M,Steg PG,Amarenco P

    更新日期:2013-09-01 00:00:00

  • Characterization of fluoromisonidazole binding in stroke.

    abstract:BACKGROUND AND PURPOSE:[18F]fluoromisonidazole (FMISO) positron emission tomography has been used to image hypoxia early after human stroke. To further study the role of hypoxia in stroke and the binding characteristics of FMISO, we aimed to develop [3H]FMISO autoradiography in an animal stroke model. We hypothesized t...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.STR.0000226908.93295.9d

    authors: Spratt NJ,Ackerman U,Tochon-Danguy HJ,Donnan GA,Howells DW

    更新日期:2006-07-01 00:00:00

  • Neurovascular compression at the ventrolateral medulla in autosomal dominant hypertension and brachydactyly.

    abstract:BACKGROUND AND PURPOSE:Autosomal dominant hypertension with brachydactyly features severe hypertension that causes stroke usually before the age of 50 years. We recently characterized the hypertension as featuring normal renin, aldosterone, and catecholamine responses and mapped the gene responsible to chromosome 12p. ...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.28.9.1749

    authors: Naraghi R,Schuster H,Toka HR,Bähring S,Toka O,Oztekin O,Bilginturan N,Knoblauch H,Wienker TF,Busjahn A,Haller H,Fahlbusch R,Luft FC

    更新日期:1997-09-01 00:00:00

  • Plaque distribution of stenotic middle cerebral artery and its clinical relevance.

    abstract:BACKGROUND AND PURPOSE:Microanatomy studies reveal that most penetrating branches of middle cerebral artery (MCA) arise from the dorsal-superior surface of the trunk. Using high-resolution MRI, we sought to explore the plaque distribution of MCA atherosclerosis and its clinical relevance in relation to the orifices of ...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.111.618132

    authors: Xu WH,Li ML,Gao S,Ni J,Zhou LX,Yao M,Peng B,Feng F,Jin ZY,Cui LY

    更新日期:2011-10-01 00:00:00

  • Reduction of tissue plasminogen activator-induced matrix metalloproteinase-9 by simvastatin in astrocytes.

    abstract:BACKGROUND AND PURPOSE:Hemorrhagic conversion after tissue plasminogen activator (tPA) stroke therapy has been linked with elevations in matrix metalloproteinase-9 (MMP-9) at the neurovascular interface. Here, we test the idea that statins may directly ameliorate tPA-induced MMP-9 dysregulation. METHODS:Recombinant hu...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.STR.0000226923.48905.39

    authors: Wang S,Lee SR,Guo SZ,Kim WJ,Montaner J,Wang X,Lo EH

    更新日期:2006-07-01 00:00:00

  • The California, ABCD, and unified ABCD2 risk scores and the presence of acute ischemic lesions on diffusion-weighted imaging in TIA patients.

    abstract:BACKGROUND AND PURPOSE:Some clinical models, like California ABCD and unified ABCD2 scores, are now available to predict the early risk of stroke after a TIA. Despite the transitivity of symptoms, DWI identified an area of acute brain ischemia in almost half of patients. It would be interesting to know how the presence...

    journal_title:Stroke

    pub_type: 信件

    doi:10.1161/STROKEAHA.108.537969

    authors: Purroy F,Begué R,Quílez A,Piñol-Ripoll G,Sanahuja J,Brieva L,Setó E,Gil MI

    更新日期:2009-06-01 00:00:00

  • Lack of effect of pravastatin on cerebral blood flow or parenchymal volume loss in elderly at risk for vascular disease.

    abstract:BACKGROUND AND PURPOSE:Ageing is associated with a decline in cerebral blood flow. Animal studies have shown that cholesterol-lowering therapy with statins might preserve cerebral blood flow (CBF). We examined the effect of 40 mg pravastatin on the decline in CBF and brain volume in a subset of elderly subjects partici...

    journal_title:Stroke

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1161/01.STR.0000173162.88600.29

    authors: ten Dam VH,Box FM,de Craen AJ,van den Heuvel DM,Bollen EL,Murray HM,van Buchem MA,Westendorp RG,Blauw GJ,PROSPER Study Group.

    更新日期:2005-08-01 00:00:00

  • Cerebral mast cells mediate blood-brain barrier disruption in acute experimental ischemic stroke through perivascular gelatinase activation.

    abstract:BACKGROUND AND PURPOSE:Perivascularly positioned cerebral mast cells (MC) have been shown to participate in acute blood-brain barrier disruption and expansive brain edema following experimental transient cerebral ischemia. However, the underlying molecular mechanisms remain unknown. Because proteolytic gelatinase enzym...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.111.632224

    authors: Mattila OS,Strbian D,Saksi J,Pikkarainen TO,Rantanen V,Tatlisumak T,Lindsberg PJ

    更新日期:2011-12-01 00:00:00

  • Medial medullary infarction from fibrocartilaginous embolism to the anterior spinal artery.

    abstract::A previously healthy young woman presented with sudden onset of quadriplegia, anesthesia below the C3 dermatome, respiratory paralysis, vertical nystagmus, ocular bobbing and cortical blindness. After partial resolution of the latter deficits, she remained quadriplegic, with a C3 level of anesthesia, and in respirator...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.14.3.413

    authors: Kase CS,Varakis JN,Stafford JR,Mohr JP

    更新日期:1983-05-01 00:00:00

  • Changes of neural activity correlate with the severity of cortical ischemia in patients with unilateral major cerebral artery occlusion.

    abstract:BACKGROUND AND PURPOSE:In major cerebral arterial steno-occlusive diseases, there can be remarkably decreased hemodynamic reserve without marked neurological impairments. In such settings, it is not known whether the neural activity is well maintained or disturbed according to the severity of cerebral ischemia. The pre...

    journal_title:Stroke

    pub_type: 临床试验,杂志文章

    doi:10.1161/hs0102.101816

    authors: Bundo M,Inao S,Nakamura A,Kato T,Ito K,Tadokoro M,Kabeya R,Sugimoto T,Kajita Y,Yoshida J

    更新日期:2002-01-01 00:00:00

  • Stroke risk and antithrombotic strategies in atrial fibrillation.

    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

    authors: Medi C,Hankey GJ,Freedman SB

    更新日期:2010-11-01 00:00:00

  • Endovascular Thrombectomy for Acute Ischemic Strokes: Current US Access Paradigms and Optimization Methodology.

    abstract::Background and Purpose- Timely access to endovascular thrombectomy (EVT) centers is vital for best acute ischemic stroke outcomes. Methods- US stroke-treating centers were mapped utilizing geo-mapping and stratified into non-EVT or EVT if they reported ≥1 acute ischemic stroke thrombectomy code in 2017 to Center for M...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.120.028850

    authors: Sarraj A,Savitz S,Pujara D,Kamal H,Carroll K,Shaker F,Reddy S,Parsha K,Fournier LE,Jones EM,Sharrief A,Martin-Schild S,Grotta J

    更新日期:2020-04-01 00:00:00

  • Retinal microvascular signs may provide clues to the underlying vasculopathy in patients with deep intracerebral hemorrhage.

    abstract:BACKGROUND AND PURPOSE:Deep intracerebral hemorrhage (ICH) and lacunar infarcts are the result of small vessel disease, whereas nonlacunar infarcts are often caused by large artery atherosclerosis or cardiac embolism. We hypothesized that patients with deep ICH and lacunar infarcts have similar retinal microvascular si...

    journal_title:Stroke

    pub_type: 杂志文章,多中心研究

    doi:10.1161/STROKEAHA.109.569764

    authors: Baker ML,Hand PJ,Liew G,Wong TY,Rochtchina E,Mitchell P,Lindley RI,Hankey GJ,Wang JJ,Multi-Centre Retinal Stroke Study Group.

    更新日期:2010-04-01 00:00:00

  • Patient selection for carotid endarterectomy: how far is risk modeling applicable to the individual?

    abstract:BACKGROUND AND PURPOSE:Risk-factor modeling has been proposed to identify patients with carotid stenosis who will most benefit from surgery. Validation by independent institutions performing carotid endarterectomy is necessary to determine the applicability of such models to the individual patient. METHODS:A series of...

    journal_title:Stroke

    pub_type: 临床试验,杂志文章

    doi:10.1161/01.str.0000051729.79990.fb

    authors: Barth A,Bassetti C

    更新日期:2003-02-01 00:00:00

  • Detection of hyperacute primary intraparenchymal hemorrhage by magnetic resonance imaging.

    abstract:BACKGROUND:MRI has become increasingly used in the acute setting to manage patients with stroke. There has been concern that MRI may not be sensitive in the detection of acute intracranial hemorrhage. We assessed whether strongly susceptibility-weighted MRI would be sensitive to intraparenchymal hemorrhage in the first...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.27.12.2321

    authors: Patel MR,Edelman RR,Warach S

    更新日期:1996-12-01 00:00:00

  • The importance of size: successful recanalization by intravenous thrombolysis in acute anterior stroke depends on thrombus length.

    abstract:BACKGROUND AND PURPOSE:We hypothesize that in acute middle cerebral artery stroke, thrombus lengths measured in thin-slice nonenhanced CT images define a limit beyond which systemic thrombolysis will fail to recanalize occluded arteries. METHODS:In 138 patients who presented with acute middle cerebral artery stroke an...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.110.609693

    authors: Riedel CH,Zimmermann P,Jensen-Kondering U,Stingele R,Deuschl G,Jansen O

    更新日期:2011-06-01 00:00:00

  • Homocyst(e)ine and risk of cerebral infarction in a biracial population : the stroke prevention in young women study.

    abstract:BACKGROUND AND PURPOSE:Genetic enzyme variation and vitamin intake are important determinants of blood homocyst(e)ine levels. The prevalence of common genetic polymorphisms influencing homocyst(e)ine levels varies by race, and vitamin intake varies by socioeconomic status. Therefore, we examined the effect of vitamin i...

    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.30.8.1554

    authors: Kittner SJ,Giles WH,Macko RF,Hebel JR,Wozniak MA,Wityk RJ,Stolley PD,Stern BJ,Sloan MA,Sherwin R,Price TR,McCarter RJ,Johnson CJ,Earley CJ,Buchholz DW,Malinow MR

    更新日期:1999-08-01 00:00:00

  • Density and shape as CT predictors of intracerebral hemorrhage growth.

    abstract:BACKGROUND AND PURPOSE:Intracerebral hemorrhage (ICH) growth predicts mortality and functional outcome. We hypothesized that irregular hematoma shape and density heterogeneity, reflecting active, multifocal bleeding or a variable bleeding time course, would predict ICH growth. METHODS:Three raters examined baseline su...

    journal_title:Stroke

    pub_type: 杂志文章,随机对照试验

    doi:10.1161/STROKEAHA.108.536888

    authors: Barras CD,Tress BM,Christensen S,MacGregor L,Collins M,Desmond PM,Skolnick BE,Mayer SA,Broderick JP,Diringer MN,Steiner T,Davis SM,Recombinant Activated Factor VII Intracerebral Hemorrhage Trial Investigators.

    更新日期:2009-04-01 00:00:00

  • Early Elevated Troponin Levels After Ischemic Stroke Suggests a Cardioembolic Source.

    abstract:BACKGROUND AND PURPOSE:Elevated cardiac troponin is a marker of cardiac disease and has been recently shown to be associated with embolic stroke risk. We hypothesize that early elevated troponin levels in the acute stroke setting are more prevalent in patients with embolic stroke subtypes (cardioembolic and embolic str...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/STROKEAHA.117.019395

    authors: Yaghi S,Chang AD,Ricci BA,Jayaraman MV,McTaggart RA,Hemendinger M,Narwal P,Dakay K,Mac Grory B,Cutting SM,Burton TM,Song C,Mehanna E,Siket M,Madsen TE,Reznik M,Merkler AE,Lerario MP,Kamel H,Elkind MSV,Furie KL

    更新日期:2018-01-01 00:00:00

  • Fluctuation of lipid peroxides and related enzyme activities at time of stroke in stroke-prone spontaneously hypertensive rats.

    abstract::The levels of lipid peroxides, determined as thiobarbituric acid reactive substances (TBARS), and the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), were examined in the blood from stroke-prone spontaneously hypertensive rats (SHRSP), with and without cerebral lesions, and normotensive W...

    journal_title:Stroke

    pub_type: 杂志文章

    doi:10.1161/01.str.10.3.323

    authors: Tomita I,Sano M,Serizawa S,Ohta K,Katou M

    更新日期:1979-05-01 00:00:00