Evidence map›Paper›PMID 21512172›Full record

ArticleStroke2011

Thrombin mutant W215A/E217A treatment improves neurological outcome and reduces cerebral infarct size in a mouse model of ischemic stroke.

Michelle A Berny-Lang, Sawan Hurst, Erik I Tucker, Leslie A Pelc, Ruikang K Wang, Patricia D Hurn, Enrico Di Cera, Owen J T McCarty, András Gruber

Open access · bronzeAbstract read
In one paragraph

Article in Stroke, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. New Directions in Infection-Associated Ischemic Stroke.Journal of clinical neurology (Seoul, Korea) · 2024
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. WEDGE: an anticoagulant thrombin mutant produced by autoactivation.Journal of thrombosis and haemostasis : JTH · 2015
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Michelle A Berny-LangDepartment of Biomedical Engineering, Oregon Health & Science University, 3303 SW Bond Ave, Portland, OR 97239, USA.
Sawan Hurst
Erik I Tucker
Leslie A Pelc
Ruikang K Wang
Patricia D Hurn
Enrico Di Cera
Owen J T McCarty
András Gruber
Saint Louis University · US

Funding

STUDIES ON THROMBIN ALLOSTERYR01HL049413 · NHLBI · WASHINGTON UNIVERSITY · PI Enrico Di Cera · 2000 to 2026
$9.6M
Characterization of Coagulation Factor-platelet Interactions: Role of FXIR01HL101972 · NHLBI · OREGON HEALTH & SCIENCE UNIVERSITY · PI Owen J McCarty · 2010 to 2026
$8.5M
Studies on the anticoagulant properties of thrombinR01HL073813 · NHLBI · WASHINGTON UNIVERSITY · PI DI CERA, ENRICO · 2003 to 2015
$5.3M
Therapeutic Thrombin AnalogsR44HL095315 · NHLBI · ARONORA, INC. · PI GRUBER, ANDRAS, TUCKER, ERIK IAN · 2009 to 2016
$5.0M
Studies on Na+ binding to thrombinR01HL058141 · NHLBI · WASHINGTON UNIVERSITY · PI DI CERA, ENRICO · 1997 to 2010
$4.7M
PH-MEDIATED MECHANISMS OF INJURY IN CEREBRAL ISCHEMIAR01NR003521 · NINR · UNIVERSITY OF TEXAS AT AUSTIN · PI HURN, PATRICIA D. · 1994 to 2013
$4.5M
OPTICAL MICROANGIOGRAHY OF CEREBROVASCULAR PERFUSIONR01HL093140 · NHLBI · UNIVERSITY OF WASHINGTON · PI WANG, RUIKANG · 2008 to 2017
$4.2M
Label-free optical imaging of 3D structural and functional microcirculationsR01EB009682 · NIBIB · UNIVERSITY OF WASHINGTON · PI WANG, RUIKANG · 2009 to 2012
$1.7M
BIOPHYSICAL STUDIES OF THROMBINR29HL049413 · NHLBI · WASHINGTON UNIVERSITY · PI DI CERA, ENRICO · 1995 to 1999
–
NHLBI NIH HHS HL049413NHLBI NIH HHS HL058141NHLBI NIH HHS HL073813NHLBI NIH HHS HL093140NHLBI NIH HHS R01 HL049413NHLBI NIH HHS R01 HL058141NHLBI NIH HHS R01 HL073813NHLBI NIH HHS R01 HL093140NHLBI NIH HHS R01 HL101972NHLBI NIH HHS R01HL101972NHLBI NIH HHS R29 HL049413NHLBI NIH HHS R44 HL095315NIBIB NIH HHS EB009682NIBIB NIH HHS R01 EB009682NINR NIH HHS R01 NR003521PHS HHS L095315
6 · The paper itself

Abstract

background and purposeTreatment of ischemic stroke by activation of endogenous plasminogen using tissue plasminogen activator is limited by bleeding side effects. In mice, treatment of experimental ischemic stroke with activated protein C improves outcomes; however, activated protein C also has bleeding side effects. In contrast, activation of endogenous protein C using thrombin mutant W215A/E217A (WE) is antithrombotic without hemostasis impairment in primates. Therefore, we investigated the outcome of WE-treated experimental ischemic stroke in mice.

methodsThe middle cerebral artery was occluded with a filament for 60 minutes to induce ischemic stroke. Vehicle, recombinant WE, or tissue plasminogen activator was administered during middle cerebral artery occlusion or 2 hours after middle cerebral artery occlusion. Neurological performance was scored daily. Intracranial bleeding and cerebral infarct size, defined by 2,3,5-triphenyltetrazolium chloride exclusion, were determined on autopsy. Hemostasis was evaluated using tail bleeding tests.

resultsWE improved neurological performance scores, increased laser Doppler flowmetry-monitored post-middle cerebral artery occlusion reperfusion of the parietal cortex, and reduced 2,3,5-triphenyltetrazolium chloride-defined cerebral infarct size versus vehicle controls. However, unlike tissue plasminogen activator, WE did not increase tail bleeding or intracranial hemorrhage.

conclusionsWE treatment is neuroprotective without hemostasis impairment in experimental acute ischemic stroke in mice and thus may provide an alternative to tissue plasminogen activator for stroke treatment.

Indexed as

Brain IschemiaStrokeAnimalsAnticoagulantsCerebral InfarctionDisease Models, AnimalHemostasisHumansInfarction, Middle Cerebral ArteryLaser-Doppler FlowmetryMaleMiceMice, Inbred C57BLMutationThrombinTissue Plasminogen ActivatorAnticoagulantsThrombinTissue Plasminogen Activator

Identifiers

PMID21512172
PMCPMC3115697
OpenAlexW2125420449

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.