Evidence map›Paper›PMID 28130211›Full record

ArticleBlood2017

Plasma kallikrein mediates brain hemorrhage and edema caused by tissue plasminogen activator therapy in mice after stroke.

Fabrício Simão, Tuna Ustunkaya, Allen C Clermont, Edward P Feener

Open access · hybridAbstract read
In one paragraph

Article in Blood, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

49 citing papers in PubMed, 97 citations in OpenAlex.

  1. Pharmacological characterization and neuroprotective efficacy of ZHB103, a novel long-acting rhKLK1.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
  2. Article
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  10. Overall cerebral small vessel disease burden is associated with outcome of acute ischemic stroke after mechanical thrombectomy.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
    Article
  11. Hemorrhagic Transformation of Ischemic Strokes.International journal of molecular sciences · 2023
    Review
  12. Observational
  13. Article
  14. Review
  15. Article
  16. Review
  17. Hemorrhagic Conversion of Acute Ischemic Stroke.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Fabrício SimãoResearch Division, Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA.ORCID 0000-0002-6229-7618
Tuna UstunkayaResearch Division, Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA.
Allen C ClermontResearch Division, Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA.
Edward P FeenerResearch Division, Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA.ORCID 0000-0003-1175-8469
Joslin Diabetes Center · US

Funding

SPECIAL ASSAY COREP30DK036836 · NIDDK · JOSLIN DIABETES CENTER · PI JEAN E. SCHAFFER · 1986 to 2026
$50.5M
Role of Hyperglycemia in Intracerebral HemorrhageR01NS077006 · NINDS · JOSLIN DIABETES CENTER · PI RASK-MADSEN, CHRISTIAN · 2012 to 2016
$1.8M
NIDDK NIH HHS P30 DK036836NINDS NIH HHS R01 NS077006
6 · The paper itself

Abstract

Thrombolytic therapy using tissue plasminogen activator (tPA) in acute stroke is associated with increased risks of cerebral hemorrhagic transformation and angioedema. Although plasma kallikrein (PKal) has been implicated in contributing to both hematoma expansion and thrombosis in stroke, its role in the complications associated with the therapeutic use of tPA in stroke is not yet available. We investigated the effects of tPA on plasma prekallikrein (PPK) activation and the role of PKal on cerebral outcomes in a murine thrombotic stroke model treated with tPA. We show that tPA increases PKal activity in vitro in both murine and human plasma, via a factor XII (FXII)-dependent mechanism. Intravenous administration of tPA increased circulating PKal activity in mice. In mice with thrombotic occlusion of the middle cerebral artery, tPA administration increased brain hemorrhage transformation, infarct volume, and edema. These adverse effects of tPA were ameliorated in PPK (Klkb1)-deficient and FXII-deficient mice and in wild-type (WT) mice pretreated with a PKal inhibitor prior to tPA. tPA-induced brain hemisphere reperfusion after photothrombolic middle cerebral artery occlusion was increased in Klkb1

Indexed as

Administration, IntravenousAngioedemaAnimalsCerebral HemorrhageDisease Models, AnimalFactor XIIFibrinolytic AgentsGene ExpressionHumansInfarction, Middle Cerebral ArteryMaleMatrix Metalloproteinase 9MiceMice, KnockoutPlasma KallikreinStrokeFactor XIIFibrinolytic AgentsMatrix Metalloproteinase 9Mmp9 protein, mousePlasma KallikreinTissue Plasminogen Activator

Identifiers

PMID28130211
PMCPMC5399481
OpenAlexW2582357631

What OpenQuestion holds

Textmetadata
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.