Evidence map›Paper›PMID 25873308›Full record

ArticleASN neuro

Prostaglandin E2 EP2 receptor deletion attenuates intracerebral hemorrhage-induced brain injury and improves functional recovery.

Jenna L Leclerc, Andrew S Lampert, Matthew A Diller, Joshua B Immergluck, Sylvain Doré

Open access · goldAbstract read
In one paragraph

Article in ASN neuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
6.0field-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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Role of the PGECNS neuroscience & therapeutics · 2020
    Article
  5. Review
  6. Prostaglandin EJournal of the American Heart Association · 2018
    Article
  7. Increased brain hemopexin levels improve outcomes after intracerebral hemorrhage.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Article
  8. Article
  9. The absence of the CD163 receptor has distinct temporal influences on intracerebral hemorrhage outcomes.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Article
  10. Genetic Deletion of PGFFrontiers in neuroscience · 2018
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Cerebroprotection by the neuronal PGE2 receptor EP2 after intracerebral hemorrhage in middle-aged mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  17. PGE2-EP3 signaling exacerbates intracerebral hemorrhage outcomes in 24-mo-old mice.American journal of physiology. Heart and circulatory physiology · 2016
    Article
  18. Review
  19. Article
  20. Review
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

5 authors at 1 institution in 1 country.

Jenna L LeclercDepartment of Anesthesiology, University of Florida, Gainesville, FL, USA Department of Neuroscience, University of Florida, Gainesville, FL, USA.
Andrew S LampertDepartment of Anesthesiology, University of Florida, Gainesville, FL, USA.
Matthew A DillerDepartment of Anesthesiology, University of Florida, Gainesville, FL, USA.
Joshua B ImmergluckDepartment of Anesthesiology, University of Florida, Gainesville, FL, USA.
Sylvain DoréDepartment of Anesthesiology, University of Florida, Gainesville, FL, USA Department of Neuroscience, University of Florida, Gainesville, FL, USA Departments of Neurology, Psychiatry, and Pharmaceutics, University of Florida, Gainesville, FL, USA sdore@ufl.edu.
University of Florida · US

Funding

Role of Prostaglandin Receptors in StrokeR01NS046400 · NINDS · UNIVERSITY OF FLORIDA · PI DORE, SYLVAIN · 2003 to 2014
$3.0M
Role of Haptoglobin and CD163 in brain hemorrhageF31NS086441 · NINDS · UNIVERSITY OF FLORIDA · PI LECLERC, JENNA · 2014 to 2016
$86k
NINDS NIH HHS F31 NS086441NINDS NIH HHS R01 NS046400
6 · The paper itself

Abstract

Intracerebral hemorrhage (ICH) is a devastating type of stroke characterized by bleeding into the brain parenchyma and secondary brain injury resulting from strong neuroinflammatory responses to blood components. Production of prostaglandin E2 (PGE2) is significantly upregulated following ICH and contributes to this inflammatory response in part through its E prostanoid receptor subtype 2 (EP2). Signaling through the EP2 receptor has been shown to affect outcomes of many acute and chronic neurological disorders; although, not yet explored in the context of ICH. Wildtype (WT) and EP2 receptor knockout (EP2(-/-)) mice were subjected to ICH, and various anatomical and functional outcomes were assessed by histology and neurobehavioral testing, respectively. When compared with age-matched WT controls, EP2(-/-) mice had 41.9 ± 4.7% smaller ICH-induced brain lesions and displayed significantly less ipsilateral hemispheric enlargement and incidence of intraventricular hemorrhage. Anatomical outcomes correlated with improved functional recovery as identified by neurological deficit scoring. Histological staining was performed to begin investigating the mechanisms involved in EP2-mediated neurotoxicity after ICH. EP2(-/-) mice exhibited 45.5 ± 5.8% and 41.4 ± 8.1% less blood and ferric iron accumulation, respectively. Furthermore, significantly less striatal and cortical microgliosis, striatal and cortical astrogliosis, blood-brain barrier breakdown, and peripheral neutrophil infiltration were seen in EP2(-/-) mice. This study is the first to suggest a deleterious role for the PGE2-EP2 signaling axis in modulating brain injury, inflammation, and functional recovery following ICH. Targeting the EP2 G protein-coupled receptor may represent a new therapeutic avenue for the treatment of hemorrhagic stroke.

Indexed as

AnimalsAstrocytesBlood-Brain BarrierBrainCerebral HemorrhageDisease Models, AnimalGliosisIronMaleMice, Inbred C57BLMice, KnockoutMicrogliaNeuroimmunomodulationNeutrophil InfiltrationReceptors, Prostaglandin E, EP2 SubtypeRecovery of FunctionIronReceptors, Prostaglandin E, EP2 Subtypecollagenasegliosisironneuroinflammationneuroprotectionstroke

Identifiers

PMID25873308
PMCPMC4720177
OpenAlexW2079393262

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.