Evidence map›Paper›PMID 19429641›Full record

ArticleExperimental physiology2009

Candesartan pretreatment is cerebroprotective in a rat model of endothelin-1-induced middle cerebral artery occlusion.

Adam P Mecca, Timothy E O'Connor, Michael J Katovich, Colin Sumners

Open access · bronzeAbstract read
In one paragraph

Article in Experimental physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 16% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Renin-angiotensin system gene expression and neurodegenerative diseases.Journal of the renin-angiotensin-aldosterone system : JRAAS · 2016
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Impact of Early High-protein Diet on Neurofunctional Recovery in Rats with Ischemic Stroke.Medical science monitor : international medical journal of experimental and clinical research · 2018
    Article
  10. Potent neuroprotection after stroke afforded by a double-knot spider-venom peptide that inhibits acid-sensing ion channel 1a.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  11. Article
  12. Article
  13. Therapeutic potential of the renin angiotensin system in ischaemic stroke.Experimental & translational stroke medicine · 2016
    Review
  14. Review
  15. Review
  16. Bradykinin antagonist counteracts the acute effect of both angiotensin-converting enzyme inhibition and of angiotensin receptor blockade on the lower limit of autoregulation of cerebral blood flow.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2014
    Article
  17. Article
  18. Article
  19. Cerebroprotective action of angiotensin peptides in stroke.Clinical science (London, England : 1979) · 2014
    Review
  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

4 authors at 2 institutions in 1 country.

Adam P MeccaDepartment of Physiology and Functional Genomics, University of Florida, Gainesville, FL, USA.
Timothy E O'Connor
Michael J Katovich
Colin Sumners
Allen Institute for Brain Science · USUniversity of Florida · US

Funding

Cerebroprotection via viral-mediated gene delivery of angiotensin AT2 receptorsF30NS060335 · NINDS · UNIVERSITY OF FLORIDA · PI MECCA, ADAM PETER · 2008 to 2011
$141k
NINDS NIH HHS F30 NS060335
6 · The paper itself

Abstract

Endogenous levels of angiotensin II (Ang II) are increased in the cortex and hypothalamus following stroke, and Ang II type 1 receptor blockers (ARBs) have been shown to attenuate the deleterious effects in animal stroke models using middle cerebral artery (MCA) intraluminal occlusion procedures. However, the endothelin-1 (ET-1)-induced middle cerebral artery occlusion (MCAO) model of cerebral ischaemia is thought to more closely mimic the temporal events of an embolic stroke. This method provides rapid occlusion of the MCA and a gradual reperfusion that lasts for 16-22 h. The aim of the present study was to evaluate whether systemic administration of an ARB prior to ET-1-induced MCAO would provide cerebroprotection during this model of ischaemic stroke. Injection of 3 microl of 80 microM ET-1 adjacent to the MCA resulted in complete occlusion of the vessel that resolved over a period of 30-40 min. Following ET-1-inducedMCAO, rats had significant neurological impairment, as well as an infarct that consisted of 30% of the ipsilateral grey matter. Systemic pretreatment with 0.2 mg kg(-1) day(-1) candesartan for 7 days attenuated both the infarct size and the neurological deficits caused by ET-1-induced MCAO without altering blood pressure. This study confirms the cerebroprotective properties of ARBs during ischaemic stroke and validates the ET-1-induced MCAO model for examination of the role of the brain renin-angiotensin system in ischaemic stroke.

Indexed as

Angiotensin II Type 1 Receptor BlockersAnimalsBenzimidazolesBiphenyl CompoundsBrain IschemiaCerebral InfarctionDisease Models, AnimalEndothelin-1Infarction, Middle Cerebral ArteryMaleRatsRats, Sprague-DawleyStrokeTetrazolesAngiotensin II Type 1 Receptor BlockersBenzimidazolesBiphenyl CompoundscandesartanEndothelin-1Tetrazoles

Identifiers

PMID19429641
PMCPMC2742297
OpenAlexW2121991673

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.