Evidence map›Paper›PMID 11018116›Full record

ArticleThe Journal of physiology2000

Acute effects of bradykinin on cerebral microvascular permeability in the anaesthetized rat.

M H Sarker, D E Hu, P A Fraser

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
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  4. Contributions of the glycocalyx, endothelium, and extravascular compartment to the blood-brain barrier.Proceedings of the National Academy of Sciences of the United States of America · 2018
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  5. Review
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  9. Connexin channels provide a target to manipulate brain endothelial calcium dynamics and blood-brain barrier permeability.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2011
    Article
  10. Article
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  12. The role of bradykinin B(1) and B(2) receptors for secondary brain damage after traumatic brain injury in mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2010
    Article
  13. Article
  14. Review
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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

3 authors at 1 institution in 1 country.

M H SarkerCentre for Cardiovascular Biology and Medicine, King's College London, New Hunt's House, Guy's Campus, London SE1 1UL, UK.
D E Hu
P A Fraser
King's College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. The permeability response to acutely applied bradykinin and [des-Arg9]-bradykinin on single cerebral venular capillaries has been investigated using the low molecular mass fluorescent dyes Lucifer Yellow and Sulforhodamine B with the single vessel occlusion technique. 2. When bradykinin was applied repeatedly for up to 2 h, the permeability increase was small and reversible for concentrations that ranged from 5 nM to 50 microM. 3. The logEC50 of the permeability response to bradykinin was -5.3 +/- 0.15 (logM; mean +/- s.e.m.). This was reduced to -6.37 +/- 0.24 with the angiotensin-converting enzyme inhibitor captopril, to -6.33 +/- 0.19 with the neutral endopeptidase inhibitor phosphoramidon and to -7.3 +/- 0.20 with captopril and phosphoramidon combined. 4. The permeability response to bradykinin was blocked by the bradykinin B2 receptor antagonist HOE 140, by inhibition of the Ca2+-independent phospholipase A2, by the scavenging of free radicals, or by inhibition of both cyclo-oxygenase and lipoxygenase in combination. Block of Ca2+ entry channels with SKF 96365 had no effect on the response. 5. Application of [des-Arg9]-bradykinin also increased permeability over the concentration range 5 nM to 50 microM, with a logEC50 of -5.6 +/- 0. 37. This response was not affected by free radical scavenging, but was completely blocked by the histamine H2 receptor blocker cimetidine. 6. These results imply that the acute permeability response to bradykinin is mediated via the release of arachidonic acid, which is acted on by cyclo-oxygenase and lipoxygenase resulting in the formation of free radicals, and that the response to [des-Arg9]-bradykinin is mediated via histamine.

Indexed as

AnesthesiaAngiotensin-Converting Enzyme InhibitorsAnimalsArachidonic AcidBradykininBradykinin Receptor AntagonistsCapillariesCapillary PermeabilityCerebrovascular CirculationDose-Response Relationship, DrugFemaleFree RadicalsFree Radical ScavengersMaleRatsRats, WistarAngiotensin-Converting Enzyme InhibitorsArachidonic AcidBradykininbradykinin, des-Arg(9)-Bradykinin Receptor AntagonistsFree RadicalsFree Radical Scavengers

Identifiers

PMID11018116
PMCPMC2270109
OpenAlexW2092494622

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.