Evidence map›Paper›PMID 22301733›Full record

ArticleJournal of vascular research2012

Pannexin protein expression in the rat middle cerebral artery.

Alan R Burns, Sharon C Phillips, Elke M Sokoya

Open access · bronzeAbstract read
In one paragraph

Article in Journal of vascular research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.7field-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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Pannexins in the vasculature.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  2. Pannexin channels in the kidney.American journal of physiology. Renal physiology · 2025
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Role of connexins and pannexins in cardiovascular physiology.Cellular and molecular life sciences : CMLS · 2015
    Review
  12. Emerging concepts regarding pannexin 1 in the vasculature.Biochemical Society transactions · 2015
    Review
  13. The pannexins: past and present.Frontiers in physiology · 2014
    Review
  14. Article
  15. Article
  16. Sulfonylurea receptor 1 in central nervous system injury: a focused review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2012
    Review
  17. 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

3 authors at 2 institutions in 2 countries.

Alan R BurnsCollege of Optometry, University of Houston, Houston, Tex., USA.
Sharon C Phillips
Elke M Sokoya
Flinders University · AUUniversity of Houston · US

Funding

Research Programming ModuleP30EY007551 · NEI · UNIVERSITY OF HOUSTON · PI VALLABH E DAS · 1988 to 2026
$16.4M
ROLE OF INFLAMMATION IN EARLY MYOCARDIAL ISCHEMIAP01HL042550 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI ENTMAN, MARK L · 1990 to 2004
$10.4M
Leukocyte Trafficking: From Flow Blood to TissueR01HL070537 · NHLBI · GEORGIA INSTITUTE OF TECHNOLOGY · PI MC INTIRE, LARRY V. · 2003 to 2007
$4.6M
Role of Gap Junctions in EDHF-Mediated DilationsR01HL072954 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI SOKOYA, ELKE M · 2004 to 2007
$1.3M
NEUTROPHILS TRANSENDOTHELIAL MIGRATION: MOLECULAR EVENTSR01AI046773 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI BURNS, ALAN R · 2000 to 2004
$1.1M
NEI NIH HHS P30 EY007551NHLBI NIH HHS HL070537NHLBI NIH HHS HL42550NHLBI NIH HHS HL72954NHLBI NIH HHS P01 HL042550NHLBI NIH HHS R01 HL070537NHLBI NIH HHS R01 HL072954NIAID NIH HHS AI46773NIAID NIH HHS R01 AI046773
6 · The paper itself

Abstract

backgroundConnexin proteins are well known to participate in cell-to-cell communication within the cerebral vasculature. Pannexins are a recently discovered family of proteins that could potentially be involved in cell-to-cell communication. Herein, we sought to determine whether pannexins are expressed in rat middle cerebral artery (MCA).

methodsA combination of RT-PCR, immunoblotting and immunohistochemistry techniques was used to characterize the expression pattern of pannexins in rat MCA. A fluorescent dye uptake approach in cultured smooth muscle cells was used to determine whether these cells have functional hemichannels.

resultsWe report for the first time that pannexins are expressed in the cerebral vasculature. We reveal that pannexin 1 is expressed in smooth muscle but not in endothelium and pannexin 2 is expressed in both endothelium and smooth muscle. Fluorescent dye entered cultured smooth muscle cells in the absence of extracellular calcium or when the cells were depolarized, which was prevented by the putative hemichannel blocker carbenoxolone.

conclusionsThe identification of pannexins in rat MCA indicates that pannexin expression is not restricted to neuronal cells. Dye uptake in cultured smooth muscle cells exhibited properties similar to those of connexin and pannexin hemichannels, which may represent another form of cell-to-cell communication within the vasculature.

Indexed as

AnimalsCells, CulturedConnexinsFluorescent DyesImmunohistochemistryIsoquinolinesMaleMiddle Cerebral ArteryMuscle, Smooth, VascularNerve Tissue ProteinsRatsRats, Long-EvansReverse Transcriptase Polymerase Chain ReactionConnexinsFluorescent DyesIsoquinolineslucifer yellowNerve Tissue Proteinspannexin 1, ratpannexin 2, rat

Identifiers

PMID22301733
PMCPMC3290039
OpenAlexW2060035487

What OpenQuestion holds

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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.