Evidence map›Paper›PMID 22481627›Full record

ReviewNeurochemical research2012

Extracellular K⁺ and astrocyte signaling via connexin and pannexin channels.

Eliana Scemes, David C Spray

Open access · greenAbstract readReview
In one paragraph

Review in Neurochemical research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 88 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Exacerbation of Epilepsy by Astrocyte Alkalization and Gap Junction Uncoupling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  10. Review
  11. Article
  12. Gap junctions, pannexins and pain.Neuroscience letters · 2019
    Review
  13. Connexins in Astrocyte Migration.Frontiers in pharmacology · 2019
    Review
  14. Connexins and Disease.Cold Spring Harbor perspectives in biology · 2018
    Review
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  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

2 authors at 1 institution in 1 country.

Eliana ScemesDominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA. eliana.scemes@einstein.yu.edu
David C Spray
Albert Einstein College of Medicine · US

Funding

Mechanisms of ATP Release from Glial ProgenitorsR01NS052245 · NINDS · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI SCEMES, ELIANA · 2007 to 2011
$1.6M
NINDS NIH HHS R01-NS04128NINDS NIH HHS R01 NS052245NINDS NIH HHS R01-NS052245
6 · The paper itself

Abstract

Astrocytes utilize two major pathways to achieve long distance intercellular communication. One pathway involves direct gap junction mediated signal transmission and the other consists of release of ATP through pannexin channels and excitation of purinergic receptors on nearby cells. Elevated extracellular potassium to levels occurring around hyperactive neurons affects both gap junction and pannexin1 channels. The action on Cx43 gap junctions is to increase intercellular coupling for a period that long outlasts the stimulus. This long term increase in coupling, termed "LINC", is mediated through calcium and calmodulin dependent activation of calmodulin dependent kinase (CaMK). Pannexin1 can be activated by elevations in extracellular potassium through a mechanism that is quite different. In this case, potassium shifts activation potentials to more physiological range, thereby allowing channel opening at resting or slightly depolarized potentials. Enhanced activity of both these channel types by elevations in extracellular potassium of the magnitude occurring during periods of high neuronal activity likely has profound effects on intercellular signaling among astrocytes in the nervous system.

Indexed as

Signal TransductionAnimalsAstrocytesCalcium SignalingConnexinsExtracellular SpaceGap JunctionsHumansConnexins

Identifiers

PMID22481627
PMCPMC3489984
OpenAlexW1976896898

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.