Evidence map›Paper›PMID 9826607›Full record

ArticleBiophysical journal1998

Activation of KATP channels by Na/K pump in isolated cardiac myocytes and giant membrane patches.

A Y Kabakov

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

25 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Role of NaInternational journal of molecular sciences · 2024
    Review
  3. Subcellular trafficking and endocytic recycling of KAmerican journal of physiology. Cell physiology · 2022
    Review
  4. Article
  5. KATP Channels in the Cardiovascular System.Physiological reviews · 2016
    Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Single K ATP channel opening in response to action potential firing in mouse dentate granule neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2011
    Article
  14. K(ATP) channels process nucleotide signals in muscle thermogenic response.Critical reviews in biochemistry and molecular biology · 2010
    Article
  15. Review
  16. Article
  17. Article
  18. Ketogenic diet metabolites reduce firing in central neurons by opening K(ATP) channels.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    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

1 author at 1 institution in 1 country.

A Y KabakovDepartment of Physiology, University of Texas, Southwestern Medical Center at Dallas, Dallas, Texas 75235 USA. kabakov@nersp.nerdc.ufl.edu
The University of Texas Southwestern Medical Center · US

Funding

NHLBI NIH HHS 1RO1HI51323-01
6 · The paper itself

Abstract

Strophanthidin inhibits KATP channels in 2,4-dinitrophenol-poisoned heart cells (). The current study shows that the Na/K pump interacts with KATP current (IK-ATP) via submembrane ATP depletion in isolated giant membrane patches and in nonpoisoned guinea pig cardiac cells in whole-cell configuration. IK-ATP was inhibited by ATP, glibenclamide, or intracellular Cs+. Na/K pump inactivation by substitution of cytoplasmic Na+ for Li+ or N-methylglucamine decreased both IK-ATP by 1/3 (1 mM ATP, zero calcium), and IC50 of ATP for IK-ATP (0.3 +/- 0.1 mM) by 2/5. The Na+/Li+ replacement had no effect on IK-ATP at low pump activity ([ATP] </= 0.1 mM or 100 microM ouabain) or when IK-ATP was completely inhibited by 10 mM ATP. In whole-cell configuration, ouabain inhibited up to 60% of inwardly rectifying IK-ATP at 1 mM ATP in the pipette but not at 10 mM ATP and 10 mM phosphocreatine when IK-ATP was always blocked. However, mathematical simulation of giant-patch experiments revealed that only 20% of ATP depletion may be attributed to the ATP concentration gradient in the bulk solution, and the remaining 80% probably occurs in the submembrane space.

Indexed as

Adenosine TriphosphateAnimalsBiophysical PhenomenaBiophysicsEnzyme ActivationFemaleGuinea PigsIn Vitro TechniquesMembrane PotentialsMembranesModels, BiologicalMyocardiumOuabainPotassium ChannelsSodiumSodium-Potassium-Exchanging ATPaseAdenosine TriphosphateOuabainPotassium ChannelsSodiumSodium-Potassium-Exchanging ATPase

Identifiers

PMID9826607
PMCPMC1299958
OpenAlexW1964753503

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.