Evidence map›Paper›PMID 19597977›Full record

ArticleJournal of bioenergetics and biomembranes2009

Direct measurement of energy fluxes from mitochondria into cytoplasm in permeabilized cardiac cells in situ: some evidence for Mitochondrial Interactosome.

Natalia Timohhina, Rita Guzun, Kersti Tepp, Claire Monge, Minna Varikmaa, Heiki Vija, Peeter Sikk, Tuuli Kaambre, Dan Sackett, Valdur Saks

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of bioenergetics and biomembranes, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

38 citing papers in PubMed, 71 citations in OpenAlex.

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  10. Ageing, sex, and cardioprotection.British journal of pharmacology · 2020
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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

10 authors at 4 institutions in 3 countries.

Natalia TimohhinaLaboratory of Bioenergetics, National Institute of Chemical Physics and Biophysics, Tallinn, Estonia.
Rita Guzun
Kersti Tepp
Claire Monge
Minna Varikmaa
Heiki Vija
Peeter Sikk
Tuuli Kaambre
Dan Sackett
Valdur Saks
National Institute of Chemical Physics and Biophysics · EEUniversité Joseph Fourier · FRInserm · FRNational Institutes of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to measure energy fluxes from mitochondria in isolated permeabilized cardiomyocytes. Respiration of permeabilized cardiomyocytes and mitochondrial membrane potential were measured in presence of MgATP, pyruvate kinase - phosphoenolpyruvate and creatine. ATP and phosphocreatine concentrations in medium surrounding cardiomyocytes were determined. While ATP concentration did not change in time, mitochondria effectively produced phosphocreatine (PCr) with PCr/O(2) ratio equal to 5.68 +/- 0.14. Addition of heterodimeric tubulin to isolated mitochondria was found to increase apparent Km for exogenous ADP from 11 +/- 2 microM to 330 +/- 47 microM, but creatine again decreased it to 23 +/- 6 microM. These results show directly that under physiological conditions the major energy carrier from mitochondria into cytoplasm is PCr, produced by mitochondrial creatine kinase (MtCK), which functional coupling to adenine nucleotide translocase is enhanced by selective limitation of permeability of mitochondrial outer membrane within supercomplex ATP Synthasome-MtCK-VDAC-tubulin, Mitochondrial Interactosome.

Indexed as

Adenosine TriphosphateAnimalsCell RespirationChromatography, High Pressure LiquidCreatine Kinase, Mitochondrial FormCreatinineEnergy MetabolismMembrane Potential, MitochondrialMitochondria, HeartModels, BiologicalOxygen ConsumptionPhosphocreatinePhosphoenolpyruvatePyruvate KinaseRatsTubulinAdenosine TriphosphateCreatine Kinase, Mitochondrial FormCreatininePhosphocreatinePhosphoenolpyruvatePyruvate KinaseTubulin

Identifiers

PMID19597977
OpenAlexW2063767304

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.