Evidence map›Paper›PMID 10096909›Full record

ArticleBiophysical journal1999

Time courses of mammalian cell electropermeabilization observed by millisecond imaging of membrane property changes during the pulse.

B Gabriel, J Teissié

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

40 citing papers in PubMed, 153 citations in OpenAlex.

  1. Article
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  6. A Review on Electroporation-Based Intracellular Delivery.Molecules (Basel, Switzerland) · 2018
    Review
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  13. Measuring the potential energy barrier to lipid bilayer electroporation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Article
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  17. 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

2 authors at 1 institution in 1 country.

B GabrielInstitut de Pharmacologie et de Biologie Structurale-Centre National de la Recherche Scientifique (UPR 9062), F-31062 Toulouse, France. gabriel@ipbs.fr
J Teissié
Institut de Pharmacologie et de Biologie Structurale · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Time courses of electropermeabilization were analyzed during the electric field application using a rapid fluorescent imaging system. Exchanges of calcium ions through electropermeabilized membrane of Chinese hamster ovary cells were found to be asymmetrical. Entry of calcium ions during a millisecond pulse occurred on the anode-facing cell hemisphere. Entry through the region facing the cathode was observed only after the pulse. Leakage of intracellular calcium ions from electropermeabilized cell in low-calcium content medium was observed only from the anode-facing side. The exchanges during the pulse were mostly due to diffusion-driven processes, i.e., governed by the concentration gradient. Interaction of propidium iodide, a dye sensitive to the structural alteration of membrane, with cell membrane was asymmetrical during electropermeabilization. Localized enhancement of the dye fluorescence was observed during and after the pulsation on the cell surface. Specific staining of a limited anode-facing part of the membrane was observed as soon as the pulse was applied. The membrane fluorescence level increased during and immediately after the pulse whereas the geometry of the staining was unchanged. The membrane regions stained by propidium iodide were the same as those where calcium exchanges occurred. The fraction of the membrane on which structural alterations occurred was defined by the field strength. The density of defects was governed by the pulse duration. Electropermeabilization is a localized but asymmetrical process. The membrane defects are created unequally on the two cell sides during the pulse, implying a vectorial effect of the electric field on the membrane.

Indexed as

AnimalsBiophysical PhenomenaBiophysicsCalciumCell MembraneCell Membrane PermeabilityCHO CellsColoring AgentsCricetinaeElectric StimulationHeLa CellsHumansIon TransportPropidiumCalciumColoring AgentsPropidium

Identifiers

PMID10096909
PMCPMC1300187
OpenAlexW2051719328

What OpenQuestion holds

Texttitle and abstract
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.