Evidence map›Paper›PMID 1710939›Full record

ArticleBiophysical journal1991

Quantitative video microscopy of patch clamped membranes stress, strain, capacitance, and stretch channel activation.

M Sokabe, F Sachs, Z Q Jing

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
6.6field-weighted citation impact, top 2% 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

95 citing papers in PubMed, 259 citations in OpenAlex.

  1. Article
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  9. Review
  10. Activation of Piezo1 but Not NaUltrasound in medicine & biology · 2018
    Article
  11. Control of cell behaviour through nanovibrational stimulation: nanokicking.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2018
    Review
  12. Studying Mechanosensitivity of Two-Pore Domain KMethods in molecular biology (Clifton, N.J.) · 2018
    Article
  13. Article
  14. Whole-GUV patch-clamping.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

35 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

M SokabeDepartment of Biophysical Sciences, State University of New York, Buffalo 14214.
F Sachs
Z Q Jing
University at Buffalo, State University of New York · US

Funding

IONIC CHANNELS IN TISSUE CULTURED CELLSR01DK037792 · NIDDK · STATE UNIVERSITY OF NEW YORK AT BUFFALO · PI SACHS, FREDERICK · 1986 to 1990
–
NIDDK NIH HHS DK-37792
6 · The paper itself

Abstract

Membrane patches from chick skeletal muscle were stretched by applying controlled suction or pressure to the pipette. From images of the patch, the patch dimensions (area and radius of curvature) were computed by nonlinear regression of the images to a geometric model. With no applied pressure, patch membranes are nearly planar and normal to the wall of the pipette. With increasing pressure gradients, the patch bulges, the radius of curvature decreases, and the area increases. The patch capacitance changes in exact proportion to the change in area at a rate of 0.7 microF/cm2. The increase in area is due to a flow of lipid (with perhaps small amounts of diffusible protein) along the walls of the pipette into the patch. The flow is reversible with a relaxation of the pressure gradient. The area elastic constant of the membrane is approximately 50 dyn/cm, insensitive to cytochalasin B and probably represents the elasticity of the underlying spectrin/dystrophin network. Simultaneous measurements of stretch activated (SA) ion channel activity in the patch showed that the sensitivity of channels from different patches, although different when calculated as a function of applied pressure, was the same when calculated as a function of tension. Because patch lipid is free to flow, and hence stress-free in the steady state, SA channels must be activated by tension in the cytoskeleton.

Indexed as

AnimalsBiophysical PhenomenaBiophysicsCytoskeletonElectric ConductivityIon ChannelsMembranesMusclesPressureStress, MechanicalIon Channels

Identifiers

PMID1710939
PMCPMC1281234
OpenAlexW2025720625

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.