Evidence map›Paper›PMID 10673547›Full record

ArticleThe Journal of physiology2000

On the discrepancy between whole-cell and membrane patch mechanosensitivity in Xenopus oocytes.

Y Zhang, O P Hamill

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of physiology, 2000. 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
3.0field-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

25 citing papers in PubMed, 71 citations in OpenAlex.

  1. Patch-Clamp Analysis of the Mitochondrial HFrontiers in physiology · 2020
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Twenty odd years of stretch-sensitive channels.Pflugers Archiv : European journal of physiology · 2006
    Review
  15. Membrane reserves and hypotonic cell swelling.The Journal of membrane biology · 2006
    Article
  16. Article
  17. Article
  18. Article
  19. Gramicidin A channels switch between stretch activation and stretch inactivation depending on bilayer thickness.Proceedings of the National Academy of Sciences of the United States of America · 2002
    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.

Y ZhangPhysiology and Biophysics, University of Texas Medical Branch, Galveston, TX 77555-0641, USA.
O P Hamill
The University of Texas Medical Branch at Galveston · US

Funding

MOLECULAR MECHANISMS OF MECHANOSENSITIVITYR01AR042782 · NIAMS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI HAMILL, OWEN P · 1994 to 1997
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MOLECULAR MECHANISMS OF MECHANOSENSITIVITYR55AR042782 · NIAMS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI HAMILL, OWEN P · 1993 to 1993
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NIAMS NIH HHS AR42782
6 · The paper itself

Abstract

1. Mechanical stimulation of voltage-clamped Xenopus oocytes by inflation, aspiration, or local indentation failed to activate an increase in membrane conductance up to the point of causing visible oocyte damage. 2. The absence of mechanosensitivity is not due to the vitelline membrane, rapid MG channel adaptation or tension-sensitive recruitment of new membrane. 3. Membrane capacitance measurements indicate that the oocyte surface area is at least 5 times larger than that predicted assuming a smooth sphere. We propose that this excess membrane area provides an immediate reserve that can 'buffer' membrane tension changes and thus prevent MG channel activation. 4. High-resolution images of tightly sealed patches and patch capacitance measurements indicate a smooth membrane that is pulled flat and perpendicular across the inside of the pipette. Brief steps of pressure or suction cause rapid and reversible membrane flexing and MG channel activation. 5. We propose that changes in membrane geometry induced during cell growth and differentiation or as a consequence of specific physiological and pathological conditions may alter mechanosensitivity of a cell independently of the intrinsic properties of channel proteins.

Indexed as

Adaptation, PhysiologicalAnimalsCell MembraneElectric ConductivityFemaleInsufflationIon Channel GatingMechanoreceptorsOocytesPatch-Clamp TechniquesPhysical StimulationSuctionVitelline MembraneXenopus laevis

Identifiers

PMID10673547
PMCPMC2269787
OpenAlexW2095544165

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.