Evidence map›Paper›PMID 10465739›Full record

ArticleBiophysical journal1999

Model of intercellular calcium oscillations in hepatocytes: synchronization of heterogeneous cells.

T Höfer

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 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 156 citations in OpenAlex.

  1. Review
  2. Modeling IPBiophysical journal · 2023
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  17. Equality of average and steady-state levels in some nonlinear models of biological oscillations.Theory in biosciences = Theorie in den Biowissenschaften · 2008
    Article
  18. Integrating biosystem models using waveform relaxation.EURASIP journal on bioinformatics & systems biology · 2008
    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.

T HöferTheoretical Biophysics, Institute of Biology, Humboldt University Berlin, D-10115 Berlin, Germany. thoefer@bp.biologie.hu-berlin.de
Humboldt-Universität zu Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatocytes respond with repetitive cytosolic calcium spikes to stimulation by vasopressin and noradrenalin. In the intact liver, calcium oscillations occur in a synchronized fashion as periodic waves across whole liver lobules, but the mechanism of intercellular coupling remains unclear. Recently, it has been shown that individual hepatocytes can have very different intrinsic oscillation frequencies but become phase-locked when coupled by gap junctions. We investigate the gap junction hypothesis for intercellular synchronization by means of a mathematical model. It is shown that junctional calcium fluxes are effective in synchronizing calcium oscillations in coupled hepatocytes. An experimentally testable estimate is given for the junctional coupling coefficient required; it mainly depends on the degree of heterogeneity between cells. Intercellular synchronization by junctional calcium diffusion may occur also in other cell types exhibiting calcium-activated calcium release through InsP(3) receptors, if the gap junctional coupling is strong enough and the InsP(3) receptors are sufficiently sensitized by InsP(3).

Indexed as

Models, BiologicalAnimalsCalciumCalcium-Transporting ATPasesCell MembraneCytosolEndoplasmic ReticulumGap JunctionsKineticsLiverNorepinephrineOscillometrySignal TransductionVasopressinsCalciumCalcium-Transporting ATPasesNorepinephrineVasopressins

Identifiers

PMID10465739
PMCPMC1300416
OpenAlexW1992462569

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.