Evidence map›Paper›PMID 7696492›Full record

ArticleBiophysical journal1994

The fundamental motor of the human neutrophil is not random: evidence for local non-Markov movement in neutrophils.

R S Hartman, K Lau, W Chou, T D Coates

Abstract read
In one paragraph

Article in Biophysical journal, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
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

24 citing papers in PubMed.

  1. Review
  2. Cell migration: Beyond Brownian motion.Biophysical journal · 2024
    Article
  3. Random walk and cell morphology dynamics inFrontiers in cell and developmental biology · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Velocity alignment leads to high persistence in confined cells.Physical review. E, Statistical, nonlinear, and soft matter physics · 2014
    Article
  10. Phase geometries of two-dimensional excitable waves govern self-organized morphodynamics of amoeboid cells.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  11. Article
  12. Article
  13. Directional decisions during neutrophil chemotaxis inside bifurcating channels.Integrative biology : quantitative biosciences from nano to macro · 2010
    Article
  14. Article
  15. Bipedal locomotion in crawling cells.Biophysical journal · 2010
    Article
  16. Article
  17. Anomalous dynamics of cell migration.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  18. Article
  19. Article
  20. Cellular memory: neutrophil orientation reverses during temporally decreasing chemoattractant concentrations.Proceedings of the National Academy of Sciences of the United States of America · 1998
    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

4 authors.

R S HartmanDivision of Hematology-Oncology, Childrens Hospital, University of Southern California School of Medicine, Los Angeles 90027.
K Lau
W Chou
T D Coates

Funding

ROLE OF GRANULES &ORGANELLES IN LEUKOCYTE ACTIVATIONR01AI023547 · NIAID · CHILDREN'S HOSPITAL LOS ANGELES · PI COATES, THOMAS DUANE · 1985 to 1998
–
NIAID NIH HHS AI23547
6 · The paper itself

Abstract

The search for a fundamental mechano-chemical process that results in net cell motion has led investigators to fit neutrophil tracking data to well described physical models in hopes of understanding the functional form of the driving force. The Ornstein-Uhlenbeck (OU) equation for mean square displacement describes a locally persistent and globally random process and is often used as a starting point for analysis of neutrophil displacements. Based upon the apparently close fit of neutrophil tracking data to this equation and the nature of its derivation, biologists have inferred that the motor of the neutrophil is best represented as a random process. However, 24 of 37 neutrophil paths that we investigated preferentially display programmatic rather than Markov short term correlations between displacements or turn angles. These correlations reflect a bimodal rather than a uniform distribution of subpath correlations in the two variables, and are strongly sampling rate-dependent. Significant periodic components of neutrophil shape change are also detected at the same time scale using either Fourier or elliptical Fourier transform-based descriptors of the neutrophil perimeter. Oscillations in neutrophil velocity have the same period. Taken together, these data suggest a nonstochastic, and perhaps periodic, component to the process driving neutrophil movement.

Indexed as

Biophysical PhenomenaBiophysicsCell MovementCell PolarityFourier AnalysisHumansIn Vitro TechniquesMarkov ChainsModels, BiologicalNeutrophils

Identifiers

PMID7696492
PMCPMC1225639

What OpenQuestion holds

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Registered trials

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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.