Evidence map›Paper›PMID 22750013›Full record

ArticleBone2012

Calcium response in osteocytic networks under steady and oscillatory fluid flow.

X Lucas Lu, Bo Huo, Miri Park, X Edward Guo

Open access · bronzeAbstract read
In one paragraph

Article in Bone, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

69 citing papers in PubMed, 105 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. CaCellular signalling · 2023
    Review
  15. Article
  16. Review
  17. Article
  18. Biomedical materials (Bristol, England) · 2022
    Article
  19. Review
  20. Bio-protocol · 2021
    Article

9 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

4 authors at 3 institutions in 2 countries.

X Lucas LuBone Bioengineering Laboratory, Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA.
Bo Huo
Miri Park
X Edward Guo
University of Delaware · USColumbia University · USInstitute of Mechanics · CN

Funding

Mechanobiology of 3D Trabecular Bone ExplantsR01AR052461 · NIAMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI GUO, X. EDWARD · 2009 to 2014
$1.7M
Implicit Learning in Osteocyte Network under Mechanical LoadingRC1AR058453 · NIAMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI GUO, X. EDWARD · 2009 to 2010
$915k
Mechanotransduction in Osteocytic Network and OsteoblastR21AR052417 · NIAMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI GUO, X. EDWARD · 2006 to 2007
$365k
Pseudo-3D Cytoskeleton Dynamics and Signal Activation in Osteocytes under FlowR21AR059917 · NIAMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI GUO, X. EDWARD · 2010 to 2011
$329k
NIAMS NIH HHS R01 AR052461NIAMS NIH HHS R21 AR052417NIAMS NIH HHS R21 AR059917NIAMS NIH HHS RC1 AR058453
6 · The paper itself

Abstract

The fluid flow in the lacunar-canalicular system of bone is an essential mechanical stimulation on the osteocyte networks. Due to the complexity of human physical activities, the fluid shear stress on osteocyte bodies and processes consists of both steady and oscillatory components. In this study, we investigated and compared the intracellular calcium ([Ca(2+)](i)) responses of osteocytic networks under steady and oscillatory fluid flows. An in vitro osteocytic network was built with MLO-Y4 osteocyte-like cells using micro-patterning techniques to simulate the in vivo orderly organization of osteocyte networks. Sinusoidal oscillating fluid flow or unidirectional steady flow was applied on the cell surface with 2Pa peak shear stress. It was found that the osteocytic networks were significantly more responsive to steady flow than to oscillatory flow. The osteocytes can release more calcium peaks with higher magnitudes at a faster speed under steady flow stimulation. The [Ca(2+)](i) signaling transients under the steady and oscillatory flows have significantly different spatiotemporal characters, but a similar responsive percentage of cells. Further signaling pathway studies using inhibitors showed that endoplasmic reticulum (ER) calcium store, extracellular calcium source, ATP, PGE(2) and NO related pathways play similar roles in the [Ca(2+)](i) signaling of osteocytes under either steady or oscillating flow. The spatiotemporal characteristics of [Ca(2+)](i) transients under oscillating fluid flow are affected more profoundly by pharmacological treatments than under the steady flow. Our findings support the hypothesis that the [Ca(2+)](i) responses of osteocytic networks are significantly dependent on the profiles of fluid flow.

Indexed as

OscillometryRheologyAnimalsCalciumCalcium SignalingCell CountCell LineHumansMiceModels, BiologicalOsteocytesRatsTime FactorsCalcium

Identifiers

PMID22750013
PMCPMC3412915
OpenAlexW1983878512

What OpenQuestion holds

Textmetadata
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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.