Evidence map›Paper›PMID 17605108›Full record

ArticleAnnals of biomedical engineering2007

Anisotropic diffusive transport in annulus fibrosus: experimental determination of the diffusion tensor by FRAP technique.

Francesco Travascio, Wei Yong Gu

Abstract read
In one paragraph

Article in Annals of biomedical engineering, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Human mesenchymal stem/stromal cell-derived extracellular vesicle transport in meniscus fibrocartilage.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
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  17. Relationship between solute transport properties and tissue morphology in human annulus fibrosus.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2009
    Article
  18. Strain-dependent oxygen diffusivity in bovine annulus fibrosus.Journal of biomechanical engineering · 2009
    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

2 authors.

Francesco TravascioTissue Biomechanics Laboratory, Department of Biomedical Engineering, College of Engineering, University of Miami, P.O. Box 248294, Coral Gables, FL, USA.
Wei Yong Gu

Funding

Biophysical Modeling of Solute Transport in Human IVDR01AR050609 · NIAMS · UNIVERSITY OF MIAMI CORAL GABLES · PI GU, WEIYONG · 2005 to 2008
$1.1M
NIAMS NIH HHS AR050609NIAMS NIH HHS R01 AR050609
6 · The paper itself

Abstract

The annulus fibrosus (AF) of the intervertebral disc (IVD) exhibits a fiber-organized structure which is responsible for anisotropic and inhomogeneous mechanical and transport properties. Due to its particular morphology, nutrient transport within AF is regulated by complex transport kinetics. This work investigates the diffusive transport of a small solute in the posterior and anterior regions of AF since diffusion is the major transport mechanism for low molecular weight nutrients (e.g., oxygen and glucose) in IVD. Diffusion coefficient (D) of fluorescein (332 Da) in bovine coccygeal AF was measured in the three major (axial, circumferential, and radial) directions of the IVD by means of fluorescence recovery after photobleaching (FRAP) technique. It was found that the diffusion coefficient was anisotropic and inhomogeneous. In both anterior and posterior regions, the diffusion coefficient in the radial direction was found to be the lowest. Circumferential and axial diffusion coefficients were not significantly different in both posterior and anterior regions and their values were about 130% and 150% the value of the radial diffusion coefficient, respectively. The values of diffusion coefficients in the anterior region were in general higher than those of corresponding diffusion coefficients in the posterior region. This study represents the first quantitative analysis of anisotropic diffusion transport in AF by means of FRAP technique and provides additional knowledge on understanding the pathways of nutritional supply into IVD.

Indexed as

Models, BiologicalAnimalsAnisotropyBiological Transport, ActiveBody FluidsCattleComputer SimulationDiffusionFluorescence Recovery After PhotobleachingIntervertebral DiscIn Vitro Techniques

Identifiers

PMID17605108
PMCPMC2671030

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.