Evidence map›Paper›PMID 21289981›Full record

ArticleInternational journal of nanomedicine2010

Selective axonal growth of embryonic hippocampal neurons according to topographic features of various sizes and shapes.

David Y Fozdar, Jae Y Lee, Christine E Schmidt, Shaochen Chen

Abstract read
In one paragraph

Article in International journal of nanomedicine, 2010. 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. The Future of Biohybrid Regenerative Bioelectronics.Advanced materials (Deerfield Beach, Fla.) · 2025
    Review
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  9. Photopolymerized Microfeatures Guide Adult Spiral Ganglion and Dorsal Root Ganglion Neurite Growth.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2018
    Article
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  12. Review
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  15. Neural responses to electrical stimulation on patterned silk films.Journal of biomedical materials research. Part A · 2013
    Article
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  17. Article
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  20. Review
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.

David Y FozdarDepartment of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712-0292, USA.
Jae Y Lee
Christine E Schmidt
Shaochen Chen

Funding

NIBIB NIH HHS R01EB004429
6 · The paper itself

Abstract

purposeUnderstanding how surface features influence the establishment and outgrowth of the axon of developing neurons at the single cell level may aid in designing implantable scaffolds for the regeneration of damaged nerves. Past studies have shown that micropatterned ridge-groove structures not only instigate axon polarization, alignment, and extension, but are also preferred over smooth surfaces and even neurotrophic ligands.

methodsHere, we performed axonal-outgrowth competition assays using a proprietary four-quadrant topography grid to determine the capacity of various micropatterned topographies to act as stimuli sequestering axon extension. Each topography in the grid consisted of an array of microscale (approximately 2 μm) or submicroscale (approximately 300 nm) holes or lines with variable dimensions. Individual rat embryonic hippocampal cells were positioned either between two juxtaposing topographies or at the borders of individual topographies juxtaposing unpatterned smooth surface, cultured for 24 hours, and analyzed with respect to axonal selection using conventional imaging techniques.

resultsTopography was found to influence axon formation and extension relative to smooth surface, and the distance of neurons relative to topography was found to impact whether the topography could serve as an effective cue. Neurons were also found to prefer submicroscale over microscale features and holes over lines for a given feature size.

conclusionThe results suggest that implementing physical cues of various shapes and sizes on nerve guidance conduits and other advanced biomaterial scaffolds could help stimulate axon regeneration.

Indexed as

Analysis of VarianceAnimalsAxonsCell Culture TechniquesChi-Square DistributionEmbryo, MammalianEquipment DesignHippocampusMicroscopy, FluorescenceNeuronsRatsTissue Culture TechniquesTissue Scaffoldsaxon guidancemicropatterningpolarizationsurface topographytissue engineering

Identifiers

PMID21289981
PMCPMC3025584

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.