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Studies on the alignment of fibroblasts in uniform applied electrical fields

Identifieur interne : 000651 ( Istex/Corpus ); précédent : 000650; suivant : 000652

Studies on the alignment of fibroblasts in uniform applied electrical fields

Auteurs : N. J. Ross ; Jack M. Ferrier ; Jane E. Aubin

Source :

RBID : ISTEX:ED01CBAA0BC3839E5000058A57ABB95FB3E905B5

English descriptors

Abstract

Uniform electrical fields have been applied to human gingival fibroblasts by means of uniform ionic currents passed through a thin chamber. Cells were observed to align in fields between 0.1 and 1.5 V/mm but did not display directed motion toward the anode or the cathode of the chamber. Statistical analysis of directional data was used to distinguish threshold levels of orientation at low field intensities, to quantify the dependence of alignment on time and field intensity, and to analyze differences between alignment of cells treated with the Ca2+ transport modifiers A23187, verapamil, and lanthanum. Alignment occurred at a steady rate and was dependent in a saturating fashion on field strength. The Ca2+ ionophore A23187 had a significant inhibitory effect on cell alignment in applied electrical fields; however, the Ca2+ channel blockers lanthanum and verapamil did not have a significant effect on alignment.

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DOI: 10.1002/bem.2250100406

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ISTEX:ED01CBAA0BC3839E5000058A57ABB95FB3E905B5

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<abstract lang="en">Uniform electrical fields have been applied to human gingival fibroblasts by means of uniform ionic currents passed through a thin chamber. Cells were observed to align in fields between 0.1 and 1.5 V/mm but did not display directed motion toward the anode or the cathode of the chamber. Statistical analysis of directional data was used to distinguish threshold levels of orientation at low field intensities, to quantify the dependence of alignment on time and field intensity, and to analyze differences between alignment of cells treated with the Ca2+ transport modifiers A23187, verapamil, and lanthanum. Alignment occurred at a steady rate and was dependent in a saturating fashion on field strength. The Ca2+ ionophore A23187 had a significant inhibitory effect on cell alignment in applied electrical fields; however, the Ca2+ channel blockers lanthanum and verapamil did not have a significant effect on alignment.</abstract>
<subject lang="en">
<genre>keywords</genre>
<topic>human gingival fibroblasts</topic>
<topic>statistics of directional data</topic>
<topic>Ca2+ transport</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Bioelectromagnetics</title>
<subTitle>Journal of the Bioelectromagnetics Society, The Society for Physical Regulation in Biology and Medicine, The European Bioelectromagnetics Association</subTitle>
</titleInfo>
<titleInfo type="abbreviated">
<title>Bioelectromagnetics</title>
</titleInfo>
<genre type="journal">journal</genre>
<subject>
<genre>article-category</genre>
<topic>Article</topic>
</subject>
<identifier type="ISSN">0197-8462</identifier>
<identifier type="eISSN">1521-186X</identifier>
<identifier type="DOI">10.1002/(ISSN)1521-186X</identifier>
<identifier type="PublisherID">BEM</identifier>
<part>
<date>1989</date>
<detail type="volume">
<caption>vol.</caption>
<number>10</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>4</number>
</detail>
<extent unit="pages">
<start>371</start>
<end>384</end>
<total>14</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">ED01CBAA0BC3839E5000058A57ABB95FB3E905B5</identifier>
<identifier type="DOI">10.1002/bem.2250100406</identifier>
<identifier type="ArticleID">BEM2250100406</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 1989 Wiley‐Liss, Inc., A Wiley Company</accessCondition>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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