'Transmural flow imposes shear stress on smooth muscle cells in the artery wall?'

Woo Sik Kim, John M. Tarbell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Smooth muscle cells in culture have been shown to be sensitive to fluid shear stress. Smooth muscle cells in vivo may be exposed to shear stress associated with transmural volume flow. To investigate this hypothesis we combine a phenomenological theory of flow in deformable, porous media with a pore theory to model transmural volume flow in arteries and to calculate the shear stress on the pore walls (smooth muscle cell surface). The model accurately describes the dependence of hydraulic conductivity, porosity and albumin partition coefficient on the transmural pressure gradient. It predicts pore wall shear stresses ranging from 0.1N/m2 to 0.3N/m2 for transmural pressures between 70 and 180 mmHg. These levels of shear stress will stimulate endothelial cells and may also affect smooth muscle cells.

Original languageEnglish
Title of host publication1991 Advances in Bioengineering
PublisherPubl by ASME
Pages429-432
Number of pages4
ISBN (Print)0791808890
Publication statusPublished - 1991
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Atlanta, GA, USA
Duration: 1 Dec 19916 Dec 1991

Publication series

NameAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
Volume20

Conference

ConferenceWinter Annual Meeting of the American Society of Mechanical Engineers
CityAtlanta, GA, USA
Period1/12/916/12/91

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