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. 2011 Jun 10;8:18. doi: 10.1186/1742-4682-8-18

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Copyright ©2011 Ahl et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Critical luminal electrolyte concentration. The critical electrolyte concentration , i.e. the luminal electrolyte concentration at which the water flux through the tight junction changes sign is depicted in dependence on the width of the lateral intercellular cleft b. The solid line represents the results of Eq. 9. As evident from this equation a 1/b dependence of can be observed. The + - signs show the results from a full numerical simulation of a finite volume model taking various additional effects into account (see additional file 1). Clearly the principal dependency is highly similar.

Inline graphic — Critical luminal electrolyte concentration. The critical electrolyte concentration , i.e. the luminal electrolyte concentration at which the water flux through the tight junction changes sign is depicted in dependence on the width of the lateral intercellular cleft b. The solid line represents the results of Eq. 9. As evident from this equation a 1/b dependence of can be observed. The + - signs show the results from a full numerical simulation of a finite volume model taking various additional effects into account (see additional file 1). Clearly the principal dependency is highly similar.