Among five potentially probiotic lactobacilli investigated, Lactobacillus plantarum MF1298 and Lactobacillus salivarius DC5 showed the highest increase in the transepithelial electrical resistance (TER) of polarized monolayers of Caco-2 cells, and this increase was shown to be dose dependent. Furthermore, preincubation with MF1298 attenuated a decrease in TER induced by Listeria monocytogenes.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1287686PMC
http://dx.doi.org/10.1128/AEM.71.11.7528-7530.2005DOI Listing

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