Figure 1.

Change in trans-epithelial electrical resistance (TEER) across confluent Caco-2 monolayers (5 days old) over time in the presence of different optical densities of L. plantarum MB452. The change in TEER is the percentage change compared to the initial TEER for each monolayer. The values plotted are the means for four monolayers and the error bars show the SEM. OD = the starting optical density of the L. plantarum cultures at 600 nm.