Figure 4
Polysorbate-80 lowered the cell index of iBREC. (a) Polysorbate-80 (n ≥ 6) or (b) polysorbate-20 (n ≥ 6) were added to a confluent monolayer of iBREC cultivated on gold electrodes and the cell index was recorded continuously as a measure of barrier function. Cell index values were normalized in relation to those measured immediately before addition of the detergents and are shown as means with standard deviations. Data were analyzed with two-way ANOVA followed by Sidak’s multiple comparison test. (a) Concentrations of polysorbate-80 ≥ 0.0001% significantly and persistently lowered cell index values. (b) Polysorbate-20 had no effect on the cell index.
