Figure 1.

Bar graph showing increased TER across T84 cell monolayers after continuous TGF-β treatment (10 ng/ml, 4 to 72 hours) or after a 1-hour pulse with cytokine (denoted as 72h^Δ). TER values were recorded before cytokine treatment for comparison against values at the end of each time point (indicated as percent pretreatment value), and these were compared against naïve, time-matched controls (mean ± SEM, *P < 0.05, n = 3 to 10 monolayers). Pretreatment TER values were 609 ± 189 Ω·cm² and 607 ± 158 Ω·cm² for naïve controls and pre-TGF-β treatment, respectively.