Figure 4.
Effects of apical exposure to zinc chloride (ZnCl2) on RT of minimal defined serum-free medium (MDSF) (A)- or MDSF supplemented with 10% newborn bovine serum (MDS) (B)-grown rat alveolar epithelial cell monolayers (RAECMs) after 1, 6, and 24 hours ( n = 3). RAECMs were exposed apically to ZnCl2 at 18 and 295 μg/ml. RT of MDSF- and MDS-grown RAECMs before ZnCl2 exposure was 2.13 (±0.16) kΩcm2 (n = 6) and 2.95 (±0.37) kΩcm2 (n = 6), respectively. *Significantly different (P < 0.05) from control (RAECMs not exposed to ZnCl2).