Influence of Uzara and forskolin on Na+ and Cl− fluxes in HT-29/B6 cells.

JNa and JCl, unidirectional Na+ and Cl− fluxes; ms, from mucosal to serosal side; sm, from serosal to mucosal side; all fluxes are expressed as µmol·h−1·cm−2.Jnet, net fluxes (Jms-Jsm).Jres, residual fluxes (ISC-JNanet+JClnet, usually assumed to reflect bicarbonate secretion).ISC, short-circuit current (for comparison expressed in µmol·h−1·cm−2 of monovalent cations).Rt, transepithelial resistance (Ω·cm2).All values represent means ± SEM.*, P versus control #, P versus control §, P versus forskolin alone