Figure 6.

Robust glucose-induced J^Na_MS are observed in cldn15^−/− mice under open-circuit conditions: Glucose-induced equivalent I_sc (A) and ΔJ^Na (B) were measured simultaneously under open-circuit conditions. Where indicated by the arrows, glucose was added to the mucosal side. Equivalent I_sc was determined the same as in Figure 3. Closed squares indicate J^Na_MS and open squares indicate J^Na_SM (n = 7 and 6, M to S and S to M, respectively). Each point represents the mean ± SE. Where error bars are absent, they are smaller than the symbol used. * p < 0.05 as compared with the baseline control.