Fig. 4.
Normalized NHE3 mRNA (with respect to the average of the baseline; A), NHE3-mediated Na+ flux (B), Na+-dependent glucose cotransporter 2 (SGLT2)-mediated Na+ flux (C), and Na+-phosphate cotransporter (NaPi)-mediated Na+ flux (D), obtained under baseline conditions. Gray shading and white regions correspond to activity and rest cycles, respectively.