A. Representative immunoblots of phosphorylation of OSR1/SPAK and NCC from db/db and control mouse kidney, with or without administration of a PI3K inhibitor (NVP-BEZ235).
B. Densitometry analysis; NVP-BEZ235 suppressed increased OSR1/SPAK and NCC phosphorylation in db/db mouse kidney. Mean ± SEM. (n=4). *p<0.05, **p<0.01.
C. Systolic blood pressure is decreased only in db/db mice with NVP-BEZ235, compared to vehicle treated db/db mice. Mean ± SEM. (n as indicated). *p<0.05.