Urine sodium excretion. A, Daily average changes in urine sodium concentration. *P < 0.05 vs euhydrated groups (Eu) groups and baseline.+P < 0.05 vs Salt scrambled (SCR) B, Average urine sodium excretion during 7 days of salt treatment. Data are the mean ± SEM. *P < 0.05 vs Eu groups.+P < 0.05 vs Salt SCR. Groups: euhydrated rats injected with SCR virus (Eu SCR, n = 8); euhydrated rats injected with shBDNF virus (Eu shBDNF, n = 8); salt loaded rats injected with SCR virus (Salt SCR, n = 8) and salt loaded rats injected with shBDNF virus (Salt shBDNF, n = 8)