Fig. 3

Dopamine β-hydroxylase (DβH) activity in adrenal glands of salt-inducible kinase 1 (SIK1) knockout (sik1−/−) and wild-type (sik1+/+) littermate mice challenged either a high-salt (8% NaCl) or control (0.3% NaCl) diet. Mean ± SEM; n = 5 per group; values were determined to be significantly different from sik1+/+ mice (*P < 0.05) or from control diet-fed counterparts (#P < 0.05) group by one-way analysis of variance followed by Fisher’s least significant difference (LSD) test