Fig. 1

a SNA evaluated on the basis of uNE excretion in each group. *p < 0.05, **p < 0.01 Sham versus CPO, n = 8 for each. Open bar graphs indicate Sham; square-block bar graph indicates CPO. b The ratio of uNE/uNa excretion, as a marker of SNA in response to salt intake. ***p < 0.001 Sham versus CPO, n = 24 for each. Open bar graphs indicate Sham; square-block bar graph indicates CPO. SNA, sympathetic nerve activity; Sham, sham-operated control mice; CPO, chronic pressure overload mice; uNE, 24-h urinary norepinephrine; uNa, 24-h urinary sodium