Figure 4.

Time-course changes in mean arterial blood pressure (MSAP), heart rate (HR) or total power density of the vasomotor components (0–0.8 Hz) in the systemic arterial pressure spectrum in rats that received microinjection bilaterally into the RVLM of equimolar doses (250 pmoles) of S-methylisothiourea (SMT) or N⁶-(1-iminoethyl)-L-lysine (L-NIL); or aCSF. Data on AG from Figures 2 and 3 were duplicated for comparison. Values are mean±s.e.mean, n=6–7 animals per experimental group. *P<0.05 vs aCSF group at corresponding time-points in the Scheffé multiple-range test.