Figure 7.

Changes in systolic blood pressure (SBP), heart rate (HR), and baroreceptor sensitivity (BRS) in adult male, age‐matched female and ovariectomized (OVX) female rats. SBP and HR were collected from tail‐clamp technique; phenylephrine (PE) and sodium nitroprusside (SNP) were applied through femoral artery catheterization; BRS was presented as by ΔHR/ΔMABP that were collected in the presence of 2, 5, and 10 μg/kg of PE or SNP (A and B): BP and HR measurements during 6 consecutive weeks; (C and D): BRS Changes during 6 wk. Averaged data were expressed by mean ± SD, n = 6 for male and OVX rats, n = 7 for female rats. *P < 0.05 and **P < 0.05 vs male, ^# P < 0.05 and ^## P < 0.05 vs OVX