Fig. 6From: Impact of gonadectomy on blood pressure regulation in ageing male and female ratsMean arterial blood pressure (mmHg) and heart rate (bpm) measured by tail-cuff system CODA. The SBP (a) and DBP (b) was decreased by castration that was more pronounced at 18 months of age (interaction age × surgery, P < 0.05). There was a significant increase in the heart rate (HR; c) in the M-GONADX at 18 months of age, P < 0.05. Data are presented as mean ± SEM for n = 8 animal per group,*P < 0.05Back to article page