Fig. 5From: Impact of gonadectomy on blood pressure regulation in ageing male and female ratsMean arterial blood pressure (mmHg) and heart rate (bpm) assessed telemetrically. Arterial blood pressure and heart rate were assessed telemetrically at 12 months of age. Females had a lower systolic blood pressure than males (SBP (a)), P < 0.05. The diastolic blood pressure (DBP (b)) was lower in females (P < 0.001) and in sham animals (P < 0.05), and there was an effect of ovariectomy (P < 0.01). Females mean heart rate (HR (c)) was significantly higher than all other groups (P < 0.001), and this was reduced by ovariectomy (P < 0.01). Additionally, sham animals had higher HR than gonadectomised rats (P < 0.05). Data are presented as mean ± SEM for n = 8 animal per group,*P < 0.05; **P < 0.01; ***P < 0.001Back to article page