Figure 2
From: Ultrafine carbon particle mediated cardiovascular impairment of aged spontaneously hypertensive rats
Blood pressure (BP) and heart rate (HR) changes in spontaneously hypertensive rats (SHRs) following ultrafine carbon particle (UfCP) exposure compared to control. a. Mean blood pressure (mBP) increased by 8 mmHg (4.4%) on the 1st recovery day in the UfCP exposed SHRs compared to control. b. HR responded with a lag of one day and exhibited an increase on the 2nd recovery day by 21 bpm (6.3%) in UfCP exposed SHRs compared to control. It reached baseline values on the 4th recovery day. The vertical bars represent arithmetic mean values (mean ± SE) of control (white) and exposed (black) groups. Each bar represents a combined mean value of: (72 10-minutes segments/12 h dark periods/rat)×7 rats. (n = 7/experimental group; *indicates p < 0.05).