Figure 1
From: Ultrafine carbon particle mediated cardiovascular impairment of aged spontaneously hypertensive rats
Circadian rhythmicity of physiological and behavioral parameters of spontaneously hypertensive rats (SHRs). The figure shows representative diastolic blood pressure (dBP), systolic blood pressure (sBP), heart rate (HR), body temperature (T) and physical activity (Act) during baseline, exposure and recovery periods of a single SHR rat. The gray segments indicate the dark periods (night time). Each data point of every parameter represents an average of 10-minutes data segments.