Table 2.
Recovery time (in minutes) for 20, 30, 40, 70, and 100 mg/kg AESP and met-AESP in WKY and SHR.
| Recovery time (min) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Dose (mg/kg) | AESP | Met-AESP | |||||||
| MAP | SBP | DBP | HR | MAP | SBP | DBP | HR | ||
| 20 | WKY | 2 | 2 | 2 | n.a | n.a | n.a | n.a | n.a |
| SHR | 1 | 1 | 2 | n.a | n.a | n.a | n.a | n.a | |
| 30 | WKY | 3 | 3 | 3 | n.a | n.a | n.a | n.a | n.a |
| SHR | 1 | 1 | 2 | n.a | 3 | 3 | 4 | n.a | |
| 40 | WKY | 3 | 3 | 3 | n.a | 4 | 4 | 4 | n.a |
| SHR | 2 | 2 | 2 | n.a | 4 | 4 | 4 | n.a | |
| 70 | WKY | 4 | 4 | 4 | n.a | 4 | 4 | 4 | n.a |
| SHR | 2 | 2 | 2 | n.a | 4 | 5 | 6 | n.a | |
| 100 | WKY | 5 | 6 | 6 | 17 | 5 | 6 | 5 | n.a |
| SHR | 3 | 4 | 4 | 5 | 4 | 4 | 5 | n.a | |
Recovery time: the time when the averaged readings of MAP, SBP, DBP, and HR were no longer significantly different as compared to the initial baseline values. MAP: recorded mean arterial blood pressure in millimetres of mercury, HR: recorded heart rate in beats per minute, AESP: aqueous extract of S. polyanthum leaves, met-AESP: residual methanolic extract of S. polyanthum leaves, WKY: Wistar-Kyoto rats, SHR: spontaneously hypertensive rats, n.a: there were no changes observed in the baselines of MAP, SBP, DBP, and HR upon administration of the respective doses.