Intrarenal Infusion Rate of Angiotensin II (ng/kg/min) | |||||||||
---|---|---|---|---|---|---|---|---|---|
0 | 10 | 30 | 100 | 300 | |||||
SHR, control (n = 7) | |||||||||
MABP | 106 ± 5 | 107 ± 5 | 110 ± 6 | 114 ± 7 | 125 ± 10 | ||||
HR | 372 ± 25 | 374 ± 19 | 375 ± 21 | 376 ± 18 | 374 ± 19 | ||||
Right RBF | 4.4 ± 0.5 | 4.5 ± 0.5 | 4.5 ± 0.6 | 4.3 ± 0.6 | 3.5 ± 0.4 | ||||
SHR, pretreated with angiotensin II (n = 6) | |||||||||
MABP | 108 ± 6 | 110 ± 6 | 109 ± 5 | 117 ± 7 | 134 ± 7a | ||||
HR | 360 ± 31 | 363 ± 29 | 363 ± 29 | 366 ± 30 | 377 ± 27 | ||||
Right RBF | 4.1 ± 1.2 | 4.1 ± 1.2 | 4.2 ± 1.3 | 3.9 ± 1.3 | 3.2 ± 1.0 | ||||
SHR, pretreated with captopril (n = 7) | |||||||||
MABP | 88 ± 3 | 90 ± 3 | 96 ± 3 | 110 ± 5a | 123 ± 5a | ||||
HR | 383 ± 10 | 384 ± 9 | 383 ± 10 | 390 ± 9 | 386 ± 17 | ||||
Right RBF | 2.5 ± 0.4 | 2.6 ± 0.4 | 2.7 ± 0.4 | 2.2 ± 0.4 | 1.7 ± 0.3 |
↵a P < 0.05 compared with 0 (baseline).