Table 1.
Resting cardiovascular variables in the experimental groups described in the Methods
| Experiment 1 (n=9) | Experiment 2 (n=8) | Experiment 3 (n=8) | Experiment 4 & 6 (n=8) | Experiment 5 (n=4) | |
|---|---|---|---|---|---|
| Heart rate (beats min−1) | 339±8 | 328±3 | 350±9 | 334±7 | 338±12 |
| Mean BP (mmHg) | 103±3 | 103±2 | 103±2 | 107±3 | 103±1 |
| Renal DS (kHz) | 10.2±1.0 | 8.7±0.5 | 7.7±0.6 | 7.3±0.7 | 8.3±1.2 |
| Mesenteric DS (kHz) | 11.8±0.7 | 11.9±1.0 | 9.1±0.7 | 10.3±0.5 | 9.1±0.2 |
| Hindquarters DS (kHz) | 3.7±0.5 | 4.2±0.5 | 4.2±0.3 | 4.2±0.4 | 4.0±0.6 |
| Renal VC ((kHz mmHg−1) 103) | 98±9 | 86±6 | 76±6 | 69±8 | 80±12 |
| Mesenteric VC ((kHz mmHg−1) 103) | 115±8 | 117±11 | 89±7 | 97±7 | 88±2 |
| Hindquarters VC ((kHz mmHg−1) 103) | 36±4 | 41±5 | 41±4 | 40±4 | 38±5 |
All values are mean±s.e.m. for pretreatment recordings. DS=Doppler shift, VC=vascular conductance. The data for Experiment 1 represent those recorded on the first day (see Methods), the data for Experiment 2 are means of the two subgroups (see Methods); the animals in experiments 4 and 6 were the same (see Methods) and are shown as a single group.