Table 2.
Effect of microinjecting ANGII into the NTS on cardiorespiratory variables in the WHBP
| Control | ANGII | Wash | |
|---|---|---|---|
| ymax (peak response) (beats min−1) | 33.59 | 14.48 | 39.9 |
| Midpoint (beats min−1) | 10.77 | 12.42 | 14.45 |
| Sigmoid slope coefficient | 0.38 | 0.44 | 0.26 |
| ΔPthreshold (mmHg) | 5.1 | 5.0 | 5.0 |
| Slope of the linear part (gain of the reflex) | 3.10 | 1.02 | 2.2 |
The peak response (ymax), midpoint and sigmoid slope coefficients were obtained using Prizm software. The values for the change in perfusion pressure threshold (ΔPthreshold) were obtained from the intercepts derived from a linear regression analysis (Excel). See text and Fig. 4 for further details.