Table 4.
Control (n = 10) | Oral Contraceptive (n = 13) | Main effect of Nitroprusside | Main effect of Group | |
---|---|---|---|---|
Diameter (cm) | ||||
Baseline | 0.34 ± 0.01 | 0.33 ± 0.01 | <0.001 | 0.072 |
0.5 μg/100 g/min | 0.35 ± 0.01A | 0.35 ± 0.01A | ||
1.0 μg/100 g/min | 0.37 ± 0.01A | 0.36 ± 0.01A | ||
2.0 μg/100 g/min | 0.39 ± 0.01ABC | 0.38 ± 0.01ABC | ||
Heart Rate (beats/min) | ||||
Baseline | 59 ± 3 | 65 ± 3 | 0.329 | <0.001 |
0.5 μg/100 g/min | 57 ± 2 | 68 ± 4 | ||
1.0 μg/100 g/min | 60 ± 2 | 71 ± 3 | ||
2.0 μg/100 g/min | 62 ± 3 | 72 ± 3 | ||
Mean Arterial Blood Pressure (mmHg) | ||||
Baseline | 86 ± 3 | 90 ± 2 | 0.009 | 0.039 |
0.5 μg/100 g/min | 79 ± 3A | 85 ± 3A | ||
1.0 μg/100 g/min | 79 ± 3A | 82 ± 2A | ||
2.0 μg/100 g/min | 78 ± 2A | 80 ± 3A | ||
Forearm Blood Flow (mL/min/100 g) | ||||
Baseline | 5.8 ± 0.9 | 6.9 ± 0.7 | <0.001 | 0.004 |
0.5 μg/100 g/min | 20.3 ± 3.5A | 24.0 ± 2.7A | ||
1.0 μg/100 g/min | 22.8 ± 3.9A | 32.2 ± 3.5A | ||
2.0 μg/100 g/min | 28.6 ± 5.0ABC | 40.7 ± 3.1ABC | ||
Forearm Vascular Conductance (mL/min/100 g/100 mmHg) | ||||
Baseline | 6.7 ± 0.9 | 7.7 ± 0.8 | <0.001 | 0.015 |
0.5 μg/100 g/min | 25.6 ± 4.3A | 28.6 ± 3.8A | ||
1.0 μg/100 g/min | 28.9 ± 4.9A | 39.7 ± 4.9A | ||
2.0 μg/100 g/min | 36.7 ± 6.2ABC | 53.0 ± 5.7ABC |
Data are presented as Mean ± SEM.
p < 0.05 vs. Baseline;
p < 0.05 vs. 0.5 μg/100 g/min;
p < 0.05 vs. 1.0 μg/100 g/min. From the initial model which included Group-by-Nitroprusside interaction effect, no significant interaction was detected (p > 0.05). Bold values highlight significance.