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. 2016 Jun 8;7:215. doi: 10.3389/fphys.2016.00215

Table 4.

Effect of Nitroprusside in women using oral contraceptives.

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.

A

p < 0.05 vs. Baseline;

B

p < 0.05 vs. 0.5 μg/100 g/min;

C

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.