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Table 1 Vasomotion of isolated segments of the mesenteric artery

From: Vasomotion of mice mesenteric arteries during low oxygen levels

  Oxygen concentration (%)
14.4
n = 24
12.2
n = 26
2.7 0
Percentage of the initial diameter
 Overall 0.58 ± 0.59
(n = 10)
0.77 ± 0.57
(n = 10)
0.92 ± 0.64
(n = 10)
0.43 ± 0.28
(n = 5)
 Constriction − 0.79 ± 0.05
(n = 5)
− 0.765 ± 0.14
(n = 4)
− 1.213 ± 0.28
(n = 3)
− 0.6
(n = 1)
 Dilation 1.96 ± 0.55
(n = 5)
1.8 ± 0.52
(n = 6)
1.83 ± 0.52
(n = 7)
0.68 ± 0.13
(n = 4)
Percentage of maximal dilatation and constriction
 Overall 23.2 ± 14.62
(n = 10)
26.92 ± 14.35
(n = 10)
31.94 ± 15.32
(n = 10)
14 ± 5.96
(n = 5)
 Constriction − 8.21 ± 0.56
(n = 5)
− 7.92 ± 4.42
(n = 5)
− 12.54 ± 2.92
(n = 5)
− 6.21
(n = 1)
 Dilation 54.6 ± 15.31
(n = 5)
50.14 ± 14.41
(n = 6)
51.01 ± 14.42
(n = 7)
19.05 ± 3.61
(n = 4)
Percentage of the initial diameter in Ca2+-free Tyrode’s solution
 Overall 0.36 ± 0.39
(n = 8)
1.07 ± 0.38
(n = 8)
1.52 ± 0.43
(n = 8)
 Constriction − 1.14 ± 0.4
(n = 2)
− 0.39
(n = 1)
 Dilation 0.85 ± 0.19
(n = 6)
1.49 ± 0.3
(n = 6)
1.53 ± 0.42
(n = 7)
Percentage of maximal dilatation and constriction in Ca2+-free Tyrode’s solution
 Overall 14.93 ± 7.5
(n = 8)
38.58 ± 10.03
(n = 8)
37.36 ± 12.06
(n = 8)
 Constriction − 11.8 ± 4.14
(n = 2)
− 4.01
(n = 1)
 Dilation 23.82 ± 5.29
(n = 6)
41.51 ± 8.35
(n = 6)
42.7 ± 11.68
(n = 7)
Percentage of the initial diameter in Tyrode’s solution containing NiCl2
 Overall − 1.31 ± 0.49
(n = 6)
− 1.42 ± 0.48
(n = 6)
− 1.54 ± 0.44
(n = 6)
Percentage of maximal constriction in Tyrode’s solution containing NiCl2
 Overall − 13.6 ± 5.03
(n = 6)
− 14.7 ± 4.93
(n = 6)
− 15.93 ± 4.52
(n = 6)
-
Percentage of the initial diameter in eNOS− /−-mice
 Overall − 0.42 ± 0.31
(n = 8)
− 0.33 ± 0.6
(n = 8)
− 0.21 ± 0.68
(n = 8)
 Constriction − 1.37 ± 0.22
(n = 3)
− 2.05 ± 0.52
(n = 3)
− 2.32 ± 0.46
(n = 3)
 Dilation 0.4 ± 0.1
(n = 2)
0.88 ± 0.16
(n = 4)
1.05 ± 0.17
(n = 5)
Percentage of maximal dilatation and constriction in eNOS−/−-mice
 Overall − 2.56 ± 4.1
(n = 8)
3.43 ± 9.21
(n = 8)
9.38 ± 10.73
(n = 8)
 Constriction − 10.64 ± 2.3
(n = 3)
− 23.64 ± 4
(n = 3)
− 24 ± 4.73
(n = 3)
 Dilation 11.05 ± 2.3
(n = 2)
24.59 ± 4.58
(n = 4)
29.4 ± 4.85
(n = 5)
Percentage of the initial diameter in TASK1−/−-mice
 Overall 0.46 ± 0.38
(n = 4)
0.32 ± 0.9
(n = 4)
0.15 ± 1.03
(n = 4)
 Constriction − 0.31
(n = 1)
− 2.19
(n = 1)
− 2.5
(n = 1)
 Dilation 1.07 ± 0.24
(n = 2)
1.16 ± 0.42
(n = 3)
1.55 ± 0.65
(n = 2)
Percentage of maximal dilatation and constriction in TASK1−/−-mice
 Overall 14.08 ± 9.89
(n = 4)
18.56 ± 16.67
(n = 4)
15.16 ± 19
(n = 4)
 Constriction − 3.23
(n = 1)
−  22.6
(n = 1)
−  25.86
(n = 1)
 Dilation 29.78 ± 6.75
(n = 2)
32.3 ± 11.57
(n = 3)
43.24 ± 18.08
(n = 2)
  1. Measured values shown as percentage changes of the arterial diameter. Data are shown as mean ± standard error of the mean (SEM)