Ctrl (n = 16) | Indo (n = 6) | SC 560 (n = 12) | NS 398 (n = 10) | AH 6809 (n = 14) | L 161-982 (n = 11) | CAY 10441 (n = 12) | TTX (n = 8) | |
---|---|---|---|---|---|---|---|---|
Resting luminal diameter, μm | 17.3 ± 1.9 | 14.0 ± 2.5 | 19.3 ± 2.2 | 16.1 ± 1.2 | 14.9 ± 1.4 | 16.9 ± 2.4 | 16.6 ± 1.5 | 16.3 ± 2.2 |
U(16,6) = 36 | U(16,12) = 78 | U(16,10) = 80 | U(16,14) = 95 | U(16,11) = 79 | U(16,12) = 93 | U(16,8) = 61 | ||
p = 0.407007 | p = 0.42275 | p = 1 | p = 0.49841 | p = 0.680026 | p = 0.909139 | p = 0.880976 | ||
n.s. | ||||||||
Wall thickness, μm | 4.9 ± 0.4 | 4.6 ± 0.5 | 4.2 ± 0.4 | 4.7 ± 0.4 | 4.9 ± 0.4 | 5.2 ± 0.5 | 4.2 ± 0.4 | 3.9 ± 0.6 |
U(16,6) = 40 | U(16,12) = 79 | U(16,10) = 75.5 | U(16,14) = 110 | U(16,11) = 76 | U(16,12) = 83 | U(16,8) = 37 | ||
p = 0.590031 | p = 0.449918 | p = 0.815935 | p = 0.951039 | p = 0.576537 | p = 0.567585 | p = 0.105638 | ||
n.s. | ||||||||
Resting stability, % | 1.2 ± 0.2 | 1.6 ± 0.2 | 1.4 ± 0.2 | 1.5 ± 0.2 | 1.4 ± 0.2 | 1.7 ± 0.3 | 1.4 ± 0.1 | 1.3 ± 0.2 |
U(16,6) = 25 | U(16,12) = 73 | U(16,10) = 57.5 | U(16,14) = 93 | U(16,11) = 61 | U(16,12) = 72 | U(16,8) = 49 | ||
p = 0.098026 | p = 0.301529 | p = 0.240562 | p = 0.447547 | p = 0.194506 | p = 0.28029 | p = 0.382604 | ||
n.s. | ||||||||
Constriction level, % | 46.5 ± 3.2 | 46.0 ± 6.5 | 45.1 ± 4.9 | 39.4 ± 5.0 | 37.5 ± 3.5 | 37.2 ± 4.5 | 37.2 ± 3.5 | 35.3 ± 4.8 |
U(16,6) = 45 | U(16,12) = 93.5 | U(16,10) = 52 | U(16,14) = 69 | U(16,11) = 58.5 | U(16,12) = 57 | U(16,8) = 37.5 | ||
p = 0.857733 | p = 0.909139 | p = 0.149647 | p = 0.077067 | p = 0.14767 | p = 0.07354 | p = 0.105638 | ||
n.s. | ||||||||
Constriction stability, % | 3.4 ± 0.6 | 3.9 ± 0.7 | 3.2 ± 0.6 | 3.1 ± 0.4 | 3.1 ± 0.5 | 3.1 ± 0.6 | 2.6 ± 0.4 | 2.4 ± 0.2 |
U(16,6) = 35 | U(16,12) = 92.5 | U(16,10) = 74 | U(16,14) = 105 | U(16,11) = 85 | U(16,12) = 82 | U(16,8) = 50 | ||
p = 0.366773 | p = 0.873052 | p = 0.775995 | p = 0.790107 | p = 0.903538 | p = 0.536889 | p = 0.41665 | ||
n.s. |
-
Ctrl, Control; Indo, indomethacin; SC 560, COX-1 inhibitor; NS 398, COX-2 inhibitor; AH 6809, EP1/2 receptor antagonist; L 161-982, EP4 receptor antagonist; CAY 10441, IP receptor antagonist; TTX, tetrodotoxin; n, number of diving arterioles. Values are mean ± SEM Mann-Whitney U test and corresponding exact p values. n.s., not statistically significant from control condition with Bonferroni correction for multiple comparisons.