Figure 4From: Non-endothelial endothelin counteracts hypoxic vasodilation in porcine large coronary arteriesEffect of acute hypoxia on nitric oxide release. Effect of acute hypoxia (1% O2) on (A) constriction to PGF2α and (B) the release of NO. Results are means ± SEM of 5 experiments. Differences were evaluated with a paired t test: *P < 0.05 versus control,Back to article page