Figure 1
From: Non-endothelial endothelin counteracts hypoxic vasodilation in porcine large coronary arteries
Original trace illustrating the relaxation induced by lowering the oxygen concentration. (A) Pig coronary artery with endothelium, and (B) without endothelium. The arteries were contracted with PGF2α (10 μM), and O2 was gradually lowered, then the bath solution was exchanged (wash), the artery was reoxygenated and after a new contraction with PGF2α endothelial function was evaluated by adding bradykinin (30 nM).