Fig. 4.
Summary of inhibitor action on TES-induced coronary artery relaxation. Relaxation response to 25 μM TES was measured in the presence of 20 μM l-NMMA (n = 6), 20 μM LY-83583 (LY, n = 6), 10 μM 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ, n = 6), or 100 μM SQ-22536 (SQ, n = 4). Relaxation to 500 μM 8-Br-cGMP was used as a positive control. Each bar represents the mean relaxation response ± SE (n = 4–6). *P < 0.05 compared with TES alone.