Click on image to view larger version.

Figure 5 The increase in forearm blood flow with L-arginine and D-arginine compared to control in patients with initially "depressed" endothelial function (n = 11) is compared to responses in patients with better ("normal") endothelial function (n = 11). The rate-pressure product and duration of exercise at 1-mm ST-segment depression during exercise is also demonstrated. There was no significant difference between the groups by two-way repeated measures ANOVA. (D5W = dextrose 5%.)