Figure 4. Group CVC as a percentage of maximal vasodilatation with a 1.0°C increase in oral temperature (ΔTor) in all drug treatment sites.
Baseline CVC (%maximal) is illustrated for visual comparison. Filled bars, young subjects; open bars, older subjects. Arginase inhibition, l-arginine supplementation, and combined treatments augmented CVC in old but not young subjects. *P < 0.05, significant difference between age groups; †P < 0.001, significant versus control site young subject group; ‡P < 0.001, significant versus control site older subject group.