Fig. 3. Myocardial microvascular response to adenosine diphosphate (ADP).
The microvascular relaxation response to the endothelial-dependent vasorelaxing agent ADP is dysfunctional in the HCD group and normalized to the control in the HCD-R group (*P<0.001). Addition of L-NG-Nitroarginine methyl ester, a specific nitric oxide inhibitor, with ADP to control vessels demonstrates a significant decrease in microvascular vasorelaxation as compared to ADP alone (*P<0.001).
