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Figure 2 Top panel: Relative change (percent compared with baseline) of anterior wall myocardial perfusion in response to IV adenosine in normal pigs (n = 8), hypercholesterolemic pigs (HC, n = 8), and HC pigs that received dietary antioxidant supplementation (HC + AO, n = 6). Bottom panel: Relative change (percent compared with baseline) of anterior wall microvascular permeability index in response to IV adenosine in normal, HC and HC + AO pigs. *p < 0.05 compared with normal and HC + AO pigs. HC = hypercholesterolemia; HC + AO = HC plus long-term vitamin supplementation.