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Figure 2 Vascular endothelial function correlates with circulating nitric oxide (NO) pool. Endothelial function, measured as NO-dependent flow-mediated dilation of the brachial artery, correlates with the concentration of circulating nitroso/nitrosyl species (RXNO) in plasma (r = 0.41, p < 0.001). Circles = individual values; filling = number of major cardiovascular risk factors (RF).
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