Key result
Intra-arterial infusion of L-NMMA significantly decreased total reactive hyperemic flow by 20% to 30%, indicating nitric oxide helps maintain vasodilation after peak reactive hyperemia.
Why the study?
Does L-NMMA infusion alter reactive hyperemic forearm blood flow in humans?
Population
13 human subjects undergoing forearm blood flow measurement
Comparison
Intra-arterial infusion of… vs Baseline forearm blood flow
Design
Other
Authors
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May support NO assessment in vascular reactivity studies; leaves open clinical relevance in endothelial dysfunction.
Does L-NMMA infusion alter reactive hyperemic forearm blood flow in humans?
Effect estimate: 20% to 30% decrease
Nitric oxide plays a minimal role in peak reactive hyperemia but a modest role in maintaining vasodilation in human forearm vessels.
Tagawa et al. (1994) studied this question. L-NMMA vs. Baseline was evaluated on Total reactive hyperemic flow (flow debt repayment) (20% to 30% decrease). Intra-arterial infusion of L-NMMA significantly decreased total reactive hyperemic flow by 20% to 30%, indicating nitric oxide helps maintain vasodilation after peak reactive hyperemia.
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