Nitric oxide (NO) is a potent vasodilator that is produced in endothelial cells and has been assumed to act exclusively at its site of synthesis. New evidence suggests that red blood cells distribute NO bioactivity, matching blood flow to tissue oxygen demands and endowing NO with features of a hormone (pages 711–717).
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Lane, P., Gross, S. Hemoglobin as a chariot for NO bioactivity. Nat Med 8, 657–658 (2002). https://doi.org/10.1038/nm0702-657
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DOI: https://doi.org/10.1038/nm0702-657
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