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The pain of sickle cell
News from The Scientist 2002, 3(1):20021111-01
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Nitric oxide gas has a short half-life and is produced by vascular endothelial cells where it is responsible for controlling vascular muscle tone. The interaction between NO and cell free hemoglobin released during chronic hemolytic diseases such as sickle-cell disease have been poorly understood. In November 11 Nature Medicine, Christopher Reiter and colleagues at the National Institutes of Health, Bethesda, USA, show that in sickle-cell disease cell-free ferrous hemoglobin consumes the NO produced by endothelial cells, diverting it from smooth-muscle cells (Nature Medicine, DOI:10.1038/nm799, November 11, 2002).
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