Summary
Hypercholesterolemia attenuates endothelium-dependent vasorelaxation and augments the responses to vasoconstrictor agents. Both effects are largely due to a reduction in the release of endothelium-derived relaxing factor. Since endothelium-derived relaxing factor is now known to be nitric oxide derived from the metabolism of L-arginine, we hypothesized that the abnormal vascular response in hypercholesterolemia could be corrected by supplying the precursor to EDRF, L-arginine. In a series of studies, we have found that conduit and resistance vessels of hypercholesterolemic animals demonstrate endothelial dysfunction which is reversed after exposure to high concentrations of exogenous L-arginine. The experiments suggest that hypercholesterolemia induces a reversible dysfunction of arginine availability or metabolism.
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© 1991 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG, Darmstadt
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Cooke, J.P., Dzau, J., Creager, A. (1991). Endothelial dysfunction in hypercholesterolemia is corrected by L-arginine. In: Drexler, H., Zeiher, A.M., Bassenge, E., Just, H. (eds) Endothelial Mechanisms of Vasomotor Control. Steinkopff. https://doi.org/10.1007/978-3-642-72461-9_17
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DOI: https://doi.org/10.1007/978-3-642-72461-9_17
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