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. 1988 Sep 13;154(2):213-6.
doi: 10.1016/0014-2999(88)90101-x.

Arginine is a physiological precursor of endothelium-derived nitric oxide

H H Schmidt  1 , H Nau, W Wittfoht, J Gerlach, K E Prescher, M M Klein, F Niroomand, E Böhme
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Arginine is a physiological precursor of endothelium-derived nitric oxide

H H Schmidt et al. Eur J Pharmacol. .

Abstract

ATP dose dependently stimulated the formation and release of nitric oxide (NO) from perfused rabbit aorta. L-Canavanine, an inhibitor of various L-arginine-utilizing enzymes, abolished basal and ATP-induced NO formation and release. ATP increased the accumulation of presumably NO-derived NO2- in the medium of primary cultures of bovine aortic endothelial cells. 15NO, 15NO2- and 15NO3- formation was found when L-[guanido-15N2]arginine was added to the culture medium. We conclude that the terminal guanidino nitrogens of L-arginine are the physiological precursors of endothelium-derived NO.

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