the inhibitory effects of 10 microm l-noarg on nanc relaxations were reversed by l-arginine ( by 131 % ) , l-citrulline ( by 75 % ) , l-arginine methyl ester ( by 46 % ) and l-homoarginine ( by 22 % ) , but were unaffected by a variety of other amino acids and their derivatives ( all at 100 microm ) .
C0068821
noarg
C0003765
arginine