the observed clearance in l-carnitine deficient animals , resulting either from intraperitoneal injections of d-carnitine ( 3 g.kg-1 b.w . for four days ) or from a 6-months long diet of suboptimal amounts of precursor amino acids and vitamins for carnitine biosynthesis , was not reduced relative to the clearance in corresponding control animals .
C0087163
l-carnitine
C0007258
carnitine