tissue analyses 6 minutes after injection of a [ 13n ] glu bolus into myocardium revealed that 70 % of the 13n-label was present in [ 13n ] glu 12 % , 11 % , and 4 % in [ 13n ] alanine ( [ 13n ] ala ) , [ 13n ] aspartate ( [ 13n ] asp ) , and [ 13n ] glutamine ( [ 13n ] gln ) , respectively .
C0061472
glu
C0017797
gln